1356 lines
63 KiB
Python
1356 lines
63 KiB
Python
from __future__ import unicode_literals
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import unittest
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try:
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import sqlparse
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except ImportError:
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sqlparse = None
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from django import test
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from django.test import override_settings
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from django.db import connection, migrations, models, router
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from django.db.migrations.migration import Migration
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from django.db.migrations.state import ProjectState
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from django.db.models.fields import NOT_PROVIDED
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from django.db.transaction import atomic
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from django.db.utils import IntegrityError, DatabaseError
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from .test_base import MigrationTestBase
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class OperationTestBase(MigrationTestBase):
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"""
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Common functions to help test operations.
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"""
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def apply_operations(self, app_label, project_state, operations):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor() as editor:
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return migration.apply(project_state, editor)
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def unapply_operations(self, app_label, project_state, operations):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor() as editor:
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return migration.unapply(project_state, editor)
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def make_test_state(self, app_label, operation, **kwargs):
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"""
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Makes a test state using set_up_test_model and returns the
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original state and the state after the migration is applied.
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"""
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project_state = self.set_up_test_model(app_label, **kwargs)
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new_state = project_state.clone()
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operation.state_forwards(app_label, new_state)
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return project_state, new_state
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def set_up_test_model(self, app_label, second_model=False, third_model=False, related_model=False, mti_model=False, proxy_model=False, unique_together=False, options=False):
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"""
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Creates a test model state and database table.
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"""
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# Delete the tables if they already exist
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with connection.cursor() as cursor:
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# Start with ManyToMany tables
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try:
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cursor.execute("DROP TABLE %s_pony_stables" % app_label)
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except DatabaseError:
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pass
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try:
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cursor.execute("DROP TABLE %s_pony_vans" % app_label)
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except DatabaseError:
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pass
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# Then standard model tables
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try:
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cursor.execute("DROP TABLE %s_pony" % app_label)
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except DatabaseError:
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pass
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try:
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cursor.execute("DROP TABLE %s_stable" % app_label)
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except DatabaseError:
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pass
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try:
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cursor.execute("DROP TABLE %s_van" % app_label)
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except DatabaseError:
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pass
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# Make the "current" state
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model_options = {
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"swappable": "TEST_SWAP_MODEL",
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"unique_together": [["pink", "weight"]] if unique_together else [],
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}
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if options:
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model_options["permissions"] = [("can_groom", "Can groom")]
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operations = [migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=3)),
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("weight", models.FloatField()),
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],
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options=model_options,
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)]
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if second_model:
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operations.append(migrations.CreateModel(
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"Stable",
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[
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("id", models.AutoField(primary_key=True)),
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]
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))
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if third_model:
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operations.append(migrations.CreateModel(
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"Van",
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[
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("id", models.AutoField(primary_key=True)),
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]
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))
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if related_model:
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operations.append(migrations.CreateModel(
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"Rider",
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[
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("id", models.AutoField(primary_key=True)),
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("pony", models.ForeignKey("Pony")),
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("friend", models.ForeignKey("self"))
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],
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))
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if mti_model:
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operations.append(migrations.CreateModel(
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"ShetlandPony",
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fields=[
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('pony_ptr', models.OneToOneField(
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auto_created=True,
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primary_key=True,
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to_field='id',
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serialize=False,
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to='Pony',
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)),
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("cuteness", models.IntegerField(default=1)),
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],
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bases=['%s.Pony' % app_label],
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))
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if proxy_model:
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operations.append(migrations.CreateModel(
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"ProxyPony",
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fields=[],
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options={"proxy": True},
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bases=['%s.Pony' % app_label],
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))
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return self.apply_operations(app_label, ProjectState(), operations)
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class OperationTests(OperationTestBase):
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"""
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Tests running the operations and making sure they do what they say they do.
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Each test looks at their state changing, and then their database operation -
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both forwards and backwards.
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"""
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def test_create_model(self):
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"""
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Tests the CreateModel operation.
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Most other tests use this operation as part of setup, so check failures here first.
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"""
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operation = migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=1)),
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],
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)
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self.assertEqual(operation.describe(), "Create model Pony")
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# Test the state alteration
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project_state = ProjectState()
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new_state = project_state.clone()
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operation.state_forwards("test_crmo", new_state)
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self.assertEqual(new_state.models["test_crmo", "pony"].name, "Pony")
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self.assertEqual(len(new_state.models["test_crmo", "pony"].fields), 2)
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# Test the database alteration
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self.assertTableNotExists("test_crmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmo", editor, project_state, new_state)
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self.assertTableExists("test_crmo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmo", editor, new_state, project_state)
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self.assertTableNotExists("test_crmo_pony")
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# And deconstruction
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definition = operation.deconstruct()
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self.assertEqual(definition[0], "CreateModel")
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self.assertEqual(len(definition[1]), 2)
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self.assertEqual(len(definition[2]), 0)
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self.assertEqual(definition[1][0], "Pony")
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def test_create_model_with_unique_after(self):
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"""
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Tests the CreateModel operation directly followed by an
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AlterUniqueTogether (bug #22844 - sqlite remake issues)
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"""
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operation1 = migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=1)),
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],
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)
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operation2 = migrations.CreateModel(
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"Rider",
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[
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("id", models.AutoField(primary_key=True)),
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("number", models.IntegerField(default=1)),
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("pony", models.ForeignKey("test_crmoua.Pony")),
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],
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)
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operation3 = migrations.AlterUniqueTogether(
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"Rider",
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[
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("number", "pony"),
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],
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)
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# Test the database alteration
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project_state = ProjectState()
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self.assertTableNotExists("test_crmoua_pony")
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self.assertTableNotExists("test_crmoua_rider")
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with connection.schema_editor() as editor:
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new_state = project_state.clone()
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operation1.state_forwards("test_crmoua", new_state)
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operation1.database_forwards("test_crmoua", editor, project_state, new_state)
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project_state, new_state = new_state, new_state.clone()
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operation2.state_forwards("test_crmoua", new_state)
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operation2.database_forwards("test_crmoua", editor, project_state, new_state)
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project_state, new_state = new_state, new_state.clone()
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operation3.state_forwards("test_crmoua", new_state)
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operation3.database_forwards("test_crmoua", editor, project_state, new_state)
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self.assertTableExists("test_crmoua_pony")
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self.assertTableExists("test_crmoua_rider")
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def test_create_model_m2m(self):
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"""
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Test the creation of a model with a ManyToMany field and the
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auto-created "through" model.
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"""
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project_state = self.set_up_test_model("test_crmomm")
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operation = migrations.CreateModel(
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"Stable",
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[
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("id", models.AutoField(primary_key=True)),
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("ponies", models.ManyToManyField("Pony", related_name="stables"))
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]
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)
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# Test the state alteration
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new_state = project_state.clone()
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operation.state_forwards("test_crmomm", new_state)
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# Test the database alteration
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self.assertTableNotExists("test_crmomm_stable_ponies")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmomm", editor, project_state, new_state)
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self.assertTableExists("test_crmomm_stable")
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self.assertTableExists("test_crmomm_stable_ponies")
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self.assertColumnNotExists("test_crmomm_stable", "ponies")
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# Make sure the M2M field actually works
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with atomic():
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new_apps = new_state.render()
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Pony = new_apps.get_model("test_crmomm", "Pony")
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Stable = new_apps.get_model("test_crmomm", "Stable")
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stable = Stable.objects.create()
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p1 = Pony.objects.create(pink=False, weight=4.55)
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p2 = Pony.objects.create(pink=True, weight=5.43)
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stable.ponies.add(p1, p2)
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self.assertEqual(stable.ponies.count(), 2)
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stable.ponies.all().delete()
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmomm", editor, new_state, project_state)
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self.assertTableNotExists("test_crmomm_stable")
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self.assertTableNotExists("test_crmomm_stable_ponies")
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def test_create_model_inheritance(self):
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"""
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Tests the CreateModel operation on a multi-table inheritance setup.
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"""
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project_state = self.set_up_test_model("test_crmoih")
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# Test the state alteration
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operation = migrations.CreateModel(
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"ShetlandPony",
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[
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('pony_ptr', models.OneToOneField(
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auto_created=True,
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primary_key=True,
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to_field='id',
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serialize=False,
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to='test_crmoih.Pony',
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)),
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("cuteness", models.IntegerField(default=1)),
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],
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)
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new_state = project_state.clone()
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operation.state_forwards("test_crmoih", new_state)
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self.assertIn(("test_crmoih", "shetlandpony"), new_state.models)
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# Test the database alteration
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self.assertTableNotExists("test_crmoih_shetlandpony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmoih", editor, project_state, new_state)
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self.assertTableExists("test_crmoih_shetlandpony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmoih", editor, new_state, project_state)
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self.assertTableNotExists("test_crmoih_shetlandpony")
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def test_create_proxy_model(self):
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"""
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Tests that CreateModel ignores proxy models.
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"""
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project_state = self.set_up_test_model("test_crprmo")
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# Test the state alteration
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operation = migrations.CreateModel(
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"ProxyPony",
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[],
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options={"proxy": True},
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bases=("test_crprmo.Pony", ),
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)
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self.assertEqual(operation.describe(), "Create proxy model ProxyPony")
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new_state = project_state.clone()
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operation.state_forwards("test_crprmo", new_state)
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self.assertIn(("test_crprmo", "proxypony"), new_state.models)
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# Test the database alteration
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crprmo", editor, project_state, new_state)
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crprmo", editor, new_state, project_state)
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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def test_delete_model(self):
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"""
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Tests the DeleteModel operation.
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"""
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project_state = self.set_up_test_model("test_dlmo")
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# Test the state alteration
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operation = migrations.DeleteModel("Pony")
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self.assertEqual(operation.describe(), "Delete model Pony")
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new_state = project_state.clone()
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operation.state_forwards("test_dlmo", new_state)
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self.assertNotIn(("test_dlmo", "pony"), new_state.models)
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# Test the database alteration
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self.assertTableExists("test_dlmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_dlmo", editor, project_state, new_state)
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self.assertTableNotExists("test_dlmo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_dlmo", editor, new_state, project_state)
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self.assertTableExists("test_dlmo_pony")
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def test_delete_proxy_model(self):
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"""
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Tests the DeleteModel operation ignores proxy models.
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"""
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project_state = self.set_up_test_model("test_dlprmo", proxy_model=True)
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# Test the state alteration
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operation = migrations.DeleteModel("ProxyPony")
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new_state = project_state.clone()
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operation.state_forwards("test_dlprmo", new_state)
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self.assertIn(("test_dlprmo", "proxypony"), project_state.models)
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self.assertNotIn(("test_dlprmo", "proxypony"), new_state.models)
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# Test the database alteration
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self.assertTableExists("test_dlprmo_pony")
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self.assertTableNotExists("test_dlprmo_proxypony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_dlprmo", editor, project_state, new_state)
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self.assertTableExists("test_dlprmo_pony")
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self.assertTableNotExists("test_dlprmo_proxypony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_dlprmo", editor, new_state, project_state)
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self.assertTableExists("test_dlprmo_pony")
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self.assertTableNotExists("test_dlprmo_proxypony")
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def test_rename_model(self):
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"""
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Tests the RenameModel operation.
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"""
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project_state = self.set_up_test_model("test_rnmo", related_model=True)
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# Test the state alteration
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operation = migrations.RenameModel("Pony", "Horse")
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self.assertEqual(operation.describe(), "Rename model Pony to Horse")
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new_state = project_state.clone()
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operation.state_forwards("test_rnmo", new_state)
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self.assertNotIn(("test_rnmo", "pony"), new_state.models)
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self.assertIn(("test_rnmo", "horse"), new_state.models)
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# Remember, RenameModel also repoints all incoming FKs and M2Ms
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self.assertEqual("test_rnmo.Horse", new_state.models["test_rnmo", "rider"].fields[1][1].rel.to)
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# Test the database alteration
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self.assertTableExists("test_rnmo_pony")
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self.assertTableNotExists("test_rnmo_horse")
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if connection.features.supports_foreign_keys:
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self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
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self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
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with connection.schema_editor() as editor:
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operation.database_forwards("test_rnmo", editor, project_state, new_state)
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self.assertTableNotExists("test_rnmo_pony")
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self.assertTableExists("test_rnmo_horse")
|
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if connection.features.supports_foreign_keys:
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self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
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self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
|
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# And test reversal
|
|
with connection.schema_editor() as editor:
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operation.database_backwards("test_rnmo", editor, new_state, project_state)
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self.assertTableExists("test_rnmo_pony")
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self.assertTableNotExists("test_rnmo_horse")
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if connection.features.supports_foreign_keys:
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self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
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self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
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|
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def test_rename_model_with_self_referential_fk(self):
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"""
|
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Tests the RenameModel operation on model with self referential FK.
|
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"""
|
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project_state = self.set_up_test_model("test_rmwsrf", related_model=True)
|
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# Test the state alteration
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operation = migrations.RenameModel("Rider", "HorseRider")
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self.assertEqual(operation.describe(), "Rename model Rider to HorseRider")
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new_state = project_state.clone()
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operation.state_forwards("test_rmwsrf", new_state)
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self.assertNotIn(("test_rmwsrf", "rider"), new_state.models)
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self.assertIn(("test_rmwsrf", "horserider"), new_state.models)
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# Remember, RenameModel also repoints all incoming FKs and M2Ms
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self.assertEqual("test_rmwsrf.HorseRider", new_state.models["test_rmwsrf", "horserider"].fields[2][1].rel.to)
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# Test the database alteration
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self.assertTableExists("test_rmwsrf_rider")
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self.assertTableNotExists("test_rmwsrf_horserider")
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if connection.features.supports_foreign_keys:
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self.assertFKExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_rider", "id"))
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self.assertFKNotExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
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with connection.schema_editor() as editor:
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operation.database_forwards("test_rmwsrf", editor, project_state, new_state)
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self.assertTableNotExists("test_rmwsrf_rider")
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self.assertTableExists("test_rmwsrf_horserider")
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if connection.features.supports_foreign_keys:
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self.assertFKNotExists("test_rmwsrf_horserider", ["friend_id"], ("test_rmwsrf_rider", "id"))
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self.assertFKExists("test_rmwsrf_horserider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
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# And test reversal
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with connection.schema_editor() as editor:
|
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operation.database_backwards("test_rmwsrf", editor, new_state, project_state)
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self.assertTableExists("test_rmwsrf_rider")
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self.assertTableNotExists("test_rmwsrf_horserider")
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|
if connection.features.supports_foreign_keys:
|
|
self.assertFKExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_rider", "id"))
|
|
self.assertFKNotExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
|
|
|
|
def test_add_field(self):
|
|
"""
|
|
Tests the AddField operation.
