private function eval_route()
{
$route = URI::current();
$formula = $this->get_formula($route, $action_count);
$m = new EvalMath();
$result = $m->e($formula);
if ($action_count <= 10 && $result !== false) {
return round($result, 0, PHP_ROUND_HALF_UP);
} else {
return 'Incorrect arithmetic route';
}
}
/**
* Check input, strip slashes etc. set alert, if input is not ok.
*
* @return boolean Input ok, true/false
*/
function checkInput()
{
global $lng;
$_POST[$this->getPostVar()] = ilUtil::stripSlashes($_POST[$this->getPostVar()]);
if ($this->getRequired() && trim($_POST[$this->getPostVar()]) == "") {
$this->setAlert($lng->txt("msg_input_is_required"));
return false;
} else {
$eval = new EvalMath();
$eval->suppress_errors = true;
$result = $eval->e(str_replace(",", ".", ilUtil::stripSlashes($_POST[$this->getPostVar()], FALSE)));
if ($result === false) {
$this->setAlert($lng->txt("form_msg_formula_is_required"));
return false;
}
}
return $this->checkSubItemsInput();
}
/**
* Checks the range limits
*
* Checks the Range limits Upper and Lower for their correctness
*
* @return boolean
*/
public function checkRange()
{
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
if ($eval->e($_POST["rang_lower_limit"]) !== FALSE and $eval->e($_POST["range_upper_limit"]) !== FALSE) {
if ($eval->e($_POST["rang_lower_limit"]) < $eval->e($_POST["range_upper_limit"])) {
return TRUE;
} else {
return FALSE;
}
}
return FALSE;
}
/**
* Returns the points, a learner has reached answering the question.
* The points are calculated from the given answers.
*
* @access public
* @param integer $active_id
* @param integer $pass
* @param boolean $returndetails (deprecated !!)
* @return integer/array $points/$details (array $details is deprecated !!)
*/
public function calculateReachedPoints($active_id, $pass = NULL, $returndetails = FALSE)
{
global $ilDB;
$found_value1 = array();
$found_value2 = array();
$detailed = array();
if (is_null($pass)) {
$pass = $this->getSolutionMaxPass($active_id);
}
$result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s", array("integer", "integer", "integer"), array($active_id, $this->getId(), $pass));
$user_result = array();
while ($data = $ilDB->fetchAssoc($result)) {
if (strcmp($data["value2"], "") != 0) {
$user_result[$data["value1"]] = array("gap_id" => $data["value1"], "value" => $data["value2"]);
}
}
$points = 0;
$counter = 0;
$solution_values_text = array();
// for identical scoring checks
$solution_values_select = array();
// for identical scoring checks
$solution_values_numeric = array();
// for identical scoring checks
foreach ($user_result as $gap_id => $value) {
if (array_key_exists($gap_id, $this->gaps)) {
switch ($this->gaps[$gap_id]->getType()) {
case CLOZE_TEXT:
$gappoints = 0;
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
$gotpoints = $this->getTextgapPoints($answer->getAnswertext(), $value["value"], $answer->getPoints());
if ($gotpoints > $gappoints) {
$gappoints = $gotpoints;
}
}
if (!$this->getIdenticalScoring()) {
// check if the same solution text was already entered
if (in_array($value["value"], $solution_values_text) && $gappoints > 0) {
$gappoints = 0;
}
}
$points += $gappoints;
$detailed[$gap_id] = array("points" => $gappoints, "best" => $this->getMaximumGapPoints($gap_id) == $gappoints ? TRUE : FALSE, "positive" => $gappoints > 0 ? TRUE : FALSE);
array_push($solution_values_text, $value["value"]);
break;
case CLOZE_NUMERIC:
$gappoints = 0;
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
$gotpoints = $this->getNumericgapPoints($answer->getAnswertext(), $value["value"], $answer->getPoints(), $answer->getLowerBound(), $answer->getUpperBound());
if ($gotpoints > $gappoints) {
