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Public Member Functions | Protected Member Functions
SurveyMultipleChoiceQuestionGUI Class Reference
Modules/SurveyQuestionPool

MultipleChoice survey question GUI representation. More...

+ Inheritance diagram for SurveyMultipleChoiceQuestionGUI:
+ Collaboration diagram for SurveyMultipleChoiceQuestionGUI:

Public Member Functions

 setQuestionTabs ()
 getPrintView ($question_title=1, $show_questiontext=1, $survey_id=null)
 Creates a HTML representation of the question.
 getWorkingForm ($working_data="", $question_title=1, $show_questiontext=1, $error_message="", $survey_id=null)
 Creates the question output form for the learner.
 getCumulatedResultsDetails ($survey_id, $counter, $finished_ids)
 Creates the detailed output of the cumulated results for the question.
- Public Member Functions inherited from SurveyQuestionGUI
 __construct ($a_id=-1)
& executeCommand ()
 _getGUIClassNameForId ($a_q_id)
 _getClassNameForQType ($q_type)
 getQuestionType ()
 Returns the question type string.
 setBackUrl ($a_url)
 setQuestionTabsForClass ($guiclass)
 getPrintView ($question_title=1, $show_questiontext=1)
 preview ()
 Creates a preview of the question.
 material ($checkonly=FALSE)
 Material tab of the survey questions.
 deleteMaterial ()
 addMaterial ()
 Add materials to a question.
 removeMaterial ()
 cancelExplorer ()
 addPG ()
 addST ()
 addGIT ()
 linkChilds ()
 savePhrase ($a_reload=false)
 Creates an output to save the current answers as a phrase.
 confirmSavePhrase ()
 Save a new phrase to the database.

Protected Member Functions

 initObject ()
 addFieldsToEditForm (ilPropertyFormGUI $a_form)
 validateEditForm (ilPropertyFormGUI $a_form)
 importEditFormValues (ilPropertyFormGUI $a_form)
- Protected Member Functions inherited from SurveyQuestionGUI
 outQuestionText ($template)
 initEditForm ()
 addCommandButtons ($a_form)
 editQuestion (ilPropertyFormGUI $a_form=null)
 saveSync ()
 saveReturn ()
 saveForm ()
 save ($a_return=false, $a_sync=false)
 copySyncForm ()
 syncCopies ()
 originalSyncForm ()
 sync ()
 cancelSync ()
 redirectAfterSaving ($a_return=false)
 Redirect to calling survey or to edit form.
 cancel ()
 getMaterialOutput ()
 Creates the HTML output of the question material(s)
 renderChart ($a_id, $a_variables)
 initPhrasesForm ()
 addPhrase (ilPropertyFormGUI $a_form=null)
 Creates an output for the addition of phrases.
 addSelectedPhrase ()

Additional Inherited Members

- Static Public Member Functions inherited from SurveyQuestionGUI
static & _getQuestionGUI ($questiontype, $question_id=-1)
 Creates a question gui representation.
- Data Fields inherited from SurveyQuestionGUI
 $object
- Protected Attributes inherited from SurveyQuestionGUI
 $tpl
 $lng
 $ctrl
 $cumulated
 $parent_url

Detailed Description

MultipleChoice survey question GUI representation.

The SurveyMultipleChoiceQuestionGUI class encapsulates the GUI representation for multiple choice survey question types.

Author
Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m
Version
Id:
class.SurveyMultipleChoiceQuestionGUI.php 57964 2015-02-11 08:35:56Z jluetzen

Definition at line 37 of file class.SurveyMultipleChoiceQuestionGUI.php.

Member Function Documentation

SurveyMultipleChoiceQuestionGUI::addFieldsToEditForm ( ilPropertyFormGUI  $a_form)
protected

Reimplemented from SurveyQuestionGUI.

Definition at line 54 of file class.SurveyMultipleChoiceQuestionGUI.php.

References ilPropertyFormGUI\addItem(), ilFormPropertyGUI\setRequired(), ilNumberInputGUI\setSize(), and ilCheckboxInputGUI\setValue().

