Public Member Functions | Data Fields

assTextSubset Class Reference

Class for TextSubset questions. More...

Inheritance diagram for assTextSubset:
Collaboration diagram for assTextSubset:

Public Member Functions

 assTextSubset ($title="", $comment="", $author="", $owner=-1, $question="")
 assTextSubset constructor
 isComplete ()
 Returns true, if a TextSubset question is complete for use.
 fromXML (&$item, &$questionpool_id, &$tst_id, &$tst_object, &$question_counter, &$import_mapping)
 Creates a question from a QTI file.
 to_xml ($a_include_header=true, $a_include_binary=true, $a_shuffle=false, $test_output=false, $force_image_references=false)
 Returns a QTI xml representation of the question.
 saveToDb ($original_id="")
 Saves a assTextSubset object to a database.
 loadFromDb ($question_id)
 Loads a assTextSubset object from a database.
 setQuestion ($question="")
 Sets the TextSubset question.
 addAnswer ($answertext, $points, $answerorder)
 Adds an answer to the question.
 duplicate ($for_test=true, $title="", $author="", $owner="")
 Duplicates an assTextSubsetQuestion.
 copyObject ($target_questionpool, $title="")
 Copies an assTextSubset object.
 getQuestion ()
 Gets the TextSubset question text.
 getAnswerCount ()
 Returns the number of answers.
 getAnswer ($index=0)
 Returns an answer.
 deleteAnswer ($index=0)
 Deletes an answer.
 flushAnswers ()
 Deletes all answers.
 getMaximumPoints ()
 Returns the maximum points, a learner can reach answering the question.
getAvailableAnswers ()
 Returns the available answers for the question.
 isAnswerCorrect ($answers, $answer)
 Determines wheather a given answer is correct or not.
 getTextRating ()
 Returns the rating option for text comparisons.
 setTextRating ($a_text_rating)
 Sets the rating option for text comparisons.
 calculateReachedPoints ($active_id, $pass=NULL)
 Returns the points, a learner has reached answering the question.
 setCorrectAnswers ($a_correct_answers)
 Sets the number of correct answers needed to solve the question.
 getCorrectAnswers ()
 Returns the number of correct answers needed to solve the question.
 saveWorkingData ($active_id, $pass=NULL)
 Saves the learners input of the question to the database.
 syncWithOriginal ()
 getQuestionType ()
 Returns the question type of the question.
joinAnswers ()
 Returns the answers of the question as a comma separated string.
 getMaxTextboxWidth ()
 Returns the maximum width needed for the answer textboxes.
 getAdditionalTableName ()
 Returns the name of the additional question data table in the database.
 getAnswerTableName ()
 Returns the name of the answer table in the database.

Data Fields

 $question
 $answers
 $correctanswers
 $text_rating

Detailed Description

Class for TextSubset questions.

assTextSubset is a class for TextSubset questions. To solve a TextSubset question, a learner has to enter a TextSubsetal value in a defined range

Author:
Helmut Schottmüller <helmut.schottmueller@mac.com>
Nina Gharib <nina@wgserve.de>
Version:
Id:
class.assTextSubset.php 14646 2007-09-04 10:03:31Z hschottm

class.assTextSubset.php Assessment

Definition at line 38 of file class.assTextSubset.php.


Member Function Documentation

assTextSubset::addAnswer ( answertext,
points,
answerorder 
)

Adds an answer to the question.

Adds an answer to the question

public

Definition at line 649 of file class.assTextSubset.php.

References assQuestion::$points.

Referenced by fromXML().

        {
                include_once "./assessment/classes/class.assAnswerSimple.php";
                array_push($this->answers, new ASS_AnswerSimple($answertext, $points, $answerorder));
        }

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assTextSubset::assTextSubset ( title = "",
comment = "",
author = "",
owner = -1,
question = "" 
)

assTextSubset constructor

The constructor takes possible arguments an creates an instance of the assTextSubset object.

Parameters:
string $title A title string to describe the question
string $comment A comment string to describe the question
string $author A string containing the name of the questions author
integer $owner A TextSubsetal ID to identify the owner/creator
string $question The question string of the TextSubset question public
See also:
assQuestion:assQuestion()

Definition at line 89 of file class.assTextSubset.php.

References assQuestion::$author, assQuestion::$comment, assQuestion::$owner, $question, assQuestion::$title, and assQuestion::assQuestion().

        {
                $this->assQuestion($title, $comment, $author, $owner);
                $this->question = $question;
                $this->answers = array();
                $this->correctanswers = 0;
        }

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assTextSubset::calculateReachedPoints ( active_id,
pass = NULL 
)

Returns the points, a learner has reached answering the question.

Returns the points, a learner has reached answering the question The points are calculated from the given answers including checks for all special scoring options in the test container.

Parameters:
integer $user_id The database ID of the learner
integer $test_id The database Id of the test containing the question public

Definition at line 971 of file class.assTextSubset.php.

References $data, assQuestion::$points, $query, $result, getAvailableAnswers(), assQuestion::getId(), assQuestion::getSolutionMaxPass(), and isAnswerCorrect().

