1 files changed, 2 insertions, 18 deletions
diff --git a/db/migrate/20180305095250_create_internal_ids_table.rb b/db/migrate/20180305095250_create_internal_ids_table.rb
index d2e79a12c0a..e972432fb98 100644
--- a/db/migrate/20180305095250_create_internal_ids_table.rb
+++ b/db/migrate/20180305095250_create_internal_ids_table.rb
@@ -3,33 +3,17 @@ class CreateInternalIdsTable < ActiveRecord::Migration
 
   DOWNTIME = false
 
-  disable_ddl_transaction!
-
   def up
     create_table :internal_ids, id: :bigserial do |t|
-      t.references :project
+      t.references :project, null: false, foreign_key: { on_delete: :cascade }
       t.integer :usage, null: false
       t.integer :last_value, null: false
-    end
-
-    unless index_exists?(:internal_ids, [:usage, :project_id])
-      add_index :internal_ids, [:usage, :project_id], unique: true
-    end
 
-    unless foreign_key_exists?(:internal_ids, :project_id)
-      add_concurrent_foreign_key :internal_ids, :projects, column: :project_id, on_delete: :cascade
+      t.index [:usage, :project_id], unique: true
     end
   end
 
   def down
     drop_table :internal_ids
   end
-
-  private
-
-  def foreign_key_exists?(table, column)
-    foreign_keys(table).any? do |key|
-      key.options[:column] == column.to_s
-    end
-  end
 end