{
// orientation
$orientation = new ilRadioGroupInputGUI($this->lng->txt("orientation"), "orientation");
$orientation->setRequired(false);
$orientation->addOption(new ilRadioOption($this->lng->txt('vertical'), 0));
$orientation->addOption(new ilRadioOption($this->lng->txt('horizontal'), 1));
$a_form->addItem($orientation);
// minimum answers
$minanswers = new ilCheckboxInputGUI($this->lng->txt("use_min_answers"), "use_min_answers");
$minanswers->setValue(1);
$minanswers->setOptionTitle($this->lng->txt("use_min_answers_option"));
$minanswers->setRequired(FALSE);
$nranswers = new ilNumberInputGUI($this->lng->txt("nr_min_answers"), "nr_min_answers");
$nranswers->setSize(5);
$nranswers->setDecimals(0);
$nranswers->setRequired(false);
$nranswers->setMinValue(1);
$minanswers->addSubItem($nranswers);
$nrmaxanswers = new ilNumberInputGUI($this->lng->txt("nr_max_answers"), "nr_max_answers");
$nrmaxanswers->setSize(5);
$nrmaxanswers->setDecimals(0);
$nrmaxanswers->setRequired(false);
$nrmaxanswers->setMinValue(1);
$minanswers->addSubItem($nrmaxanswers);
$a_form->addItem($minanswers);
// Answers
include_once "./Modules/SurveyQuestionPool/classes/class.ilCategoryWizardInputGUI.php";
$answers = new ilCategoryWizardInputGUI($this->lng->txt("answers"), "answers");
$answers->setRequired(false);
$answers->setAllowMove(true);
$answers->setShowWizard(false);
$answers->setShowSavePhrase(false);
$answers->setUseOtherAnswer(true);
$answers->setShowNeutralCategory(true);
$answers->setNeutralCategoryTitle($this->lng->txt('svy_neutral_answer'));
$answers->setDisabledScale(false);
$a_form->addItem($answers);
// values
$orientation->setValue($this->object->getOrientation());
$minanswers->setChecked($this->object->use_min_answers);
$nranswers->setValue($this->object->nr_min_answers);
$nrmaxanswers->setValue($this->object->nr_max_answers);
if (!$this->object->getCategories()->getCategoryCount())
{
$this->object->getCategories()->addCategory("");
}
$answers->setValues($this->object->getCategories());
}

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SurveyMultipleChoiceQuestionGUI::getCumulatedResultsDetails (   $survey_id,
  $counter,
  $finished_ids 
)

Creates the detailed output of the cumulated results for the question.

Parameters
integer$survey_idThe database ID of the survey
integer$counterThe counter of the question position in the survey
Returns
string HTML text with the cumulated results private

Reimplemented from SurveyQuestionGUI.

Definition at line 474 of file class.SurveyMultipleChoiceQuestionGUI.php.

References ilObjSurvey\_getNrOfParticipants(), and SurveyQuestionGUI\renderChart().

