Petr Skoda
713 lines
26 KiB
PHP
713 lines
26 KiB
PHP
<?php
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defined('MOODLE_INTERNAL') OR die('not allowed');
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require_once($CFG->dirroot.'/mod/feedback/item/feedback_item_class.php');
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define('FEEDBACK_MULTICHOICE_TYPE_SEP', '>>>>>');
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define('FEEDBACK_MULTICHOICE_LINE_SEP', '|');
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define('FEEDBACK_MULTICHOICE_ADJUST_SEP', '<<<<<');
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define('FEEDBACK_MULTICHOICE_IGNOREEMPTY', 'i');
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define('FEEDBACK_MULTICHOICE_HIDENOSELECT', 'h');
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class feedback_item_multichoice extends feedback_item_base {
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var $type = "multichoice";
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var $commonparams;
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var $item_form;
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var $item;
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function init() {
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}
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function build_editform($item, $feedback, $cm) {
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global $DB, $CFG;
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require_once('multichoice_form.php');
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//get the lastposition number of the feedback_items
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$position = $item->position;
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$lastposition = $DB->count_records('feedback_item', array('feedback'=>$feedback->id));
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if($position == -1){
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$i_formselect_last = $lastposition + 1;
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$i_formselect_value = $lastposition + 1;
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$item->position = $lastposition + 1;
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}else {
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$i_formselect_last = $lastposition;
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$i_formselect_value = $item->position;
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}
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//the elements for position dropdownlist
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$positionlist = array_slice(range(0,$i_formselect_last),1,$i_formselect_last,true);
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$item->presentation = empty($item->presentation) ? '' : $item->presentation;
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$info = $this->get_info($item);
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$item->ignoreempty = $this->ignoreempty($item);
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$item->hidenoselect = $this->hidenoselect($item);
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//all items for dependitem
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$feedbackitems = feedback_get_depend_candidates_for_item($feedback, $item);
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$commonparams = array('cmid'=>$cm->id,
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'id'=>isset($item->id) ? $item->id : NULL,
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'typ'=>$item->typ,
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'items'=>$feedbackitems,
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'feedback'=>$feedback->id);
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//build the form
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$this->item_form = new feedback_multichoice_form('edit_item.php', array('item'=>$item, 'common'=>$commonparams, 'positionlist'=>$positionlist, 'position'=>$position, 'info'=>$info));
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}
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//this function only can used after the call of build_editform()
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function show_editform() {
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$this->item_form->display();
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}
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function is_cancelled() {
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return $this->item_form->is_cancelled();
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}
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function get_data() {
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if($this->item = $this->item_form->get_data()) {
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return true;
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}
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return false;
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}
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function save_item() {
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global $DB;
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if(!$item = $this->item_form->get_data()) {
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return false;
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}
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if(isset($item->clone_item) AND $item->clone_item) {
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$item->id = ''; //to clone this item
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$item->position++;
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}
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$this->set_ignoreempty($item, $item->ignoreempty);
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$this->set_hidenoselect($item, $item->hidenoselect);
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$item->hasvalue = $this->get_hasvalue();
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if(!$item->id) {
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$item->id = $DB->insert_record('feedback_item', $item);
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}else {
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$DB->update_record('feedback_item', $item);
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}
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return $DB->get_record('feedback_item', array('id'=>$item->id));
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}
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//liefert ein eindimensionales Array mit drei Werten(typ, name, XXX)
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//XXX ist ein eindimensionales Array (anzahl der Antworten bei Typ Radio) Jedes Element ist eine Struktur (answertext, answercount)
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function get_analysed($item, $groupid = false, $courseid = false) {
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$info = $this->get_info($item);
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$analysedItem = array();
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$analysedItem[] = $item->typ;
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$analysedItem[] = $item->name;
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//die moeglichen Antworten extrahieren
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$answers = null;
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// $presentation = '';
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// @list($presentation) = explode(FEEDBACK_RADIO_ADJUST_SEP, $item->presentation); //remove the adjustment-info
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$answers = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
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if(!is_array($answers)) return null;
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//die Werte holen
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$values = feedback_get_group_values($item, $groupid, $courseid, $this->ignoreempty($item));
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if(!$values) return null;
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//schleife ueber den Werten und ueber die Antwortmoeglichkeiten
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$analysedAnswer = array();
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if($info->subtype == 'c') {
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for($i = 1; $i <= sizeof($answers); $i++) {
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$ans = null;
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$ans->answertext = $answers[$i-1];
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$ans->answercount = 0;
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foreach($values as $value) {
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//ist die Antwort gleich dem index der Antworten + 1?
