Subscription

The relation between a subscriber and a list. Unsubscribing suppresses the subscription instead of destroying it.

Columns

Column	Type	Notes
subscriber_id	bigint	required
list_id	bigint	required
suppressed_at	timestamp	see Suppressible
suppression_reason	integer	enum, see Suppressible

Unique index on [subscriber_id, list_id].

Included concerns

Suppressible

Associations

• belongs_to :subscriber
• belongs_to :list, counter_cache: :subscriptions_count

Validations

• list uniqueness per subscriber ("should be subscribed once per subscriber")