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增加动态分库demo

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tnt group 2022-06-21 16:04:56 +08:00
parent b2bb289669
commit 7391ac5e1d
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10
samples/Samples.DynamicDb.Npgsql/.gitignore vendored Normal file
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################################################################################
# 此 .gitignore 文件已由 Microsoft(R) Visual Studio 自动创建。
################################################################################
.vs
.vscode
**/bin
**/obj
**/Properties
*.user

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samples/Samples.DynamicDb.Npgsql/LICENSE Normal file
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MIT License
Copyright (c) 2022 dodu
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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samples/Samples.DynamicDb.Npgsql/ShardingCoreDemo.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
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MinimumVisualStudioVersion = 10.0.40219.1
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Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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{E85808EC-6138-4023-9DBE-4D5C896867F3}.Release|Any CPU.Build.0 = Release|Any CPU
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{5C6E6694-6CBC-46BE-964E-608A8D97604F}.Debug|Any CPU.Build.0 = Debug|Any CPU
{5C6E6694-6CBC-46BE-964E-608A8D97604F}.Release|Any CPU.ActiveCfg = Release|Any CPU
{5C6E6694-6CBC-46BE-964E-608A8D97604F}.Release|Any CPU.Build.0 = Release|Any CPU
{B6421961-3EF8-48FD-A291-32E1DF63141B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{B6421961-3EF8-48FD-A291-32E1DF63141B}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{B6421961-3EF8-48FD-A291-32E1DF63141B}.Release|Any CPU.Build.0 = Release|Any CPU
{212AA572-E710-447E-9F09-187B3B62D2BE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{212AA572-E710-447E-9F09-187B3B62D2BE}.Debug|Any CPU.Build.0 = Debug|Any CPU
{212AA572-E710-447E-9F09-187B3B62D2BE}.Release|Any CPU.ActiveCfg = Release|Any CPU
{212AA572-E710-447E-9F09-187B3B62D2BE}.Release|Any CPU.Build.0 = Release|Any CPU
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{B6FDDE11-E2E7-43F7-AAC6-79865FB73928}.Debug|Any CPU.Build.0 = Debug|Any CPU
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618
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/AbstaractShardingDbContext.cs Normal file
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using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.ChangeTracking;
using ShardingCore.Core.VirtualDatabase.VirtualDataSources;
using ShardingCore.Core.VirtualRoutes.TableRoutes.RouteTails.Abstractions;
using ShardingCore.EFCores.OptionsExtensions;
using ShardingCore.Extensions;
using ShardingCore.Sharding.Abstractions;
using ShardingCore.Sharding.ShardingDbContextExecutors;
using WebApplication1.Data.Models;
namespace WebApplication1.Data
{
public class AbstaractShardingDbContext : IdentityDbContext, IShardingDbContext, ISupportShardingReadWrite, IShardingTableDbContext
{
public AbstaractShardingDbContext([NotNull] DbContextOptions<AbstaractShardingDbContext> options) : base(options)
{
var wrapOptionsExtension = options.FindExtension<ShardingWrapOptionsExtension>();
if (wrapOptionsExtension != null)
_shardingDbContextExecutor = (IShardingDbContextExecutor)Activator.CreateInstance(typeof(ShardingDbContextExecutor<>).GetGenericType0(GetType()), this);
}
#region 接口实现
private readonly IShardingDbContextExecutor _shardingDbContextExecutor;
/// <summary>
/// 是否是真正的执行者
/// </summary>
private bool isExecutor => _shardingDbContextExecutor == null;
/// <summary>
/// 读写分离优先级
/// </summary>
public int ReadWriteSeparationPriority
{
get => _shardingDbContextExecutor.ReadWriteSeparationPriority;
set => _shardingDbContextExecutor.ReadWriteSeparationPriority = value;
}
/// <summary>
/// 是否使用读写分离
/// </summary>
public bool ReadWriteSeparation
{
get => _shardingDbContextExecutor.ReadWriteSeparation;
set => _shardingDbContextExecutor.ReadWriteSeparation = value;
}
/// <summary>
/// 提交
/// </summary>
/// <exception cref="NotImplementedException"></exception>
public void Commit()
{
_shardingDbContextExecutor.Commit();
}
/// <summary>
/// 异步提交
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
public Task CommitAsync(CancellationToken cancellationToken = default)
{
return _shardingDbContextExecutor.CommitAsync(cancellationToken);
}
// 检查和设置分片键支持自动创建
//private void CheckAndSetShardingKeyThatSupportAutoCreate<TEntity>(TEntity entity) where TEntity : class {
// if (entity is IShardingKeyIsGuId) {
// if (entity is IEntity<Guid> guidEntity) {
// if (guidEntity.Id != default) {
// return;
// }
// var idProperty = entity.GetObjectProperty(nameof(IEntity<Guid>.Id));
// var dbGeneratedAttr = ReflectionHelper
// .GetSingleAttributeOrDefault<DatabaseGeneratedAttribute>(
// idProperty
// );
// if (dbGeneratedAttr != null && dbGeneratedAttr.DatabaseGeneratedOption != DatabaseGeneratedOption.None) {
// return;
// }
// EntityHelper.TrySetId(
// guidEntity,
// () => GuidGenerator.Create(),
// true
// );
// }
// } else if (entity is IShardingKeyIsCreationTime) {
// AuditPropertySetter?.SetCreationProperties(entity);
// }
//}
/// <summary>
/// 根据对象创建通用的dbcontext
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entity"></param>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
public DbContext CreateGenericDbContext<T>(T entity) where T : class
{
//CheckAndSetShardingKeyThatSupportAutoCreate(entity);
var dbContext = _shardingDbContextExecutor.CreateGenericDbContext(entity);
//if (dbContext is AbpDbContext<TDbContext> abpDbContext && abpDbContext.LazyServiceProvider == null) {
// abpDbContext.LazyServiceProvider = this.LazyServiceProvider;
//}
return dbContext;
}
/// <summary>
/// 获取数据上下文
/// </summary>
/// <param name="dataSourceName"></param>
/// <param name="parallelQuery"></param>
/// <param name="routeTail"></param>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
public DbContext GetDbContext(string dataSourceName, bool parallelQuery, IRouteTail routeTail)
{
var dbContext = _shardingDbContextExecutor.CreateDbContext(parallelQuery, dataSourceName, routeTail);
//if (!parallelQuery && dbContext is AbpDbContext<TDbContext> abpDbContext) {
// abpDbContext.LazyServiceProvider = this.LazyServiceProvider;
//}
return dbContext;
}
/// <summary>
/// 获取虚拟数据源
/// </summary>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
public IVirtualDataSource GetVirtualDataSource()
{
return _shardingDbContextExecutor.GetVirtualDataSource();
}
/// <summary>
/// 通知分库分表事务
/// </summary>
/// <exception cref="NotImplementedException"></exception>
public void NotifyShardingTransaction()
{
_shardingDbContextExecutor.NotifyShardingTransaction();
}
/// <summary>
/// 回滚
/// </summary>
/// <exception cref="NotImplementedException"></exception>
public void Rollback()
{
_shardingDbContextExecutor.Rollback();
}
/// <summary>
/// 异步回滚
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
public Task RollbackAsync(CancellationToken cancellationToken = default)
{
return _shardingDbContextExecutor.RollbackAsync(cancellationToken);
}
#endregion
#region 重写dbcontext的方法
public override EntityEntry Add(object entity)
{
if (isExecutor) base.Add(entity);
return CreateGenericDbContext(entity).Add(entity);
}
public override EntityEntry<TEntity> Add<TEntity>(TEntity entity)
{
if (isExecutor) return base.Add(entity);
return CreateGenericDbContext(entity).Add(entity);
}
public override ValueTask<EntityEntry<TEntity>> AddAsync<TEntity>(TEntity entity, CancellationToken cancellationToken = new CancellationToken())
{
if (isExecutor) return base.AddAsync(entity, cancellationToken);
return CreateGenericDbContext(entity).AddAsync(entity, cancellationToken);
}
public override ValueTask<EntityEntry> AddAsync(object entity, CancellationToken cancellationToken = new CancellationToken())
{
if (isExecutor) return base.AddAsync(entity, cancellationToken);
return CreateGenericDbContext(entity).AddAsync(entity, cancellationToken);
}
public override void AddRange(params object[] entities)
{
if (isExecutor)
{
base.AddRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.AddRange(group.Select(o => o.Entity));
}
}
public override void AddRange(IEnumerable<object> entities)
{
if (isExecutor)
{
base.AddRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.AddRange(group.Select(o => o.Entity));
}
}
public override async Task AddRangeAsync(params object[] entities)
{
if (isExecutor)
{
await base.AddRangeAsync(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
await group.Key.AddRangeAsync(group.Select(o => o.Entity));
}
}
public override async Task AddRangeAsync(IEnumerable<object> entities, CancellationToken cancellationToken = new CancellationToken())
{
if (isExecutor)
{
await base.AddRangeAsync(entities, cancellationToken);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
await group.Key.AddRangeAsync(group.Select(o => o.Entity));
}
}
public override EntityEntry<TEntity> Attach<TEntity>(TEntity entity)
{
if (isExecutor)
return base.Attach(entity);
return CreateGenericDbContext(entity).Attach(entity);
}
public override EntityEntry Attach(object entity)
{
if (isExecutor)
return base.Attach(entity);
return CreateGenericDbContext(entity).Attach(entity);
}
public override void AttachRange(params object[] entities)
{
if (isExecutor)
{
base.AttachRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.AttachRange(group.Select(o => o.Entity));
}
}
public override void AttachRange(IEnumerable<object> entities)
{
if (isExecutor)
{
base.AttachRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.AttachRange(group.Select(o => o.Entity));
}
}
//public override DatabaseFacade Database => _dbContextCaches.Any()
// ? _dbContextCaches.First().Value.Database
// : GetDbContext(true, string.Empty).Database;
public override EntityEntry<TEntity> Entry<TEntity>(TEntity entity)
{
if (isExecutor)
return base.Entry(entity);
return CreateGenericDbContext(entity).Entry(entity);
}
public override EntityEntry Entry(object entity)
{
if (isExecutor)
return base.Entry(entity);
return CreateGenericDbContext(entity).Entry(entity);
}
public override EntityEntry<TEntity> Update<TEntity>(TEntity entity)
{
if (isExecutor)
return base.Update(entity);
return CreateGenericDbContext(entity).Update(entity);
}
public override EntityEntry Update(object entity)
{
if (isExecutor)
return base.Update(entity);
return CreateGenericDbContext(entity).Update(entity);
}
public override void UpdateRange(params object[] entities)
{
if (isExecutor)
{
base.UpdateRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.UpdateRange(group.Select(o => o.Entity));
}
}
public override void UpdateRange(IEnumerable<object> entities)
{
if (isExecutor)
{
base.UpdateRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.UpdateRange(group.Select(o => o.Entity));
}
}
public override EntityEntry<TEntity> Remove<TEntity>(TEntity entity)
{
if (isExecutor)
return base.Remove(entity);
return CreateGenericDbContext(entity).Remove(entity);
}
public override EntityEntry Remove(object entity)
{
if (isExecutor)
return base.Remove(entity);
return CreateGenericDbContext(entity).Remove(entity);
}
public override void RemoveRange(params object[] entities)
{
if (isExecutor)
{
base.RemoveRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.RemoveRange(group.Select(o => o.Entity));
}
}
public override void RemoveRange(IEnumerable<object> entities)
{
if (isExecutor)
{
base.RemoveRange(entities);
return;
}
var groups = entities.Select(o =>
{
var dbContext = CreateGenericDbContext(o);
return new
{
DbContext = dbContext,
Entity = o
};
}).GroupBy(g => g.DbContext);
foreach (var group in groups)
{
group.Key.RemoveRange(group.Select(o => o.Entity));
}
}
public override int SaveChanges()
{
if (isExecutor) return base.SaveChanges();
return this.SaveChanges(true);
}
public override int SaveChanges(bool acceptAllChangesOnSuccess)
{
if (isExecutor)
return base.SaveChanges(acceptAllChangesOnSuccess);
//ApplyShardingConcepts();
int i = 0;
//如果是内部开的事务就内部自己消化
if (Database.CurrentTransaction == null && _shardingDbContextExecutor.IsMultiDbContext)
{
using (var tran = Database.BeginTransaction())
{
i = _shardingDbContextExecutor.SaveChanges(acceptAllChangesOnSuccess);
tran.Commit();
}
}
else
{
i = _shardingDbContextExecutor.SaveChanges(acceptAllChangesOnSuccess);
}
return i;
}
public override Task<int> SaveChangesAsync(CancellationToken cancellationToken = new CancellationToken())
{
if (isExecutor)
return base.SaveChangesAsync(cancellationToken);
return this.SaveChangesAsync(true, cancellationToken);
}
public override async Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = new CancellationToken())
{
if (isExecutor)
return await base.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
//ApplyShardingConcepts();
int i = 0;
//如果是内部开的事务就内部自己消化
if (Database.CurrentTransaction == null && _shardingDbContextExecutor.IsMultiDbContext)
{
using (var tran = await Database.BeginTransactionAsync(cancellationToken))
{
i = await _shardingDbContextExecutor.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
await tran.CommitAsync(cancellationToken);
}
}
else
{
i = await _shardingDbContextExecutor.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
}
return i;
}
public override void Dispose()
{
if (isExecutor)
{
base.Dispose();
}
else
{
_shardingDbContextExecutor.Dispose();
base.Dispose();
}
}
public override async ValueTask DisposeAsync()
{
if (isExecutor)
{
await base.DisposeAsync();
}
else
{
await _shardingDbContextExecutor.DisposeAsync();
await base.DisposeAsync();
}
}
#endregion
public IRouteTail RouteTail { get; set; }
public DbSet<TestModel> TestModels { get; set; }
public DbSet<Order> Orders { get; set; }
public DbSet<Student> Students { get; set; }
public DbSet<GuidShardingTable> GuidShardingTables { get; set; }
public DbSet<TestModelKey> TestModelKeys { get; set; }
protected override void OnModelCreating(ModelBuilder builder)
{
base.OnModelCreating(builder);
builder.Entity<TestModelKey>().HasKey(t => new { t.Id, t.Key });
builder.Entity<TestModelKey>().Property(o => o.Key).IsRequired().HasMaxLength(36);
}
}
}

