#Gocha#

<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.

/** Configurable Reports
  * A Moodle block for creating customizable reports
  * @package blocks
  * @author: Juan leyva <http://www.twitter.com/jleyvadelgado>
  * @date: 2009
  */

require_once($CFG->dirroot.'/blocks/configurable_reports/plugin.class.php');

class plugin_categoryfieldorder extends plugin_base{
	
	var $sql = true;
	
	function init(){
		$this->fullname = get_string('categoryfield','block_configurable_reports');		
		$this->form = true;
		$this->unique = true;
		$this->reporttypes = array('categories');
		$this->sql = true;
	}
	
	function summary($data){
		return $data->column.' '.(strtoupper($data->direction));
	}
	
	// data -> Plugin configuration data
	function execute($data){
		global $DB, $CFG;
		
		if($data->direction == 'asc' || $data->direction == 'desc'){
			$direction = strtoupper($data->direction);
			$columns = $DB->get_columns('course_categories');
		
			$categorycolumns = array();
			foreach($columns as $c)
				$categorycolumns[$c->name] = $c->name;
				
			if(isset($categorycolumns[$data->column])){
				return $data->column.' '.$direction;
			}
		}
		
		return '';
	}
}