-class AddMessageSenderIndex < ActiveRecord::Migration
+class AddMessageSenderIndex < ActiveRecord::Migration[4.2]
def self.up
- add_index :messages, [:from_user_id], :name=> "messages_from_user_id_idx"
+ add_index :messages, [:from_user_id], :name => "messages_from_user_id_idx"
end
def self.down
- drop_index :messages, :name=> "messages_from_user_id_idx"
+ remove_index :messages, :name => "messages_from_user_id_idx"
end
end