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<?php
defined('MOODLE_INTERNAL') OR die('not allowed');
require_once($CFG->dirroot.'/mod/feedback/item/feedback_item_class.php');
define('FEEDBACK_RADIORATED_ADJUST_SEP', '<<<<<');
define('FEEDBACK_MULTICHOICERATED_MAXCOUNT', 10); //count of possible items
define('FEEDBACK_MULTICHOICERATED_VALUE_SEP', '####');
define('FEEDBACK_MULTICHOICERATED_VALUE_SEP2', '/');
define('FEEDBACK_MULTICHOICERATED_TYPE_SEP', '>>>>>');
define('FEEDBACK_MULTICHOICERATED_LINE_SEP', '|');
define('FEEDBACK_MULTICHOICERATED_ADJUST_SEP', '<<<<<');
define('FEEDBACK_MULTICHOICERATED_IGNOREEMPTY', 'i');
define('FEEDBACK_MULTICHOICERATED_HIDENOSELECT', 'h');
class feedback_item_multichoicerated extends feedback_item_base {
var $type = "multichoicerated";
var $commonparams;
var $item_form;
var $item;
function init() {
}
function build_editform($item, $feedback, $cm) {
global $DB, $CFG;
require_once('multichoicerated_form.php');
//get the lastposition number of the feedback_items
$position = $item->position;
$lastposition = $DB->count_records('feedback_item', array('feedback'=>$feedback->id));
if($position == -1){
$i_formselect_last = $lastposition + 1;
$i_formselect_value = $lastposition + 1;
$item->position = $lastposition + 1;
}else {
$i_formselect_last = $lastposition;
$i_formselect_value = $item->position;
}
//the elements for position dropdownlist
$positionlist = array_slice(range(0,$i_formselect_last),1,$i_formselect_last,true);
$item->presentation = empty($item->presentation) ? '' : $item->presentation;
$info = $this->get_info($item);
$item->ignoreempty = $this->ignoreempty($item);
$item->hidenoselect = $this->hidenoselect($item);
//all items for dependitem
$feedbackitems = feedback_get_depend_candidates_for_item($feedback, $item);
$commonparams = array('cmid'=>$cm->id,
'id'=>isset($item->id) ? $item->id : NULL,
'typ'=>$item->typ,
'items'=>$feedbackitems,
'feedback'=>$feedback->id);
//build the form
$this->item_form = new feedback_multichoicerated_form('edit_item.php', array('item'=>$item, 'common'=>$commonparams, 'positionlist'=>$positionlist, 'position'=>$position, 'info'=>$info));
}
//this function only can used after the call of build_editform()
function show_editform() {
$this->item_form->display();
}
function is_cancelled() {
return $this->item_form->is_cancelled();
}
function get_data() {
if($this->item = $this->item_form->get_data()) {
return true;
}
return false;
}
function save_item() {
global $DB;
if(!$item = $this->item_form->get_data()) {
return false;
}
if(isset($item->clone_item) AND $item->clone_item) {
$item->id = ''; //to clone this item
$item->position++;
}
$this->set_ignoreempty($item, $item->ignoreempty);
$this->set_hidenoselect($item, $item->hidenoselect);
$item->hasvalue = $this->get_hasvalue();
if(!$item->id) {
$item->id = $DB->insert_record('feedback_item', $item);
}else {
$DB->update_record('feedback_item', $item);
}
return $DB->get_record('feedback_item', array('id'=>$item->id));
}
//liefert ein eindimensionales Array mit drei Werten(typ, name, XXX)
//XXX ist ein eindimensionales Array (Mittelwert der Werte der Antworten bei Typ Radio_rated) Jedes Element ist eine Struktur (answertext, avg)
function get_analysed($item, $groupid = false, $courseid = false) {
$analysedItem = array();
$analysedItem[] = $item->typ;
$analysedItem[] = $item->name;
//die moeglichen Antworten extrahieren
$info = $this->get_info($item);
$lines = null;
$lines = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
if(!is_array($lines)) return null;
//die Werte holen
$values = feedback_get_group_values($item, $groupid, $courseid, $this->ignoreempty($item));
if(!$values) return null;
//schleife ueber den Werten und ueber die Antwortmoeglichkeiten
$analysedAnswer = array();
$sizeoflines = sizeof($lines);
for($i = 1; $i <= $sizeoflines; $i++) {
$item_values = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $lines[$i-1]);
$ans = null;
$ans->answertext = $item_values[1];
$avg = 0.0;
$anscount = 0;
foreach($values as $value) {
//ist die Antwort gleich dem index der Antworten + 1?