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samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/ApplicationDbContext.cs Normal file
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using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using WebApplication1.Data.Models;
namespace WebApplication1.Data;
public class ApplicationDbContext : IdentityDbContext
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
{
}
public DbSet<TestModel> TestModels { get; set; }
}

38
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/DbInitializationProvider.cs Normal file
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using System;
using System.Linq;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
namespace WebApplication1.Data
{
/// <summary>
/// 数据库初始化程序
/// </summary>
public class DbInitializationProvider
{
/// <summary>
/// 初始化
/// </summary>
/// <param name="services">IServiceProvider</param>
public static void Initialize<T>(IServiceProvider services) where T : DbContext
{
var context = services.GetRequiredService<T>();
if (context == null) throw new Exception("容器中未能找到 dbcontext 服务");
// 确保上下文数据库存在。 如果存在，则不采取任何措施。 如果它不存在，那么将创建数据库及其所有架构。
// 如果数据库存在，则不做任何努力以确保它与此上下文的模型兼容。
// 请注意，此API不使用迁移来创建数据库。 此外，创建的数据库以后无法使用迁移进行更新。 如果您以关系数据库为目标并使用迁移，则可以使用DbContext.Database.Migrate（）方法来确保已创建数据库并应用了所有迁移。
// context.Database.EnsureCreated();
//判断是否有待迁移
if (context.Database.GetPendingMigrations().Any())
{
//执行迁移
context.Database.Migrate();
}
}
}
}

45
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Extensions/ServicesExtensions.cs Normal file
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using Microsoft.Extensions.DependencyInjection;
using ShardingCore.Helpers;
using System;
using System.Collections.Generic;
using System.Linq;
using WebApplication1.Data;
using WebApplication1.Data.Helpers;
using WebApplication1.Data.Sharding;
namespace WebApplication1.Data.Extensions
{
public static class ServicesExtensions
{
/// <summary>
/// 初始化动态数据库
/// </summary>
/// <param name="serviceProvider"></param>
public static IServiceProvider InitialDynamicVirtualDataSource(this IServiceProvider serviceProvider)
{
var dblist = JsonFileHelper.Read<List<string>>(AppContext.BaseDirectory, TestModelVirtualDataSourceRoute.ConfigFileName) ?? new List<string>();
foreach (var key in dblist)
{
DynamicShardingHelper.DynamicAppendDataSource<AbstaractShardingDbContext>("c1", key, $"server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo_{key};");
}
return serviceProvider;
//using (var scope = serviceProvider.CreateScope())
//{
// var db = scope.ServiceProvider.GetRequiredService<AbstaractShardingDbContext>();
// db.Database.EnsureCreated();
// var dbKeys = db.TestModelKeys.ToList();
// if (dbKeys.Any())
// {
// foreach (var item in dbKeys)
// {
// DynamicShardingHelper.DynamicAppendDataSource<AbstaractShardingDbContext>("c1", item.Key, $"server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo_{item.Key};");
// }
// }
//}
}
}
}

52
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Helpers/JsonFileHelper.cs Normal file
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using System.IO;
using System.Text;
using System.Text.Json;
namespace WebApplication1.Data.Helpers
{
public class JsonFileHelper
{
/// <summary>
/// 序列化选项
/// </summary>
private static readonly JsonSerializerOptions serializerOptions = new() { WriteIndented = true }; // 序列化选项
/// <summary>
/// 将数据存为Json字符串文件
/// </summary>
/// <param name="path">路径</param>
/// <param name="fileName">文件名</param>
/// <param name="data">数据</param>
public static void Save<T>(string path, string fileName, T data)
{
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
var fullPath = Path.Combine(path, fileName.EndsWith(".json") ? fileName : $"{fileName}.json");
string json = JsonSerializer.Serialize(data ?? default, serializerOptions);
File.WriteAllText(fullPath, json, Encoding.UTF8);
}
/// <summary>
/// 读取Json文件，返回指定类型的数据
/// </summary>
/// <typeparam name="T">返回的数据类型</typeparam>
/// <param name="path">路径</param>
/// <param name="fileName">文件名</param>
/// <returns>返回的数据</returns>
public static T Read<T>(string path, string fileName)
{
var fullPath = Path.Combine(path, fileName.EndsWith(".json") ? fileName : $"{fileName}.json");
T data = default;
if (File.Exists(fullPath))
{
var jsonString = File.ReadAllText(fullPath, Encoding.UTF8);
if (!string.IsNullOrEmpty(jsonString)) data = JsonSerializer.Deserialize<T>(jsonString);
}
return data;
}
}
}

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samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Models/GuidShardingTable.cs Normal file
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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace WebApplication1.Data.Models
{
public class GuidShardingTable
{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public Guid Id { get; set; } = Guid.NewGuid();
public string Name { get; set; } = "";
}
}