        {
                global $ilDB;
                
                $available_answers =& $this->getAvailableAnswers();
                $found_counter = 0;
                
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                $query = sprintf("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($pass . "")
                );
                $result = $ilDB->query($query);
                $points = 0;
                while ($data = $result->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $enteredtext = $data["value1"];
                        $index = $this->isAnswerCorrect($available_answers, $enteredtext);
                        if ($index !== FALSE)
                        {
                                unset($available_answers[$index]);
                                $points += $this->answers[$index]->getPoints();
                        }
                }

                $points = parent::calculateReachedPoints($active_id, $pass = NULL, $points);
                return $points;
        }

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assTextSubset::copyObject ( target_questionpool,
title = "" 
)

Copies an assTextSubset object.

Copies an assTextSubset object

public

Definition at line 713 of file class.assTextSubset.php.

References assQuestion::$title, assQuestion::_getOriginalId(), and assQuestion::getObjId().

        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $clone = $this;
                include_once ("./assessment/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                $source_questionpool = $this->getObjId();
                $clone->setObjId($target_questionpool);
                if ($title)
                {
                        $clone->setTitle($title);
                }
                $clone->saveToDb();

                // copy question page content
                $clone->copyPageOfQuestion($original_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($original_id);

                return $clone->id;
        }

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assTextSubset::deleteAnswer ( index = 0  ) 

Deletes an answer.

Deletes an answer with a given index. The index of the first answer is 0, the index of the second answer is 1 and so on.

Parameters:
integer $index A nonnegative index of the n-th answer public
See also:
$answers

Definition at line 799 of file class.assTextSubset.php.

        {
                if ($index < 0) return;
                if (count($this->answers) < 1) return;
                if ($index >= count($this->answers)) return;
                unset($this->answers[$index]);
                $this->answers = array_values($this->answers);
                for ($i = 0; $i < count($this->answers); $i++)
                {
                        if ($this->answers[$i]->getOrder() > $index)
                        {
                                $this->answers[$i]->setOrder($i);
                        }
                }
        }

assTextSubset::duplicate ( for_test = true,
title = "",
author = "",
owner = "" 
)

Duplicates an assTextSubsetQuestion.

Duplicates an assTextSubsetQuestion

public

Definition at line 662 of file class.assTextSubset.php.

References assQuestion::$author, assQuestion::$owner, assQuestion::$title, assQuestion::_getOriginalId(), and assQuestion::getId().

Referenced by fromXML().

        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $this_id = $this->getId();
                $clone = $this;
                include_once ("./assessment/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                if ($title)
                {
                        $clone->setTitle($title);
                }

                if ($author)
                {
                        $clone->setAuthor($author);
                }
                if ($owner)
                {
                        $clone->setOwner($owner);
                }

                if ($for_test)
                {
                        $clone->saveToDb($original_id);
                }
                else
                {
                        $clone->saveToDb();
                }

                // copy question page content
                $clone->copyPageOfQuestion($this_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($this_id);

                return $clone->id;
        }

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assTextSubset::flushAnswers (  ) 

Deletes all answers.

Deletes all answers

public

See also:
$answers

Definition at line 823 of file class.assTextSubset.php.

        {
                $this->answers = array();
        }

assTextSubset::fromXML ( &$  item,
&$  questionpool_id,
&$  tst_id,
&$  tst_object,
&$  question_counter,
&$  import_mapping 
)

Creates a question from a QTI file.

Receives parameters from a QTI parser and creates a valid ILIAS question object

Parameters:
object $item The QTI item object
integer $questionpool_id The id of the parent questionpool
integer $tst_id The id of the parent test if the question is part of a test
object $tst_object A reference to the parent test object
integer $question_counter A reference to a question counter to count the questions of an imported question pool
array $import_mapping An array containing references to included ILIAS objects public

Definition at line 136 of file class.assTextSubset.php.

References $_SESSION, $counter, $idx, assQuestion::$shuffle, ilObjQuestionPool::_getImportDirectory(), ilObjTest::_getImportDirectory(), ilRTE::_replaceMediaObjectImageSrc(), ilObjMediaObject::_saveTempFileAsMediaObject(), ilObjMediaObject::_saveUsage(), addAnswer(), duplicate(), getContent(), assQuestion::getId(), getQuestion(), assQuestion::QTIMaterialToString(), saveToDb(), assQuestion::setAuthor(), assQuestion::setComment(), setCorrectAnswers(), assQuestion::setEstimatedWorkingTime(), assQuestion::setObjId(), assQuestion::setOwner(), setQuestion(), assQuestion::setSuggestedSolution(), setTextRating(), and assQuestion::setTitle().

