discourse/plugins/chat/app/models/chat_thread.rb

# frozen_string_literal: true

class ChatThread < ActiveRecord::Base
  EXCERPT_LENGTH = 150

  belongs_to :channel, foreign_key: "channel_id", class_name: "ChatChannel"
  belongs_to :original_message_user, foreign_key: "original_message_user_id", class_name: "User"
  belongs_to :original_message, foreign_key: "original_message_id", class_name: "ChatMessage"

  has_many :chat_messages,
           -> { order("chat_messages.created_at ASC, chat_messages.id ASC") },
           foreign_key: :thread_id,
           primary_key: :id

  enum :status, { open: 0, read_only: 1, closed: 2, archived: 3 }, scopes: false

  def url
    "#{channel.url}/t/#{self.id}"
  end

  def relative_url
    "#{channel.relative_url}/t/#{self.id}"
  end

  def excerpt
    original_message.excerpt(max_length: EXCERPT_LENGTH)
  end
end

# == Schema Information
#
# Table name: chat_threads
#
#  id                       :bigint           not null, primary key
#  channel_id               :integer          not null
#  original_message_id      :integer          not null
#  original_message_user_id :integer          not null
#  status                   :integer          default("open"), not null
#  title                    :string
#  created_at               :datetime         not null
#  updated_at               :datetime         not null
#
# Indexes
#
#  index_chat_threads_on_channel_id                (channel_id)
#  index_chat_threads_on_channel_id_and_status     (channel_id,status)
#  index_chat_threads_on_original_message_id       (original_message_id)
#  index_chat_threads_on_original_message_user_id  (original_message_user_id)
#  index_chat_threads_on_status                    (status)
#