if ($value->value == $i) {
$avg += $item_values[0]; //erst alle Werte aufsummieren
$anscount++;
}
}
$ans->answercount = $anscount;
$ans->avg = doubleval($avg) / doubleval(sizeof($values));
$ans->value = $item_values[0];
$ans->quotient = $ans->answercount / sizeof($values);
$analysedAnswer[] = $ans;
}
$analysedItem[] = $analysedAnswer;
return $analysedItem;
}
function get_printval($item, $value) {
$printval = '';
if(!isset($value->value)) return $printval;
$info = $this->get_info($item);
$presentation = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
$index = 1;
foreach($presentation as $pres){
if($value->value == $index){
$item_label = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $pres);
$printval = $item_label[1];
break;
}
$index++;
}
return $printval;
}
function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
$sep_dec = get_string('separator_decimal', 'feedback');
if(substr($sep_dec, 0, 2) == '[['){
$sep_dec = FEEDBACK_DECIMAL;
}
$sep_thous = get_string('separator_thousand', 'feedback');
if(substr($sep_thous, 0, 2) == '[['){
$sep_thous = FEEDBACK_THOUSAND;
}
$analysedItem = $this->get_analysed($item, $groupid, $courseid);
if($analysedItem) {
//echo '<table>';
// $itemnr++;
echo '<tr><th colspan="2" align="left">'. $itemnr . '&nbsp;('. $item->label .') ' . $analysedItem[1] .'</th></tr>';
$analysedVals = $analysedItem[2];
$pixnr = 0;
$avg = 0.0;
foreach($analysedVals as $val) {
$intvalue = $pixnr % 10;
$pix = "pics/$intvalue.gif";
$pixnr++;
$pixwidth = intval($val->quotient * FEEDBACK_MAX_PIX_LENGTH);
$avg += $val->avg;
$quotient = number_format(($val->quotient * 100), 2, $sep_dec, $sep_thous);
echo '<tr><td align="left" valign="top">-&nbsp;&nbsp;' . trim($val->answertext) . ' ('.$val->value.'):</td><td align="left" style="width: '.FEEDBACK_MAX_PIX_LENGTH.'"><img alt="'.$intvalue.'" src="'.$pix.'" height="5" width="'.$pixwidth.'" />' . $val->answercount. (($val->quotient > 0)?'&nbsp;('. $quotient . '&nbsp;%)':'') . '</td></tr>';
}
$avg = number_format(($avg), 2, $sep_dec, $sep_thous);
echo '<tr><td align="left" colspan="2"><b>'.get_string('average', 'feedback').': '.$avg.'</b></td></tr>';
//echo '</table>';
}
// return $itemnr;
}
function excelprint_item(&$worksheet, $rowOffset, $xlsFormats, $item, $groupid, $courseid = false) {
$analysed_item = $this->get_analysed($item, $groupid, $courseid);
$data = $analysed_item[2];
// $worksheet->setFormat("<l><f><ro2><vo><c:green>");
//frage schreiben
$worksheet->write_string($rowOffset, 0, $item->label, $xlsFormats->head2);
$worksheet->write_string($rowOffset, 1, $analysed_item[1], $xlsFormats->head2);
if(is_array($data)) {
$avg = 0.0;
$sizeofdata = sizeof($data);
for($i = 0; $i < $sizeofdata; $i++) {
$aData = $data[$i];
// $worksheet->setFormat("<l><f><ro2><vo><c:blue>");
$worksheet->write_string($rowOffset, $i + 2, trim($aData->answertext).' ('.$aData->value.')', $xlsFormats->value_bold);
// $worksheet->setFormat("<l><vo>");
$worksheet->write_number($rowOffset + 1, $i + 2, $aData->answercount, $xlsFormats->default);
//$worksheet->setFormat("<l><f><vo>");
//$worksheet->write_number($rowOffset + 2, $i + 1, $aData->avg);
$avg += $aData->avg;
}
//mittelwert anzeigen
// $worksheet->setFormat("<l><f><ro2><vo><c:red>");
$worksheet->write_string($rowOffset, sizeof($data) + 2, get_string('average', 'feedback'), $xlsFormats->value_bold);
// $worksheet->setFormat("<l><f><vo>");
$worksheet->write_number($rowOffset + 1, sizeof($data) + 2, $avg, $xlsFormats->value_bold);
}
$rowOffset +=2 ;
return $rowOffset;
}
/**
* print the item at the edit-page of feedback
*
* @global object
* @param object $item
* @return void
*/
function print_item_preview($item) {
global $OUTPUT, $DB;
$align = right_to_left() ? 'right' : 'left';
$info = $this->get_info($item);
$lines = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
//print the question and label
echo '<div class="feedback_item_label_'.$align.'">';
echo '('.$item->label.') ';
echo format_text($item->name.$requiredmark, true, false, false);
if($item->dependitem) {
if($dependitem = $DB->get_record('feedback_item', array('id'=>$item->dependitem))) {