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$vallist = explode(FEEDBACK_MULTICHOICE_LINE_SEP, $value->value);
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foreach($vallist as $val) {
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if ($val == $i) {
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$ans->answercount++;
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}
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}
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}
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$ans->quotient = $ans->answercount / sizeof($values);
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$analysedAnswer[] = $ans;
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}
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}else {
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for($i = 1; $i <= sizeof($answers); $i++) {
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$ans = null;
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$ans->answertext = $answers[$i-1];
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$ans->answercount = 0;
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foreach($values as $value) {
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//ist die Antwort gleich dem index der Antworten + 1?
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if ($value->value == $i) {
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$ans->answercount++;
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}
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}
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$ans->quotient = $ans->answercount / sizeof($values);
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$analysedAnswer[] = $ans;
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}
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}
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$analysedItem[] = $analysedAnswer;
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return $analysedItem;
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}
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function get_printval($item, $value) {
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$info = $this->get_info($item);
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$printval = '';
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if(!isset($value->value)) return $printval;
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// @list($presentation) = explode(FEEDBACK_RADIO_ADJUST_SEP, $item->presentation); //remove the adjustment-info
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$presentation = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
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if($info->subtype == 'c') {
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$vallist = array_values(explode (FEEDBACK_MULTICHOICE_LINE_SEP, $value->value));
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for($i = 0; $i < sizeof($vallist); $i++) {
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for($k = 0; $k < sizeof($presentation); $k++) {
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if($vallist[$i] == ($k + 1)) {//Die Werte beginnen bei 1, das Array aber mit 0
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$printval .= trim($presentation[$k]) . chr(10);
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break;
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}
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}
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}
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}else {
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$index = 1;
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foreach($presentation as $pres){
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if($value->value == $index){
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$printval = $pres;
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break;
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}
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$index++;
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}
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}
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return $printval;
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}
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function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
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$sep_dec = get_string('separator_decimal', 'feedback');
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if(substr($sep_dec, 0, 2) == '[['){
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$sep_dec = FEEDBACK_DECIMAL;
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}
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$sep_thous = get_string('separator_thousand', 'feedback');
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if(substr($sep_thous, 0, 2) == '[['){
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$sep_thous = FEEDBACK_THOUSAND;
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}
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$analysedItem = $this->get_analysed($item, $groupid, $courseid);
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if($analysedItem) {
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// $itemnr++;
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$itemname = $analysedItem[1];
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echo '<tr><th colspan="2" align="left">'. $itemnr . ' ('. $item->label .') ' . $itemname .'</th></tr>';
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$analysedVals = $analysedItem[2];
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$pixnr = 0;
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foreach($analysedVals as $val) {
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if( function_exists("bcmod")) {
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$intvalue = bcmod($pixnr, 10);
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}else {
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$intvalue = 0;
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}
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$pix = "pics/$intvalue.gif";
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$pixnr++;
