Merge pull request #25307 from kamipo/extract_foreign_key_action_from_information_schema

Extract foreign key action from `information_schema`

3 files changed, 29 insertions, 19 deletions

diff --git a/activerecord/test/cases/adapters/mysql2/schema_test.rb b/activerecord/test/cases/adapters/mysql2/schema_test.rb
index 43957791b1..57ea8258d1 100644
--- a/activerecord/test/cases/adapters/mysql2/schema_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/schema_test.rb
@@ -103,3 +103,24 @@ module ActiveRecord
     end
   end
 end
+
+class Mysql2AnsiQuotesTest < ActiveRecord::Mysql2TestCase
+  def setup
+    @connection = ActiveRecord::Base.connection
+    @connection.execute("SET SESSION sql_mode='ANSI_QUOTES'")
+  end
+
+  def teardown
+    @connection.reconnect!
+  end
+
+  def test_primary_key_method_with_ansi_quotes
+    assert_equal "id", @connection.primary_key("topics")
+  end
+
+  def test_foreign_keys_method_with_ansi_quotes
+    fks = @connection.foreign_keys("lessons_students")
+    assert_equal([["lessons_students", "students", :cascade]],
+                 fks.map {|fk| [fk.from_table, fk.to_table, fk.on_delete] })
+  end
+end
diff --git a/activerecord/test/cases/primary_keys_test.rb b/activerecord/test/cases/primary_keys_test.rb
index 52eac4a124..6c8532cf00 100644
--- a/activerecord/test/cases/primary_keys_test.rb
+++ b/activerecord/test/cases/primary_keys_test.rb
@@ -275,18 +275,6 @@ class CompositePrimaryKeyTest < ActiveRecord::TestCase
 end
 
 if current_adapter?(:Mysql2Adapter)
-  class PrimaryKeyWithAnsiQuotesTest < ActiveRecord::TestCase
-    self.use_transactional_tests = false
-
-    def test_primary_key_method_with_ansi_quotes
-      con = ActiveRecord::Base.connection
-      con.execute("SET SESSION sql_mode='ANSI_QUOTES'")
-      assert_equal "id", con.primary_key("topics")
-    ensure
-      con.reconnect!
-    end
-  end
-
   class PrimaryKeyBigintNilDefaultTest < ActiveRecord::TestCase
     include SchemaDumpingHelper
 
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index 628a59c2e3..2f2993ce18 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -409,6 +409,14 @@ ActiveRecord::Schema.define do
     t.references :student
   end
 
+  create_table :students, force: true do |t|
+    t.string :name
+    t.boolean :active
+    t.integer :college_id
+  end
+
+  add_foreign_key :lessons_students, :students, on_delete: :cascade
+
   create_table :lint_models, force: true
 
   create_table :line_items, force: true do |t|
@@ -777,12 +785,6 @@ ActiveRecord::Schema.define do
     t.integer    :lock_version, null: false, default: 0
   end
 
-  create_table :students, force: true do |t|
-    t.string :name
-    t.boolean :active
-    t.integer :college_id
-  end
-
   create_table :subscribers, force: true, id: false do |t|
     t.string :nick, null: false
     t.string :name
@@ -1002,7 +1004,6 @@ ActiveRecord::Schema.define do
     end
 
     add_foreign_key :fk_test_has_fk, :fk_test_has_pk, column: "fk_id", name: "fk_name", primary_key: "pk_id"
-    add_foreign_key :lessons_students, :students
   end
 
   create_table :overloaded_types, force: true do |t|