{
if (count($this->cumulated) == 0)
{
if(!$finished_ids)
{
include_once "./Modules/Survey/classes/class.ilObjSurvey.php";
$nr_of_users = ilObjSurvey::_getNrOfParticipants($survey_id);
}
else
{
$nr_of_users = sizeof($finished_ids);
}
$this->cumulated =& $this->object->getCumulatedResults($survey_id, $nr_of_users, $finished_ids);
}
$output = "";
include_once "./Services/UICore/classes/class.ilTemplate.php";
$template = new ilTemplate("tpl.il_svy_svy_cumulated_results_detail.html", TRUE, TRUE, "Modules/Survey");
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("question"));
$questiontext = $this->object->getQuestiontext();
$template->setVariable("TEXT_OPTION_VALUE", $this->object->prepareTextareaOutput($questiontext, TRUE));
$template->parseCurrentBlock();
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("question_type"));
$template->setVariable("TEXT_OPTION_VALUE", $this->lng->txt($this->getQuestionType()));
$template->parseCurrentBlock();
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("users_answered"));
$template->setVariable("TEXT_OPTION_VALUE", $this->cumulated["USERS_ANSWERED"]);
$template->parseCurrentBlock();
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("users_skipped"));
$template->setVariable("TEXT_OPTION_VALUE", $this->cumulated["USERS_SKIPPED"]);
$template->parseCurrentBlock();
/*
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("mode"));
$template->setVariable("TEXT_OPTION_VALUE", $this->cumulated["MODE"]);
$template->parseCurrentBlock();
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("mode_nr_of_selections"));
$template->setVariable("TEXT_OPTION_VALUE", $this->cumulated["MODE_NR_OF_SELECTIONS"]);
$template->parseCurrentBlock();
*/
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("categories"));
$categories = "";
if (is_array($this->cumulated["variables"]))
{
foreach ($this->cumulated["variables"] as $key => $value)
{
$categories .= "<li>" . $value["title"] . ": n=" . $value["selected"] .
" (" . sprintf("%.2f", 100*$value["percentage"]) . "%)</li>";
}
}
$categories = "<ol>$categories</ol>";
$template->setVariable("TEXT_OPTION_VALUE", $categories);
$template->parseCurrentBlock();
// add text answers to detailed results
if (is_array($this->cumulated["textanswers"]))
{
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("freetext_answers"));
$html = "";
foreach ($this->cumulated["textanswers"] as $key => $answers)
{
$html .= $this->cumulated["variables"][$key]["title"] ."\n";
$html .= "<ul>\n";
foreach ($answers as $answer)
{
$html .= "<li>" . preg_replace("/\n/", "<br>\n", $answer) . "</li>\n";
}
$html .= "</ul>\n";
}
$template->setVariable("TEXT_OPTION_VALUE", $html);
$template->parseCurrentBlock();
}
// chart
$template->setCurrentBlock("detail_row");
$template->setVariable("TEXT_OPTION", $this->lng->txt("chart"));
$template->setVariable("TEXT_OPTION_VALUE", $this->renderChart("svy_ch_".$this->object->getId(), $this->cumulated["variables"]));
$template->parseCurrentBlock();
$template->setVariable("QUESTION_TITLE", "$counter. ".$this->object->getTitle());
return $template->get();
}

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SurveyMultipleChoiceQuestionGUI::getPrintView (   $question_title = 1,
  $show_questiontext = 1,
  $survey_id = null 
)

Creates a HTML representation of the question.

private

Definition at line 180 of file class.SurveyMultipleChoiceQuestionGUI.php.

References ilUtil\getHtmlPath(), ilUtil\getImagePath(), SurveyQuestionGUI\outQuestionText(), and ilUtil\prepareFormOutput().

