data.days.php

<?php

	require_once(TOOLKIT . '/class.datasource.php');
	
	Class datasourcedays extends Datasource{
		
		public $dsParamROOTELEMENT = 'days';
		public $dsParamURL = 'http://symphony.dev';
		public $dsParamXPATH = '/';
		public $dsParamCACHE = '60';

		public $dsParamFILTERS = array(
				'start' => '{$start: -2 months}',
				'end' => '{$end: today}',
		);

		public function __construct(&$parent, $env=NULL, $process_params=true){
			parent::__construct($parent, $env, $process_params);
			$this->_dependencies = array();
		}
		
		public function about(){
			return array(
					 'name' => 'Days',
					 'author' => array(
							'name' => 'Jonas Coch',
							'website' => 'http://symphony.dev',
							'email' => 'jonas@klaftertief.de'),
					 'version' => '1.0',
					 'release-date' => '2010-07-04T15:49:57+00:00');	
		}
		
		public function allowEditorToParse(){
			return false;
		}
		
		public function grab(&$param_pool){
			$result = new XMLElement($this->dsParamROOTELEMENT);
			
			if((isset($this->_env) && is_array($this->_env)) && is_array($this->dsParamFILTERS) && !empty($this->dsParamFILTERS)){
				foreach($this->dsParamFILTERS as $key => $value){
					$value = stripslashes($value);
					$new_value = $this->__processParametersInString($value, $this->_env);
			
					if(strlen(trim($new_value)) == 0) unset($this->dsParamFILTERS[$key]);
					else $this->dsParamFILTERS[$key] = $new_value;
					
				}
			}

			$start = strtotime($this->dsParamFILTERS['start']);
			$end = strtotime($this->dsParamFILTERS['end']);

			$time = $start;

			$year = date('Y', $start);
			$month = date('m', $start);
			$week = date('W', $start);

			$xmlYear = new XMLElement('year', NULL, array('year' => $year));
			$xmlMonth = new XMLElement('month', NULL, array('month' => $month));

			$xmlYear->appendChild($xmlMonth);

			$result->appendChild($xmlYear);

			while ($time <= $end) {
				if ($year != date('Y', $time)) {
					$year = date('Y', $time);
					$xmlYear = new XMLElement('year', NULL, array('year' => $year));
					$result->appendChild($xmlYear);
				}
				if ($month != date('m', $time)) {
					$month = date('m', $time);
					$xmlMonth = new XMLElement('month', NULL, array('month' => $month));
					$xmlYear->appendChild($xmlMonth);
				}
				$xmlDate = new XMLElement('date', sprintf("%04d-%02d-%02d", $year, date('m', $time), date('d', $time)), array('day-of-year' => date('z', $time), 'weekday'=> date('w', $time), 'calendar-week'=> date('W', $time)));
				$xmlMonth->appendChild($xmlDate);

				$time = $time + (24 * 60 * 60);
			}

			return $result;
		}
	}