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# frozen_string_literal: true
# ActsAsWatchable
module Redmine
module Acts
module Watchable
def self.included(base)
base.extend ClassMethods
end
module ClassMethods
def acts_as_watchable(options = {})
return if self.included_modules.include?(Redmine::Acts::Watchable::InstanceMethods)
class_eval do
has_many :watchers, :as => :watchable, :dependent => :delete_all
has_many :watcher_users, :through => :watchers, :source => :user, :validate => false
scope :watched_by, lambda { |principal|
user_ids = Array(principal.id)
user_ids |= principal.group_ids if principal.is_a?(User)
user_ids.compact!
joins(:watchers).
where("#{Watcher.table_name}.user_id IN (?)", user_ids)
}
end
send :include, Redmine::Acts::Watchable::InstanceMethods
end
end
module InstanceMethods
def self.included(base)
base.extend ClassMethods
end
# Returns an array of users that are proposed as watchers
def addable_watcher_users
users = self.project.principals.assignable_watchers.sort - self.watcher_users
if respond_to?(:visible?)
users.reject! {|user| user.is_a?(User) && !visible?(user)}
end
users
end
# Adds user as a watcher
def add_watcher(user)
# Rails does not reset the has_many :through association
watcher_users.reset
self.watchers << Watcher.new(:user => user)
end
# Removes user from the watchers list
def remove_watcher(user)
return nil unless user && (user.is_a?(User) || user.is_a?(Group))
# Rails does not reset the has_many :through association
watcher_users.reset
watchers.where(:user_id => user.id).delete_all
end
# Adds/removes watcher
def set_watcher(user, watching=true)
watching ? add_watcher(user) : remove_watcher(user)
end
# Overrides watcher_user_ids= to make user_ids uniq
def watcher_user_ids=(user_ids)
if user_ids.is_a?(Array)
user_ids = user_ids.uniq
end
super user_ids
end
# Returns true if object is watched by +principal+, that is
# either by a given group,
# or by a given user or any of their groups
def watched_by?(principal)
return false unless principal
user_ids = Array(principal.id)
user_ids |= principal.group_ids if principal.is_a?(User)
user_ids.compact!
(self.watcher_user_ids & user_ids).any?
end
def notified_watchers
notified = watcher_users.active.to_a
notified = notified.map {|n| n.is_a?(Group) ? n.users.active : n}.flatten
notified.uniq!
notified.reject! {|user| user.mail.blank? || user.mail_notification == 'none'}
if respond_to?(:visible?)
notified.reject! {|user| !visible?(user)}
end
notified
end
# Returns an array of watchers' email addresses
def watcher_recipients
notified_watchers.collect(&:mail)
end
module ClassMethods; end
end
end
end
end