        {
                global $ilUser;

                // empty session variable for imported xhtml mobs
                unset($_SESSION["import_mob_xhtml"]);
                $presentation = $item->getPresentation(); 
                $duration = $item->getDuration();
                $shuffle = 0;
                $idents = array();
                $now = getdate();
                $created = sprintf("%04d%02d%02d%02d%02d%02d", $now['year'], $now['mon'], $now['mday'], $now['hours'], $now['minutes'], $now['seconds']);
                $gaps = array();
                foreach ($presentation->order as $entry)
                {
                        switch ($entry["type"])
                        {
                                case "response":
                                        $response = $presentation->response[$entry["index"]];
                                        if ($response->getResponseType() == RT_RESPONSE_STR)
                                        {
                                                array_push($idents, $response->getIdent());
                                        }
                                        break;
                        }
                }
                $responses = array();
                foreach ($item->resprocessing as $resprocessing)
                {
                        foreach ($resprocessing->respcondition as $respcondition)
                        {
                                $ident = "";
                                $correctness = 1;
                                $conditionvar = $respcondition->getConditionvar();
                                foreach ($conditionvar->order as $order)
                                {
                                        switch ($order["field"])
                                        {
                                                case "varsubset":
                                                        $respident = $conditionvar->varsubset[$order["index"]]->getRespident();
                                                        $content = $conditionvar->varsubset[$order["index"]]->getContent();
                                                        if (!is_array($responses[$respident])) $responses[$respident] = array();
                                                        $vars = split(",", $content);
                                                        foreach ($vars as $var)
                                                        {
                                                                array_push($responses[$respident], array("solution" => $var, "points" => ""));
                                                        }
                                                        break;
                                        }
                                }
                                foreach ($respcondition->setvar as $setvar)
                                {
                                        if ((strcmp($setvar->getVarname(), "matches") == 0) && ($setvar->getAction() == ACTION_ADD))
                                        {
                                                foreach ($responses[$respident] as $idx => $solutionarray)
                                                {
                                                        if (strlen($solutionarray["points"] == 0))
                                                        {
                                                                $responses[$respident][$idx]["points"] = $setvar->getContent();
                                                        }
                                                }
                                        }
                                }
                        }
                }

                $this->setTitle($item->getTitle());
                $this->setComment($item->getComment());
                $this->setAuthor($item->getAuthor());
                $this->setOwner($ilUser->getId());
                $this->setQuestion($this->QTIMaterialToString($item->getQuestiontext()));
                $this->setObjId($questionpool_id);
                $this->setEstimatedWorkingTime($duration["h"], $duration["m"], $duration["s"]);
                $textrating = $item->getMetadataEntry("textrating");
                if (strlen($textrating) == 0) $textrating = "ci";
                $this->setTextRating($textgap_rating);
                $this->setCorrectAnswers($item->getMetadataEntry("correctanswers"));
                $response = current($responses);
                $counter = 0;
                if (is_array($response))
                {
                        foreach ($response as $answer)
                        {
                                $this->addAnswer($answer["solution"], $answer["points"], $counter);
                                $counter++;
                        }
                }
                $this->saveToDb();
                if (count($item->suggested_solutions))
                {
                        foreach ($item->suggested_solutions as $suggested_solution)
                        {
                                $this->setSuggestedSolution($suggested_solution["solution"]->getContent(), $suggested_solution["gap_index"], true);
                        }
                        $this->saveToDb();
                }
                // handle the import of media objects in XHTML code
                if (is_array($_SESSION["import_mob_xhtml"]))
                {
                        include_once "./content/classes/Media/class.ilObjMediaObject.php";
                        include_once "./Services/RTE/classes/class.ilRTE.php";
                        foreach ($_SESSION["import_mob_xhtml"] as $mob)
                        {
                                if ($tst_id > 0)
                                {
                                        include_once "./assessment/classes/class.ilObjTest.php";
                                        $importfile = ilObjTest::_getImportDirectory() . "/" . $_SESSION["tst_import_subdir"] . "/" . $mob["uri"];
                                }
                                else
                                {
                                        include_once "./assessment/classes/class.ilObjQuestionPool.php";
                                        $importfile = ilObjQuestionPool::_getImportDirectory() . "/" . $_SESSION["qpl_import_subdir"] . "/" . $mob["uri"];
                                }
                                $media_object =& ilObjMediaObject::_saveTempFileAsMediaObject(basename($importfile), $importfile, FALSE);
                                ilObjMediaObject::_saveUsage($media_object->getId(), "qpl:html", $this->getId());
                                $this->setQuestion(ilRTE::_replaceMediaObjectImageSrc(str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $this->getQuestion()), 1));
                        }
                        $this->saveToDb();
                }
                if ($tst_id > 0)
                {
                        $q_1_id = $this->getId();
                        $question_id = $this->duplicate(true);
                        $tst_object->questions[$question_counter++] = $question_id;
                        $import_mapping[$item->getIdent()] = array("pool" => $q_1_id, "test" => $question_id);
                }
                else
                {
                        $import_mapping[$item->getIdent()] = array("pool" => $this->getId(), "test" => 0);
                }
                //$ilLog->write(strftime("%D %T") . ": finished import multiple choice question (single response)");
        }

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assTextSubset::getAdditionalTableName (  ) 

Returns the name of the additional question data table in the database.

Returns the name of the additional question data table in the database

Returns:
string The additional table name public

Reimplemented from assQuestion.

Definition at line 1215 of file class.assTextSubset.php.

        {
                return "qpl_question_textsubset";
        }

assTextSubset::getAnswer ( index = 0  ) 

Returns an answer.

