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Diffstat (limited to 'app/models/discussion.rb')
| -rw-r--r-- | app/models/discussion.rb | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/app/models/discussion.rb b/app/models/discussion.rb new file mode 100644 index 0000000..474ad00 --- /dev/null +++ b/app/models/discussion.rb @@ -0,0 +1,118 @@ + +class Discussion < ActiveRecord::Base + attr_accessor :recipient_tokens, :recipient_ids + attr_reader :recipient_ids + + # paginates_per 10 + + # создатель + has_many :messages, :dependent => :destroy + + # участники + has_many :speakers, :dependent => :destroy + has_many :users, :through => :speakers + + # отметки о прочтении юзеров + # has_many :views, :dependent => :destroy, :class_name => "DiscussionView" + + # жутко неоптимизированная часть, возможны баги + # scope :unread_for, lambda { |user_or_user_id| joins(:views, :speakers).where("discussions.updated_at >= discussion_views.updated_at AND speakers.user_id = ?", user_or_user_id.is_a?(User) ? user_or_user_id.id : user_or_user_id ) } + + accepts_nested_attributes_for :messages + + validate :check_that_has_at_least_two_users # не даем создать дискуссию, у которой нет получателей + + # добавляем записи об указанных собеседников + after_save(:on => :create) do + Rails.logger.info("Repicients ids: #{recipient_ids.inspect}") + + if recipient_ids.kind_of?(Array) + recipient_ids.uniq! + recipient_ids.each do |id| + recipient = User.find(id) + add_speaker(recipient) if recipient + end + end + end + + def recipient_tokens=(ids) + self.recipient_ids = ids + end + + def add_recipient_token id + self.recipient_ids << id if self.recipient_ids + end + + def add_speaker(user) + raise ArgumentError, "You can add speaker only to existing Discussion. Save your the Discussion object firstly" if new_record? + Speaker.create(:discussion => self, :user => user) + end + + def remove_speaker(user) + speaker = find_speaker_by_user(user) + speaker.destroy if speaker + end + + def user_invited_at(user) + speaker = find_speaker_by_user(user) + speaker.created_at + end + + def can_participate?(user) + speaker = find_speaker_by_user(user) + speaker ? true : false + end + + # проверяет, есть ли уже беседа между пользователями + # TODO вынести в отдельный метод а в этом возращать true/false, а то неправославно как-то + def self.find_between_users(user, user2) + res = nil + discussions = self.joins(:speakers).includes(:users).where("speakers.user_id = ?", user.id) + Rails.logger.info "Searching for ids: #{user.id}, #{user2.id}" + discussions.each do |discussion| + + res = discussion if discussion.private? && ((discussion.users.first == user && discussion.users.last == user2) || (discussion.users.first == user2 && discussion.users.last == user)) + Rails.logger.info "Searching for ids: #{discussion.users.inspect}" if discussion.private? + end + res + end + + # приватная/групповая + def private? + self.users.size <= 2 + end + + # дата последнего сообщения в дискуссии + def last_message_at + self.messages.last ? self.messages.last.created_at : nil + end + + # проверка, является ли дискуссия непрочитанной для пользователя + # def unread_for?(user) + # flag = self.views.find_by_user_id(user.id) + # if flag + # self.updated_at >= flag.updated_at + # else + # true + # end + # end + + # пометить как прочитанная + def mark_as_read_for(user) + true + # flag = DiscussionView.find_or_create_by_user_id_and_discussion_id(user.id, self.id) + # flag.touch + end + + private + + def find_speaker_by_user user + Speaker.find_by_discussion_id_and_user_id!(self.id, user.id) + end + + def check_that_has_at_least_two_users + Rails.logger.info self.recipient_ids + errors.add :recipient_tokens, "Укажите хотя бы одного получателя" #if !self.recipient_ids || self.recipient_ids.size < 2 + end + +end
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