$gappoints = $gotpoints;
}
}
if (!$this->getIdenticalScoring()) {
// check if the same solution value was already entered
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
$found_value = FALSE;
foreach ($solution_values_numeric as $solval) {
if ($eval->e($solval) == $eval->e($value["value"])) {
$found_value = TRUE;
}
}
if ($found_value && $gappoints > 0) {
$gappoints = 0;
}
}
$points += $gappoints;
$detailed[$gap_id] = array("points" => $gappoints, "best" => $this->getMaximumGapPoints($gap_id) == $gappoints ? TRUE : FALSE, "positive" => $gappoints > 0 ? TRUE : FALSE);
array_push($solution_values_numeric, $value["value"]);
break;
case CLOZE_SELECT:
if ($value["value"] >= 0) {
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
if ($value["value"] == $answer->getOrder()) {
$answerpoints = $answer->getPoints();
if (!$this->getIdenticalScoring()) {
// check if the same solution value was already entered
if (in_array($answer->getAnswertext(), $solution_values_select) && $answerpoints > 0) {
$answerpoints = 0;
}
}
$points += $answerpoints;
$detailed[$gap_id] = array("points" => $answerpoints, "best" => $this->getMaximumGapPoints($gap_id) == $answerpoints ? TRUE : FALSE, "positive" => $answerpoints > 0 ? TRUE : FALSE);
array_push($solution_values_select, $answer->getAnswertext());
}
}
}
break;
}
}
}
if ($returndetails) {
return $detailed;
} else {
return $points;
}
}
/**
* Checks for a given value within the range
*
* @param double $value The value to check
* @return boolean TRUE if the value is in the range, FALSE otherwise
* @access public
* @see $upperlimit
* @see $lowerlimit
*/
function contains($value)
{
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
$result = $eval->e($value);
if ($result === FALSE || $result === TRUE) {
return FALSE;
}
if ($result >= $eval->e($this->getLowerLimit()) && $result <= $eval->e($this->getUpperLimit())) {
return TRUE;
} else {
return FALSE;
}
}
/**
* Checks for a given value within the range
*
* Checks for a given value within the range
*
* @param double $value The value to check
*
* @return boolean TRUE if the value is in the range, FALSE otherwise
*
* @see $upperlimit
* @see $lowerlimit
*/
public function contains($value)
{
require_once './Services/Math/classes/class.EvalMath.php';
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
$result = $eval->e($value);
if ($result === FALSE || $result === TRUE) {
return FALSE;
}
if ($result >= $eval->e($this->lowerlimit) && $result <= $eval->e($this->upperlimit)) {
return TRUE;
} else {
return FALSE;
}
}
/**
* Returns a QTI xml representation of the question
*
* Returns a QTI xml representation of the question and sets the internal
* domxml variable with the DOM XML representation of the QTI xml representation
*
* @return string The QTI xml representation of the question
* @access public
*/
function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle = false, $test_output = false, $force_image_references = false)
{
global $ilias;
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
include_once "./Services/Xml/classes/class.ilXmlWriter.php";
$a_xml_writer = new ilXmlWriter();
// set xml header
$a_xml_writer->xmlHeader();
$a_xml_writer->xmlStartTag("questestinterop");
$attrs = array("ident" => "il_" . IL_INST_ID . "_qst_" . $this->object->getId(), "title" => $this->object->getTitle(), "maxattempts" => $this->object->getNrOfTries());
$a_xml_writer->xmlStartTag("item", $attrs);
// add question description
$a_xml_writer->xmlElement("qticomment", NULL, $this->object->getComment());
// add estimated working time
$workingtime = $this->object->getEstimatedWorkingTime();
$duration = sprintf("P0Y0M0DT%dH%dM%dS", $workingtime["h"], $workingtime["m"], $workingtime["s"]);