Returns an answer with a given index. The index of the first answer is 0, the index of the second answer is 1 and so on.

Parameters:
integer $index A nonnegative index of the n-th answer
Returns:
object ASS_AnswerSimple-Object containing the answer public
See also:
$answers

Definition at line 780 of file class.assTextSubset.php.

        {
                if ($index < 0) return NULL;
                if (count($this->answers) < 1) return NULL;
                if ($index >= count($this->answers)) return NULL;

                return $this->answers[$index];
        }

assTextSubset::getAnswerCount (  ) 

Returns the number of answers.

Returns the number of answers

Returns:
integer The number of answers of the TextSubset question public
See also:
$ranges

Definition at line 764 of file class.assTextSubset.php.

        {
                return count($this->answers);
        }

assTextSubset::getAnswerTableName (  ) 

Returns the name of the answer table in the database.

Returns the name of the answer table in the database

Returns:
string The answer table name public

Reimplemented from assQuestion.

Definition at line 1228 of file class.assTextSubset.php.

        {
                return "qpl_answer_textsubset";
        }

& assTextSubset::getAvailableAnswers (  ) 

Returns the available answers for the question.

Returns the available answers for the question

private

See also:
$answers

Definition at line 863 of file class.assTextSubset.php.

Referenced by calculateReachedPoints().

        {
                $available_answers = array();
                foreach ($this->answers as $answer)
                {
                        array_push($available_answers, $answer->getAnswertext());
                }
                return $available_answers;
        }

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assTextSubset::getCorrectAnswers (  ) 

Returns the number of correct answers needed to solve the question.

Returns the number of correct answers needed to solve the question

Returns:
integer The number of correct answers public

Definition at line 1025 of file class.assTextSubset.php.

Referenced by getMaximumPoints(), saveToDb(), and to_xml().

        {
                return $this->correctanswers;
        }

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assTextSubset::getMaximumPoints (  ) 

Returns the maximum points, a learner can reach answering the question.

Returns the maximum points, a learner can reach answering the question

public

See also:
$points

Reimplemented from assQuestion.

Definition at line 836 of file class.assTextSubset.php.

References $counter, assQuestion::$points, and getCorrectAnswers().

Referenced by isComplete(), saveToDb(), and syncWithOriginal().

        {
                $points = array();
                foreach ($this->answers as $answer)
                {
                        if ($answer->getPoints() > 0)
                        {
                                array_push($points, $answer->getPoints());
                        }
                }
                rsort($points, SORT_NUMERIC);
                $maxpoints = 0;
                for ($counter = 0; $counter < $this->getCorrectAnswers(); $counter++)
                {
                        $maxpoints += $points[$counter];
                }
                return $maxpoints;
        }

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assTextSubset::getMaxTextboxWidth (  ) 

Returns the maximum width needed for the answer textboxes.

Returns the maximum width needed for the answer textboxes

Returns:
integer Maximum textbox width public

Definition at line 1196 of file class.assTextSubset.php.

Referenced by to_xml().

        {
                $maxwidth = 0;
                foreach ($this->answers as $answer)
                {
                        $len = strlen($answer->getAnswertext());
                        if ($len > $maxwidth) $maxwidth = $len;
                }
                return $maxwidth + 3;
        }

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assTextSubset::getQuestion (  ) 

Gets the TextSubset question text.

Gets the question string of the assTextSubset object

Returns:
string The question string of the assTextSubset object public
See also:
$question

Definition at line 750 of file class.assTextSubset.php.

Referenced by fromXML(), and to_xml().

        {
                return $this->question;
        }

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assTextSubset::getQuestionType (  ) 

Returns the question type of the question.

Returns the question type of the question

Returns:
integer The question type of the question public

Definition at line 1161 of file class.assTextSubset.php.

Referenced by saveToDb().

        {
                return 10;
        }

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assTextSubset::getTextRating (  ) 

Returns the rating option for text comparisons.

Returns the rating option for text comparisons

Returns:
string The rating option for text comparisons
See also:
$text_rating Public

Definition at line 927 of file class.assTextSubset.php.

Referenced by isAnswerCorrect(), saveToDb(), and to_xml().

        {
                return $this->text_rating;
        }

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assTextSubset::isAnswerCorrect ( answers,
answer 
)

Determines wheather a given answer is correct or not.

Returns the index of the found answer, if the given answer is in the set of correct answers and matchess the matching options, otherwise FALSE is returned

Parameters:
array $answers An array containing the correct answers
string $answer The text of the given answer
Returns:
mixed The index of the correct answer, FALSE otherwise public

Definition at line 885 of file class.assTextSubset.php.

References $answers, $key, and getTextRating().

Referenced by calculateReachedPoints().