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$pixwidth = intval($val->quotient * FEEDBACK_MAX_PIX_LENGTH);
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$quotient = number_format(($val->quotient * 100), 2, $sep_dec, $sep_thous);
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echo '<tr><td align="left" valign="top">- ' . trim($val->answertext) . ':</td><td align="left" style="width: '.FEEDBACK_MAX_PIX_LENGTH.'"><img alt="'.$intvalue.'" src="'.$pix.'" height="5" width="'.$pixwidth.'" /> ' . $val->answercount . (($val->quotient > 0)?' ('. $quotient . ' %)':'').'</td></tr>';
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}
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}
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// return $itemnr;
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}
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function excelprint_item(&$worksheet, $rowOffset, $xlsFormats, $item, $groupid, $courseid = false) {
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$analysed_item = $this->get_analysed($item, $groupid, $courseid);
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$data = $analysed_item[2];
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// $worksheet->setFormat("<l><f><ro2><vo><c:green>");
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//frage schreiben
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$worksheet->write_string($rowOffset, 0, $item->label, $xlsFormats->head2_green);
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$worksheet->write_string($rowOffset, 1, $analysed_item[1], $xlsFormats->head2_green);
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if(is_array($data)) {
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for($i = 0; $i < sizeof($data); $i++) {
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$aData = $data[$i];
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// $worksheet->setFormat("<l><f><ro2><vo><c:blue>");
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$worksheet->write_string($rowOffset, $i + 2, trim($aData->answertext), $xlsFormats->value_blue);
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// $worksheet->setFormat("<l><vo>");
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$worksheet->write_number($rowOffset + 1, $i + 2, $aData->answercount, $xlsFormats->default);
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// $worksheet->setFormat("<l><f><vo><pr>");
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$worksheet->write_number($rowOffset + 2, $i + 2, $aData->quotient, $xlsFormats->procent);
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}
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}
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$rowOffset +=3 ;
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return $rowOffset;
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}
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/**
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* print the item at the edit-page of feedback
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*
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* @global object
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* @param object $item
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* @return void
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*/
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function print_item_preview($item) {
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global $OUTPUT, $DB;
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$info = $this->get_info($item);
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$align = right_to_left() ? 'right' : 'left';
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$presentation = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
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//test if required and no value is set so we have to mark this item
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//we have to differ check and the other subtypes
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$requiredmark = ($item->required == 1) ? '<span class="feedback_required_mark">*</span>' : '';
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.'">';
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echo '('.$item->label.') ';
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echo format_text($item->name.$requiredmark, true, false, false);
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if($item->dependitem) {
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if($dependitem = $DB->get_record('feedback_item', array('id'=>$item->dependitem))) {
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echo ' <span class="feedback_depend">('.$dependitem->label.'->'.$item->dependvalue.')</span>';
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}
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}
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.'">';
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$index = 1;
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$checked = '';
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echo '<ul>';
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if($info->horizontal) {
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$hv = 'h';
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}else {
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$hv = 'v';
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}
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if($info->subtype == 'r' AND !$this->hidenoselect($item)) {
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//print the "not_selected" item on radiobuttons
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?>
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<li class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
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<span class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
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<input type="radio" name="<?php echo $item->typ . '_' . $item->id ;?>" id="<?php echo $item->typ . '_' . $item->id.'_xxx';?>" value="" checked="checked" />
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</span>
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<span class="feedback_item_radiolabel_<?php echo $hv.'_'.$align;?>">
