discourse/db/migrate/20190418113814_add_unique_i...

Failed to ignore revisions in .git-blame-ignore-revs.

9 lines
309 B
Ruby
Raw Normal View History

# frozen_string_literal: true
class AddUniqueIndexToGroupRequests < ActiveRecord::Migration[5.2]
def change
execute "DELETE FROM group_requests WHERE id NOT IN (SELECT MIN(id) FROM group_requests GROUP BY group_id, user_id)"
add_index :group_requests, [:group_id, :user_id], unique: true
end
end