dirroot.'/user/filters/lib.php'); /** * Generic filter based on a date. */ class user_filter_date extends user_filter_type { /** * the fields available for comparisson */ var $_field; /** * Constructor * @param string $name the name of the filter instance * @param string $label the label of the filter instance * @param boolean $advanced advanced form element flag * @param string $field user table filed name */ function user_filter_date($name, $label, $advanced, $field) { parent::user_filter_type($name, $label, $advanced); $this->_field = $field; } /** * Adds controls specific to this filter in the form. * @param object $mform a MoodleForm object to setup */ function setupForm(&$mform) { $objs = array(); $objs[] =& $mform->createElement('date_selector', $this->_name.'_sdt', null, array('optional' => true)); $objs[] =& $mform->createElement('static', $this->_name.'_break', null, '
'); $objs[] =& $mform->createElement('date_selector', $this->_name.'_edt', null, array('optional' => true)); $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false); if ($this->_advanced) { $mform->setAdvanced($this->_name.'_grp'); } } /** * Retrieves data from the form data * @param object $formdata data submited with the form * @return mixed array filter data or false when filter not set */ function check_data($formdata) { $sdt = $this->_name.'_sdt'; $edt = $this->_name.'_edt'; if (!$formdata->$sdt and !$formdata->$edt) { return false; } $data = array(); $data['after'] = $formdata->$sdt; $data['before'] = $formdata->$edt; return $data; } /** * Returns the condition to be used with SQL where * @param array $data filter settings * @return array sql string and $params */ function get_sql_filter($data) { $after = (int)$data['after']; $before = (int)$data['before']; $field = $this->_field; if (empty($after) and empty($before)) { return array('', array()); } $res = " $field >= 0 " ; if ($after) { $res .= " AND $field >= $after"; } if ($before) { $res .= " AND $field <= $before"; } return array($res, array()); } /** * Returns a human friendly description of the filter used as label. * @param array $data filter settings * @return string active filter label */ function get_label($data) { $after = $data['after']; $before = $data['before']; $field = $this->_field; $a = new stdClass(); $a->label = $this->_label; $a->after = userdate($after); $a->before = userdate($before); if ($after and $before) { return get_string('datelabelisbetween', 'filters', $a); } else if ($after) { return get_string('datelabelisafter', 'filters', $a); } else if ($before) { return get_string('datelabelisbefore', 'filters', $a); } return ''; } }