$a_xml_writer->xmlElement("duration", NULL, $duration);
// add ILIAS specific metadata
$a_xml_writer->xmlStartTag("itemmetadata");
$a_xml_writer->xmlStartTag("qtimetadata");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "ILIAS_VERSION");
$a_xml_writer->xmlElement("fieldentry", NULL, $ilias->getSetting("ilias_version"));
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "QUESTIONTYPE");
$a_xml_writer->xmlElement("fieldentry", NULL, CLOZE_TEST_IDENTIFIER);
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "AUTHOR");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getAuthor());
$a_xml_writer->xmlEndTag("qtimetadatafield");
// additional content editing information
$this->addAdditionalContentEditingModeInformation($a_xml_writer);
$this->addGeneralMetadata($a_xml_writer);
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "textgaprating");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getTextgapRating());
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "fixedTextLength");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getFixedTextLength());
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "identicalScoring");
$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getIdenticalScoring());
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlStartTag("qtimetadatafield");
$a_xml_writer->xmlElement("fieldlabel", NULL, "combinations");
$a_xml_writer->xmlElement("fieldentry", NULL, base64_encode(json_encode($this->object->getGapCombinations())));
$a_xml_writer->xmlEndTag("qtimetadatafield");
$a_xml_writer->xmlEndTag("qtimetadata");
$a_xml_writer->xmlEndTag("itemmetadata");
// PART I: qti presentation
$attrs = array("label" => $this->object->getTitle());
$a_xml_writer->xmlStartTag("presentation", $attrs);
// add flow to presentation
$a_xml_writer->xmlStartTag("flow");
$questionText = $this->object->getQuestion() ? $this->object->getQuestion() : ' ';
$this->object->addQTIMaterial($a_xml_writer, $questionText);
$text_parts = preg_split("/\\[gap.*?\\[\\/gap\\]/", $this->object->getClozeText());
// add material with question text to presentation
for ($i = 0; $i <= $this->object->getGapCount(); $i++) {
$this->object->addQTIMaterial($a_xml_writer, $text_parts[$i]);
if ($i < $this->object->getGapCount()) {
// add gap
$gap = $this->object->getGap($i);
switch ($gap->getType()) {
case CLOZE_SELECT:
// comboboxes
$attrs = array("ident" => "gap_{$i}", "rcardinality" => "Single");
$a_xml_writer->xmlStartTag("response_str", $attrs);
$solution = $this->object->getSuggestedSolution($i);
if (count($solution)) {
if (preg_match("/il_(\\d*?)_(\\w+)_(\\d+)/", $solution["internal_link"], $matches)) {
$attrs = array("label" => "suggested_solution");
$a_xml_writer->xmlStartTag("material", $attrs);
$intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
if (strcmp($matches[1], "") != 0) {
$intlink = $solution["internal_link"];
}
$a_xml_writer->xmlElement("mattext", NULL, $intlink);
$a_xml_writer->xmlEndTag("material");
}
}
$attrs = array("shuffle" => $gap->getShuffle() ? "Yes" : "No");
$a_xml_writer->xmlStartTag("render_choice", $attrs);
// add answers
foreach ($gap->getItems() as $answeritem) {
$attrs = array("ident" => $answeritem->getOrder());
$a_xml_writer->xmlStartTag("response_label", $attrs);
$a_xml_writer->xmlStartTag("material");
$a_xml_writer->xmlElement("mattext", NULL, $answeritem->getAnswertext());
$a_xml_writer->xmlEndTag("material");
$a_xml_writer->xmlEndTag("response_label");
}
$a_xml_writer->xmlEndTag("render_choice");
$a_xml_writer->xmlEndTag("response_str");
break;
case CLOZE_TEXT:
// text fields
$attrs = array("ident" => "gap_{$i}", "rcardinality" => "Single");
