Chris@0: # Redmine - project management software
Chris@0: # Copyright (C) 2006-2008  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: module Redmine
Chris@0:   module Acts
Chris@0:     module Attachable
Chris@0:       def self.included(base)
Chris@0:         base.extend ClassMethods
Chris@0:       end
Chris@0: 
Chris@0:       module ClassMethods
Chris@0:         def acts_as_attachable(options = {})
Chris@0:           cattr_accessor :attachable_options
Chris@0:           self.attachable_options = {}
Chris@0:           attachable_options[:view_permission] = options.delete(:view_permission) || "view_#{self.name.pluralize.underscore}".to_sym
Chris@0:           attachable_options[:delete_permission] = options.delete(:delete_permission) || "edit_#{self.name.pluralize.underscore}".to_sym
Chris@0:           
Chris@0:           has_many :attachments, options.merge(:as => :container,
Chris@0:                                                :order => "#{Attachment.table_name}.created_on",
Chris@0:                                                :dependent => :destroy)
Chris@0:           attr_accessor :unsaved_attachments
Chris@0:           after_initialize :initialize_unsaved_attachments
Chris@0:           send :include, Redmine::Acts::Attachable::InstanceMethods
Chris@0:         end
Chris@0:       end
Chris@0: 
Chris@0:       module InstanceMethods
Chris@0:         def self.included(base)
Chris@0:           base.extend ClassMethods
Chris@0:         end
Chris@0:         
Chris@0:         def attachments_visible?(user=User.current)
Chris@0:           user.allowed_to?(self.class.attachable_options[:view_permission], self.project)
Chris@0:         end
Chris@0:         
Chris@0:         def attachments_deletable?(user=User.current)
Chris@0:           user.allowed_to?(self.class.attachable_options[:delete_permission], self.project)
Chris@0:         end
Chris@0: 
Chris@0:         def initialize_unsaved_attachments
Chris@0:           @unsaved_attachments ||= []
Chris@0:         end
Chris@0: 
Chris@0:         module ClassMethods
Chris@0:         end
Chris@0:       end
Chris@0:     end
Chris@0:   end
Chris@0: end