13
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Models/Order.cs Normal file
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using System;
namespace WebApplication1.Data.Models
{
public class Order
{
public Guid Id { get; set; } = Guid.NewGuid();
public string Name { get; set; } = "";
}
}

17
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Models/Student.cs Normal file
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using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace WebApplication1.Data.Models
{
public class Student
{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
public string Name { get; set; } = "";
}
}

21
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Models/TestModel.cs Normal file
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using System;
namespace WebApplication1.Data.Models
{
public class TestModel
{
public Guid Id { get; set; } = Guid.NewGuid();
public string Content { get; set; } = "";
public string Description { get; set; } = "";
public DateTime CreationTime { get; set; } = DateTime.Now;
public string TestNewField { get; set; } = "";
public string AfterShardingDb { get; set; } = "";
}
}

22
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Models/TestModelKey.cs Normal file
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using System;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace WebApplication1.Data.Models
{
public class TestModelKey
{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public Guid Id { get; set; } = Guid.NewGuid();
[Display(Name = "关键Key")]
public string Key { get; set; } = "";
[Display(Name = "创建日期")]
public DateTime CreationDate { get; set; } = DateTime.Now;
}
}

20
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Sharding/GuidShardingTableVirtualTableRoute.cs Normal file
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using ShardingCore.Core.EntityMetadatas;
using ShardingCore.VirtualRoutes.Mods;
using WebApplication1.Data.Models;
namespace WebApplication1.Data.Sharding
{
public class GuidShardingTableVirtualTableRoute : AbstractSimpleShardingModKeyStringVirtualTableRoute<GuidShardingTable>
{
public GuidShardingTableVirtualTableRoute() : base(3, 6, '0')
{
}
public override void Configure(EntityMetadataTableBuilder<GuidShardingTable> builder)
{
builder.ShardingProperty(o => o.Id);
}
}
}

20
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Sharding/StudentVirtualTableRoute.cs Normal file
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using ShardingCore.Core.EntityMetadatas;
using ShardingCore.VirtualRoutes.Mods;
using WebApplication1.Data.Models;
namespace WebApplication1.Data.Sharding
{
public class StudentVirtualTableRoute : AbstractSimpleShardingModKeyStringVirtualTableRoute<Student>
{
public StudentVirtualTableRoute() : base(3, 6, '0')
{
}
public override void Configure(EntityMetadataTableBuilder<Student> builder)
{
builder.ShardingProperty(o => o.Name);
}
}
}

66
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Sharding/TestModelVirtualDataSourceRoute.cs Normal file
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using ShardingCore.Core.EntityMetadatas;
using ShardingCore.Core.VirtualRoutes;
using ShardingCore.Core.VirtualRoutes.DataSourceRoutes.Abstractions;
using System;
using System.Collections.Generic;
using System.Linq;
using WebApplication1.Data.Helpers;
using WebApplication1.Data.Models;
namespace WebApplication1.Data.Sharding
{
public class TestModelVirtualDataSourceRoute : AbstractShardingOperatorVirtualDataSourceRoute<TestModel, string>
{
/// <summary>
/// 配置文件名称
/// </summary>
public const string ConfigFileName = "muitDbConfig.json";
private List<string> _dataSources = new() { };
protected string ConvertToShardingKey(object shardingKey)
{
return shardingKey?.ToString() ?? string.Empty;
}
//我们设置区域就是数据库
public override string ShardingKeyToDataSourceName(object shardingKey)
{
return ConvertToShardingKey(shardingKey);
}
public override List<string> GetAllDataSourceNames()
{
_dataSources = JsonFileHelper.Read<List<string>>(AppContext.BaseDirectory, ConfigFileName);
return _dataSources;
}
public override bool AddDataSourceName(string dataSourceName)
{
if (_dataSources.Any(o => o == dataSourceName)) return false;
_dataSources.Add(dataSourceName);
return true;
}
public override Func<string, bool> GetRouteToFilter(string shardingKey, ShardingOperatorEnum shardingOperator)
{
var t = ShardingKeyToDataSourceName(shardingKey);
switch (shardingOperator)
{
case ShardingOperatorEnum.Equal: return tail => tail == t;
default:
{
return tail => true;
}
}
}
public override void Configure(EntityMetadataDataSourceBuilder<TestModel> builder)
{
builder.ShardingProperty(o => o.TestNewField);
}
}
}

39
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/Sharding/TestModelVirtualTableRoute.cs Normal file
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using ShardingCore.Core.EntityMetadatas;
using ShardingCore.VirtualRoutes.Months;
using System;
using WebApplication1.Data.Models;
namespace WebApplication1.Data.Sharding
{
public class TestModelVirtualTableRoute : AbstractSimpleShardingMonthKeyDateTimeVirtualTableRoute<TestModel>
{
/// <summary>
/// 固定值不要使用日期时间。现在因为如果如果应用程序重新启动这个值改变的地方
/// </summary>
/// <returns></returns>
public override DateTime GetBeginTime()
{
return new DateTime(2022, 1, 1);
}
/// <summary>
/// 配置分片属性
/// </summary>
/// <param name="builder"></param>
public override void Configure(EntityMetadataTableBuilder<TestModel> builder)
{
builder.ShardingProperty(o => o.CreationTime);
//builder.AutoCreateTable(null); // 可选,表示是否需要在启动的时候建表:null表示根据全局配置,true:表示需要,false:表示不需要,默认null
//builder.TableSeparator("_"); // 可选,表示分表后缀和虚拟表名之间的分隔连接符,默认_
}
/// <summary>
/// 启用自动创建表的工作
/// </summary>
/// <returns></returns>
public override bool AutoCreateTableByTime()
{
return true;
}
}
}

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samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/ShardingMigrationsSqlGenerator.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Migrations.Operations;
using Npgsql.EntityFrameworkCore.PostgreSQL.Infrastructure.Internal;
using Npgsql.EntityFrameworkCore.PostgreSQL.Migrations;
using ShardingCore.Helpers;
using ShardingCore.Sharding.Abstractions;
using System.Linq;
namespace WebApplication1.Data
{
/// <summary>
/// https://github.com/Coldairarrow/EFCore.Sharding/blob/master/src/EFCore.Sharding.SqlServer/ShardingSqlServerMigrationsSqlGenerator.cs
/// </summary>
public class ShardingMigrationsSqlGenerator<TShardingDbContext> : NpgsqlMigrationsSqlGenerator where TShardingDbContext : DbContext, IShardingDbContext
{
public ShardingMigrationsSqlGenerator(MigrationsSqlGeneratorDependencies dependencies, INpgsqlSingletonOptions npgsqlSingletonOptions) : base(dependencies, npgsqlSingletonOptions)
{
}
protected override void Generate(MigrationOperation operation, IModel model, MigrationCommandListBuilder builder)
{
var oldCmds = builder.GetCommandList().ToList();
base.Generate(operation, model, builder);
var newCmds = builder.GetCommandList().ToList();
var addCmds = newCmds.Where(x => !oldCmds.Contains(x)).ToList();
MigrationHelper.Generate<TShardingDbContext>(operation, builder, Dependencies.SqlGenerationHelper, addCmds);
}
}
}

13
samples/Samples.DynamicDb.Npgsql/WebApplication1.Data/WebApplication1.Data.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="6.0.6" />
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.5" />
<PackageReference Include="ShardingCore" Version="6.5.0.9" />
</ItemGroup>
</Project>

297
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/Migrations/20220610041036_initialCreate.Designer.cs generated Normal file
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// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.NoSharding.Migrations
{
[DbContext(typeof(ApplicationDbContext))]
[Migration("20220610041036_initialCreate")]
partial class initialCreate
{
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderKey")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Name")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<string>("Description")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

