diff .svn/pristine/80/805a8b03f317de442787ef8a23fd231ec228a620.svn-base @ 926:b73a59a6acbd luisf

Merge from cannam_integration

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.svn/pristine/80/805a8b03f317de442787ef8a23fd231ec228a620.svn-base	Fri May 11 16:10:11 2012 +0100
@@ -0,0 +1,77 @@
+# 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)          
+          send :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
+            
+            named_scope :watched_by, lambda { |user_id|
+              { :include => :watchers,
+                :conditions => ["#{Watcher.table_name}.user_id = ?", user_id] }
+            }
+            attr_protected :watcher_ids, :watcher_user_ids
+          end
+        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.users.sort - self.watcher_users
+          if respond_to?(:visible?)
+            users.reject! {|user| !visible?(user)}
+          end
+          users
+        end
+        
+        # Adds user as a watcher
+        def add_watcher(user)
+          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)
+          Watcher.delete_all "watchable_type = '#{self.class}' AND watchable_id = #{self.id} AND user_id = #{user.id}"
+        end
+        
+        # Adds/removes watcher
+        def set_watcher(user, watching=true)
+          watching ? add_watcher(user) : remove_watcher(user)
+        end
+        
+        # Returns true if object is watched by +user+
+        def watched_by?(user)
+          !!(user && self.watcher_user_ids.detect {|uid| uid == user.id })
+        end
+        
+        # Returns an array of watchers' email addresses
+        def watcher_recipients
+          notified = watcher_users.active
+          notified.reject! {|user| user.mail_notification == 'none'}
+          
+          if respond_to?(:visible?)
+            notified.reject! {|user| !visible?(user)}
+          end
+          notified.collect(&:mail).compact
+        end
+
+        module ClassMethods; end
+      end
+    end
+  end
+end