{
$template = new ilTemplate("tpl.il_svy_qpl_mc_printview.html", TRUE, TRUE, "Modules/SurveyQuestionPool");
switch ($this->object->getOrientation())
{
case 0:
// vertical orientation
for ($i = 0; $i < $this->object->categories->getCategoryCount(); $i++)
{
$cat = $this->object->categories->getCategory($i);
if ($cat->other)
{
$template->setCurrentBlock("other_row");
$template->setVariable("IMAGE_CHECKBOX", ilUtil::getHtmlPath(ilUtil::getImagePath("checkbox_unchecked.png")));
$template->setVariable("ALT_CHECKBOX", $this->lng->txt("unchecked"));
$template->setVariable("TITLE_CHECKBOX", $this->lng->txt("unchecked"));
$template->setVariable("OTHER_LABEL", ilUtil::prepareFormOutput($cat->title));
$template->setVariable("OTHER_ANSWER", "&nbsp;");
$template->parseCurrentBlock();
}
else
{
$template->setCurrentBlock("mc_row");
$template->setVariable("IMAGE_CHECKBOX", ilUtil::getHtmlPath(ilUtil::getImagePath("checkbox_unchecked.png")));
$template->setVariable("ALT_CHECKBOX", $this->lng->txt("unchecked"));
$template->setVariable("TITLE_CHECKBOX", $this->lng->txt("unchecked"));
$template->setVariable("TEXT_MC", ilUtil::prepareFormOutput($cat->title));
$template->parseCurrentBlock();
}
}
break;
case 1:
// horizontal orientation
for ($i = 0; $i < $this->object->categories->getCategoryCount(); $i++)
{
$template->setCurrentBlock("checkbox_col");
$template->setVariable("IMAGE_CHECKBOX", ilUtil::getHtmlPath(ilUtil::getImagePath("checkbox_unchecked.png")));
$template->setVariable("ALT_CHECKBOX", $this->lng->txt("unchecked"));
$template->setVariable("TITLE_CHECKBOX", $this->lng->txt("unchecked"));
$template->parseCurrentBlock();
}
for ($i = 0; $i < $this->object->categories->getCategoryCount(); $i++)
{
$cat = $this->object->categories->getCategory($i);
if ($cat->other)
{
$template->setCurrentBlock("other_text_col");
$template->setVariable("OTHER_LABEL", ilUtil::prepareFormOutput($cat->title));
$template->setVariable("OTHER_ANSWER", "&nbsp;");
$template->parseCurrentBlock();
}
else
{
$template->setCurrentBlock("text_col");
$template->setVariable("TEXT_MC", ilUtil::prepareFormOutput($cat->title));
$template->parseCurrentBlock();
}
}
break;
}
if ($this->object->use_min_answers)
{
$template->setCurrentBlock('min_max_msg');
if ($this->object->nr_min_answers > 0 && $this->object->nr_max_answers > 0)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_min_max_nr_answers'), $this->object->nr_min_answers, $this->object->nr_max_answers));
}
else if ($this->object->nr_min_answers > 0)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_min_nr_answers'), $this->object->nr_min_answers));
}
else if ($this->object->nr_max_answers > 0)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_max_nr_answers'), $this->object->nr_max_answers));
}
$template->parseCurrentBlock();
}
if ($show_questiontext)
{
$this->outQuestionText($template);
}
if ($question_title)
{
$template->setVariable("QUESTION_TITLE", $this->object->getTitle());
}
$template->parseCurrentBlock();
return $template->get();
}

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SurveyMultipleChoiceQuestionGUI::getWorkingForm (   $working_data = "",
  $question_title = 1,
  $show_questiontext = 1,
  $error_message = "",
  $survey_id = null 
)

Creates the question output form for the learner.

public

Reimplemented from SurveyQuestionGUI.

Definition at line 280 of file class.SurveyMultipleChoiceQuestionGUI.php.

References SurveyQuestionGUI\getMaterialOutput(), SurveyQuestionGUI\outQuestionText(), and ilUtil\prepareFormOutput().

