gitlab-org--gitlab-foss/db/migrate/20190315191339_create_merge_request_assignees_table.rb

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# frozen_string_literal: true
class CreateMergeRequestAssigneesTable < ActiveRecord::Migration[5.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
INDEX_NAME = 'index_merge_request_assignees_on_merge_request_id_and_user_id'
def up
create_table :merge_request_assignees do |t|
t.references :user, foreign_key: { on_delete: :cascade }, index: true, null: false
t.references :merge_request, foreign_key: { on_delete: :cascade }, null: false
end
add_index :merge_request_assignees, [:merge_request_id, :user_id], unique: true, name: INDEX_NAME
end
def down
drop_table :merge_request_assignees
end
end