# Copyright 2008-2010 Universidad Politécnica de Madrid and Agora Systems S.A.
#
# This file is part of VCC (Virtual Conference Center).
#
# VCC is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# VCC 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with VCC.  If not, see <http://www.gnu.org/licenses/>.

# Require Station Model
require_dependency "#{ Rails.root.to_s }/vendor/plugins/station/app/models/tag"

class Tag
  def self.cloud(args = {})
    find(:all, :select => 'tags.* ,count(*) as popularity',
    :limit => args[:limit] || 30,
    :joins => "JOIN taggings ON taggings.tag_id = tags.id",
    :conditions => args[:conditions],
    :group => "taggings.tag_id",
    :order => "id")
  end
end