$a_xml_writer->xmlStartTag("response_str", $attrs);
$solution = $this->object->getSuggestedSolution($i);
if (count($solution)) {
if (preg_match("/il_(\\d*?)_(\\w+)_(\\d+)/", $solution["internal_link"], $matches)) {
$attrs = array("label" => "suggested_solution");
$a_xml_writer->xmlStartTag("material", $attrs);
$intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
if (strcmp($matches[1], "") != 0) {
$intlink = $solution["internal_link"];
}
$a_xml_writer->xmlElement("mattext", NULL, $intlink);
$a_xml_writer->xmlEndTag("material");
}
}
$attrs = array("fibtype" => "String", "prompt" => "Box", "columns" => $gap->getGapSize());
$a_xml_writer->xmlStartTag("render_fib", $attrs);
$a_xml_writer->xmlEndTag("render_fib");
$a_xml_writer->xmlEndTag("response_str");
break;
case CLOZE_NUMERIC:
// numeric fields
$attrs = array("ident" => "gap_{$i}", "numtype" => "Decimal", "rcardinality" => "Single");
$a_xml_writer->xmlStartTag("response_num", $attrs);
$solution = $this->object->getSuggestedSolution($i);
if (count($solution)) {
if (preg_match("/il_(\\d*?)_(\\w+)_(\\d+)/", $solution["internal_link"], $matches)) {
$attrs = array("label" => "suggested_solution");
$a_xml_writer->xmlStartTag("material", $attrs);
$intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
if (strcmp($matches[1], "") != 0) {
$intlink = $solution["internal_link"];
}
$a_xml_writer->xmlElement("mattext", NULL, $intlink);
$a_xml_writer->xmlEndTag("material");
}
}
$answeritem = $gap->getItem(0);
$attrs = array("fibtype" => "Decimal", "prompt" => "Box", "columns" => $gap->getGapSize());
if (is_object($answeritem)) {
if ($eval->e($answeritem->getLowerBound()) !== FALSE) {
$attrs["minnumber"] = $answeritem->getLowerBound();
}
if ($eval->e($answeritem->getUpperBound()) !== FALSE) {
$attrs["maxnumber"] = $answeritem->getUpperBound();
}
}
$a_xml_writer->xmlStartTag("render_fib", $attrs);
$a_xml_writer->xmlEndTag("render_fib");
$a_xml_writer->xmlEndTag("response_num");
break;
}
}
}
$a_xml_writer->xmlEndTag("flow");
$a_xml_writer->xmlEndTag("presentation");
// PART II: qti resprocessing
$a_xml_writer->xmlStartTag("resprocessing");
$a_xml_writer->xmlStartTag("outcomes");
$a_xml_writer->xmlStartTag("decvar");
$a_xml_writer->xmlEndTag("decvar");
$a_xml_writer->xmlEndTag("outcomes");
// add response conditions
for ($i = 0; $i < $this->object->getGapCount(); $i++) {
$gap = $this->object->getGap($i);
switch ($gap->getType()) {
case CLOZE_SELECT:
foreach ($gap->getItems() as $answer) {
$attrs = array("continue" => "Yes");
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
$attrs = array("respident" => "gap_{$i}");
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
$a_xml_writer->xmlEndTag("conditionvar");
// qti setvar
$attrs = array("action" => "Add");
$a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
// qti displayfeedback
$linkrefid = "";
$linkrefid = "{$i}" . "_Response_" . $answer->getOrder();
$attrs = array("feedbacktype" => "Response", "linkrefid" => $linkrefid);
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
break;
case CLOZE_TEXT:
foreach ($gap->getItems() as $answer) {
$attrs = array("continue" => "Yes");
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
$attrs = array("respident" => "gap_{$i}");
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
$a_xml_writer->xmlEndTag("conditionvar");
// qti setvar
$attrs = array("action" => "Add");
$a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
// qti displayfeedback
$linkrefid = "{$i}" . "_Response_" . $answer->getOrder();
$attrs = array("feedbacktype" => "Response", "linkrefid" => $linkrefid);
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
break;
case CLOZE_NUMERIC:
foreach ($gap->getItems() as $answer) {
$attrs = array("continue" => "Yes");
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
$attrs = array("respident" => "gap_{$i}");
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
$a_xml_writer->xmlEndTag("conditionvar");
// qti setvar
$attrs = array("action" => "Add");
$a_xml_writer->xmlElement("setvar", $attrs, $answer->getPoints());
// qti displayfeedback
$linkrefid = "{$i}" . "_Response_" . $answer->getOrder();
$attrs = array("feedbacktype" => "Response", "linkrefid" => $linkrefid);
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
break;
}
}
$feedback_allcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation($this->object->getId(), true);
if (strlen($feedback_allcorrect)) {
$attrs = array("continue" => "Yes");
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
for ($i = 0; $i < $this->object->getGapCount(); $i++) {
$gap = $this->object->getGap($i);
$indexes = $gap->getBestSolutionIndexes();
if ($i > 0) {
$a_xml_writer->xmlStartTag("and");
}
switch ($gap->getType()) {
case CLOZE_SELECT:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
case CLOZE_TEXT:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
case CLOZE_NUMERIC:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
}
if ($i > 0) {
$a_xml_writer->xmlEndTag("and");
}
}
$a_xml_writer->xmlEndTag("conditionvar");
// qti displayfeedback
$attrs = array("feedbacktype" => "Response", "linkrefid" => "response_allcorrect");
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
$feedback_onenotcorrect = $this->object->feedbackOBJ->getGenericFeedbackExportPresentation($this->object->getId(), false);
if (strlen($feedback_onenotcorrect)) {
$attrs = array("continue" => "Yes");
$a_xml_writer->xmlStartTag("respcondition", $attrs);
// qti conditionvar
$a_xml_writer->xmlStartTag("conditionvar");
$a_xml_writer->xmlStartTag("not");
for ($i = 0; $i < $this->object->getGapCount(); $i++) {
$gap = $this->object->getGap($i);
$indexes = $gap->getBestSolutionIndexes();
if ($i > 0) {
$a_xml_writer->xmlStartTag("and");
}
switch ($gap->getType()) {
case CLOZE_SELECT:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
case CLOZE_TEXT:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
case CLOZE_NUMERIC:
$k = 0;
foreach ($indexes as $key) {
if ($k > 0) {
$a_xml_writer->xmlStartTag("or");
}
$attrs = array("respident" => "gap_{$i}");
$answer = $gap->getItem($key);
$a_xml_writer->xmlElement("varequal", $attrs, $answer->getAnswertext());
if ($k > 0) {
$a_xml_writer->xmlEndTag("or");
}
$k++;
}
break;
}
if ($i > 0) {
$a_xml_writer->xmlEndTag("and");
}
}
$a_xml_writer->xmlEndTag("not");
$a_xml_writer->xmlEndTag("conditionvar");
// qti displayfeedback
$attrs = array("feedbacktype" => "Response", "linkrefid" => "response_onenotcorrect");
$a_xml_writer->xmlElement("displayfeedback", $attrs);
$a_xml_writer->xmlEndTag("respcondition");
}
$a_xml_writer->xmlEndTag("resprocessing");
// PART III: qti itemfeedback
for ($i = 0; $i < $this->object->getGapCount(); $i++) {
$gap = $this->object->getGap($i);
switch ($gap->getType()) {
case CLOZE_SELECT:
break;
case CLOZE_TEXT:
break;
case CLOZE_NUMERIC:
break;
}
/*foreach ($gap->getItems() as $answer)
{
$linkrefid = "$i" . "_Response_" . $answer->getOrder();
$attrs = array(
"ident" => $linkrefid,
"view" => "All"
);
$a_xml_writer->xmlStartTag("itemfeedback", $attrs);
// qti flow_mat
$a_xml_writer->xmlStartTag("flow_mat");
// $a_xml_writer->xmlStartTag("material");
// $a_xml_writer->xmlElement("mattext");
// $a_xml_writer->xmlEndTag("material");
$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
$this->object->getId(), $index
);
$this->object->addQTIMaterial($a_xml_writer, $fb);