        {
                $textrating = $this->getTextRating();
                foreach ($answers as $key => $value)
                {
                        switch ($textrating)
                        {
                                case TEXTGAP_RATING_CASEINSENSITIVE:
                                        if (strcmp(strtolower(utf8_decode($value)), strtolower(utf8_decode($answer))) == 0) return $key;
                                        break;
                                case TEXTGAP_RATING_CASESENSITIVE:
                                        if (strcmp(utf8_decode($value), utf8_decode($answer)) == 0) return $key;
                                        break;
                                case TEXTGAP_RATING_LEVENSHTEIN1:
                                        if (levenshtein(utf8_decode($value), utf8_decode($answer)) <= 1) return $key;
                                        break;
                                case TEXTGAP_RATING_LEVENSHTEIN2:
                                        if (levenshtein(utf8_decode($value), utf8_decode($answer)) <= 2) return $key;
                                        break;
                                case TEXTGAP_RATING_LEVENSHTEIN3:
                                        if (levenshtein(utf8_decode($value), utf8_decode($answer)) <= 3) return $key;
                                        break;
                                case TEXTGAP_RATING_LEVENSHTEIN4:
                                        if (levenshtein(utf8_decode($value), utf8_decode($answer)) <= 4) return $key;
                                        break;
                                case TEXTGAP_RATING_LEVENSHTEIN5:
                                        if (levenshtein(utf8_decode($value), utf8_decode($answer)) <= 5) return $key;
                                        break;
                        }
                }
                return FALSE;
        }

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assTextSubset::isComplete (  ) 

Returns true, if a TextSubset question is complete for use.

Returns true, if a TextSubset question is complete for use

Returns:
boolean True, if the TextSubset question is complete for use, otherwise false public

Reimplemented from assQuestion.

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

References getMaximumPoints().

Referenced by saveToDb(), and syncWithOriginal().

        {
                if (($this->title) and ($this->author) and ($this->question) and (count($this->answers) >= $this->correctanswers) and ($this->getMaximumPoints() > 0))
                {
                        return true;
                }
                        else
                {
                        return false;
                }
        }

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& assTextSubset::joinAnswers (  ) 

Returns the answers of the question as a comma separated string.

Returns the answers of the question as a comma separated string

Returns:
string The answer string public

Definition at line 1174 of file class.assTextSubset.php.

Referenced by to_xml().

        {
                $join = array();
                foreach ($this->answers as $answer)
                {
                        if (!is_array($join[$answer->getPoints() . ""]))
                        {
                                $join[$answer->getPoints() . ""] = array();
                        }
                        array_push($join[$answer->getPoints() . ""], $answer->getAnswertext());
                }
                return $join;
        }

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assTextSubset::loadFromDb ( question_id  ) 

Loads a assTextSubset object from a database.

Loads a assTextSubset object from a database (experimental)

Parameters:
object $db A pear DB object
integer $question_id A unique key which defines the multiple choice test in the database public

Reimplemented from assQuestion.

Definition at line 581 of file class.assTextSubset.php.

References $data, $query, $result, ilRTE::_replaceMediaObjectImageSrc(), and assQuestion::setEstimatedWorkingTime().

        {
                global $ilDB;

    $query = sprintf("SELECT qpl_questions.*, qpl_question_textsubset.* FROM qpl_questions, qpl_question_textsubset WHERE question_id = %s AND qpl_questions.question_id = qpl_question_textsubset.question_fi",
                        $ilDB->quote($question_id)
                );
                $result = $ilDB->query($query);
                if (strcmp(strtolower(get_class($result)), db_result) == 0)
                {
                        if ($result->numRows() == 1)
                        {
                                $data = $result->fetchRow(DB_FETCHMODE_OBJECT);
                                $this->id = $question_id;
                                $this->title = $data->title;
                                $this->comment = $data->comment;
                                $this->solution_hint = $data->solution_hint;
                                $this->original_id = $data->original_id;
                                $this->obj_id = $data->obj_fi;
                                $this->author = $data->author;
                                $this->owner = $data->owner;
                                $this->points = $data->points;
                                include_once("./Services/RTE/classes/class.ilRTE.php");
                                $this->question = ilRTE::_replaceMediaObjectImageSrc($data->question_text, 1);
                                $this->correctanswers = $data->correctanswers;
                                $this->text_rating = $data->textgap_rating;
                                $this->setEstimatedWorkingTime(substr($data->working_time, 0, 2), substr($data->working_time, 3, 2), substr($data->working_time, 6, 2));
                        }

                        $query = sprintf("SELECT * FROM qpl_answer_textsubset WHERE question_fi = %s ORDER BY aorder ASC",
                                $ilDB->quote($question_id)
                        );
                        $result = $ilDB->query($query);

                        include_once "./assessment/classes/class.assAnswerSimple.php";
                        if (strcmp(strtolower(get_class($result)), db_result) == 0)
                        {
                                while ($data = $result->fetchRow(DB_FETCHMODE_ASSOC))
                                {
                                        array_push($this->answers, new ASS_AnswerSimple($data["answertext"], $data["points"], $data["aorder"]));
                                }
                        }
                }
                parent::loadFromDb($question_id);
        }

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assTextSubset::saveToDb ( original_id = ""  ) 

Saves a assTextSubset object to a database.

Saves a assTextSubset object to a database (experimental)

Parameters:
object $db A pear DB object public

Reimplemented from assQuestion.

Definition at line 456 of file class.assTextSubset.php.