{
$template = new ilTemplate("tpl.il_svy_out_mc.html", TRUE, TRUE, "Modules/SurveyQuestionPool");
$template->setCurrentBlock("material");
$template->setVariable("TEXT_MATERIAL", $this->getMaterialOutput());
$template->parseCurrentBlock();
switch ($this->object->getOrientation())
{
case 0:
// vertical orientation
for ($i = 0; $i < $this->object->categories->getCategoryCount(); $i++)
{
$cat = $this->object->categories->getCategory($i);
if ($cat->other)
{
$template->setCurrentBlock("other_row");
if (strlen($cat->title))
{
$template->setVariable("OTHER_LABEL", $cat->title);
}
$template->setVariable("VALUE_MC", ($cat->scale) ? ($cat->scale - 1) : $i);
$template->setVariable("QUESTION_ID", $this->object->getId());
if (is_array($working_data))
{
foreach ($working_data as $value)
{
if (strlen($value["value"]))
{
if ($value["value"] == $cat->scale-1)
{
$template->setVariable("OTHER_VALUE", ' value="' . ilUtil::prepareFormOutput($value['textanswer']) . '"');
if (!$value['uncheck'])
{
$template->setVariable("CHECKED_MC", " checked=\"checked\"");
}
}
}
}
}
$template->parseCurrentBlock();
}
else
{
$template->setCurrentBlock("mc_row");
if ($cat->neutral) $template->setVariable('ROWCLASS', ' class="neutral"');
$template->setVariable("TEXT_MC", ilUtil::prepareFormOutput($cat->title));
$template->setVariable("VALUE_MC", ($cat->scale) ? ($cat->scale - 1) : $i);
$template->setVariable("QUESTION_ID", $this->object->getId());
if (is_array($working_data))
{
foreach ($working_data as $value)
{
if (strlen($value["value"]))
{
if ($value["value"] == $cat->scale-1)
{
if (!$value['uncheck'])
{
$template->setVariable("CHECKED_MC", " checked=\"checked\"");
}
}
}
}
}
$template->parseCurrentBlock();
}
$template->touchBlock('outer_row');
}
break;
case 1:
// horizontal orientation
// #15477 - reverting the categorizing of answers
for ($i = 0; $i < $this->object->categories->getCategoryCount(); $i++)
{
$cat = $this->object->categories->getCategory($i);
// checkbox
$template->setCurrentBlock("checkbox_col");
if ($cat->neutral) $template->setVariable('COLCLASS', ' neutral');
$template->setVariable("VALUE_MC", ($cat->scale) ? ($cat->scale - 1) : $i);
$template->setVariable("QUESTION_ID", $this->object->getId());
if (is_array($working_data))
{
foreach ($working_data as $value)
{
if (strlen($value["value"]))
{
if ($value["value"] == $cat->scale-1)
{
if (!$value['uncheck'])
{
$template->setVariable("CHECKED_MC", " checked=\"checked\"");
}
}
}
}
}
$template->parseCurrentBlock();
// answer & input
if ($cat->other)
{
$template->setCurrentBlock("text_other_col");
$template->setVariable("VALUE_MC", ($cat->scale) ? ($cat->scale - 1) : $i);
$template->setVariable("QUESTION_ID", $this->object->getId());
if (strlen($cat->title))
{
$template->setVariable("OTHER_LABEL", $cat->title);
}
if (is_array($working_data))
{
foreach ($working_data as $value)
{
if (strlen($value["value"]))
{
if ($value["value"] == $cat->scale-1)
{
$template->setVariable("OTHER_VALUE", ' value="' . ilUtil::prepareFormOutput($value['textanswer']) . '"');
}
}
}
}
$template->parseCurrentBlock();
}
// answer
else
{
$template->setCurrentBlock("text_col");
if ($cat->neutral) $template->setVariable('COLCLASS', ' neutral');
$template->setVariable("VALUE_MC", ($cat->scale) ? ($cat->scale - 1) : $i);
$template->setVariable("TEXT_MC", ilUtil::prepareFormOutput($cat->title));
$template->setVariable("QUESTION_ID", $this->object->getId());
$template->parseCurrentBlock();
}
$template->touchBlock('text_outer_col');
}
break;
}
$template->setCurrentBlock("question_data");
if ($this->object->use_min_answers)
{
$template->setCurrentBlock('min_max_msg');
if ($this->object->nr_min_answers > 0 && $this->object->nr_max_answers > 0)
{
if ($this->object->nr_min_answers == $this->object->nr_max_answers)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_min_max_exact_answers'), $this->object->nr_min_answers));
}
else
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_min_max_nr_answers'), $this->object->nr_min_answers, $this->object->nr_max_answers));
}
}
else if ($this->object->nr_min_answers > 0)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_min_nr_answers'), $this->object->nr_min_answers));
}
else if ($this->object->nr_max_answers > 0)
{
$template->setVariable('MIN_MAX_MSG', sprintf($this->lng->txt('msg_max_nr_answers'), $this->object->nr_max_answers));
}
$template->parseCurrentBlock();
}
if (strcmp($error_message, "") != 0)
{
$template->setVariable("ERROR_MESSAGE", "<p class=\"warning\">$error_message</p>");
}
if ($show_questiontext)
{
$this->outQuestionText($template);
}
if ($question_title)
{
$template->setVariable("QUESTION_TITLE", $this->object->getTitle());
}
$template->parseCurrentBlock();
return $template->get();
}

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SurveyMultipleChoiceQuestionGUI::importEditFormValues ( ilPropertyFormGUI  $a_form)
protected

Reimplemented from SurveyQuestionGUI.