|
|
"""
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=5),
|
|
)
|
|
self.assertEqual(operation.describe(), "Add field height to Pony")
|
|
project_state, new_state = self.make_test_state("test_adfl", operation)
|
|
self.assertEqual(len(new_state.models["test_adfl", "pony"].fields), 4)
|
|
field = [
|
|
f for n, f in new_state.models["test_adfl", "pony"].fields
|
|
if n == "height"
|
|
][0]
|
|
self.assertEqual(field.default, 5)
|
|
# Test the database alteration
|
|
self.assertColumnNotExists("test_adfl_pony", "height")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adfl", editor, project_state, new_state)
|
|
self.assertColumnExists("test_adfl_pony", "height")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adfl", editor, new_state, project_state)
|
|
self.assertColumnNotExists("test_adfl_pony", "height")
|
|
|
|
def test_add_charfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adchfl")
|
|
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_adchfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adchfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"text",
|
|
models.CharField(max_length=10, default="some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.CharField(max_length=10, default=""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.CharField(max_length=10, default="42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.CharField(max_length=10, default='"\'"'),
|
|
),
|
|
])
|
|
|
|
new_apps = new_state.render()
|
|
Pony = new_apps.get_model("test_adchfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
self.assertEqual(pony.text, "some text")
|
|
self.assertEqual(pony.empty, "")
|
|
self.assertEqual(pony.digits, "42")
|
|
self.assertEqual(pony.quotes, '"\'"')
|
|
|
|
def test_add_textfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adtxtfl")
|
|
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_adtxtfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adtxtfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"text",
|
|
models.TextField(default="some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.TextField(default=""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.TextField(default="42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.TextField(default='"\'"'),
|
|
),
|
|
])
|
|
|
|
new_apps = new_state.render()
|
|
Pony = new_apps.get_model("test_adtxtfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
self.assertEqual(pony.text, "some text")
|
|
self.assertEqual(pony.empty, "")
|
|
self.assertEqual(pony.digits, "42")
|
|
self.assertEqual(pony.quotes, '"\'"')
|
|
|
|
@test.skipUnlessDBFeature('supports_binary_field')
|
|
def test_add_binaryfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField/BinaryField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adbinfl")
|
|
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_adbinfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adbinfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"blob",
|
|
models.BinaryField(default=b"some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.BinaryField(default=b""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.BinaryField(default=b"42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.BinaryField(default=b'"\'"'),
|
|
),
|
|
])
|
|
|
|
new_apps = new_state.render()
|
|
Pony = new_apps.get_model("test_adbinfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
# SQLite returns buffer/memoryview, cast to bytes for checking.
|
|
self.assertEqual(bytes(pony.blob), b"some text")
|
|
self.assertEqual(bytes(pony.empty), b"")
|
|
self.assertEqual(bytes(pony.digits), b"42")
|
|
self.assertEqual(bytes(pony.quotes), b'"\'"')
|
|
|
|
def test_column_name_quoting(self):
|
|
"""
|
|
Column names that are SQL keywords shouldn't cause problems when used
|
|
in migrations (#22168).
|
|
"""
|
|
project_state = self.set_up_test_model("test_regr22168")
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"order",
|
|
models.IntegerField(default=0),
|
|
)
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_regr22168", new_state)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_regr22168", editor, project_state, new_state)
|
|
self.assertColumnExists("test_regr22168_pony", "order")
|
|
|
|
def test_add_field_preserve_default(self):
|
|
"""
|
|
Tests the AddField operation's state alteration
|
|
when preserve_default = False.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adflpd")
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=4),
|
|
preserve_default=False,
|
|
)
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_adflpd", new_state)
|
|
self.assertEqual(len(new_state.models["test_adflpd", "pony"].fields), 4)
|
|
field = [
|
|
f for n, f in new_state.models["test_adflpd", "pony"].fields
|
|
if n == "height"
|
|
][0]
|
|
self.assertEqual(field.default, NOT_PROVIDED)
|
|
# Test the database alteration
|
|
project_state.render().get_model("test_adflpd", "pony").objects.create(
|
|
weight=4,
|
|
)
|
|
self.assertColumnNotExists("test_adflpd_pony", "height")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adflpd", editor, project_state, new_state)
|
|
self.assertColumnExists("test_adflpd_pony", "height")
|
|
|
|
def test_add_field_m2m(self):
|
|
"""
|
|
Tests the AddField operation with a ManyToManyField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adflmm", second_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_adflmm", new_state)
|
|
self.assertEqual(len(new_state.models["test_adflmm", "pony"].fields), 4)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_adflmm_pony_stables")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adflmm", editor, project_state, new_state)
|
|
self.assertTableExists("test_adflmm_pony_stables")
|
|
self.assertColumnNotExists("test_adflmm_pony", "stables")
|
|
# Make sure the M2M field actually works
|
|
with atomic():
|
|
new_apps = new_state.render()
|
|
Pony = new_apps.get_model("test_adflmm", "Pony")
|
|
p = Pony.objects.create(pink=False, weight=4.55)
|
|
p.stables.create()
|
|
self.assertEqual(p.stables.count(), 1)
|
|
p.stables.all().delete()
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adflmm", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_adflmm_pony_stables")
|
|
|
|
def test_alter_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_alflmm", second_model=True)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_alflmm", "Pony")
