Class: CreateSubRelation

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/generators/subscribable/templates/sub_relation_migration.rb

Instance Method Summary collapse

Instance Method Details

#change ⇒ Object 



2
3
4
5
6
7
8
9
10
11
12
13
 
# File 'lib/generators/subscribable/templates/sub_relation_migration.rb', line 2

def change
  create_table :sub_relations do |t|
    t.references :subscription, polymorphic: true
    t.references :subscriber, polymorphic: true
    t.timestamps
  end

  add_index :sub_relations,
    [:subscriber_id, :subscriber_type, :subscription_id, :subscription_type],
    unique: true,
    name: 'composite_subscribable_index'
end