Exercise HABTM fixtures with foreign key constraints

activerecord/test/models/parrot.rb

@@ -20,6 +20,12 @@ def cancel_save_callback_method
   def increment_updated_count
     self.updated_count += 1
   end
+
+  def self.delete_all(*)
+    connection.delete("DELETE FROM parrots_pirates")
+    connection.delete("DELETE FROM parrots_treasures")
+    super
+  end
 end
 
 class LiveParrot < Parrot

activerecord/test/schema/schema.rb

@@ -601,33 +601,55 @@
     t.integer :non_poly_two_id
   end
 
-  create_table :parrots, force: true do |t|
-    t.column :name, :string
-    t.column :color, :string
-    t.column :parrot_sti_class, :string
-    t.column :killer_id, :integer
-    t.column :updated_count, :integer, default: 0
-    if subsecond_precision_supported?
-      t.column :created_at, :datetime, precision: 0
-      t.column :created_on, :datetime, precision: 0
-      t.column :updated_at, :datetime, precision: 0
-      t.column :updated_on, :datetime, precision: 0
-    else
-      t.column :created_at, :datetime
-      t.column :created_on, :datetime
-      t.column :updated_at, :datetime
-      t.column :updated_on, :datetime
+  disable_referential_integrity do
+    create_table :parrots, force: :cascade do |t|
+      t.string :name
+      t.string :color
+      t.string :parrot_sti_class
+      t.integer :killer_id
+      t.integer :updated_count, :integer, default: 0
+      if subsecond_precision_supported?
+        t.datetime :created_at, precision: 0
+        t.datetime :created_on, precision: 0
+        t.datetime :updated_at, precision: 0
+        t.datetime :updated_on, precision: 0
+      else
+        t.datetime :created_at
+        t.datetime :created_on
+        t.datetime :updated_at
+        t.datetime :updated_on
+      end
     end
-  end
 
-  create_table :parrots_pirates, id: false, force: true do |t|
-    t.column :parrot_id, :integer
-    t.column :pirate_id, :integer
-  end
+    create_table :pirates, force: :cascade do |t|
+      t.string :catchphrase
+      t.integer :parrot_id
+      t.integer :non_validated_parrot_id
+      if subsecond_precision_supported?
+        t.datetime :created_on, precision: 6
+        t.datetime :updated_on, precision: 6
+      else
+        t.datetime :created_on
+        t.datetime :updated_on
+      end
+    end
 
-  create_table :parrots_treasures, id: false, force: true do |t|
-    t.column :parrot_id, :integer
-    t.column :treasure_id, :integer
+    create_table :treasures, force: :cascade do |t|
+      t.string :name
+      t.string :type
+      t.references :looter, polymorphic: true
+      t.references :ship
+    end
+
+    create_table :parrots_pirates, id: false, force: true do |t|
+      t.references :parrot, foreign_key: true
+      t.references :pirate, foreign_key: true
+    end
+
+    create_table :parrots_treasures, id: false, force: true do |t|
+      t.references :parrot, foreign_key: true
+      t.references :treasure, foreign_key: true
+    end
   end
 
   create_table :people, force: true do |t|
@@ -673,19 +695,6 @@
     t.column :rainbow_color, :string
   end
 
-  create_table :pirates, force: true do |t|
-    t.column :catchphrase, :string
-    t.column :parrot_id, :integer
-    t.integer :non_validated_parrot_id
-    if subsecond_precision_supported?
-      t.column :created_on, :datetime, precision: 6
-      t.column :updated_on, :datetime, precision: 6
-    else
-      t.column :created_on, :datetime
-      t.column :updated_on, :datetime
-    end
-  end
-
   create_table :posts, force: true do |t|
     t.references :author
     t.string :title, null: false
@@ -916,14 +925,6 @@
     t.datetime :updated_at
   end
 
-  create_table :treasures, force: true do |t|
-    t.column :name, :string
-    t.column :type, :string
-    t.column :looter_id, :integer
-    t.column :looter_type, :string
-    t.belongs_to :ship
-  end
-
   create_table :tuning_pegs, force: true do |t|
     t.integer :guitar_id
     t.float :pitch