|
|
self.assertFalse(Pony._meta.get_field('stables').blank)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AlterField("Pony", "stables", models.ManyToManyField(to="Stable", related_name="ponies", blank=True))
|
|
])
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_alflmm", "Pony")
|
|
self.assertTrue(Pony._meta.get_field('stables').blank)
|
|
|
|
def test_repoint_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_alflmm", second_model=True, third_model=True)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "places", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_alflmm", "Pony")
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AlterField("Pony", "places", models.ManyToManyField(to="Van", related_name="ponies"))
|
|
])
|
|
|
|
# Ensure the new field actually works
|
|
new_apps = project_state.render()
|
|
Pony = new_apps.get_model("test_alflmm", "Pony")
|
|
p = Pony.objects.create(pink=False, weight=4.55)
|
|
p.places.create()
|
|
self.assertEqual(p.places.count(), 1)
|
|
p.places.all().delete()
|
|
|
|
def test_remove_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_rmflmm", second_model=True)
|
|
|
|
project_state = self.apply_operations("test_rmflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
self.assertTableExists("test_rmflmm_pony_stables")
|
|
|
|
operations = [migrations.RemoveField("Pony", "stables")]
|
|
self.apply_operations("test_rmflmm", project_state, operations=operations)
|
|
self.assertTableNotExists("test_rmflmm_pony_stables")
|
|
|
|
# And test reversal
|
|
self.unapply_operations("test_rmflmm", project_state, operations=operations)
|
|
self.assertTableExists("test_rmflmm_pony_stables")
|
|
|
|
def test_remove_field_m2m_with_through(self):
|
|
project_state = self.set_up_test_model("test_rmflmmwt", second_model=True)
|
|
|
|
self.assertTableNotExists("test_rmflmmwt_ponystables")
|
|
project_state = self.apply_operations("test_rmflmmwt", project_state, operations=[
|
|
migrations.CreateModel("PonyStables", fields=[
|
|
("pony", models.ForeignKey('test_rmflmmwt.Pony')),
|
|
("stable", models.ForeignKey('test_rmflmmwt.Stable')),
|
|
]),
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies", through='test_rmflmmwt.PonyStables'))
|
|
])
|
|
self.assertTableExists("test_rmflmmwt_ponystables")
|
|
|
|
operations = [migrations.RemoveField("Pony", "stables")]
|
|
self.apply_operations("test_rmflmmwt", project_state, operations=operations)
|
|
|
|
def test_remove_field(self):
|
|
"""
|
|
Tests the RemoveField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rmfl")
|
|
# Test the state alteration
|
|
operation = migrations.RemoveField("Pony", "pink")
|
|
self.assertEqual(operation.describe(), "Remove field pink from Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rmfl", new_state)
|
|
self.assertEqual(len(new_state.models["test_rmfl", "pony"].fields), 2)
|
|
# Test the database alteration
|
|
self.assertColumnExists("test_rmfl_pony", "pink")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rmfl", editor, project_state, new_state)
|
|
self.assertColumnNotExists("test_rmfl_pony", "pink")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rmfl", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rmfl_pony", "pink")
|
|
|
|
def test_remove_fk(self):
|
|
"""
|
|
Tests the RemoveField operation on a foreign key.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rfk", related_model=True)
|
|
self.assertColumnExists("test_rfk_rider", "pony_id")
|
|
operation = migrations.RemoveField("Rider", "pony")
|
|
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rfk", new_state)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rfk", editor, project_state, new_state)
|
|
self.assertColumnNotExists("test_rfk_rider", "pony_id")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rfk", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rfk_rider", "pony_id")
|
|
|
|
def test_alter_model_table(self):
|
|
"""
|
|
Tests the AlterModelTable operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almota")
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelTable("Pony", "test_almota_pony_2")
|
|
self.assertEqual(operation.describe(), "Rename table for Pony to test_almota_pony_2")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almota", new_state)
|
|
self.assertEqual(new_state.models["test_almota", "pony"].options["db_table"], "test_almota_pony_2")
|
|
# Test the database alteration
|
|
self.assertTableExists("test_almota_pony")
|
|
self.assertTableNotExists("test_almota_pony_2")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_almota", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_almota_pony")
|
|
self.assertTableExists("test_almota_pony_2")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_almota", editor, new_state, project_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
self.assertTableNotExists("test_almota_pony_2")
|
|
|
|
def test_alter_model_table_noop(self):
|
|
"""
|
|
Tests the AlterModelTable operation if the table name is not changed.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almota")
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelTable("Pony", "test_almota_pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almota", new_state)
|
|
self.assertEqual(new_state.models["test_almota", "pony"].options["db_table"], "test_almota_pony")
|
|
# Test the database alteration
|
|
self.assertTableExists("test_almota_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_almota", editor, project_state, new_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_almota", editor, new_state, project_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
|
|
def test_alter_field(self):
|
|
"""
|
|
Tests the AlterField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alfl")
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "pink", models.IntegerField(null=True))
|
|
self.assertEqual(operation.describe(), "Alter field pink on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alfl", new_state)
|
|
self.assertEqual(project_state.models["test_alfl", "pony"].get_field_by_name("pink").null, False)
|
|
self.assertEqual(new_state.models["test_alfl", "pony"].get_field_by_name("pink").null, True)
|
|
# Test the database alteration
|
|