236
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/Migrations/20220610041036_initialCreate.cs Normal file
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using System;
using Microsoft.EntityFrameworkCore.Migrations;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
#nullable disable
namespace WebApplication1.Migrations.NoSharding.Migrations
{
public partial class initialCreate : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "AspNetRoles",
columns: table => new
{
Id = table.Column<string>(type: "text", nullable: false),
Name = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
ConcurrencyStamp = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetRoles", x => x.Id);
});
migrationBuilder.CreateTable(
name: "AspNetUsers",
columns: table => new
{
Id = table.Column<string>(type: "text", nullable: false),
UserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedUserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
Email = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedEmail = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
EmailConfirmed = table.Column<bool>(type: "boolean", nullable: false),
PasswordHash = table.Column<string>(type: "text", nullable: true),
SecurityStamp = table.Column<string>(type: "text", nullable: true),
ConcurrencyStamp = table.Column<string>(type: "text", nullable: true),
PhoneNumber = table.Column<string>(type: "text", nullable: true),
PhoneNumberConfirmed = table.Column<bool>(type: "boolean", nullable: false),
TwoFactorEnabled = table.Column<bool>(type: "boolean", nullable: false),
LockoutEnd = table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: true),
LockoutEnabled = table.Column<bool>(type: "boolean", nullable: false),
AccessFailedCount = table.Column<int>(type: "integer", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUsers", x => x.Id);
});
migrationBuilder.CreateTable(
name: "TestModels",
columns: table => new
{
Id = table.Column<Guid>(type: "uuid", nullable: false),
Content = table.Column<string>(type: "text", nullable: true),
Description = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_TestModels", x => x.Id);
});
migrationBuilder.CreateTable(
name: "AspNetRoleClaims",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
RoleId = table.Column<string>(type: "text", nullable: false),
ClaimType = table.Column<string>(type: "text", nullable: true),
ClaimValue = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetRoleClaims", x => x.Id);
table.ForeignKey(
name: "FK_AspNetRoleClaims_AspNetRoles_RoleId",
column: x => x.RoleId,
principalTable: "AspNetRoles",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserClaims",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
UserId = table.Column<string>(type: "text", nullable: false),
ClaimType = table.Column<string>(type: "text", nullable: true),
ClaimValue = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserClaims", x => x.Id);
table.ForeignKey(
name: "FK_AspNetUserClaims_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserLogins",
columns: table => new
{
LoginProvider = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
ProviderKey = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
ProviderDisplayName = table.Column<string>(type: "text", nullable: true),
UserId = table.Column<string>(type: "text", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserLogins", x => new { x.LoginProvider, x.ProviderKey });
table.ForeignKey(
name: "FK_AspNetUserLogins_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserRoles",
columns: table => new
{
UserId = table.Column<string>(type: "text", nullable: false),
RoleId = table.Column<string>(type: "text", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserRoles", x => new { x.UserId, x.RoleId });
table.ForeignKey(
name: "FK_AspNetUserRoles_AspNetRoles_RoleId",
column: x => x.RoleId,
principalTable: "AspNetRoles",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
table.ForeignKey(
name: "FK_AspNetUserRoles_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserTokens",
columns: table => new
{
UserId = table.Column<string>(type: "text", nullable: false),
LoginProvider = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
Name = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
Value = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserTokens", x => new { x.UserId, x.LoginProvider, x.Name });
table.ForeignKey(
name: "FK_AspNetUserTokens_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateIndex(
name: "IX_AspNetRoleClaims_RoleId",
table: "AspNetRoleClaims",
column: "RoleId");
migrationBuilder.CreateIndex(
name: "RoleNameIndex",
table: "AspNetRoles",
column: "NormalizedName",
unique: true);
migrationBuilder.CreateIndex(
name: "IX_AspNetUserClaims_UserId",
table: "AspNetUserClaims",
column: "UserId");
migrationBuilder.CreateIndex(
name: "IX_AspNetUserLogins_UserId",
table: "AspNetUserLogins",
column: "UserId");
migrationBuilder.CreateIndex(
name: "IX_AspNetUserRoles_RoleId",
table: "AspNetUserRoles",
column: "RoleId");
migrationBuilder.CreateIndex(
name: "EmailIndex",
table: "AspNetUsers",
column: "NormalizedEmail");
migrationBuilder.CreateIndex(
name: "UserNameIndex",
table: "AspNetUsers",
column: "NormalizedUserName",
unique: true);
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "AspNetRoleClaims");
migrationBuilder.DropTable(
name: "AspNetUserClaims");
migrationBuilder.DropTable(
name: "AspNetUserLogins");
migrationBuilder.DropTable(
name: "AspNetUserRoles");
migrationBuilder.DropTable(
name: "AspNetUserTokens");
migrationBuilder.DropTable(
name: "TestModels");
migrationBuilder.DropTable(
name: "AspNetRoles");
migrationBuilder.DropTable(
name: "AspNetUsers");
}
}
}

300
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/Migrations/20220610090653_TestModel_Add_CreationTime.Designer.cs generated Normal file
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@ -0,0 +1,300 @@
// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.NoSharding.Migrations
{
[DbContext(typeof(ApplicationDbContext))]
[Migration("20220610090653_TestModel_Add_CreationTime")]
partial class TestModel_Add_CreationTime
{
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderKey")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Name")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp without time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

27
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/Migrations/20220610090653_TestModel_Add_CreationTime.cs Normal file
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@ -0,0 +1,27 @@
using System;
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace WebApplication1.Migrations.NoSharding.Migrations
{
public partial class TestModel_Add_CreationTime : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.AddColumn<DateTime>(
name: "CreationTime",
table: "TestModels",
type: "timestamp without time zone",
nullable: false,
defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified));
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropColumn(
name: "CreationTime",
table: "TestModels");
}
}
}

298
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/Migrations/ApplicationDbContextModelSnapshot.cs Normal file
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@ -0,0 +1,298 @@
// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.NoSharding.Migrations
{
[DbContext(typeof(ApplicationDbContext))]
partial class ApplicationDbContextModelSnapshot : ModelSnapshot
{
protected override void BuildModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderKey")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Name")
.HasMaxLength(128)
.HasColumnType("character varying(128)");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp without time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

17
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.NoSharding/WebApplication1.Migrations.NoSharding.csproj Normal file
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@ -0,0 +1,17 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.5" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\WebApplication1.Data\WebApplication1.Data.csproj" />
</ItemGroup>
</Project>

342
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220615110332_InitialCreate.Designer.cs generated Normal file
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@ -0,0 +1,342 @@
// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
[DbContext(typeof(AbstaractShardingDbContext))]
[Migration("20220615110332_InitialCreate")]
partial class InitialCreate
{
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("ProviderKey")
.HasColumnType("text");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("Name")
.HasColumnType("text");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.Models.GuidShardingTable", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("GuidShardingTables");
});
modelBuilder.Entity("WebApplication1.Data.Models.Order", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Orders");
});
modelBuilder.Entity("WebApplication1.Data.Models.Student", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Students");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.Property<string>("TestNewField")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

284
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220615110332_InitialCreate.cs Normal file
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@ -0,0 +1,284 @@
using System;
using Microsoft.EntityFrameworkCore.Migrations;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
public partial class InitialCreate : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "AspNetRoles",
columns: table => new
{
Id = table.Column<string>(type: "text", nullable: false),
Name = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
ConcurrencyStamp = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetRoles", x => x.Id);
});
migrationBuilder.CreateTable(
name: "AspNetUsers",
columns: table => new
{
Id = table.Column<string>(type: "text", nullable: false),
UserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedUserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
Email = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
NormalizedEmail = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
EmailConfirmed = table.Column<bool>(type: "boolean", nullable: false),
PasswordHash = table.Column<string>(type: "text", nullable: true),
SecurityStamp = table.Column<string>(type: "text", nullable: true),
ConcurrencyStamp = table.Column<string>(type: "text", nullable: true),
PhoneNumber = table.Column<string>(type: "text", nullable: true),
PhoneNumberConfirmed = table.Column<bool>(type: "boolean", nullable: false),
TwoFactorEnabled = table.Column<bool>(type: "boolean", nullable: false),
LockoutEnd = table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: true),
LockoutEnabled = table.Column<bool>(type: "boolean", nullable: false),
AccessFailedCount = table.Column<int>(type: "integer", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUsers", x => x.Id);
});
migrationBuilder.CreateTable(
name: "GuidShardingTables",
columns: table => new
{
Id = table.Column<Guid>(type: "uuid", nullable: false),
Name = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_GuidShardingTables", x => x.Id);
});
migrationBuilder.CreateTable(
name: "Orders",
columns: table => new
{
Id = table.Column<Guid>(type: "uuid", nullable: false),
Name = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_Orders", x => x.Id);
});
migrationBuilder.CreateTable(
name: "Students",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
Name = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_Students", x => x.Id);
});
migrationBuilder.CreateTable(
name: "TestModels",
columns: table => new
{
Id = table.Column<Guid>(type: "uuid", nullable: false),
Content = table.Column<string>(type: "text", nullable: true),
Description = table.Column<string>(type: "text", nullable: true),
CreationTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
TestNewField = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_TestModels", x => x.Id);
});
migrationBuilder.CreateTable(
name: "AspNetRoleClaims",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
RoleId = table.Column<string>(type: "text", nullable: false),
ClaimType = table.Column<string>(type: "text", nullable: true),
ClaimValue = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetRoleClaims", x => x.Id);
table.ForeignKey(
name: "FK_AspNetRoleClaims_AspNetRoles_RoleId",
column: x => x.RoleId,
principalTable: "AspNetRoles",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserClaims",
columns: table => new
{
Id = table.Column<int>(type: "integer", nullable: false)
.Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
UserId = table.Column<string>(type: "text", nullable: false),
ClaimType = table.Column<string>(type: "text", nullable: true),
ClaimValue = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserClaims", x => x.Id);
table.ForeignKey(
name: "FK_AspNetUserClaims_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserLogins",
columns: table => new
{
LoginProvider = table.Column<string>(type: "text", nullable: false),
ProviderKey = table.Column<string>(type: "text", nullable: false),
ProviderDisplayName = table.Column<string>(type: "text", nullable: true),
UserId = table.Column<string>(type: "text", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserLogins", x => new { x.LoginProvider, x.ProviderKey });
table.ForeignKey(
name: "FK_AspNetUserLogins_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserRoles",
columns: table => new
{
UserId = table.Column<string>(type: "text", nullable: false),
RoleId = table.Column<string>(type: "text", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserRoles", x => new { x.UserId, x.RoleId });
table.ForeignKey(
name: "FK_AspNetUserRoles_AspNetRoles_RoleId",
column: x => x.RoleId,
principalTable: "AspNetRoles",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
table.ForeignKey(
name: "FK_AspNetUserRoles_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "AspNetUserTokens",
columns: table => new
{
UserId = table.Column<string>(type: "text", nullable: false),
LoginProvider = table.Column<string>(type: "text", nullable: false),
Name = table.Column<string>(type: "text", nullable: false),
Value = table.Column<string>(type: "text", nullable: true)
},
constraints: table =>
{
table.PrimaryKey("PK_AspNetUserTokens", x => new { x.UserId, x.LoginProvider, x.Name });
table.ForeignKey(
name: "FK_AspNetUserTokens_AspNetUsers_UserId",
column: x => x.UserId,
principalTable: "AspNetUsers",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateIndex(
name: "IX_AspNetRoleClaims_RoleId",
table: "AspNetRoleClaims",
column: "RoleId");
migrationBuilder.CreateIndex(
name: "RoleNameIndex",
table: "AspNetRoles",
column: "NormalizedName",
unique: true);
migrationBuilder.CreateIndex(
name: "IX_AspNetUserClaims_UserId",
table: "AspNetUserClaims",
column: "UserId");
migrationBuilder.CreateIndex(
name: "IX_AspNetUserLogins_UserId",
table: "AspNetUserLogins",
column: "UserId");
migrationBuilder.CreateIndex(
name: "IX_AspNetUserRoles_RoleId",
table: "AspNetUserRoles",
column: "RoleId");
migrationBuilder.CreateIndex(
name: "EmailIndex",
table: "AspNetUsers",
column: "NormalizedEmail");
migrationBuilder.CreateIndex(
name: "UserNameIndex",
table: "AspNetUsers",
column: "NormalizedUserName",
unique: true);
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "AspNetRoleClaims");
migrationBuilder.DropTable(
name: "AspNetUserClaims");
migrationBuilder.DropTable(
name: "AspNetUserLogins");
migrationBuilder.DropTable(
name: "AspNetUserRoles");
migrationBuilder.DropTable(
name: "AspNetUserTokens");
migrationBuilder.DropTable(
name: "GuidShardingTables");
migrationBuilder.DropTable(
name: "Orders");
migrationBuilder.DropTable(
name: "Students");
migrationBuilder.DropTable(
name: "TestModels");
migrationBuilder.DropTable(
name: "AspNetRoles");
migrationBuilder.DropTable(
name: "AspNetUsers");
}
}
}