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<label for="<?php echo $item->typ . '_' . $item->id.'_xxx';?>"><?php print_string('not_selected', 'feedback');?> </label>
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</span>
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</li>
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<?php
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}
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switch($info->subtype) {
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case 'r':
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$this->print_item_radio($presentation, $item, false, $info, $align);
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break;
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case 'c':
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$this->print_item_check($presentation, $item, false, $info, $align);
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break;
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case 'd':
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$this->print_item_dropdown($presentation, $item, false, $info, $align);
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break;
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}
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echo '</ul>';
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echo '</div>';
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}
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/**
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* print the item at the complete-page of feedback
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*
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* @global object
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* @param object $item
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* @param string $value
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* @param bool $highlightrequire
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* @return void
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*/
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function print_item_complete($item, $value = '', $highlightrequire = false) {
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global $OUTPUT;
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$info = $this->get_info($item);
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$align = right_to_left() ? 'right' : 'left';
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$presentation = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
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//test if required and no value is set so we have to mark this item
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//we have to differ check and the other subtypes
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if($info->subtype == 'c') {
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if (is_array($value)) {
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$values = $value;
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}else {
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$values = explode(FEEDBACK_MULTICHOICE_LINE_SEP, $value);
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}
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if($highlightrequire AND $item->required AND $values[0] == '') {
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$highlight = ' missingrequire';
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}else {
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$highlight = '';
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}
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$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
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}else {
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if($highlightrequire AND $item->required AND intval($value) <= 0) {
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$highlight = ' missingrequire';
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}else {
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$highlight = '';
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}
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$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
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}
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.$highlight.'">';
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echo format_text($item->name.$requiredmark, true, false, false);
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.$highlight.'">';
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echo '<ul>';
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if($info->horizontal) {
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$hv = 'h';
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}else {
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$hv = 'v';
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}
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//print the "not_selected" item on radiobuttons
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if($info->subtype == 'r' AND !$this->hidenoselect($item)) {
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?>
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<li class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
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<span class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
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<input type="radio" name="<?php echo $item->typ.'_'.$item->id ;?>" id="<?php echo $item->typ . '_' . $item->id.'_xxx';?>" value="" <?php echo $value ? '' : 'checked="checked"';?> />
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</span>
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<span class="feedback_item_radiolabel_<?php echo $hv.'_'.$align;?>">
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<label for="<?php echo $item->typ.'_'.$item->id.'_xxx';?>"><?php print_string('not_selected', 'feedback');?> </label>
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</span>
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</li>
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<?php
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}