self.assertColumnNotNull("test_alfl_pony", "pink")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alfl", editor, project_state, new_state)
|
|
self.assertColumnNull("test_alfl_pony", "pink")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alfl", editor, new_state, project_state)
|
|
self.assertColumnNotNull("test_alfl_pony", "pink")
|
|
|
|
def test_alter_field_pk(self):
|
|
"""
|
|
Tests the AlterField operation on primary keys (for things like PostgreSQL's SERIAL weirdness)
|
|
"""
|
|
project_state = self.set_up_test_model("test_alflpk")
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "id", models.IntegerField(primary_key=True))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alflpk", new_state)
|
|
self.assertIsInstance(project_state.models["test_alflpk", "pony"].get_field_by_name("id"), models.AutoField)
|
|
self.assertIsInstance(new_state.models["test_alflpk", "pony"].get_field_by_name("id"), models.IntegerField)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alflpk", editor, project_state, new_state)
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alflpk", editor, new_state, project_state)
|
|
|
|
@unittest.skipUnless(connection.features.supports_foreign_keys, "No FK support")
|
|
def test_alter_field_pk_fk(self):
|
|
"""
|
|
Tests the AlterField operation on primary keys changes any FKs pointing to it.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alflpkfk", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "id", models.FloatField(primary_key=True))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alflpkfk", new_state)
|
|
self.assertIsInstance(project_state.models["test_alflpkfk", "pony"].get_field_by_name("id"), models.AutoField)
|
|
self.assertIsInstance(new_state.models["test_alflpkfk", "pony"].get_field_by_name("id"), models.FloatField)
|
|
|
|
def assertIdTypeEqualsFkType():
|
|
with connection.cursor() as cursor:
|
|
id_type = [c.type_code for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_pony") if c.name == "id"][0]
|
|
fk_type = [c.type_code for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_rider") if c.name == "pony_id"][0]
|
|
self.assertEqual(id_type, fk_type)
|
|
|
|
assertIdTypeEqualsFkType()
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alflpkfk", editor, project_state, new_state)
|
|
assertIdTypeEqualsFkType()
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alflpkfk", editor, new_state, project_state)
|
|
assertIdTypeEqualsFkType()
|
|
|
|
def test_rename_field(self):
|
|
"""
|
|
Tests the RenameField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rnfl", unique_together=True)
|
|
# Test the state alteration
|
|
operation = migrations.RenameField("Pony", "pink", "blue")
|
|
self.assertEqual(operation.describe(), "Rename field pink on Pony to blue")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rnfl", new_state)
|
|
self.assertIn("blue", [n for n, f in new_state.models["test_rnfl", "pony"].fields])
|
|
self.assertNotIn("pink", [n for n, f in new_state.models["test_rnfl", "pony"].fields])
|
|
# Make sure the unique_together has the renamed column too
|
|
self.assertIn("blue", new_state.models["test_rnfl", "pony"].options['unique_together'][0])
|
|
self.assertNotIn("pink", new_state.models["test_rnfl", "pony"].options['unique_together'][0])
|
|
# Test the database alteration
|
|
self.assertColumnExists("test_rnfl_pony", "pink")
|
|
self.assertColumnNotExists("test_rnfl_pony", "blue")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rnfl", editor, project_state, new_state)
|
|
self.assertColumnExists("test_rnfl_pony", "blue")
|
|
self.assertColumnNotExists("test_rnfl_pony", "pink")
|
|
# Ensure the unique constraint has been ported over
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("INSERT INTO test_rnfl_pony (blue, weight) VALUES (1, 1)")
|
|
with self.assertRaises(IntegrityError):
|
|
with atomic():
|
|
cursor.execute("INSERT INTO test_rnfl_pony (blue, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_rnfl_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rnfl", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rnfl_pony", "pink")
|
|
self.assertColumnNotExists("test_rnfl_pony", "blue")
|
|
|
|
def test_alter_unique_together(self):
|
|
"""
|
|
Tests the AlterUniqueTogether operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alunto")
|
|
# Test the state alteration
|
|
operation = migrations.AlterUniqueTogether("Pony", [("pink", "weight")])
|
|
self.assertEqual(operation.describe(), "Alter unique_together for Pony (1 constraint(s))")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alunto", new_state)
|
|
self.assertEqual(len(project_state.models["test_alunto", "pony"].options.get("unique_together", set())), 0)
|
|
self.assertEqual(len(new_state.models["test_alunto", "pony"].options.get("unique_together", set())), 1)
|
|
# Make sure we can insert duplicate rows
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alunto", editor, project_state, new_state)
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
with self.assertRaises(IntegrityError):
|
|
with atomic():
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alunto", editor, new_state, project_state)
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# Test flat unique_together
|
|
operation = migrations.AlterUniqueTogether("Pony", ("pink", "weight"))
|
|
operation.state_forwards("test_alunto", new_state)
|
|
self.assertEqual(len(new_state.models["test_alunto", "pony"].options.get("unique_together", set())), 1)
|
|
|
|
def test_alter_unique_together_remove(self):
|
|
operation = migrations.AlterUniqueTogether("Pony", None)
|
|
self.assertEqual(operation.describe(), "Alter unique_together for Pony (0 constraint(s))")
|
|
|
|
def test_alter_index_together(self):
|
|
"""
|
|
Tests the AlterIndexTogether operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alinto")
|
|
# Test the state alteration
|
|
operation = migrations.AlterIndexTogether("Pony", [("pink", "weight")])
|
|
self.assertEqual(operation.describe(), "Alter index_together for Pony (1 constraint(s))")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alinto", new_state)
|
|
self.assertEqual(len(project_state.models["test_alinto", "pony"].options.get("index_together", set())), 0)
|
|
self.assertEqual(len(new_state.models["test_alinto", "pony"].options.get("index_together", set())), 1)