345
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220615152140_TestModel_Add_AfterShardingDb.Designer.cs generated Normal file
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@ -0,0 +1,345 @@
// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
[DbContext(typeof(AbstaractShardingDbContext))]
[Migration("20220615152140_TestModel_Add_AfterShardingDb")]
partial class TestModel_Add_AfterShardingDb
{
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("ProviderKey")
.HasColumnType("text");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("Name")
.HasColumnType("text");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.Models.GuidShardingTable", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("GuidShardingTables");
});
modelBuilder.Entity("WebApplication1.Data.Models.Order", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Orders");
});
modelBuilder.Entity("WebApplication1.Data.Models.Student", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Students");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("AfterShardingDb")
.HasColumnType("text");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.Property<string>("TestNewField")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

25
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220615152140_TestModel_Add_AfterShardingDb.cs Normal file
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@ -0,0 +1,25 @@
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
public partial class TestModel_Add_AfterShardingDb : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.AddColumn<string>(
name: "AfterShardingDb",
table: "TestModels",
type: "text",
nullable: true);
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropColumn(
name: "AfterShardingDb",
table: "TestModels");
}
}
}

362
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220616075026_TestModelKey_Create.Designer.cs generated Normal file
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@ -0,0 +1,362 @@
// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
[DbContext(typeof(AbstaractShardingDbContext))]
[Migration("20220616075026_TestModelKey_Create")]
partial class TestModelKey_Create
{
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("ProviderKey")
.HasColumnType("text");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("Name")
.HasColumnType("text");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.Models.GuidShardingTable", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("GuidShardingTables");
});
modelBuilder.Entity("WebApplication1.Data.Models.Order", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Orders");
});
modelBuilder.Entity("WebApplication1.Data.Models.Student", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Students");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("AfterShardingDb")
.HasColumnType("text");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.Property<string>("TestNewField")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModelKey", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Key")
.HasMaxLength(36)
.HasColumnType("character varying(36)");
b.Property<DateTime>("CreationDate")
.HasColumnType("timestamp with time zone");
b.HasKey("Id", "Key");
b.ToTable("TestModelKeys");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

32
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/20220616075026_TestModelKey_Create.cs Normal file
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using System;
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
public partial class TestModelKey_Create : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "TestModelKeys",
columns: table => new
{
Id = table.Column<Guid>(type: "uuid", nullable: false),
Key = table.Column<string>(type: "character varying(36)", maxLength: 36, nullable: false),
CreationDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_TestModelKeys", x => new { x.Id, x.Key });
});
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "TestModelKeys");
}
}
}

360
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/Migrations/AbstaractShardingDbContextModelSnapshot.cs Normal file
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// <auto-generated />
using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
using WebApplication1.Data;
#nullable disable
namespace WebApplication1.Migrations.Sharding.Migrations
{
[DbContext(typeof(AbstaractShardingDbContext))]
partial class AbstaractShardingDbContextModelSnapshot : ModelSnapshot
{
protected override void BuildModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "6.0.5")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Name")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedName")
.IsUnique()
.HasDatabaseName("RoleNameIndex");
b.ToTable("AspNetRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("RoleId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("RoleId");
b.ToTable("AspNetRoleClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
{
b.Property<string>("Id")
.HasColumnType("text");
b.Property<int>("AccessFailedCount")
.HasColumnType("integer");
b.Property<string>("ConcurrencyStamp")
.IsConcurrencyToken()
.HasColumnType("text");
b.Property<string>("Email")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<bool>("EmailConfirmed")
.HasColumnType("boolean");
b.Property<bool>("LockoutEnabled")
.HasColumnType("boolean");
b.Property<DateTimeOffset?>("LockoutEnd")
.HasColumnType("timestamp with time zone");
b.Property<string>("NormalizedEmail")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("NormalizedUserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.Property<string>("PasswordHash")
.HasColumnType("text");
b.Property<string>("PhoneNumber")
.HasColumnType("text");
b.Property<bool>("PhoneNumberConfirmed")
.HasColumnType("boolean");
b.Property<string>("SecurityStamp")
.HasColumnType("text");
b.Property<bool>("TwoFactorEnabled")
.HasColumnType("boolean");
b.Property<string>("UserName")
.HasMaxLength(256)
.HasColumnType("character varying(256)");
b.HasKey("Id");
b.HasIndex("NormalizedEmail")
.HasDatabaseName("EmailIndex");
b.HasIndex("NormalizedUserName")
.IsUnique()
.HasDatabaseName("UserNameIndex");
b.ToTable("AspNetUsers", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ClaimType")
.HasColumnType("text");
b.Property<string>("ClaimValue")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("Id");
b.HasIndex("UserId");
b.ToTable("AspNetUserClaims", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("ProviderKey")
.HasColumnType("text");
b.Property<string>("ProviderDisplayName")
.HasColumnType("text");
b.Property<string>("UserId")
.IsRequired()
.HasColumnType("text");
b.HasKey("LoginProvider", "ProviderKey");
b.HasIndex("UserId");
b.ToTable("AspNetUserLogins", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("RoleId")
.HasColumnType("text");
b.HasKey("UserId", "RoleId");
b.HasIndex("RoleId");
b.ToTable("AspNetUserRoles", (string)null);
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.Property<string>("UserId")
.HasColumnType("text");
b.Property<string>("LoginProvider")
.HasColumnType("text");
b.Property<string>("Name")
.HasColumnType("text");
b.Property<string>("Value")
.HasColumnType("text");
b.HasKey("UserId", "LoginProvider", "Name");
b.ToTable("AspNetUserTokens", (string)null);
});
modelBuilder.Entity("WebApplication1.Data.Models.GuidShardingTable", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("GuidShardingTables");
});
modelBuilder.Entity("WebApplication1.Data.Models.Order", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Orders");
});
modelBuilder.Entity("WebApplication1.Data.Models.Student", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Name")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("Students");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModel", b =>
{
b.Property<Guid>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("uuid");
b.Property<string>("AfterShardingDb")
.HasColumnType("text");
b.Property<string>("Content")
.HasColumnType("text");
b.Property<DateTime>("CreationTime")
.HasColumnType("timestamp with time zone");
b.Property<string>("Description")
.HasColumnType("text");
b.Property<string>("TestNewField")
.HasColumnType("text");
b.HasKey("Id");
b.ToTable("TestModels");
});
modelBuilder.Entity("WebApplication1.Data.Models.TestModelKey", b =>
{
b.Property<Guid>("Id")
.HasColumnType("uuid");
b.Property<string>("Key")
.HasMaxLength(36)
.HasColumnType("character varying(36)");
b.Property<DateTime>("CreationDate")
.HasColumnType("timestamp with time zone");
b.HasKey("Id", "Key");
b.ToTable("TestModelKeys");
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
.WithMany()
.HasForeignKey("RoleId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
{
b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
.WithMany()
.HasForeignKey("UserId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
});
#pragma warning restore 612, 618
}
}
}

18
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Sharding/WebApplication1.Migrations.Sharding.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.5" />
<PackageReference Include="ShardingCore" Version="6.5.0.9" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\WebApplication1.Data\WebApplication1.Data.csproj" />
</ItemGroup>
</Project>

6
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Tool/Program.cs Normal file
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// 解决 PostgreSQL 在.NET 6.0 使用 DateTime 类型抛出异常：timestamp with time zone
AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true); // 启用旧时间戳行为
AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true); // 禁用日期时间无限转换
// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");