References $key, $query, $result, ilRTE::_cleanupMediaObjectUsage(), ilRTE::_replaceMediaObjectImageSrc(), assQuestion::createPageObject(), getCorrectAnswers(), assQuestion::getEstimatedWorkingTime(), assQuestion::getId(), getMaximumPoints(), getQuestionType(), assQuestion::getTestId(), getTextRating(), assQuestion::insertIntoTest(), and isComplete().

Referenced by fromXML().

        {
                global $ilDB;

                $complete = 0;
                if ($this->isComplete())
                {
                        $complete = 1;
                }
                $estw_time = $this->getEstimatedWorkingTime();
                $estw_time = sprintf("%02d:%02d:%02d", $estw_time['h'], $estw_time['m'], $estw_time['s']);

                if ($original_id)
                {
                        $original_id = $ilDB->quote($original_id);
                }
                else
                {
                        $original_id = "NULL";
                }

                // cleanup RTE images which are not inserted into the question text
                include_once("./Services/RTE/classes/class.ilRTE.php");
                ilRTE::_cleanupMediaObjectUsage($this->question, "qpl:html",
                        $this->getId());

                if ($this->id == -1)
                {
                        // Neuen Datensatz schreiben
                        $now = getdate();
                        $question_type = $this->getQuestionType();
                        $created = sprintf("%04d%02d%02d%02d%02d%02d", $now['year'], $now['mon'], $now['mday'], $now['hours'], $now['minutes'], $now['seconds']);
                        $query = sprintf("INSERT INTO qpl_questions (question_id, question_type_fi, obj_fi, title, comment, author, owner, question_text, points, working_time, complete, created, original_id, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, NULL)",
                                $ilDB->quote($question_type),
                                $ilDB->quote($this->obj_id),
                                $ilDB->quote($this->title),
                                $ilDB->quote($this->comment),
                                $ilDB->quote($this->author),
                                $ilDB->quote($this->owner),
                                $ilDB->quote(ilRTE::_replaceMediaObjectImageSrc($this->question, 0)),
                                $ilDB->quote($this->getMaximumPoints() . ""),
                                $ilDB->quote($estw_time),
                                $ilDB->quote("$complete"),
                                $ilDB->quote($created),
                                $original_id
                        );
                        $result = $ilDB->query($query);
                        
                        if ($result == DB_OK)
                        {
                                $this->id = $ilDB->getLastInsertId();
                                $query = sprintf("INSERT INTO qpl_question_textsubset (question_fi, textgap_rating, correctanswers) VALUES (%s, %s, %s)",
                                        $ilDB->quote($this->id . ""),
                                        $ilDB->quote($this->getTextRating() . ""),
                                        $ilDB->quote($this->getCorrectAnswers() . "")
                                );
                                $ilDB->query($query);

                                // create page object of question
                                $this->createPageObject();

                                // Falls die Frage in einen Test eingefügt werden soll, auch diese Verbindung erstellen
                                if ($this->getTestId() > 0)
                                {
                                $this->insertIntoTest($this->getTestId());
                                }
                        }
                }
                else
                {
                        // Vorhandenen Datensatz aktualisieren
                        $query = sprintf("UPDATE qpl_questions SET obj_fi = %s, title = %s, comment = %s, author = %s, question_text = %s, points = %s, working_time=%s, complete = %s WHERE question_id = %s",
                                $ilDB->quote($this->obj_id. ""),
                                $ilDB->quote($this->title),
                                $ilDB->quote($this->comment),
                                $ilDB->quote($this->author),
                                $ilDB->quote(ilRTE::_replaceMediaObjectImageSrc($this->question, 0)),
                                $ilDB->quote($this->getMaximumPoints() . ""),
                                $ilDB->quote($estw_time),
                                $ilDB->quote("$complete"),
                                $ilDB->quote($this->id)
                        );
                        $result = $ilDB->query($query);
                        $query = sprintf("UPDATE qpl_question_textsubset SET textgap_rating = %s, correctanswers = %s WHERE question_fi = %s",
                                $ilDB->quote($this->getTextRating() . ""),
                                $ilDB->quote($this->getCorrectAnswers() . ""),
                                $ilDB->quote($this->id . "")
                        );
                        $result = $ilDB->query($query);
                }
                if ($result == DB_OK)
                {
                        // Write Ranges to the database
                        
                        // 1. delete old ranges
                        $query = sprintf("DELETE FROM qpl_answer_textsubset WHERE question_fi = %s",
                                $ilDB->quote($this->id)
                        );
                        $result = $ilDB->query($query);

                        // 2. write ranges
                        foreach ($this->answers as $key => $value)
                        {
                                $answer_obj = $this->answers[$key];
                                $query = sprintf("INSERT INTO qpl_answer_textsubset (answer_id, question_fi, answertext, points, aorder) VALUES (NULL, %s, %s, %s, %s)",
                                        $ilDB->quote($this->id),
                                        $ilDB->quote($answer_obj->getAnswertext()),
                                        $ilDB->quote($answer_obj->getPoints() . ""),
                                        $ilDB->quote($answer_obj->getOrder() . "")
                                );
                                $answer_result = $ilDB->query($query);
                        }
                }
                parent::saveToDb($original_id);
        }

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assTextSubset::saveWorkingData ( active_id,
pass = NULL 
)

Saves the learners input of the question to the database.