|
|
# Make sure there's no matching index
|
|
self.assertIndexNotExists("test_alinto_pony", ["pink", "weight"])
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alinto", editor, project_state, new_state)
|
|
self.assertIndexExists("test_alinto_pony", ["pink", "weight"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alinto", editor, new_state, project_state)
|
|
self.assertIndexNotExists("test_alinto_pony", ["pink", "weight"])
|
|
|
|
def test_alter_index_together_remove(self):
|
|
operation = migrations.AlterIndexTogether("Pony", None)
|
|
self.assertEqual(operation.describe(), "Alter index_together for Pony (0 constraint(s))")
|
|
|
|
def test_alter_model_options(self):
|
|
"""
|
|
Tests the AlterModelOptions operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almoop")
|
|
# Test the state alteration (no DB alteration to test)
|
|
operation = migrations.AlterModelOptions("Pony", {"permissions": [("can_groom", "Can groom")]})
|
|
self.assertEqual(operation.describe(), "Change Meta options on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almoop", new_state)
|
|
self.assertEqual(len(project_state.models["test_almoop", "pony"].options.get("permissions", [])), 0)
|
|
self.assertEqual(len(new_state.models["test_almoop", "pony"].options.get("permissions", [])), 1)
|
|
self.assertEqual(new_state.models["test_almoop", "pony"].options["permissions"][0][0], "can_groom")
|
|
|
|
def test_alter_model_options_emptying(self):
|
|
"""
|
|
Tests that the AlterModelOptions operation removes keys from the dict (#23121)
|
|
"""
|
|
project_state = self.set_up_test_model("test_almoop", options=True)
|
|
# Test the state alteration (no DB alteration to test)
|
|
operation = migrations.AlterModelOptions("Pony", {})
|
|
self.assertEqual(operation.describe(), "Change Meta options on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almoop", new_state)
|
|
self.assertEqual(len(project_state.models["test_almoop", "pony"].options.get("permissions", [])), 1)
|
|
self.assertEqual(len(new_state.models["test_almoop", "pony"].options.get("permissions", [])), 0)
|
|
|
|
def test_alter_order_with_respect_to(self):
|
|
"""
|
|
Tests the AlterOrderWithRespectTo operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alorwrtto", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AlterOrderWithRespectTo("Rider", "pony")
|
|
self.assertEqual(operation.describe(), "Set order_with_respect_to on Rider to pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alorwrtto", new_state)
|
|
self.assertEqual(project_state.models["test_alorwrtto", "rider"].options.get("order_with_respect_to", None), None)
|
|
self.assertEqual(new_state.models["test_alorwrtto", "rider"].options.get("order_with_respect_to", None), "pony")
|
|
# Make sure there's no matching index
|
|
self.assertColumnNotExists("test_alorwrtto_rider", "_order")
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alorwrtto", editor, project_state, new_state)
|
|
self.assertColumnExists("test_alorwrtto_rider", "_order")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alorwrtto", editor, new_state, project_state)
|
|
self.assertColumnNotExists("test_alorwrtto_rider", "_order")
|
|
|
|
def test_alter_fk(self):
|
|
"""
|
|
Tests that creating and then altering an FK works correctly
|
|
and deals with the pending SQL (#23091)
|
|
"""
|
|
project_state = self.set_up_test_model("test_alfk")
|
|
# Test adding and then altering the FK in one go
|
|
create_operation = migrations.CreateModel(
|
|
name="Rider",
|
|
fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pony", models.ForeignKey(to="Pony")),
|
|
],
|
|
)
|
|
create_state = project_state.clone()
|
|
create_operation.state_forwards("test_alfk", create_state)
|
|
alter_operation = migrations.AlterField(
|
|
model_name='Rider',
|
|
name='pony',
|
|
field=models.ForeignKey(editable=False, to="Pony"),
|
|
)
|
|
alter_state = create_state.clone()
|
|
alter_operation.state_forwards("test_alfk", alter_state)
|
|
with connection.schema_editor() as editor:
|
|
create_operation.database_forwards("test_alfk", editor, project_state, create_state)
|
|
alter_operation.database_forwards("test_alfk", editor, create_state, alter_state)
|
|
|
|
@unittest.skipIf(sqlparse is None and connection.features.requires_sqlparse_for_splitting, "Missing sqlparse")
|
|
def test_run_sql(self):
|
|
"""
|
|
Tests the RunSQL operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_runsql")
|
|
# Create the operation
|
|
operation = migrations.RunSQL(
|
|
# Use a multi-line string with a commment to test splitting on SQLite and MySQL respectively
|
|
"CREATE TABLE i_love_ponies (id int, special_thing int);\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (1, 42); -- this is magic!\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (2, 51);\n",
|
|
"DROP TABLE i_love_ponies",
|
|
state_operations=[migrations.CreateModel("SomethingElse", [("id", models.AutoField(primary_key=True))])],
|
|
)
|
|
self.assertEqual(operation.describe(), "Raw SQL operation")
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_runsql", new_state)
|
|
self.assertEqual(len(new_state.models["test_runsql", "somethingelse"].fields), 1)
|
|
# Make sure there's no table
|
|
self.assertTableNotExists("i_love_ponies")
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
self.assertTableExists("i_love_ponies")
|
|
# Make sure all the SQL was processed
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies")
|
|
self.assertEqual(cursor.fetchall()[0][0], 2)
|
|
# And test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_runsql", editor, new_state, project_state)
|
|
self.assertTableNotExists("i_love_ponies")
|
|
|
|
def test_run_python(self):
|
|
"""
|
|
Tests the RunPython operation
|
|
"""
|
|
|
|
project_state = self.set_up_test_model("test_runpython", mti_model=True)
|
|
|
|
# Create the operation
|
|
def inner_method(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
Pony.objects.create(pink=1, weight=3.55)
|
|
Pony.objects.create(weight=5)
|
|
|
|
def inner_method_reverse(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
Pony.objects.filter(pink=1, weight=3.55).delete()
|
|
Pony.objects.filter(weight=5).delete()
|
|
operation = migrations.RunPython(inner_method, reverse_code=inner_method_reverse)
|
|
self.assertEqual(operation.describe(), "Raw Python operation")
