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# Redmine - project management software

# Copyright (C) 2006-2014  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 Document < ActiveRecord::Base

  include Redmine::SafeAttributes

  belongs_to :project

  belongs_to :category, :class_name => "DocumentCategory", :foreign_key => "category_id"

  acts_as_attachable :delete_permission => :delete_documents

  acts_as_searchable :columns => ['title', "#{table_name}.description"], :include => :project

  acts_as_event :title => Proc.new {|o| "#{l(:label_document)}: #{o.title}"},

                :author => Proc.new {|o| o.attachments.reorder("#{Attachment.table_name}.created_on ASC").first.try(:author) },

                :url => Proc.new {|o| {:controller => 'documents', :action => 'show', :id => o.id}}

  acts_as_activity_provider :find_options => {:include => :project}

  validates_presence_of :project, :title, :category

  validates_length_of :title, :maximum => 60

  after_create :send_notification

  scope :visible, lambda {|*args|

    includes(:project).where(Project.allowed_to_condition(args.shift || User.current, :view_documents, *args))

  }

  safe_attributes 'category_id', 'title', 'description'

  def visible?(user=User.current)

    !user.nil? && user.allowed_to?(:view_documents, project)

  end

  def initialize(attributes=nil, *args)

    super

    if new_record?

      self.category ||= DocumentCategory.default

    end

  end

  def updated_on

    unless @updated_on

      a = attachments.last

      @updated_on = (a && a.created_on) || created_on

    end

    @updated_on

  end

  private

  def send_notification

    if Setting.notified_events.include?('document_added')

      Mailer.document_added(self).deliver

    end

  end

end