Saves the learners input of the question to the database

Parameters:
integer $test_id The database id of the test containing this question
Returns:
boolean Indicates the save status (true if saved successful, false otherwise) public
See also:
$ranges

Reimplemented from assQuestion.

Definition at line 1040 of file class.assTextSubset.php.

References $_POST, $key, $query, $result, ilObjAssessmentFolder::_enabledAssessmentLogging(), ilObjAssessmentFolder::_getLogLanguage(), ilObjTest::_getPass(), assQuestion::getId(), and assQuestion::logAction().

        {
                global $ilDB;
                global $ilUser;

                include_once "./assessment/classes/class.ilObjTest.php";
                $actualpass = ilObjTest::_getPass($active_id);
                $entered_values = 0;
                
                $query = sprintf("DELETE FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($actualpass . "")
                );
                $result = $ilDB->query($query);
                foreach ($_POST as $key => $value)
                {
                        if (preg_match("/^TEXTSUBSET_(\d+)/", $key, $matches))
                        {
                                if (strlen($value))
                                {
                                        $query = sprintf("INSERT INTO tst_solutions (solution_id, active_fi, question_fi, value1, value2, pass, TIMESTAMP) VALUES (NULL, %s, %s, %s, NULL, %s, NULL)",
                                                $ilDB->quote($active_id),
                                                $ilDB->quote($this->getId()),
                                                $ilDB->quote(trim($value)),
                                                $ilDB->quote($actualpass . "")
                                        );
                                        $result = $ilDB->query($query);
                                        $entered_values++;
                                }
                        }
                }
                if ($entered_values)
                {
                        include_once ("./classes/class.ilObjAssessmentFolder.php");
                        if (ilObjAssessmentFolder::_enabledAssessmentLogging())
                        {
                                $this->logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
                        }
                }
                else
                {
                        include_once ("./classes/class.ilObjAssessmentFolder.php");
                        if (ilObjAssessmentFolder::_enabledAssessmentLogging())
                        {
                                $this->logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
                        }
                }
    parent::saveWorkingData($active_id, $pass);
                return true;
        }

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assTextSubset::setCorrectAnswers ( a_correct_answers  ) 

Sets the number of correct answers needed to solve the question.

Sets the number of correct answers needed to solve the question

Parameters:
integer $a_correct_anwers The number of correct answers public

Definition at line 1012 of file class.assTextSubset.php.

Referenced by fromXML().

        {
                $this->correctanswers = $a_correct_answers;
        }

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assTextSubset::setQuestion ( question = ""  ) 

Sets the TextSubset question.

Sets the question string of the assTextSubset object

Parameters:
string $question A string containing the TextSubset question public
See also:
$question

Definition at line 637 of file class.assTextSubset.php.

References $question.

Referenced by fromXML().

        {
                $this->question = $question;
        }

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assTextSubset::setTextRating ( a_text_rating  ) 

Sets the rating option for text comparisons.

Sets the rating option for text comparisons

Parameters:
string $a_textgap_rating The rating option for text comparisons
See also:
$textgap_rating Public

Definition at line 941 of file class.assTextSubset.php.

Referenced by fromXML().

        {
                switch ($a_text_rating)
                {
                        case TEXTGAP_RATING_CASEINSENSITIVE:
                        case TEXTGAP_RATING_CASESENSITIVE:
                        case TEXTGAP_RATING_LEVENSHTEIN1:
                        case TEXTGAP_RATING_LEVENSHTEIN2:
                        case TEXTGAP_RATING_LEVENSHTEIN3:
                        case TEXTGAP_RATING_LEVENSHTEIN4:
                        case TEXTGAP_RATING_LEVENSHTEIN5:
                                $this->text_rating = $a_text_rating;
                                break;
                        default:
                                $this->text_rating = TEXTGAP_RATING_CASEINSENSITIVE;
                                break;
                }
        }

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assTextSubset::syncWithOriginal (  ) 

Reimplemented from assQuestion.

Definition at line 1092 of file class.assTextSubset.php.

References $key, $query, $result, assQuestion::getEstimatedWorkingTime(), getMaximumPoints(), and isComplete().