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switch($info->subtype) {
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case 'r':
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$this->print_item_radio($presentation, $item, $value, $info, $align);
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break;
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case 'c':
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$this->print_item_check($presentation, $item, $value, $info, $align);
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break;
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case 'd':
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$this->print_item_dropdown($presentation, $item, $value, $info, $align);
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break;
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}
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echo '</ul>';
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echo '</div>';
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}
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/**
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* print the item at the complete-page of feedback
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*
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* @global object
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* @param object $item
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* @param string $value
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* @return void
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*/
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function print_item_show_value($item, $value = '') {
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global $OUTPUT;
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$info = $this->get_info($item);
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$align = right_to_left() ? 'right' : 'left';
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$presentation = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
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//test if required and no value is set so we have to mark this item
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//we have to differ check and the other subtypes
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if($info->subtype == 'c') {
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if (is_array($value)) {
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$values = $value;
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}else {
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$values = explode(FEEDBACK_MULTICHOICE_LINE_SEP, $value);
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}
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$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
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}else {
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$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
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}
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//print the question and label
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echo '<div class="feedback_item_label_'.$align.'">';
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echo '('.$item->label.') ';
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echo format_text($item->name . $requiredmark, true, false, false);
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echo '</div>';
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//print the presentation
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echo '<div class="feedback_item_presentation_'.$align.'">';
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$index = 1;
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if($info->subtype == 'c') {
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echo $OUTPUT->box_start('generalbox boxalign'.$align);
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foreach($presentation as $pres){
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foreach($values as $val) {
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if($val == $index){
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echo '<div class="feedback_item_multianswer">';
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echo text_to_html($pres, true, false, false);
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echo '</div>';
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break;
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}
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}
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$index++;
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}
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echo $OUTPUT->box_end();
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}else {
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foreach($presentation as $pres){
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if($value == $index){
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echo $OUTPUT->box_start('generalbox boxalign'.$align);
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echo text_to_html($pres, true, false, false);
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echo $OUTPUT->box_end();
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break;
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}
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$index++;
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}
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}
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echo '</div>';
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}
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function check_value($value, $item) {
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$info = $this->get_info($item);
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if($info->subtype == 'c') {
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|
if((!isset($value) OR !is_array($value) OR $value[0] == '' OR $value[0] == 0) AND $item->required != 1){
|
|
return true;
|
|
}
|
|
if($value[0] == ""){
|
|
return false;
|
|
}
|
|
return true;
|
|
}else {
|
|
//if the item is not required, so the check is true if no value is given
|
|
