gitlab-org--gitlab-foss/db/migrate/20161014173530_create_label_priorities.rb

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# rubocop:disable Migration/Timestamps
class CreateLabelPriorities < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
DOWNTIME = true
DOWNTIME_REASON = 'This migration adds foreign keys'
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disable_ddl_transaction!
def up
create_table :label_priorities do |t|
t.references :project, foreign_key: { on_delete: :cascade }, null: false
t.references :label, foreign_key: { on_delete: :cascade }, null: false
t.integer :priority, null: false
t.timestamps null: false
end
add_concurrent_index :label_priorities, [:project_id, :label_id], unique: true
add_concurrent_index :label_priorities, :priority
end
def down
drop_table :label_priorities
end
end