80
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Tool/ShardingDesignTimeDbContextFactory.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.Extensions.DependencyInjection;
using ShardingCore;
using ShardingCore.Bootstrappers;
using ShardingCore.TableExists;
using WebApplication1.Data;
using WebApplication1.Data.Extensions;
using WebApplication1.Data.Sharding;
namespace WebApplication1.Migrations.Tool
{
public class ShardingDesignTimeDbContextFactory : IDesignTimeDbContextFactory<AbstaractShardingDbContext>
{
const string migrationsAssemblyName = "WebApplication1.Migrations.Sharding";
static ShardingDesignTimeDbContextFactory()
{
var services = new ServiceCollection();
services.AddShardingDbContext<AbstaractShardingDbContext>()
.AddEntityConfig(o =>
{
o.CreateDataBaseOnlyOnStart = true; // 启动时创建数据库
o.CreateShardingTableOnStart = false; // 如果您使用code-first建议选择false
o.EnsureCreatedWithOutShardingTable = false; // 如果您使用code-first建议修改为fsle
o.IgnoreCreateTableError = false; // 如果不忽略就会输出warning的日志
//添加分库路由
o.AddShardingDataSourceRoute<TestModelVirtualDataSourceRoute>();
//添加分表路由
o.AddShardingTableRoute<TestModelVirtualTableRoute>();
o.AddShardingTableRoute<StudentVirtualTableRoute>();
o.AddShardingTableRoute<GuidShardingTableVirtualTableRoute>();
})
.AddConfig(op =>
{
op.ConfigId = "c1";
// 添加这个对象的字符串创建dbcontext 优先级低 优先采用AddConfig下的
op.UseShardingQuery((conStr, builder) =>
{
builder.UseNpgsql(conStr, opt => opt.MigrationsAssembly(migrationsAssemblyName));
});
// 添加这个对象的链接创建dbcontext 优先级低 优先采用AddConfig下的
op.UseShardingTransaction((connection, builder) =>
{
builder.UseNpgsql(connection, opt => opt.MigrationsAssembly(migrationsAssemblyName));
});
op.ReplaceTableEnsureManager(sp => new SqlServerTableEnsureManager<AbstaractShardingDbContext>());
op.AddDefaultDataSource("ds0", "server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo;");
op.UseShellDbContextConfigure(builder =>
{
builder.ReplaceService<IMigrationsSqlGenerator, ShardingMigrationsSqlGenerator<AbstaractShardingDbContext>>()
//.ReplaceService<IMigrationsModelDiffer, RemoveForeignKeyMigrationsModelDiffer>();//如果需要移除外键可以添加这个
;
});
}).EnsureConfig();
services.AddLogging();
var buildServiceProvider = services.BuildServiceProvider();
ShardingContainer.SetServices(buildServiceProvider);
ShardingContainer.GetService<IShardingBootstrapper>().Start();
buildServiceProvider.InitialDynamicVirtualDataSource();
}
public AbstaractShardingDbContext CreateDbContext(string[] args)
{
return ShardingContainer.GetService<AbstaractShardingDbContext>();
}
}
}

14
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Tool/TestModelKey_Create.sql Normal file
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START TRANSACTION;
CREATE TABLE "TestModelKeys" (
"Id" uuid NOT NULL,
"Key" character varying(36) NOT NULL,
"CreationDate" timestamp with time zone NOT NULL,
CONSTRAINT "PK_TestModelKeys" PRIMARY KEY ("Id", "Key")
);
INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
VALUES ('20220616075026_TestModelKey_Create', '6.0.5');
COMMIT;

24
samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Tool/WebApplication1.Migrations.Tool.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<!--<Nullable>enable</Nullable>-->
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.6">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.5" />
<PackageReference Include="ShardingCore" Version="6.5.0.9" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\WebApplication1.Data\WebApplication1.Data.csproj" />
<ProjectReference Include="..\WebApplication1.Migrations.Sharding\WebApplication1.Migrations.Sharding.csproj" />
</ItemGroup>
</Project>

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samples/Samples.DynamicDb.Npgsql/WebApplication1.Migrations.Tool/migrations.sql Normal file
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CREATE TABLE IF NOT EXISTS "__EFMigrationsHistory" (
"MigrationId" character varying(150) NOT NULL,
"ProductVersion" character varying(32) NOT NULL,
CONSTRAINT "PK___EFMigrationsHistory" PRIMARY KEY ("MigrationId")
);
START TRANSACTION;
CREATE TABLE "AspNetRoles" (
"Id" text NOT NULL,
"Name" character varying(256) NULL,
"NormalizedName" character varying(256) NULL,
"ConcurrencyStamp" text NULL,
CONSTRAINT "PK_AspNetRoles" PRIMARY KEY ("Id")
);
CREATE TABLE "AspNetUsers" (
"Id" text NOT NULL,
"UserName" character varying(256) NULL,
"NormalizedUserName" character varying(256) NULL,
"Email" character varying(256) NULL,
"NormalizedEmail" character varying(256) NULL,
"EmailConfirmed" boolean NOT NULL,
"PasswordHash" text NULL,
"SecurityStamp" text NULL,
"ConcurrencyStamp" text NULL,
"PhoneNumber" text NULL,
"PhoneNumberConfirmed" boolean NOT NULL,
"TwoFactorEnabled" boolean NOT NULL,
"LockoutEnd" timestamp with time zone NULL,
"LockoutEnabled" boolean NOT NULL,
"AccessFailedCount" integer NOT NULL,
CONSTRAINT "PK_AspNetUsers" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_001" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_001" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_005" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_005" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_003" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_003" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_004" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_004" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_002" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_002" PRIMARY KEY ("Id")
);
CREATE TABLE "GuidShardingTables_000" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_GuidShardingTables_000" PRIMARY KEY ("Id")
);
CREATE TABLE "Orders" (
"Id" uuid NOT NULL,
"Name" text NULL,
CONSTRAINT "PK_Orders" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_001" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_001" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_002" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_002" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_005" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_005" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_004" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_004" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_000" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_000" PRIMARY KEY ("Id")
);
CREATE TABLE "Students_003" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"Name" text NULL,
CONSTRAINT "PK_Students_003" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202202" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202202" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202203" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202203" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202205" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202205" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202204" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202204" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202201" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202201" PRIMARY KEY ("Id")
);
CREATE TABLE "TestModels_202206" (
"Id" uuid NOT NULL,
"Content" text NULL,
"Description" text NULL,
"CreationTime" timestamp with time zone NOT NULL,
"TestNewField" text NULL,
CONSTRAINT "PK_TestModels_202206" PRIMARY KEY ("Id")
);
CREATE TABLE "AspNetRoleClaims" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"RoleId" text NOT NULL,
"ClaimType" text NULL,
"ClaimValue" text NULL,
CONSTRAINT "PK_AspNetRoleClaims" PRIMARY KEY ("Id"),
CONSTRAINT "FK_AspNetRoleClaims_AspNetRoles_RoleId" FOREIGN KEY ("RoleId") REFERENCES "AspNetRoles" ("Id") ON DELETE CASCADE
);
CREATE TABLE "AspNetUserClaims" (
"Id" integer GENERATED BY DEFAULT AS IDENTITY,
"UserId" text NOT NULL,
"ClaimType" text NULL,
"ClaimValue" text NULL,
CONSTRAINT "PK_AspNetUserClaims" PRIMARY KEY ("Id"),
CONSTRAINT "FK_AspNetUserClaims_AspNetUsers_UserId" FOREIGN KEY ("UserId") REFERENCES "AspNetUsers" ("Id") ON DELETE CASCADE
);
CREATE TABLE "AspNetUserLogins" (
"LoginProvider" text NOT NULL,
"ProviderKey" text NOT NULL,
"ProviderDisplayName" text NULL,
"UserId" text NOT NULL,
CONSTRAINT "PK_AspNetUserLogins" PRIMARY KEY ("LoginProvider", "ProviderKey"),
CONSTRAINT "FK_AspNetUserLogins_AspNetUsers_UserId" FOREIGN KEY ("UserId") REFERENCES "AspNetUsers" ("Id") ON DELETE CASCADE
);
CREATE TABLE "AspNetUserRoles" (
"UserId" text NOT NULL,
"RoleId" text NOT NULL,
CONSTRAINT "PK_AspNetUserRoles" PRIMARY KEY ("UserId", "RoleId"),
CONSTRAINT "FK_AspNetUserRoles_AspNetRoles_RoleId" FOREIGN KEY ("RoleId") REFERENCES "AspNetRoles" ("Id") ON DELETE CASCADE,
CONSTRAINT "FK_AspNetUserRoles_AspNetUsers_UserId" FOREIGN KEY ("UserId") REFERENCES "AspNetUsers" ("Id") ON DELETE CASCADE
);
CREATE TABLE "AspNetUserTokens" (
"UserId" text NOT NULL,
"LoginProvider" text NOT NULL,
"Name" text NOT NULL,
"Value" text NULL,
CONSTRAINT "PK_AspNetUserTokens" PRIMARY KEY ("UserId", "LoginProvider", "Name"),
CONSTRAINT "FK_AspNetUserTokens_AspNetUsers_UserId" FOREIGN KEY ("UserId") REFERENCES "AspNetUsers" ("Id") ON DELETE CASCADE
);
CREATE INDEX "IX_AspNetRoleClaims_RoleId" ON "AspNetRoleClaims" ("RoleId");
CREATE UNIQUE INDEX "RoleNameIndex" ON "AspNetRoles" ("NormalizedName");
CREATE INDEX "IX_AspNetUserClaims_UserId" ON "AspNetUserClaims" ("UserId");
CREATE INDEX "IX_AspNetUserLogins_UserId" ON "AspNetUserLogins" ("UserId");
CREATE INDEX "IX_AspNetUserRoles_RoleId" ON "AspNetUserRoles" ("RoleId");
CREATE INDEX "EmailIndex" ON "AspNetUsers" ("NormalizedEmail");
CREATE UNIQUE INDEX "UserNameIndex" ON "AspNetUsers" ("NormalizedUserName");
INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
VALUES ('20220615110332_InitialCreate', '6.0.5');
COMMIT;
START TRANSACTION;
ALTER TABLE "TestModels_202202" ADD "AfterShardingDb" text NULL;
ALTER TABLE "TestModels_202203" ADD "AfterShardingDb" text NULL;
ALTER TABLE "TestModels_202205" ADD "AfterShardingDb" text NULL;
ALTER TABLE "TestModels_202204" ADD "AfterShardingDb" text NULL;
ALTER TABLE "TestModels_202201" ADD "AfterShardingDb" text NULL;
ALTER TABLE "TestModels_202206" ADD "AfterShardingDb" text NULL;
INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")
VALUES ('20220615152140_TestModel_Add_AfterShardingDb', '6.0.5');
COMMIT;