echo ' <span class="feedback_depend">('.$dependitem->label.'-&gt;'.$item->dependvalue.')</span>';
}
}
echo '</div>';
//print the presentation
echo '<div class="feedback_item_presentation_'.$align.'">';
switch($info->subtype) {
case 'r':
$this->print_item_radio($item, false, $info, $align, true, $lines);
break;
case 'd':
$this->print_item_dropdown($item, false, $info, $align, true, $lines);
break;
}
echo '</div>';
}
/**
* print the item at the complete-page of feedback
*
* @global object
* @param object $item
* @param string $value
* @param bool $highlightrequire
* @return void
*/
function print_item_complete($item, $value = '', $highlightrequire = false) {
global $OUTPUT;
$align = right_to_left() ? 'right' : 'left';
$info = $this->get_info($item);
$lines = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
if($highlightrequire AND $item->required AND intval($value) <= 0) {
$highlight = ' missingrequire';
}else {
$highlight = '';
}
//print the question and label
echo '<div class="feedback_item_label_'.$align.$highlight.'">';
echo format_text($item->name.$requiredmark, true, false, false);
echo '</div>';
//print the presentation
echo '<div class="feedback_item_presentation_'.$align.$highlight.'">';
switch($info->subtype) {
case 'r':
$this->print_item_radio($item, $value, $info, $align, false, $lines);
break;
case 'd':
$this->print_item_dropdown($item, $value, $info, $align, false, $lines);
break;
}
echo '</div>';
}
/**
* print the item at the complete-page of feedback
*
* @global object
* @param object $item
* @param string $value
* @return void
*/
function print_item_show_value($item, $value = '') {
global $OUTPUT;
$align = right_to_left() ? 'right' : 'left';
$info = $this->get_info($item);
$lines = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
$requiredmark = ($item->required == 1)?'<span class="feedback_required_mark">*</span>':'';
//print the question and label
echo '<div class="feedback_item_label_'.$align.'">';
echo '('.$item->label.') ';
echo format_text($item->name . $requiredmark, true, false, false);
echo '</div>';
//print the presentation
echo '<div class="feedback_item_presentation_'.$align.'">';
$index = 1;
foreach($lines as $line){
if($value == $index){
$item_value = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $line);
echo $OUTPUT->box_start('generalbox boxalign'.$align);
echo text_to_html($item_value[1], true, false, false);
echo $OUTPUT->box_end();
break;
}
$index++;
}
echo '</div>';
}
function check_value($value, $item) {
if((!isset($value) OR $value == '' OR $value == 0) AND $item->required != 1) return true;
if(intval($value) > 0)return true;
return false;
}
function create_value($data) {
$data = trim($data);
return $data;
}
//compares the dbvalue with the dependvalue
//dbvalue is the number of one selection
//dependvalue is the presentation of one selection
function compare_value($item, $dbvalue, $dependvalue) {
if (is_array($dbvalue)) {
$dbvalues = $dbvalue;
}else {
$dbvalues = explode(FEEDBACK_MULTICHOICERATED_LINE_SEP, $dbvalue);
}
$info = $this->get_info($item);
$presentation = explode (FEEDBACK_MULTICHOICERATED_LINE_SEP, $info->presentation);
$index = 1;
foreach($presentation as $pres) {
$presvalues = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $pres);
foreach($dbvalues as $dbval) {
if($dbval == $index AND trim($presvalues[1]) == $dependvalue) {
return true;
}
}
$index++;
}
return false;
}
function get_presentation($data) {
// $present = str_replace("\n", FEEDBACK_MULTICHOICERATED_LINE_SEP, trim($data->itemvalues));
$present = $this->prepare_presentation_values_save(trim($data->itemvalues), FEEDBACK_MULTICHOICERATED_VALUE_SEP2, FEEDBACK_MULTICHOICERATED_VALUE_SEP);
// $present = str_replace("\n", FEEDBACK_MULTICHOICERATED_LINE_SEP, trim($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_MULTICHOICERATED_ADJUST_SEP.'1';
}
return $subtype.FEEDBACK_MULTICHOICERATED_TYPE_SEP.$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_MULTICHOICERATED_TYPE_SEP, $item->presentation);
if(!isset($info->subtype)) {
$info->subtype = 'r';
}
if($info->subtype != 'd') {
