class CreateSubRelation

Public Instance Methods

change() click to toggle source

# 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