List

A list of subscribers, i.e. a newsletter. It uses a specific Message Stream to send messages through Postmark.

Columns

Column	Type	Notes
name	string	required
sender_id	bigint	default sender, required
postmark_message_stream_id	string	Postmark Message Stream used to send messages
subscriptions_count	integer	counter cache, default 0
messages_count	integer	counter cache, default 0
last_message_sent_at	timestamp

Associations

• belongs_to :sender → Sender
• has_many :subscriptions, dependent: :destroy → Subscription
• has_many :subscribers, through: :subscriptions → Subscriber
• has_many :messages, dependent: :destroy → Message

Validations

• name presence
• sender presence (required belongs_to)

TIP

subscriptions_count and subscribers include suppressed subscriptions. Use list.subscriptions.not_suppressed for active ones.