if((!isset($value) OR $value == '' OR $value == 0) AND $item->required != 1) return true;
|
|
if(intval($value) > 0)return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function create_value($data) {
|
|
$vallist = $data;
|
|
return trim($this->item_arrayToString($vallist));
|
|
}
|
|
|
|
//compares the dbvalue with the dependvalue
|
|
//dbvalue is the number of one selection
|
|
//dependvalue is the presentation of one selection
|
|
function compare_value($item, $dbvalue, $dependvalue) {
|
|
|
|
if (is_array($dbvalue)) {
|
|
$dbvalues = $dbvalue;
|
|
}else {
|
|
$dbvalues = explode(FEEDBACK_MULTICHOICE_LINE_SEP, $dbvalue);
|
|
}
|
|
|
|
$info = $this->get_info($item);
|
|
$presentation = explode (FEEDBACK_MULTICHOICE_LINE_SEP, $info->presentation);
|
|
$index = 1;
|
|
foreach($presentation as $pres) {
|
|
foreach($dbvalues as $dbval) {
|
|
if($dbval == $index AND trim($pres) == $dependvalue) {
|
|
return true;
|
|
}
|
|
}
|
|
$index++;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function get_presentation($data) {
|
|
$present = str_replace("\n", FEEDBACK_MULTICHOICE_LINE_SEP, trim($data->itemvalues));
|
|
if(!isset($data->subtype)) {
|
|
$subtype = 'r';
|
|
}else {
|
|
$subtype = substr($data->subtype, 0, 1);
|
|
}
|
|
if(isset($data->horizontal) AND $data->horizontal == 1 AND $subtype != 'd') {
|
|
$present .= FEEDBACK_MULTICHOICE_ADJUST_SEP.'1';
|
|
}
|
|
return $subtype.FEEDBACK_MULTICHOICE_TYPE_SEP.$present;
|
|
}
|
|
|
|
function get_hasvalue() {
|
|
return 1;
|
|
}
|
|
|
|
function get_info($item) {
|
|
$presentation = empty($item->presentation) ? '' : $item->presentation;
|
|
|
|
$info = new stdClass();
|
|
//check the subtype of the multichoice
|
|
//it can be check(c), radio(r) or dropdown(d)
|
|
$info->subtype = '';
|
|
$info->presentation = '';
|
|
$info->horizontal = false;
|
|
|
|
@list($info->subtype, $info->presentation) = explode(FEEDBACK_MULTICHOICE_TYPE_SEP, $item->presentation);
|
|
if(!isset($info->subtype)) {
|
|
$info->subtype = 'r';
|
|
}
|
|
|
|
if($info->subtype != 'd') {
|
|
@list($info->presentation, $info->horizontal) = explode(FEEDBACK_MULTICHOICE_ADJUST_SEP, $info->presentation);
|
|
if(isset($info->horizontal) AND $info->horizontal == 1) {
|
|
$info->horizontal = true;
|
|
}else {
|
|
$info->horizontal = false;
|
|
}
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
function item_arrayToString($value) {
|
|
if(!is_array($value)) {
|
|
return $value;
|
|
}
|
|
$retval = '';
|
|
$arrvals = array_values($value);
|
|
$arrvals = clean_param($arrvals, PARAM_INT); //prevent sql-injection
|
|
$retval = $arrvals[0];
|
|
for($i = 1; $i < sizeof($arrvals); $i++) {
|
|
$retval .= FEEDBACK_MULTICHOICE_LINE_SEP.$arrvals[$i];
|
|
}
|
|
return $retval;
|
|
}
|
|
|
|
function print_item_radio($presentation, $item, $value, $info, $align) {
|
|
$index = 1;
|
|
$checked = '';
|
|
|
|
if($info->horizontal) {
|
|
$hv = 'h';
|
|
}else {
|
|
$hv = 'v';
|
|
}
|
|
|
|
foreach($presentation as $radio){
|
|
if($value == $index){
|
|
$checked = 'checked="checked"';
|
|
}else{
|
|
$checked = '';
|
|
}
|
|
$inputname = $item->typ . '_' . $item->id;
|
|
$inputid = $inputname.'_'.$index;
|
|
?>
|
|
<li class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
|
|
<span class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
|
|
<input type="radio" name="<?php echo $inputname;?>" id="<?php echo $inputid;?>" value="<?php echo $index;?>" <?php echo $checked;?> />
|
|
</span>
|
|
<span class="feedback_item_radiolabel_<?php echo $hv.'_'.$align;?>">
|
|
<label for="<?php echo $inputid;?>"><?php echo text_to_html($radio, true, false, false);?> </label>
|
|
</span>
|
|
</li>
|
|
<?php
|
|
$index++;
|
|
}
|
|
}
|
|
|
|
function print_item_check($presentation, $item, $value, $info, $align) {
|
|
|
|
if (is_array($value)) {
|
|
$values = $value;
|
|
}else {
|
|
$values = explode(FEEDBACK_MULTICHOICE_LINE_SEP, $value);
|
|
}
|
|
|
|
if($info->horizontal) {
|
|
$hv = 'h';
|
|
}else {
|
|
$hv = 'v';
|
|
}
|
|
|
|
$index = 1;
|
|
$checked = '';
|
|
foreach($presentation as $check){
|
|
foreach($values as $val) {
|
|
if($val == $index){
|
|
$checked = 'checked="checked"';
|
|
break;
|
|
}else{
|
|
$checked = '';
|
|
}
|
|
}
|
|
$inputname = $item->typ. '_' . $item->id;
|
|
$inputid = $item->typ. '_' . $item->id.'_'.$index;
|
|
?>
|
|
<li class="feedback_item_check_<?php echo $hv.'_'.$align;?>">
|
|
<span class="feedback_item_check_<?php echo $hv.'_'.$align;?>">
|
|
<input type="checkbox" name="<?php echo $inputname;?>[]" id="<?php echo $inputid;?>" value="<?php echo $index;?>" <?php echo $checked;?> />
|
|
</span>
|
|
<span class="feedback_item_radiolabel_<?php echo $hv.'_'.$align;?>">
|
|
<label for="<?php echo $inputid;?>"><?php echo text_to_html($check, true, false, false);?> </label>
|
|
</span>
|
|
</li>
|
|
<?php
|
|
$index++;
|
|
}
|
|
}
|
|
|
|
function print_item_dropdown($presentation, $item, $value, $info, $align) {
|
|
if($info->horizontal) {
|
|
$hv = 'h';
|
|
}else {
|
|
$hv = 'v';
|
|
}
|
|
|
|
?>
|
|
<li class="feedback_item_select_<?php echo $hv.'_'.$align;?>">
|
|
<select name="<?php echo $item->typ .'_' . $item->id;?>" size="1">
|
|
<option value="0"> </option>
|
|
<?php
|
|
$index = 1;
|
|
$checked = '';
|
|
foreach($presentation as $dropdown){
|
|
if($value == $index){
|
|
$selected = 'selected="selected"';
|
|
}else{
|
|
$selected = '';
|
|
}
|
|
?>
|
|
<option value="<?php echo $index;?>" <?php echo $selected;?>><?php echo text_to_html($dropdown, true, false, false);?></option>
|
|
<?php
|
|
$index++;
|
|
}
|
|
?>
|
|
</select>
|
|
</li>
|
|
<?php
|
|
}
|
|
|
|
function set_ignoreempty($item, $ignoreempty=true) {
|
|
$item->options = str_replace(FEEDBACK_MULTICHOICE_IGNOREEMPTY, '', $item->options);
|
|
if($ignoreempty) {
|
|
$item->options .= FEEDBACK_MULTICHOICE_IGNOREEMPTY;
|
|
}
|
|
}
|
|
|
|
function ignoreempty($item) {
|
|
if(strstr($item->options, FEEDBACK_MULTICHOICE_IGNOREEMPTY)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function set_hidenoselect($item, $hidenoselect=true) {
|
|
$item->options = str_replace(FEEDBACK_MULTICHOICE_HIDENOSELECT, '', $item->options);
|
|
if($hidenoselect) {
|
|
$item->options .= FEEDBACK_MULTICHOICE_HIDENOSELECT;
|
|
}
|
|
}
|
|
|
|
function hidenoselect($item) {
|
|
if(strstr($item->options, FEEDBACK_MULTICHOICE_HIDENOSELECT)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
function can_switch_require() {
|
|
return true;
|
|
}
|
|
}
|