mark_as_read! :all for associations

[Frexuz]

class Conversation < ApplicationRecord
  has_many :messages, dependent: :destroy

  def read(user)
    # messages.unread_by(user).each { |message| message.mark_as_read! for: user }
    # or
    # messages.mark_as_read! :all, for: user
  end


class Message < ApplicationRecord
  acts_as_readable on: :created_at
  belongs_to :conversation, counter_cache: true
end

conversation.read(current_user)

1. The first example works (messages.unread_by(user).each), but it creates 1 record per resource+user (with 2 users per conversation, this table will be twice as long as the messages table).
2. mark_as_read! :all for associations doesn't seem to be supported, since it just <NULL>s the column in the database, to make the optimized version, and I can't know for which conversation I've read all messages. And therefore, the cleanup_read_marks also won't work ofc.

Is there a way around this? Or is it out-of-scope for this gem?

[ledermann]

Instead of handling Message as readable, you can use Conversation instead and touch the corresponding conversation if a message is added or updated. Consequence: Multiple new messages in one conversion will result in only one unread conversation.

Example:

class Conversation < ApplicationRecord
  acts_as_readable on: :updated_at

  has_many :messages, dependent: :destroy
end

class Message < ApplicationRecord
  belongs_to :conversation, counter_cache: true, touch: true
end

conversation = Conversation.last
conversation.mark_as_read! for: current_user

[Frexuz]

I was thinking that first, but then I can't get how many messages are read/unread :)

[Frexuz]

Or, maybe just query how many messages are created after the conversation's read timestamp? 🤔