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}*/
$attrs = array("ident" => $i, "view" => "All");
$a_xml_writer->xmlStartTag("itemfeedback", $attrs);
// qti flow_mat
$a_xml_writer->xmlStartTag("flow_mat");
// $a_xml_writer->xmlStartTag("material");
// $a_xml_writer->xmlElement("mattext");
// $a_xml_writer->xmlEndTag("material");
$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->object->getId(), $i);
$this->object->addQTIMaterial($a_xml_writer, $fb);
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
if (strlen($feedback_allcorrect)) {
$attrs = array("ident" => "response_allcorrect", "view" => "All");
$a_xml_writer->xmlStartTag("itemfeedback", $attrs);
// qti flow_mat
$a_xml_writer->xmlStartTag("flow_mat");
$this->object->addQTIMaterial($a_xml_writer, $feedback_allcorrect);
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
if (strlen($feedback_onenotcorrect)) {
$attrs = array("ident" => "response_onenotcorrect", "view" => "All");
$a_xml_writer->xmlStartTag("itemfeedback", $attrs);
// qti flow_mat
$a_xml_writer->xmlStartTag("flow_mat");
$this->object->addQTIMaterial($a_xml_writer, $feedback_onenotcorrect);
$a_xml_writer->xmlEndTag("flow_mat");
$a_xml_writer->xmlEndTag("itemfeedback");
}
$a_xml_writer->xmlEndTag("item");
$a_xml_writer->xmlEndTag("questestinterop");
$xml = $a_xml_writer->xmlDumpMem(FALSE);
if (!$a_include_header) {
$pos = strpos($xml, "?>");
$xml = substr($xml, $pos + 2);
}
return $xml;
}
$lang = array('en' => array('help' => 'Usage: %CMD% <expression>. Evaluate a mathematical expression and print results. Use _ and $ to referr to the last result.', '00' => '1 ... No ... 0 ... No ... UNDEFINED!', 'err_in' => 'Error in expression.', 'err_lib' => 'The "EvalMath" class by Miles Kaufmann is missing.'));
$plugin = Dog::getPlugin();
if ('' === ($message = $plugin->msg())) {
return $plugin->showHelp();
}
if (false !== ($last = Dog_Conf_Plug_User::getConf($plugin->getName(), Dog::getUID(), 'last', false))) {
$message = str_replace(array('_', '$'), $last, $message);
}
if ($message === '0^0') {
return $plugin->rply('00');
}
if ($message === 'pi') {
return $plugin->reply('4');
}
$path = GWF_PATH . 'core/inc/3p/EvalMath.php';
if (!Common::isFile($path)) {
return $plugin->rply('err_lib');
}
require_once $path;
$eval = new EvalMath();
if (false === ($result = $eval->e($message))) {
return $plugin->rply('err_in');
}
$result = sprintf('%.09f', $result);
if (strpos($result, '.') !== false) {
$result = rtrim($result, '0');
$result = rtrim($result, '.');
}
Dog_Conf_Plug_User::setConf($plugin->getName(), Dog::getUID(), 'last', $result);
Dog::reply($result);
public function checkInput()
{
$error = false;
$json = json_decode(ilUtil::stripSlashes($_POST['gap_json_post']));
$_POST['gap'] = ilUtil::stripSlashesRecursive($_POST['gap']);
$gaps_used_in_combination = array();
if (array_key_exists('gap_combination', $_POST)) {
$_POST['gap_combination'] = ilUtil::stripSlashesRecursive($_POST['gap_combination']);
$_POST['gap_combination_values'] = ilUtil::stripSlashesRecursive($_POST['gap_combination_values']);
$gap_with_points = array();
for ($i = 0; $i < count($_POST['gap_combination']['select']); $i++) {
foreach ($_POST['gap_combination']['select'][$i] as $key => $item) {
if ($item == 'none_selected_minus_one') {
return false;
}
$gaps_used_in_combination[$item] = $item;
$check_points_for_best_scoring = false;
foreach ($_POST['gap_combination_values'][$i] as $index => $answeritems) {
foreach ($answeritems as $answeritem) {
if ($answeritem == 'none_selected_minus_one') {
return false;
}
}
$points = $_POST['gap_combination']['points'][$i][$index];
if ($points > 0) {
$check_points_for_best_scoring = true;
}
}
if (!$check_points_for_best_scoring) {
