socialforge/app/models/open_source_project.rb

class OpenSourceProject < ActiveRecord::Base
  attr_accessible :String
  
  include Redmine::SafeAttributes
  has_many :topics, :class_name => 'RelativeMemo', :foreign_key => 'osp_id', :conditions => "#{RelativeMemo.table_name}.parent_id IS NULL", :order => "#{RelativeMemo.table_name}.created_at DESC", :dependent => :destroy
  has_many :relative_memos, :dependent => :destroy
  has_many :tags, :through => :project_tags, :class_name => 'Tag'
  has_many :project_tags, :class_name => 'ProjectTags'
  acts_as_taggable 
  def short_description(length = 255)
    description.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if description
  end
  
  def reset_counters!
    self.class.reset_counters!(id)
  end
  
  def self.reset_counters!(id)
    osp_id = id.to_i
    update_all("topic_count = (SELECT COUNT(*) FROM #{RelativeMemo.table_name} WHERE osp_id=#{osp_id} AND parent_id IS NULL)," +
     " memo_count = (SELECT COUNT(*) FROM #{RelativeMemo.table_name} WHERE osp_id=#{osp_id} AND parent_id IS NOT NULL)," +
     " last_memo_id = (SELECT MAX(id) FROM #{RelativeMemo.table_name} WHERE osp_id=#{osp_id})",
     ["id = ?", osp_id])
  end 
end