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@{
Layout = "/Pages/Shared/_Layout.cshtml";
}

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@page
@model CreateDbKeyModel
@{
ViewData["title"] = "增加分库key";
}
<form asp-page="CreateDbKey" method="post">
<div class="mb-3 row">
<label asp-for="NewModel.Id" class="col-sm-2 col-form-label"></label>
<div class="col-sm-10">
<input asp-for="NewModel.Id" class="form-control" readonly />
</div>
</div>
<div class="mb-3 row">
<label asp-for="NewModel.Key" class="col-sm-2 col-form-label"></label>
<div class="col-sm-10">
<input asp-for="NewModel.Key" class="form-control" placeholder="分库key，必填" required />
</div>
</div>
<div class="mb-3 row">
<label asp-for="NewModel.CreationDate" class="col-sm-2 col-form-label"></label>
<div class="col-sm-10">
<input asp-for="NewModel.CreationDate" class="form-control" readonly />
</div>
</div>
<div class="row">
<div class="offset-sm-2">
<button type="submit" class="btn btn-primary">提交</button>
<a asp-page="DbKeyMan" class="btn btn-secondary">返回</a>
</div>
</div>
</form>

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using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using ShardingCore.Helpers;
using System;
using System.Collections.Generic;
using WebApplication1.Data;
using WebApplication1.Data.Helpers;
using WebApplication1.Data.Models;
using WebApplication1.Data.Sharding;
namespace WebApplication1.Pages
{
public class CreateDbKeyModel : PageModel
{
private readonly AbstaractShardingDbContext db;
[BindProperty]
public TestModelKey NewModel { get; set; }
public CreateDbKeyModel(AbstaractShardingDbContext db)
{
this.db = db;
}
public void OnGet()
{
NewModel = new TestModelKey();
}
public IActionResult OnPost()
{
NewModel.Id = Guid.NewGuid();
NewModel.CreationDate = DateTime.Now;
db.TestModelKeys.Add(NewModel);
db.SaveChanges();
// 读取并写入到配置
var dblist = JsonFileHelper.Read<List<string>>(AppContext.BaseDirectory, TestModelVirtualDataSourceRoute.ConfigFileName);
dblist.Add(NewModel.Key);
dblist.Sort();
JsonFileHelper.Save(AppContext.BaseDirectory, TestModelVirtualDataSourceRoute.ConfigFileName, dblist);
// 动态新增数据源
DynamicShardingHelper.DynamicAppendDataSource<AbstaractShardingDbContext>("c1", NewModel.Key, $"server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo_{NewModel.Key};");
return RedirectToPage("DbKeyMan");
}
}
}

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@page
@model DbKeyManModel
@{
ViewData["title"] = "分库key管理";
}
<a asp-page="CreateDbKey">新增分库key</a>
<table class="table">
<thead>
<tr>
<th scope="col" width="360">Id</th>
<th scope="col">Key</th>
<th scope="col" width="300">Date</th>
</tr>
</thead>
@if (Model.DbKeyList != null)
{
<tbody>
@foreach (var item in Model.DbKeyList)
{
<tr>
<td>@item.Id</td>
<th scope="row">@item.Key</th>
<td>@item.CreationDate.ToString("yyyy-MM-dd HH:mm:ss:fffffff")</td>
</tr>
}
</tbody>
}
</table>

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using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using WebApplication1.Data;
using WebApplication1.Data.Helpers;
using WebApplication1.Data.Models;
using WebApplication1.Data.Sharding;
namespace WebApplication1.Pages
{
public class DbKeyManModel : PageModel
{
private readonly AbstaractShardingDbContext db;
public IEnumerable<TestModelKey> DbKeyList { get; set; }
public DbKeyManModel(AbstaractShardingDbContext db)
{
this.db = db;
}
public void OnGet()
{
DbKeyList = db.TestModelKeys.AsNoTracking().OrderBy(m => m.CreationDate).ToList();
// дÈëµ½ÅäÖÃ
JsonFileHelper.Save(AppContext.BaseDirectory, TestModelVirtualDataSourceRoute.ConfigFileName, DbKeyList.Select(m => m.Key).ToList());
}
}
}

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@page
@model ErrorModel
@{
ViewData["Title"] = "Error";
}
<h1 class="text-danger">Error.</h1>
<h2 class="text-danger">An error occurred while processing your request.</h2>
@if (Model.ShowRequestId)
{
<p>
<strong>Request ID:</strong> <code>@Model.RequestId</code>
</p>
}
<h3>Development Mode</h3>
<p>
Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
</p>
<p>
<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
It can result in displaying sensitive information from exceptions to end users.
For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
and restarting the app.
</p>

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using System.Diagnostics;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
namespace WebApplication1.Pages;
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public class ErrorModel : PageModel
{
public string RequestId { get; set; }
public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
private readonly ILogger<ErrorModel> _logger;
public ErrorModel(ILogger<ErrorModel> logger)
{
_logger = logger;
}
public void OnGet()
{
RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
}
}

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@page
@model IndexModel
@{
ViewData["Title"] = "Home page";
}
<div class="text-center">
<h1 class="display-4">Welcome</h1>
<p>Learn about <a href="https://docs.microsoft.com/aspnet/core">building Web apps with ASP.NET Core</a>.</p>
</div>

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using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
namespace WebApplication1.Pages;
public class IndexModel : PageModel
{
private readonly ILogger<IndexModel> _logger;
public IndexModel(ILogger<IndexModel> logger)
{
_logger = logger;
}
public void OnGet()
{
}
}

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@page
@model ListDataModel
@{
ViewData["title"] = "数据列表";
}
@if (Model.StudentList != null)
{
@foreach (var item in Model.StudentList)
{
<div>@item.Id：@item.Name</div>
}
}
<hr />
@if (Model.TestModelList != null)
{
@foreach (var item in Model.TestModelList)
{
<div>@item.Id, @item.CreationTime.ToString("yyyy-MM-dd HH:mm:ss:fffffff")</div>
}
}

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using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using System.Collections.Generic;
using System.Linq;
using WebApplication1.Data;
using WebApplication1.Data.Models;
namespace WebApplication1.Pages
{
public class ListDataModel : PageModel
{
private readonly AbstaractShardingDbContext db;
public IEnumerable<Student>? StudentList { get; set; }
public IEnumerable<TestModel>? TestModelList { get; set; }
public ListDataModel(AbstaractShardingDbContext db)
{
this.db = db;
}
public void OnGet()
{
StudentList = db.Students.AsNoTracking().OrderBy(m => m.Id).Take(10).ToList();
//TestModelList = db.TestModels.AsNoTracking().OrderBy(m => m.CreationTime).Take(10).ToList();
}
}
}

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@page
@model PrivacyModel
@{
ViewData["Title"] = "Privacy Policy";
}
<h1>@ViewData["Title"]</h1>
<p>Use this page to detail your site's privacy policy.</p>

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samples/Samples.DynamicDb.Npgsql/WebApplication1/Pages/Privacy.cshtml.cs Normal file
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using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
namespace WebApplication1.Pages;
public class PrivacyModel : PageModel
{
private readonly ILogger<PrivacyModel> _logger;
public PrivacyModel(ILogger<PrivacyModel> logger)
{
_logger = logger;
}
public void OnGet()
{
}
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - WebApplication1</title>
<link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.3/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="~/css/site.css" />
</head>
<body>
<header>
<nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
<div class="container">
<a class="navbar-brand" asp-area="" asp-page="/Index">WebApplication1</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse d-sm-inline-flex flex-sm-row-reverse">
<partial name="_LoginPartial" />
<ul class="navbar-nav flex-grow-1">
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/Index">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/Privacy">Privacy</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/WriteData">写入数据</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/ListData">读取列表</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-page="/DbKeyMan">动态分库</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<div class="container">
<main role="main" class="pb-3">
@RenderBody()
</main>
</div>
<footer class="border-top footer text-muted">
<div class="container">
&copy; 2020 - WebApplication1 - <a asp-area="" asp-page="/Privacy">Privacy</a>
</div>
</footer>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.3/js/bootstrap.bundle.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
@RenderSection("Scripts", required: false)
</body>
</html>

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@inject SignInManager<IdentityUser> SignInManager
@inject UserManager<IdentityUser> UserManager
<ul class="navbar-nav">
@if (SignInManager.IsSignedIn(User))
{
<li class="nav-item">
<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">Hello @User.Identity.Name!</a>
</li>
<li class="nav-item">
<form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Page("/", new { area = "" })" method="post">
<button type="submit" class="nav-link btn btn-link text-dark">Logout</button>
</form>
</li>
}
else
{
<li class="nav-item">
<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register">Register</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login">Login</a>
</li>
}
</ul>

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<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>

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@page
@model WriteDataModel
@{
ViewData["title"] = "写入数据";
}
<h2>本次新增记录总数：@Model.Count</h2>