return false;
}
}
}
}
if (isset($_POST['gap']) && is_array($_POST['gap'])) {
foreach ($_POST['gap'] as $key => $item) {
$_POST['clozetype_' . $key] = ilUtil::stripSlashes($_POST['clozetype_' . $key]);
$getType = $_POST['clozetype_' . $key];
$gapsize = $_POST['gap_' . $key . '_gapsize'];
$json[0][$key]->text_field_length = $gapsize > 0 ? $gapsize : '';
if ($getType == CLOZE_TEXT || $getType == CLOZE_SELECT) {
$_POST['gap_' . $key] = ilUtil::stripSlashesRecursive($_POST['gap_' . $key]);
$gapText = $_POST['gap_' . $key];
foreach ($gapText['answer'] as $row => $answer) {
if (!isset($answer) || $answer == '') {
$error = true;
}
}
$points_sum = 0;
if (array_key_exists('points', $gapText)) {
foreach ($gapText['points'] as $row => $points) {
if (isset($points) && $points != '' && is_numeric($points)) {
$points_sum += $points;
} else {
$error = true;
}
}
if (is_array($gap_with_points) && array_key_exists($key, $gap_with_points)) {
$points_sum += $gap_with_points[$key];
}
if ($points_sum == 0) {
if (!array_key_exists($key, $gaps_used_in_combination)) {
$error = true;
}
}
if ($getType == CLOZE_SELECT) {
$_POST['shuffle_' . $key] = ilUtil::stripSlashes($_POST['shuffle_' . $key]);
if (!isset($_POST['shuffle_' . $key])) {
$error = true;
}
}
} else {
$error = true;
}
}
if ($getType == CLOZE_NUMERIC) {
$_POST['gap_' . $key . 'numeric'] = ilUtil::stripSlashes($_POST['gap_' . $key . 'numeric'], FALSE);
$_POST['gap_' . $key . 'numeric_lower'] = ilUtil::stripSlashes($_POST['gap_' . $key . 'numeric_lower'], FALSE);
$_POST['gap_' . $key . 'numeric_upper'] = ilUtil::stripSlashes($_POST['gap_' . $key . 'numeric_upper'], FALSE);
$_POST['gap_' . $key . 'numeric_points'] = ilUtil::stripSlashes($_POST['gap_' . $key . 'numeric_points']);
$mark_errors = array('answer' => false, 'lower' => false, 'upper' => false, 'points' => false);
$eval = new EvalMath();
$eval->suppress_errors = true;
$formula = $_POST['gap_' . $key . '_numeric'];
$result = $eval->e(str_replace(',', '.', $_POST['gap_' . $key . '_numeric'], $formula));
if ($result === false) {
$error = true;
}
$lower = $_POST['gap_' . $key . '_numeric_lower'];
$assClozeTestObject = new assClozeTest();
$has_valid_chars = $assClozeTestObject->checkForValidFormula($lower);
$result = $eval->e(str_replace(',', '.', $lower), FALSE);
if ($result === false || !$has_valid_chars) {
$error = true;
}
$_POST['gap_' . $key . '_numeric_lower'] = $result;
$result = $eval->e(str_replace(',', '.', $_POST['gap_' . $key . '_numeric_upper']), FALSE);
if ($result === false) {
$error = true;
}
$_POST['gap_' . $key . '_numeric_upper'] = $result;
$points = $_POST['gap_' . $key . '_numeric_points'];
if (is_array($gap_with_points) && array_key_exists($key, $gap_with_points)) {
$points += $gap_with_points[$key];
}
if (!isset($points) || $points == '' || !is_numeric($points) || $points == 0) {
if (!array_key_exists($key, $gaps_used_in_combination)) {
$error = true;
}
}
$json[0][$key]->values[0]->error = $mark_errors;
}
}
}
$_POST['gap_json_post'] = json_encode($json);
return !$error;
}
protected function getNumericValueFromAnswerText()
{
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = true;
return $eval->e(str_replace(",", ".", ilUtil::stripSlashes($this->getAnswertext(), FALSE)));
}
/**
* @param $user_result
* @param $detailed
* @return array
*/
protected function calculateReachedPointsForSolution($user_result, &$detailed = null)
{
if ($detailed === null) {
$detailed = array();
}
$assClozeGapCombinationObj = new assClozeGapCombination();
$combinations[1] = array();
if ($assClozeGapCombinationObj->combinationExistsForQid($this->getId())) {
$combinations = $this->calculateCombinationResult($user_result);
