socialforge/app/models/news.rb

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# Redmine - project management software
# Copyright (C) 2006-2013 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class News < ActiveRecord::Base
include Redmine::SafeAttributes
belongs_to :project
include ApplicationHelper
has_many_kindeditor_assets :assets, :dependent => :destroy
#added by nwb
belongs_to :course
belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
has_many :comments, :as => :commented, :dependent => :delete_all, :order => "created_on"
# fq
has_many :acts, :class_name => 'Activity', :as => :act, :dependent => :destroy
# 被ForgeActivity虚拟关联
has_many :forge_acts, :class_name => 'ForgeActivity',:as =>:forge_act ,:dependent => :destroy
# end
validates_presence_of :title, :description
validates_length_of :title, :maximum => 60
validates_length_of :summary, :maximum => 255
validates_length_of :description, :maximum => 10000
acts_as_attachable :delete_permission => :manage_news
acts_as_searchable :columns => ['title', 'summary', "#{table_name}.description"], :include => :project
acts_as_event :url => Proc.new {|o| {:controller => 'news', :action => 'show', :id => o.id}}
acts_as_activity_provider :find_options => {:include => [:project, :author]},
:author_key => :author_id
#added by nwb
#课程新闻独立于项目
acts_as_activity_provider :type => 'course_news',
:find_options => {:include => [:course, :author]},
:author_key => :author_id
acts_as_watchable
after_create :act_as_activity,:act_as_forge_activity,:add_author_as_watcher, :send_mail
after_destroy :delete_kindeditor_assets
scope :visible, lambda {|*args|
includes(:project).where(Project.allowed_to_condition(args.shift || User.current, :view_news, *args))
}
scope :course_visible, lambda {|*args|
includes(:course).where(Course.allowed_to_condition(args.shift || User.current, :view_course_news, *args))
}
safe_attributes 'title', 'summary', 'description'
def visible?(user=User.current)
!user.nil? && user.allowed_to?(:view_news, project)
end
# Returns true if the news can be commented by user
def commentable?(user=User.current)
user.allowed_to?(:comment_news, project)
end
def recipients
project.users.select {|user| user.notify_about?(self)}.map(&:mail)
end
# returns latest news for projects visible by user
def self.latest(user = User.current, count = 5)
visible(user).includes([:author, :project]).order("#{News.table_name}.created_on DESC").limit(count).all
end
# 新闻的短描述信息
def short_description(length = 255)
description.gsub(/<\/?.*?>/,"").html_safe if description
#description.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if description
#description
end
private
def add_author_as_watcher
Watcher.create(:watchable => self, :user => author)
end
## fq
def act_as_activity
self.acts << Activity.new(:user_id => self.author_id)
end
# Time 2015-02-27 15:48:17
# Author lizanle
# Description 公用表中也要记录
def act_as_forge_activity
# 如果是project为空那么是课程相关的不需要保存
if !self.project.nil?
self.forge_acts << ForgeActivity.new(:user_id => self.author_id,
:project_id => self.project.id)
end
end
# Time 2015-03-31 13:50:54
# Author lizanle
# Description 删除news后删除对应的资源
def delete_kindeditor_assets
delete_kindeditor_assets_from_disk self.id,OwnerTypeHelper::NEWS
end
def send_mail
Mailer.run.news_added(self) if Setting.notified_events.include?('news_added')
end
end