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using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using System;
using System.Linq;
using System.Threading.Tasks;
using WebApplication1.Data;
using WebApplication1.Data.Models;
namespace WebApplication1.Pages;
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public class WriteDataModel : PageModel
{
private readonly AbstaractShardingDbContext db;
public int Count { get; set; }
public WriteDataModel(AbstaractShardingDbContext db)
{
this.db = db;
}
public async Task OnGetAsync()
{
for (int i = 0; i < 30; i++)
{
//var dbFieldArr = new string[] { "11", "22" };
//db.TestModels.Add(new TestModel { Content = i.ToString(), Description = DateTime.Now.Millisecond.ToString(), TestNewField = dbFieldArr.OrderBy(m => Guid.NewGuid()).First() });
//db.Students.Add(new Student { Name = $"student_{i}" });
db.Add(new Student { Name = $"student_{i}" });
db.Add(new GuidShardingTable { Name = $"student_{i}" });
}
Count = await db.SaveChangesAsync();
}
}

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@using Microsoft.AspNetCore.Identity
@using WebApplication1
@using WebApplication1.Data
@namespace WebApplication1.Pages
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

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@{
Layout = "_Layout";
}

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using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using ShardingCore;
using ShardingCore.Bootstrappers;
using ShardingCore.TableExists;
using System;
using WebApplication1.Data;
using WebApplication1.Data.Extensions;
using WebApplication1.Data.Sharding;
// 解决 PostgreSQL 在.NET 6.0 使用 DateTime 类型抛出异常：timestamp with time zone
AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true); // 启用旧时间戳行为
AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true); // 禁用日期时间无限转换
var builder = WebApplication.CreateBuilder(args);
var services = builder.Services;
var configuration = builder.Configuration;
var npgConnectionString = configuration.GetConnectionString("DefaultConnection");
const string migrationsAssemblyName = "WebApplication1.Migrations.Sharding";
#region 注入 dbcontext
//services.AddDbContext<ApplicationDbContext>(options =>
//{
// options.UseNpgsql(npgConnectionString, x => x.MigrationsAssembly(migrationsAssemblyName));
//});
services
.AddShardingDbContext<AbstaractShardingDbContext>()
.AddEntityConfig(o =>
{
o.CreateDataBaseOnlyOnStart = true; // 启动时创建数据库
o.CreateShardingTableOnStart = true; // 如果您使用code-first建议选择false //! 这里需要注意，如果是迁移更新，必须设置为false，然后再开启，用于启动时候自动创建分片
o.EnsureCreatedWithOutShardingTable = false; // 如果您使用code-first建议修改为fsle
o.IgnoreCreateTableError = false; // 如果不忽略就会输出warning的日志
//添加分库路由
o.AddShardingDataSourceRoute<TestModelVirtualDataSourceRoute>();
//添加分表路由
o.AddShardingTableRoute<TestModelVirtualTableRoute>();
o.AddShardingTableRoute<StudentVirtualTableRoute>();
o.AddShardingTableRoute<GuidShardingTableVirtualTableRoute>();
})
.AddConfig(op =>
{
op.ConfigId = "c1";
// 添加这个对象的字符串创建dbcontext 优先级低 优先采用AddConfig下的
op.UseShardingQuery((connString, builder) => builder.UseNpgsql(connString, opt => opt.MigrationsAssembly(migrationsAssemblyName)));
// 添加这个对象的链接创建dbcontext 优先级低 优先采用AddConfig下的
op.UseShardingTransaction((connection, builder) => builder.UseNpgsql(connection, opt => opt.MigrationsAssembly(migrationsAssemblyName)));
op.ReplaceTableEnsureManager(sp => new SqlServerTableEnsureManager<AbstaractShardingDbContext>());
op.AddDefaultDataSource("ds0", npgConnectionString);
//op.AddExtraDataSource(sp => new Dictionary<string, string>()
//{
// {"11","server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo_11;"},
// {"22","server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo_22;"},
// //{"C","server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemoC;"},
//});
op.UseShellDbContextConfigure(builder =>
{
builder.ReplaceService<IMigrationsSqlGenerator, ShardingMigrationsSqlGenerator<AbstaractShardingDbContext>>()
//.ReplaceService<IMigrationsModelDiffer, RemoveForeignKeyMigrationsModelDiffer>();//如果需要移除外键可以添加这个
;
});
})
.EnsureConfig();
#endregion
#region 注入 identity
services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<AbstaractShardingDbContext>();
services.AddRazorPages();
services.AddDatabaseDeveloperPageExceptionFilter();
#endregion
var app = builder.Build();
var shardingBootstrapper = app.Services.GetRequiredService<IShardingBootstrapper>();
shardingBootstrapper.Start();
// 初始化动态数据源
app.Services.InitialDynamicVirtualDataSource();
app.UseHsts();
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints => { endpoints.MapRazorPages(); });
// 使用迁移
using var scope = app.Services.CreateScope();
// 初始化数据库及启用迁移设置
DbInitializationProvider.Initialize<AbstaractShardingDbContext>(scope.ServiceProvider);
await app.RunAsync();

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<UserSecretsId>aspnet-WebApplication1-1FCCDCDB-A580-40BC-B4DC-17498EB689D9</UserSecretsId>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="6.0.6" />
<PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="6.0.6" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.6">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.5" />
<PackageReference Include="ShardingCore" Version="6.5.0.9" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\WebApplication1.Data\WebApplication1.Data.csproj" />
<ProjectReference Include="..\WebApplication1.Migrations.Sharding\WebApplication1.Migrations.Sharding.csproj" />
</ItemGroup>
</Project>

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft": "Warning",
"Microsoft.Hosting.Lifetime": "Information"
}
}
}

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{
"ConnectionStrings": {
//"DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=aspnet-WebApplication1-53bc9b9d-9d6a-45d4-8429-2a2761773502;Trusted_Connection=True;MultipleActiveResultSets=true",
"DefaultConnection": "server=127.0.0.1;port=5432;uid=postgres;pwd=3#SanJing;database=shardingCoreDemo;"
},
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft": "Warning",
"Microsoft.Hosting.Lifetime": "Information"
}
},
"AllowedHosts": "*"
}

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/* Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
for details on configuring this project to bundle and minify static web assets. */
a.navbar-brand {
white-space: normal;
text-align: center;
word-break: break-all;
}
/* Provide sufficient contrast against white background */
a {
color: #0366d6;
}
.btn-primary {
color: #fff;
background-color: #1b6ec2;
border-color: #1861ac;
}
.nav-pills .nav-link.active, .nav-pills .show > .nav-link {
color: #fff;
background-color: #1b6ec2;
border-color: #1861ac;
}
/* Sticky footer styles
-------------------------------------------------- */
html {
font-size: 14px;
}
@media (min-width: 768px) {
html {
font-size: 16px;
}
}
.border-top {
border-top: 1px solid #e5e5e5;
}
.border-bottom {
border-bottom: 1px solid #e5e5e5;
}
.box-shadow {
box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
}
button.accept-policy {
font-size: 1rem;
line-height: inherit;
}
/* Sticky footer styles
-------------------------------------------------- */
html {
position: relative;
min-height: 100%;
}
body {
/* Margin bottom by footer height */
margin-bottom: 60px;
}
.footer {
position: absolute;
bottom: 0;
width: 100%;
white-space: nowrap;
line-height: 60px; /* Vertically center the text there */
}

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// Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
// for details on configuring this project to bundle and minify static web assets.
// Write your Javascript code.

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# ShardingCoreDemo
[ShardingCore](https://github.com/dotnetcore/sharding-core) step by step，记录 shardingcore 学习及使用过程，记录从原始无 shardingcore 到 分库且分表的配置升级，数据读写的过程
本示例数据源使用的是 Npgsql，使用 sqlserver，mysql 的可以更改其相应的数据驱动
> 项目的 commit 记录既是项目升级改造的历史步骤。
## 目录介绍
```txt
├── WebApplication1 webapp 项目
├── WebApplication1.Data 存储数据模型和dbcontext的项目（一些公用的方法也存储在这个项目中）
├── WebApplication1.Migrations.NoSharding 未分片前的迁移程序集项目
├── WebApplication1.Migrations.Sharding 分片后的迁移程序集项目
├── WebApplication1.Migrations.Tool 迁移工具项目，在tool项目下可利用 ef tool 完成迁移文件的创建
```
## 分支介绍
```txt
├── master 主分支，从一个正常的ef codefirst 项目，到使用 sharingcore 分库(静态)分表 的过程
├── 动态分库 动态分库分支，由于动态分库会移除掉静态分库的部分内容，所以单独分支存在，在完成静态分库后创建
```
### master 分支
详细查看分支 [commit](https://gitee.com/dodu/sharding-core-demo/commits/master) 记录
### 动态分库 分支
在主库有一个维护动态库的表：TestModelKey，维护更新时，动态同步到配置文件 muitDbConfig.json，这个配置文件名的配置请参考 [TestModelVirtualDataSourceRoute.cs](https://gitee.com/dodu/sharding-core-demo/blob/%E5%8A%A8%E6%80%81%E5%88%86%E5%BA%93/WebApplication1.Data/Sharding/TestModelVirtualDataSourceRoute.cs)，在 WebApplication1/bin/net 6.0 目录下。
如果本地未生成库时，请在 tool 项目目录下，使用 ef tool 命令来做数据库的初始迁移(包含分库分表)，需要将 WebApplication1/bin/net 6.0 目录下的 muitDbConfig.json 拷贝到 WebApplication1.Migrations.Tool/bin/net 6.0 目录下，以供 tool 项目使用，当然也可以利用其他持久化方法。如果本地已经存在完整的库(包含分库)，则可直接运行 webapp 项目
初始化后的库结构如下：
![02](images/02.png)
之后启动 webapp 项目，就可以动态来维护分库，这根据每个人的业务需要，这里针对分库的维护，专门做了示例：
![03](images/03.png)
![04](images/04.png)
![05](images/05.png)