|
|
# Test the state alteration does nothing
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_runpython", new_state)
|
|
self.assertEqual(new_state, project_state)
|
|
# Test the database alteration
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 0)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 2)
|
|
# Now test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 0)
|
|
# Now test we can't use a string
|
|
with self.assertRaises(ValueError):
|
|
operation = migrations.RunPython("print 'ahahaha'")
|
|
|
|
# Also test reversal fails, with an operation identical to above but without reverse_code set
|
|
no_reverse_operation = migrations.RunPython(inner_method)
|
|
self.assertFalse(no_reverse_operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
no_reverse_operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
with self.assertRaises(NotImplementedError):
|
|
no_reverse_operation.database_backwards("test_runpython", editor, new_state, project_state)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 2)
|
|
|
|
def create_ponies(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
pony1 = Pony.objects.create(pink=1, weight=3.55)
|
|
self.assertIsNot(pony1.pk, None)
|
|
pony2 = Pony.objects.create(weight=5)
|
|
self.assertIsNot(pony2.pk, None)
|
|
self.assertNotEqual(pony1.pk, pony2.pk)
|
|
|
|
operation = migrations.RunPython(create_ponies)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 4)
|
|
|
|
def create_shetlandponies(models, schema_editor):
|
|
ShetlandPony = models.get_model("test_runpython", "ShetlandPony")
|
|
pony1 = ShetlandPony.objects.create(weight=4.0)
|
|
self.assertIsNot(pony1.pk, None)
|
|
pony2 = ShetlandPony.objects.create(weight=5.0)
|
|
self.assertIsNot(pony2.pk, None)
|
|
self.assertNotEqual(pony1.pk, pony2.pk)
|
|
|
|
operation = migrations.RunPython(create_shetlandponies)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "Pony").objects.count(), 6)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "ShetlandPony").objects.count(), 2)
|
|
|
|
def test_run_python_atomic(self):
|
|
"""
|
|
Tests the RunPython operation correctly handles the "atomic" keyword
|
|
"""
|
|
project_state = self.set_up_test_model("test_runpythonatomic", mti_model=True)
|
|
|
|
def inner_method(models, schema_editor):
|
|
Pony = models.get_model("test_runpythonatomic", "Pony")
|
|
Pony.objects.create(pink=1, weight=3.55)
|
|
raise ValueError("Adrian hates ponies.")
|
|
|
|
atomic_migration = Migration("test", "test_runpythonatomic")
|
|
atomic_migration.operations = [migrations.RunPython(inner_method)]
|
|
non_atomic_migration = Migration("test", "test_runpythonatomic")
|
|
non_atomic_migration.operations = [migrations.RunPython(inner_method, atomic=False)]
|
|
# If we're a fully-transactional database, both versions should rollback
|
|
if connection.features.can_rollback_ddl:
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
# Otherwise, the non-atomic operation should leave a row there
|
|
else:
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.render().get_model("test_runpythonatomic", "Pony").objects.count(), 1)
|
|
|
|
|
|
class MigrateNothingRouter(object):
|
|
"""
|
|
A router that sends all writes to the other database.
|
|
"""
|
|
def allow_migrate(self, db, model):
|
|
return False
|
|
|
|
|
|
class MultiDBOperationTests(MigrationTestBase):
|
|
multi_db = True
|
|
|
|
def setUp(self):
|
|
# Make the 'other' database appear to be a replica of the 'default'
|
|
self.old_routers = router.routers
|
|
router.routers = [MigrateNothingRouter()]
|
|
|
|
def tearDown(self):
|
|
# Restore the 'other' database as an independent database
|
|
router.routers = self.old_routers
|
|
|
|
def test_create_model(self):
|
|
"""
|
|
Tests that CreateModel honours multi-db settings.
|
|
"""
|
|
operation = migrations.CreateModel(
|
|
"Pony",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pink", models.IntegerField(default=1)),
|
|
],
|
|
)
|
|
# Test the state alteration
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_crmo", new_state)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_crmo", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_crmo", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
|
|
|
|
class SwappableOperationTests(OperationTestBase):
|
|
"""
|
|
Tests that key operations ignore swappable models
|
|
(we don't want to replicate all of them here, as the functionality
|
|
is in a common base class anyway)
|
|
"""
|
|
|
|
available_apps = [
|
|
"migrations",
|
|
"django.contrib.auth",
|
|
]
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_create_ignore_swapped(self):
|
|
"""
|
|
Tests that the CreateTable operation ignores swapped models.
|
|
"""
|
|
operation = migrations.CreateModel(
|
|
"Pony",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pink", models.IntegerField(default=1)),
|
|
],
|
|
options={
|
|
"swappable": "TEST_SWAP_MODEL",
|
|
},
|
|
)
|
|
# Test the state alteration (it should still be there!)
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_crigsw", new_state)
|
|
self.assertEqual(new_state.models["test_crigsw", "pony"].name, "Pony")
|
|
self.assertEqual(len(new_state.models["test_crigsw", "pony"].fields), 2)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_crigsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_crigsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_delete_ignore_swapped(self):
|
|
"""
|
|
Tests the DeleteModel operation ignores swapped models.
|
|
"""
|
|
operation = migrations.DeleteModel("Pony")
|
|
project_state, new_state = self.make_test_state("test_dligsw", operation)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_dligsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_dligsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_add_field_ignore_swapped(self):
|
|
"""
|
|
Tests the AddField operation.
|
|
"""
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=5),
|
|
)
|
|
project_state, new_state = self.make_test_state("test_adfligsw", operation)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_adfligsw_pont")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adfligsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_adfligsw_pont")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adfligsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_adfligsw_pont")
|