24 lines
1.2 KiB
Ruby
24 lines
1.2 KiB
Ruby
class ExtendNotificationPoliciesIndex < ActiveRecord::Migration[4.2]
|
|
tag :postdeploy
|
|
disable_ddl_transaction!
|
|
|
|
def up
|
|
NotificationPolicy.select([:communication_channel_id, :notification_id]).
|
|
group(:communication_channel_id, :notification_id).
|
|
having("COUNT(*) > 1").find_each do |policy|
|
|
scope = NotificationPolicy.where(communication_channel_id: policy.communication_channel_id, notification_id: policy.notification_id)
|
|
keeper = scope.order(:created_at).first
|
|
to_delete_scope = scope.where("id<>?", keeper)
|
|
DelayedMessage.where(notification_policy_id: to_delete_scope).update_all(notification_policy_id: keeper.id)
|
|
to_delete_scope.delete_all
|
|
end
|
|
add_index :notification_policies, [:communication_channel_id, :notification_id], unique: true, algorithm: :concurrently, name: 'index_notification_policies_on_cc_and_notification_id'
|
|
remove_index :notification_policies, :communication_channel_id
|
|
end
|
|
|
|
def down
|
|
add_index :notification_policies, :communication_channel_id, algorithm: :concurrently
|
|
remove_index :notification_policies, name: 'index_notification_policies_on_cc_and_notification_id'
|
|
end
|
|
end
|