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datasetitems_form.php
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datasetitems_form.php
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<?php
class question_dataset_dependent_items_form extends moodleform {
/**
* Question object with options and answers already loaded by get_question_options
* Be careful how you use this it is needed sometimes to set up the structure of the
* form in definition_inner but data is always loaded into the form with set_defaults.
*
* @var object
*/
var $question;
/**
* Reference to question type object
*
* @var question_dataset_dependent_questiontype
*/
var $qtypeobj;
var $datasetdefs;
var $maxnumber = -1;
var $regenerate;
var $noofitems;
/**
* Add question-type specific form fields.
*
* @param MoodleQuickForm $mform the form being built.
*/
function question_dataset_dependent_items_form($submiturl, $question, $regenerate){
global $QTYPES, $SESSION, $CFG;
$this->regenerate = $regenerate;
$this->question = $question;
$this->qtypeobj =& $QTYPES[$this->question->qtype];
//get the dataset defintions for this question
if (empty($question->id)) {
$this->datasetdefs = $this->qtypeobj->get_dataset_definitions($question->id, $SESSION->datasetdependent->definitionform->dataset);
} else {
if (empty($question->options)) {
$this->get_question_options($question);
}
$this->datasetdefs = $this->qtypeobj->get_dataset_definitions($question->id, array());
}
foreach ($this->datasetdefs as $datasetdef) {
// Get maxnumber
if ($this->maxnumber == -1 || $datasetdef->itemcount < $this->maxnumber) {
$this->maxnumber = $datasetdef->itemcount;
}
}
foreach ($this->datasetdefs as $defid => $datasetdef) {
if (isset($datasetdef->id)) {
$this->datasetdefs[$defid]->items = get_records_sql( // Use number as key!!
" SELECT itemnumber, definition, id, value
FROM {$CFG->prefix}question_dataset_items
WHERE definition = $datasetdef->id ");
}
}
parent::moodleform($submiturl);
}
function definition() {
$mform =& $this->_form;
$strquestionlabel = $this->qtypeobj->comment_header($this->question);
if ($this->maxnumber != -1){
$this->noofitems = $this->maxnumber;
} else {
$this->noofitems = 0;
}
//------------------------------------------------------------------------------------------------------------------------------
$mform->addElement('submit', 'updatedatasets', get_string('updatedatasetparam', 'qtype_datasetdependent'));
$mform->addElement('header', 'additemhdr', get_string('itemtoadd', 'qtype_datasetdependent'));
$idx = 1;
$j = (($this->noofitems) * count($this->datasetdefs))+1;
foreach ($this->datasetdefs as $defkey => $datasetdef){
$mform->addElement('text', "number[$j]", get_string('param', 'qtype_datasetdependent', $datasetdef->name));
$this->qtypeobj->custom_generator_tools_part(&$mform, $idx, $j);
$idx++;
$mform->addElement('hidden', "definition[$j]");
$mform->addElement('hidden', "itemid[$j]");
$mform->addElement('static', "divider[$j]", '', '<hr />');
$j++;
}
if ('' != $strquestionlabel){
$mform->addElement('static', 'answercomment['.($this->noofitems+1).']', $strquestionlabel);
}
$addremoveoptions = Array();
$addremoveoptions['1']='1';
for ($i=10; $i<=100 ; $i+=10){
$addremoveoptions["$i"]="$i";
}
$mform->addElement('header', 'additemhdr', get_string('add', 'moodle'));
$mform->closeHeaderBefore('additemhdr');
if ($this->qtypeobj->supports_dataset_item_generation()){
$radiogrp = array();
$radiogrp[] =& $mform->createElement('radio', 'nextpageparam[forceregeneration]', null, get_string('reuseifpossible', 'qtype_datasetdependent'), 0);
$radiogrp[] =& $mform->createElement('radio', 'nextpageparam[forceregeneration]', null, get_string('forceregeneration', 'qtype_datasetdependent'), 1);
$mform->addGroup($radiogrp, 'forceregenerationgrp', get_string('nextitemtoadd', 'qtype_calculated'), "<br/>", false);
}
$mform->addElement('submit', 'getnextbutton', get_string('getnextnow', 'qtype_datasetdependent'));
$mform->addElement('static', "dividera", '', '<hr />');
$addgrp = array();
$addgrp[] =& $mform->createElement('submit', 'addbutton', get_string('add', 'moodle'));
$addgrp[] =& $mform->createElement('select', "selectadd", get_string('additem', 'qtype_datasetdependent'), $addremoveoptions);
$addgrp[] = & $mform->createElement('static',"stat","Items",get_string('item(s)', 'qtype_datasetdependent'));
$mform->addGroup($addgrp, 'addgrp', '', ' ', false);
$mform->addElement('static', "divideradd", '', '');
// $mform->closeHeaderBefore('divideradd');
if ($this->noofitems > 0) {
$mform->addElement('header', 'additemhdr', get_string('delete', 'moodle'));
$deletegrp = array();
$deletegrp[] =& $mform->createElement('submit', 'deletebutton', get_string('delete', 'moodle'));