Definition at line 153 of file class.SurveyMultipleChoiceQuestionGUI.php.

References $_POST, and ilPropertyFormGUI\getInput().

{
$this->object->setOrientation($a_form->getInput("orientation"));
$this->object->use_other_answer = ($a_form->getInput('use_other_answer')) ? 1 : 0;
$this->object->other_answer_label = $this->object->use_other_answer ? $a_form->getInput('other_answer_label') : null;
$this->object->use_min_answers = ($a_form->getInput('use_min_answers')) ? true : false;
$this->object->nr_min_answers = ($a_form->getInput('nr_min_answers') > 0) ? $a_form->getInput('nr_min_answers') : null;
$this->object->nr_max_answers = ($a_form->getInput('nr_max_answers') > 0) ? $a_form->getInput('nr_max_answers') : null;
$this->object->label = $a_form->getInput('label');
$this->object->categories->flushCategories();
foreach ($_POST['answers']['answer'] as $key => $value)
{
if (strlen($value)) $this->object->getCategories()->addCategory($value, $_POST['answers']['other'][$key], 0, null, $_POST['answers']['scale'][$key]);
}
if (strlen($_POST['answers']['neutral']))
{
$this->object->getCategories()->addCategory($_POST['answers']['neutral'], 0, 1, null, $_POST['answers_neutral_scale']);
}
}

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SurveyMultipleChoiceQuestionGUI::initObject ( )
protected

Reimplemented from SurveyQuestionGUI.

Definition at line 39 of file class.SurveyMultipleChoiceQuestionGUI.php.

{
include_once "./Modules/SurveyQuestionPool/classes/class.SurveyMultipleChoiceQuestion.php";
$this->object = new SurveyMultipleChoiceQuestion();
}
SurveyMultipleChoiceQuestionGUI::setQuestionTabs ( )

Reimplemented from SurveyQuestionGUI.

Definition at line 49 of file class.SurveyMultipleChoiceQuestionGUI.php.

References SurveyQuestionGUI\setQuestionTabsForClass().

{
$this->setQuestionTabsForClass("surveymultiplechoicequestiongui");
}

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SurveyMultipleChoiceQuestionGUI::validateEditForm ( ilPropertyFormGUI  $a_form)
protected

Reimplemented from SurveyQuestionGUI.

Definition at line 111 of file class.SurveyMultipleChoiceQuestionGUI.php.

References $_POST, $errors, ilPropertyFormGUI\getInput(), ilPropertyFormGUI\getItemByPostVar(), and ilUtil\sendFailure().

{
if($a_form->getInput("use_min_answers"))
{
// #13927 - see importEditFormValues()
$cnt_answers = 0;
foreach ($_POST['answers']['answer'] as $key => $value)
{
if (strlen($value))
{
$cnt_answers++;
}
}
if (strlen($_POST['answers']['neutral']))
{
$cnt_answers++;
}
/* this would be the DB-values
$cnt_answers = $a_form->getItemByPostVar("answers");
$cnt_answers = $cnt_answers->getCategoryCount();
*/
$min_anwers = $a_form->getInput("nr_min_answers");
$max_anwers = $a_form->getInput("nr_max_answers");
if ($min_anwers &&
$min_anwers > $cnt_answers)
{
$a_form->getItemByPostVar("nr_min_answers")->setAlert($this->lng->txt('err_minvalueganswers'));
$errors = true;
}
if ($max_anwers > 0 &&
($max_anwers > $cnt_answers || $max_anwers < $min_anwers))
{
$a_form->getItemByPostVar("nr_max_answers")->setAlert($this->lng->txt('err_maxvaluegeminvalue'));
$errors = true;
}
}
ilUtil::sendFailure($this->lng->txt('form_input_not_valid'));
return !$errors;
}

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The documentation for this class was generated from the following file: