添加一张连接表relative_memo_to_open_source_projects

app/models/relative_memo.rb

@@ -12,7 +12,7 @@ class RelativeMemo < ActiveRecord::Base
   acts_as_taggable 
   acts_as_attachable
 
-  validates_presence_of :osp_id, :subject
+  validates_presence_of :subject
   #validates :content, presence: true
   # validates_length_of :subject, maximum: 50
   #validates_length_of :content, maximum: 3072

app/models/relative_memo_to_open_source_project.rb

@@ -0,0 +1,3 @@
+class RelativeMemoToOpenSourceProject < ActiveRecord::Base
+  # attr_accessible :title, :body
+end

db/migrate/20140515013449_add_author_to_relative_memo.rb

@@ -2,6 +2,6 @@ class AddAuthorToRelativeMemo < ActiveRecord::Migration
   def change
     add_column :relative_memos, :username, :string
     add_column :relative_memos, :userhomeurl, :string
-    add_column :relative_memos, :date_collected, :datetime
+    add_column :relative_memos, :date_collected, :date
   end
 end

db/migrate/20140516031200_create_relative_memo_to_open_source_projects.rb

@@ -0,0 +1,10 @@
+class CreateRelativeMemoToOpenSourceProjects < ActiveRecord::Migration
+  def change
+    create_table :relative_memo_to_open_source_projects do |t|
+      t.integer :osp_id
+      t.integer :relative_memo_id
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20140513073801) do
+ActiveRecord::Schema.define(:version => 20140516031200) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -52,14 +52,11 @@ ActiveRecord::Schema.define(:version => 20140513073801) do
   add_index "attachments", ["container_id", "container_type"], :name => "index_attachments_on_container_id_and_container_type"
   add_index "attachments", ["created_on"], :name => "index_attachments_on_created_on"
 
-  create_table "attachmentstypes", :id => false, :force => true do |t|
-    t.integer "id",                     :null => false
-    t.integer "typeId"
+  create_table "attachmentstypes", :force => true do |t|
+    t.integer "typeId",                 :null => false
     t.string  "typeName", :limit => 50
   end
 
-  add_index "attachmentstypes", ["id"], :name => "id"
-
   create_table "auth_sources", :force => true do |t|
     t.string  "type",              :limit => 30, :default => "",    :null => false
     t.string  "name",              :limit => 60, :default => "",    :null => false
@@ -652,6 +649,13 @@ ActiveRecord::Schema.define(:version => 20140513073801) do
   add_index "queries", ["project_id"], :name => "index_queries_on_project_id"
   add_index "queries", ["user_id"], :name => "index_queries_on_user_id"
 
+  create_table "relative_memo_to_open_source_projects", :force => true do |t|
+    t.integer  "osp_id"
+    t.integer  "relative_memo_id"
+    t.datetime "created_at",       :null => false
+    t.datetime "updated_at",       :null => false
+  end
+
   create_table "relative_memos", :force => true do |t|
     t.integer  "osp_id",                                :null => false
     t.integer  "parent_id"
@@ -668,6 +672,9 @@ ActiveRecord::Schema.define(:version => 20140513073801) do
     t.integer  "viewed_count_crawl", :default => 0
     t.integer  "viewed_count_local", :default => 0
     t.string   "url"
+    t.string   "username"
+    t.string   "userhomeurl"
+    t.date     "date_collected"
   end
 
   create_table "repositories", :force => true do |t|
@@ -740,7 +747,6 @@ ActiveRecord::Schema.define(:version => 20140513073801) do
     t.datetime "updated_at", :null => false
     t.integer  "project_id"
     t.integer  "user_id"
-    t.string   "description"
   end
 
   create_table "softapplications", :force => true do |t|
@@ -843,8 +849,8 @@ ActiveRecord::Schema.define(:version => 20140513073801) do
     t.integer  "zip_code"
     t.datetime "created_at",         :null => false
     t.datetime "updated_at",         :null => false
-    t.string   "technical_title"
     t.integer  "identity"
+    t.string   "technical_title"
     t.string   "student_id"
     t.string   "teacher_realname"
     t.string   "student_realname"

test/fixtures/relative_memo_to_open_source_projects.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/Fixtures.html
+
+# This model initially had no columns defined.  If you add columns to the
+# model remove the '{}' from the fixture names and add the columns immediately
+# below each fixture, per the syntax in the comments below
+#
+one: {}
+# column: value
+#
+two: {}
+#  column: value

test/unit/relative_memo_to_open_source_project_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class RelativeMemoToOpenSourceProjectTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end