$deletegrp[] =& $mform->createElement('select', "selectdelete", get_string('deleteitem', 'qtype_datasetdependent')."1", $addremoveoptions);
$deletegrp[] = & $mform->createElement('static',"stat","Items",get_string('lastitem(s)', 'qtype_datasetdependent'));
$mform->addGroup($deletegrp, 'deletegrp', '', ' ', false);
// $mform->addElement('static', "dividerdelete", '', '<hr />');
// $mform->closeHeaderBefore('dividerdelete');
} else {
$mform->addElement('static','warning','','<span class="error">'.get_string('youmustaddatleastoneitem', 'qtype_datasetdependent').'</span>');
}
//------------------------------------------------------------------------------------------------------------------------------
$j = $this->noofitems * count($this->datasetdefs);
for ($i = $this->noofitems; $i >= 1 ; $i--){
$mform->addElement('header', '', get_string('itemno', 'qtype_datasetdependent', $i));
foreach ($this->datasetdefs as $defkey => $datasetdef){
$mform->addElement('text', "number[$j]", get_string('param', 'qtype_datasetdependent', $datasetdef->name));
$mform->addElement('hidden', "itemid[$j]");
$mform->addElement('hidden', "definition[$j]");
$j--;
}
if ('' != $strquestionlabel){
$repeated[] =& $mform->addElement('static', "answercomment[$i]", $strquestionlabel);
}
}
$mform->setType('number', PARAM_NUMBER);
$mform->setType('itemid', PARAM_INT);
$mform->setType('definition', PARAM_NOTAGS);
//------------------------------------------------------------------------------------------------------------------------------
//non standard name for button element needed so not using add_action_buttons
$mform->addElement('submit', 'backtoquiz', get_string('savechanges'));
$mform->closeHeaderBefore('backtoquiz');
//hidden elements
$mform->addElement('hidden', 'returnurl');
$mform->setType('returnurl', PARAM_URL);
$mform->addElement('hidden', 'qtype');
$mform->setType('qtype', PARAM_ALPHA);
$mform->addElement('hidden', 'category');
$mform->setType('category', PARAM_INT);
$mform->addElement('hidden', 'id');
$mform->setType('id', PARAM_INT);
$mform->addElement('hidden', 'wizard', 'datasetitems');
$mform->setType('wizard', PARAM_ALPHA);
}
function set_data($question){
$formdata = array();
//fill out all data sets and also the fields for the next item to add.
$j = $this->noofitems * count($this->datasetdefs);
for ($itemnumber = $this->noofitems; $itemnumber >= 1; $itemnumber--){
$data = array();
foreach ($this->datasetdefs as $defid => $datasetdef){
if (isset($datasetdef->items[$itemnumber])){
$formdata["number[$j]"] = $datasetdef->items[$itemnumber]->value;
$formdata["definition[$j]"] = $defid;
$formdata["itemid[$j]"] = $datasetdef->items[$itemnumber]->id;
$data[$datasetdef->name] = $datasetdef->items[$itemnumber]->value;
}
$j--;
}
$formdata['answercomment['.$itemnumber.']'] = $this->qtypeobj->comment_on_datasetitems($this->question, $data, $itemnumber);
}
$formdata['nextpageparam[forceregeneration]'] = $this->regenerate;
$formdata['selectdelete'] = '1';
$formdata['selectadd'] = '1';
$j = $this->noofitems * count($this->datasetdefs)+1;
$data = array(); // data for comment_on_datasetitems later
//dataset generation dafaults
if ($this->qtypeobj->supports_dataset_item_generation()) {
$itemnumber = $this->noofitems+1;
foreach ($this->datasetdefs as $defid => $datasetdef){
$formdata["number[$j]"] = $this->qtypeobj->generate_dataset_item($datasetdef->options);
$formdata["definition[$j]"] = $defid;
$formdata["itemid[$j]"] =
isset($datasetdef->items[$itemnumber])?$datasetdef->items[$itemnumber]->id:0;
$data[$datasetdef->name] = $formdata["number[$j]"];
$j++;
}
}
//existing records override generated data depending on radio element
$j = $this->noofitems * count($this->datasetdefs)+1;
if (!$this->regenerate){
$idx = 1;
$itemnumber = $this->noofitems+1;
foreach ($this->datasetdefs as $defid => $datasetdef){
if (isset($datasetdef->items[$itemnumber])){
$formdata["number[$j]"] = $datasetdef->items[$itemnumber]->value;
$formdata["definition[$j]"] = $defid;
$formdata["itemid[$j]"] = $datasetdef->items[$itemnumber]->id;
$data[$datasetdef->name] = $datasetdef->items[$itemnumber]->value;
}
$j++;
}
}
//default answercomment will get ignored if answer element is not in the form.
$formdata['answercomment['.($this->noofitems+1).']'] = $this->qtypeobj->comment_on_datasetitems($this->question, $data, ($this->noofitems+1));
$formdata = $this->qtypeobj->custom_generator_set_data($this->datasetdefs, $formdata);
parent::set_data((object)($formdata + (array)$question));
}
function validation($data){
$errors = array();
if (isset($data['backtoquiz']) && ($this->noofitems==0)){
$errors['warning'] = get_string('warning', 'mnet');
}
return $errors;
}
}
?>