@list($info->presentation, $info->horizontal) = explode(FEEDBACK_MULTICHOICERATED_ADJUST_SEP, $info->presentation);
if(isset($info->horizontal) AND $info->horizontal == 1) {
$info->horizontal = true;
}else {
$info->horizontal = false;
}
}
$info->values = $this->prepare_presentation_values_print($info->presentation, FEEDBACK_MULTICHOICERATED_VALUE_SEP, FEEDBACK_MULTICHOICERATED_VALUE_SEP2);
return $info;
}
function print_item_radio($item, $value, $info, $align, $showrating, $lines) {
$index = 1;
$checked = '';
if($info->horizontal) {
$hv = 'h';
}else {
$hv = 'v';
}
echo '<ul>';
if(!$this->hidenoselect($item)) {
?>
<li class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
<span class="feedback_item_radio_<?php echo $hv.'_'.$align;?>">
<input type="radio" name="<?php echo $item->typ . '_' . $item->id ;?>" id="<?php echo $item->typ . '_' . $item->id.'_xxx';?>" value="" checked="checked" />
</span>
<span class="feedback_item_radiolabel_<?php echo $hv.'_'.$align;?>">
<label for="<?php echo $item->typ . '_' . $item->id.'_xxx';?>"><?php print_string('not_selected', 'feedback');?>&nbsp;</label>
</span>
</li>
<?php
}
foreach($lines as $line){
if($value == $index){
$checked = 'checked="checked"';
}else{
$checked = '';
}
$radio_value = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $line);
$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 $inputid;?>">
<?php
if($showrating) {
echo text_to_html('('.$radio_value[0].') '.$radio_value[1], true, false, false);
}else {
echo text_to_html($radio_value[1], true, false, false);
}
?>
</label>
</span>
</li>
<?php
$index++;
}
echo '</ul>';
}
function print_item_dropdown($item, $value, $info, $align, $showrating, $lines) {
if($info->horizontal) {
$hv = 'h';
}else {
$hv = 'v';
}
echo '<ul>';
?>
<li class="feedback_item_select_<?php echo $hv.'_'.$align;?>">
<select name="<?php echo $item->typ.'_'.$item->id;?>">
<option value="0">&nbsp;</option>
<?php
$index = 1;
$checked = '';
foreach($lines as $line){
if($value == $index){
$selected = 'selected="selected"';
}else{
$selected = '';
}
$dropdown_value = explode(FEEDBACK_MULTICHOICERATED_VALUE_SEP, $line);
if($showrating) {
echo '<option value="'.$index.'" '.$selected.'>'.clean_text('('.$dropdown_value[0].') '.$dropdown_value[1]).'</option>';
}else {
echo '<option value="'.$index.'" '.$selected.'>'.clean_text($dropdown_value[1]).'</option>';
}
$index++;
}
?>
</select>
</li>
<?php
echo '</ul>';
}
function prepare_presentation_values($linesep1, $linesep2, $valuestring, $valuesep1, $valuesep2) {
$lines = explode($linesep1, $valuestring);
$newlines = array();
foreach($lines as $line) {
$value = '';
$text = '';
if(strpos($line, $valuesep1) === false) {
$value = 0;
$text = $line;
}else {
@list($value, $text) = explode($valuesep1, $line, 2);
}
$value = intval($value);
$newlines[] = $value.$valuesep2.$text;
}
$newlines = implode($linesep2, $newlines);
return $newlines;
}
function prepare_presentation_values_print($valuestring, $valuesep1, $valuesep2) {
return $this->prepare_presentation_values(FEEDBACK_MULTICHOICERATED_LINE_SEP, "\n", $valuestring, $valuesep1, $valuesep2);
}
function prepare_presentation_values_save($valuestring, $valuesep1, $valuesep2) {
return $this->prepare_presentation_values("\n", FEEDBACK_MULTICHOICERATED_LINE_SEP, $valuestring, $valuesep1, $valuesep2);
}
function set_ignoreempty($item, $ignoreempty=true) {
$item->options = str_replace(FEEDBACK_MULTICHOICERATED_IGNOREEMPTY, '', $item->options);
if($ignoreempty) {
$item->options .= FEEDBACK_MULTICHOICERATED_IGNOREEMPTY;
}
}
function ignoreempty($item) {
if(strstr($item->options, FEEDBACK_MULTICHOICERATED_IGNOREEMPTY)) {
return true;
}
return false;
}
function set_hidenoselect($item, $hidenoselect=true) {
$item->options = str_replace(FEEDBACK_MULTICHOICERATED_HIDENOSELECT, '', $item->options);
if($hidenoselect) {
$item->options .= FEEDBACK_MULTICHOICERATED_HIDENOSELECT;
}
}
function hidenoselect($item) {
if(strstr($item->options, FEEDBACK_MULTICHOICERATED_HIDENOSELECT)) {
return true;
}
return false;
}
function can_switch_require() {
return true;
}
}
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