16 lines
380 B
Ruby
16 lines
380 B
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
class AddUniqueIndexToInvitedGroups < ActiveRecord::Migration[6.0]
|
||
|
|
def change
|
||
|
|
execute <<~SQL
|
||
|
|
DELETE FROM invited_groups a
|
||
|
|
USING invited_groups b
|
||
|
|
WHERE a.id < b.id
|
||
|
|
AND a.invite_id = b.invite_id
|
||
|
|
AND a.group_id = b.group_id
|
||
|
|
SQL
|
||
|
|
|
||
|
|
add_index :invited_groups, [:group_id, :invite_id], unique: true
|
||
|
|
end
|
||
|
|
end
|