#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_coursemodules extends plugin_base{

function init(){
		$this->form = false;
		$this->unique = true;
		$this->fullname = get_string('filtercoursemodules','block_configurable_reports');
		$this->reporttypes = array('courses','sql');
	}

function summary($data){
		return get_string('filtercoursemodules_summary','block_configurable_reports');
	}

function execute($finalelements, $data) {
        global $remoteDB;

$filter_coursemoduleid = optional_param('filter_coursemodules',0,PARAM_INT);
		if(!$filter_coursemoduleid)
			return $finalelements;

if ($this->report->type != 'sql') {
				return array($filter_coursemoduleid);
		} else {
			if (preg_match("/%%FILTER_COURSEMODULEID:([^%]+)%%/i",$finalelements, $output)) {
				$replace = ' AND '.$output[1].' = '.$filter_coursemoduleid;
				$finalelements = str_replace('%%FILTER_COURSEMODULEID:'.$output[1].'%%', $replace, $finalelements);
			}
            if (preg_match("/%%FILTER_COURSEMODULEFIELDS:([^%]+)%%/i",$finalelements, $output)) {
                $replace = ' '.$output[1].' ';
                $finalelements = str_replace('%%FILTER_COURSEMODULEFIELDS:'.$output[1].'%%', $replace, $finalelements);
            }

if (preg_match("/%%FILTER_COURSEMODULE:([^%]+)%%/i",$finalelements, $output)) {
                $module = $remoteDB->get_record('modules', array('id' => $filter_coursemoduleid));
                $replace = ' JOIN mdl_'.$module->name.' AS m ON m.id = '.$output[1].' ';
                $finalelements = str_replace('%%FILTER_COURSEMODULE:'.$output[1].'%%', $replace, $finalelements);
            }
        }
		return $finalelements;
	}

function print_filter(&$mform){
		global $remoteDB;

$filter_coursemoduleid = optional_param('filter_coursemodules',0,PARAM_INT);

$reportclassname = 'report_'.$this->report->type;
		$reportclass = new $reportclassname($this->report);

if($this->report->type != 'sql') {
			$components = cr_unserialize($this->report->components);
			$conditions = $components['conditions'];

$coursemodulelist = $reportclass->elements_by_conditions($conditions);
		} else {
			$coursemodulelist = array_keys($remoteDB->get_records('modules'));
		}

$courseoptions = array();
		$courseoptions[0] = get_string('filter_all', 'block_configurable_reports');

if(!empty($coursemodulelist)){
			list($usql, $params) = $remoteDB->get_in_or_equal($coursemodulelist);
			$coursemodules = $remoteDB->get_records_select('modules',"id $usql",$params);

foreach($coursemodules as $c){
				$courseoptions[$c->id] = format_string(get_string('pluginname',$c->name).' = '.$c->name);
			}
		}

$mform->addElement('select', 'filter_coursemodules', get_string('filtercoursemodules', 'block_configurable_reports'), $courseoptions);
		$mform->setType('filter_coursemodules', PARAM_INT);

}