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