$points = $combinations[0];
}
$counter = 0;
$solution_values_text = array();
// for identical scoring checks
$solution_values_select = array();
// for identical scoring checks
$solution_values_numeric = array();
// for identical scoring checks
foreach ($user_result as $gap_id => $value) {
if (is_string($value)) {
$value = array("value" => $value);
}
if (array_key_exists($gap_id, $this->gaps) && !array_key_exists($gap_id, $combinations[1])) {
switch ($this->gaps[$gap_id]->getType()) {
case CLOZE_TEXT:
$gappoints = 0;
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
$gotpoints = $this->getTextgapPoints($answer->getAnswertext(), $value["value"], $answer->getPoints());
if ($gotpoints > $gappoints) {
$gappoints = $gotpoints;
}
}
if (!$this->getIdenticalScoring()) {
// check if the same solution text was already entered
if (in_array($value["value"], $solution_values_text) && $gappoints > 0) {
$gappoints = 0;
}
}
$points += $gappoints;
$detailed[$gap_id] = array("points" => $gappoints, "best" => $this->getMaximumGapPoints($gap_id) == $gappoints ? TRUE : FALSE, "positive" => $gappoints > 0 ? TRUE : FALSE);
array_push($solution_values_text, $value["value"]);
break;
case CLOZE_NUMERIC:
$gappoints = 0;
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
$gotpoints = $this->getNumericgapPoints($answer->getAnswertext(), $value["value"], $answer->getPoints(), $answer->getLowerBound(), $answer->getUpperBound());
if ($gotpoints > $gappoints) {
$gappoints = $gotpoints;
}
}
if (!$this->getIdenticalScoring()) {
// check if the same solution value was already entered
include_once "./Services/Math/classes/class.EvalMath.php";
$eval = new EvalMath();
$eval->suppress_errors = TRUE;
$found_value = FALSE;
foreach ($solution_values_numeric as $solval) {
if ($eval->e($solval) == $eval->e($value["value"])) {
$found_value = TRUE;
}
}
if ($found_value && $gappoints > 0) {
$gappoints = 0;
}
}
$points += $gappoints;
$detailed[$gap_id] = array("points" => $gappoints, "best" => $this->getMaximumGapPoints($gap_id) == $gappoints ? TRUE : FALSE, "positive" => $gappoints > 0 ? TRUE : FALSE);
array_push($solution_values_numeric, $value["value"]);
break;
case CLOZE_SELECT:
if ($value["value"] >= 0) {
for ($order = 0; $order < $this->gaps[$gap_id]->getItemCount(); $order++) {
$answer = $this->gaps[$gap_id]->getItem($order);
if ($value["value"] == $answer->getOrder()) {
$answerpoints = $answer->getPoints();
if (!$this->getIdenticalScoring()) {
// check if the same solution value was already entered
if (in_array($answer->getAnswertext(), $solution_values_select) && $answerpoints > 0) {
$answerpoints = 0;
}
}
$points += $answerpoints;
$detailed[$gap_id] = array("points" => $answerpoints, "best" => $this->getMaximumGapPoints($gap_id) == $answerpoints ? TRUE : FALSE, "positive" => $answerpoints > 0 ? TRUE : FALSE);
array_push($solution_values_select, $answer->getAnswertext());
}
}
}
break;
}
}
}
return $points;
}
<form method="post" action="<?php
echo $_SERVER['PHP_SELF'];
?>
">
y(x) = <input type="text" name="function" value="<?php
echo isset($_POST['function']) ? htmlspecialchars($_POST['function']) : '';
?>
">
<input type="submit">
</form>
<?php
if (isset($_POST['function']) and $_POST['function']) {
include 'evalmath.class.php';
$m = new EvalMath();
$m->suppress_errors = true;
if ($m->evaluate('y(x) = ' . $_POST['function'])) {
print "\t<table border=\"1\">\n";
print "\t\t<tr><th>x</th><th>y(x)</th>\n";
for ($x = -2; $x <= 2; $x += 0.2) {
$x = round($x, 2);
print "\t\t<tr><td>{$x}</td><td>" . $m->e("y({$x})") . "</td></tr>\n";
}
print "\t</table>\n";
} else {
print "\t<p>Could not evaluate function: " . $m->last_error . "</p>\n";
}
}
?>
</body>
</html>