        {
                global $ilDB;
                
                if ($this->original_id)
                {
                        $complete = 0;
                        if ($this->isComplete())
                        {
                                $complete = 1;
                        }
        
                        $estw_time = $this->getEstimatedWorkingTime();
                        $estw_time = sprintf("%02d:%02d:%02d", $estw_time['h'], $estw_time['m'], $estw_time['s']);
        
                        $query = sprintf("UPDATE qpl_questions SET obj_fi = %s, title = %s, comment = %s, author = %s, question_text = %s, points = %s, working_time=%s, complete = %s WHERE question_id = %s",
                                $ilDB->quote($this->obj_id. ""),
                                $ilDB->quote($this->title. ""),
                                $ilDB->quote($this->comment. ""),
                                $ilDB->quote($this->author. ""),
                                $ilDB->quote($this->question. ""),
                                $ilDB->quote($this->getMaximumPoints() . ""),
                                $ilDB->quote($estw_time. ""),
                                $ilDB->quote($complete. ""),
                                $ilDB->quote($this->original_id. "")
                        );
                        $result = $ilDB->query($query);
                        $query = sprintf("UPDATE qpl_question_textsubset SET textgap_rating = %s, correctanswers = %s WHERE question_fi = %s",
                                $ilDB->quote($this->getTextRating() . ""),
                                $ilDB->quote($this->getCorrectAnswers() . ""),
                                $ilDB->quote($this->original_id . "")
                        );
                        $result = $ilDB->query($query);

                        if ($result == DB_OK)
                        {
                                // Write Ranges to the database
                                
                                // 1. delete old ranges
                                $query = sprintf("DELETE FROM qpl_answer_textsubset WHERE question_fi = %s",
                                        $ilDB->quote($this->original_id)
                                );
                                $result = $ilDB->query($query);
        
                                // 2. write ranges
                                foreach ($this->answers as $key => $value)
                                {
                                        $answer_obj = $this->answers[$key];
                                        $query = sprintf("INSERT INTO qpl_answer_textsubset (answer_id, question_fi, answertext, points, aorder) VALUES (NULL, %s, %s, %s, %s)",
                                                $ilDB->quote($this->original_id. ""),
                                                $ilDB->quote($answer_obj->getAnswertext(). ""),
                                                $ilDB->quote($answer_obj->getPoints() . ""),
                                                $ilDB->quote($answer_obj->getOrder() . "")
                                        );
                                        $answer_result = $ilDB->query($query);
                                }
                        }
                        parent::syncWithOriginal();
                }
        }

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assTextSubset::to_xml ( a_include_header = true,
a_include_binary = true,
a_shuffle = false,
test_output = false,
force_image_references = 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

Returns:
string The QTI xml representation of the question public

Definition at line 278 of file class.assTextSubset.php.

References $counter, assQuestion::$points, $pos, assQuestion::addQTIMaterial(), assQuestion::getAuthor(), assQuestion::getComment(), getCorrectAnswers(), assQuestion::getEstimatedWorkingTime(), getMaxTextboxWidth(), assQuestion::getPoints(), getQuestion(), assQuestion::getSuggestedSolution(), getTextRating(), assQuestion::getTitle(), and joinAnswers().

        {
                include_once("./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->getId(),
                        "title" => $this->getTitle()
                );
                $a_xml_writer->xmlStartTag("item", $attrs);
                // add question description
                $a_xml_writer->xmlElement("qticomment", NULL, $this->getComment());
                // add estimated working time
                $workingtime = $this->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, $this->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, TEXTSUBSET_QUESTION_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->getAuthor());
                $a_xml_writer->xmlEndTag("qtimetadatafield");
                $a_xml_writer->xmlStartTag("qtimetadatafield");
                $a_xml_writer->xmlElement("fieldlabel", NULL, "textrating");
                $a_xml_writer->xmlElement("fieldentry", NULL, $this->getTextRating());
                $a_xml_writer->xmlEndTag("qtimetadatafield");
                $a_xml_writer->xmlStartTag("qtimetadatafield");
                $a_xml_writer->xmlElement("fieldlabel", NULL, "correctanswers");
                $a_xml_writer->xmlElement("fieldentry", NULL, $this->getCorrectAnswers());
                $a_xml_writer->xmlEndTag("qtimetadatafield");
                $a_xml_writer->xmlStartTag("qtimetadatafield");
                $a_xml_writer->xmlElement("fieldlabel", NULL, "points");
                $a_xml_writer->xmlElement("fieldentry", NULL, $this->getPoints());
                $a_xml_writer->xmlEndTag("qtimetadatafield");
                $a_xml_writer->xmlEndTag("qtimetadata");
                $a_xml_writer->xmlEndTag("itemmetadata");

                // PART I: qti presentation
                $attrs = array(
                        "label" => $this->getTitle()
                );
                $a_xml_writer->xmlStartTag("presentation", $attrs);
                // add flow to presentation
                $a_xml_writer->xmlStartTag("flow");
                // add material with question text to presentation
                $this->addQTIMaterial($a_xml_writer, $this->getQuestion());
                // add answers to presentation
                for ($counter = 1; $counter <= $this->getCorrectAnswers(); $counter++)
                {
                        $attrs = array(
                                "ident" => "TEXTSUBSET_" . sprintf("%02d", $counter),
                                "rcardinality" => "Single"
                        );
                        $a_xml_writer->xmlStartTag("response_str", $attrs);
                        $solution = $this->getSuggestedSolution(0);
                        if (count($solution))
                        {
                                if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
                                {
                                        $a_xml_writer->xmlStartTag("material");
                                        $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
                                        if (strcmp($matches[1], "") != 0)
                                        {
                                                $intlink = $solution["internal_link"];
                                        }
                                        $attrs = array(
                                                "label" => "suggested_solution"
                                        );
                                        $a_xml_writer->xmlElement("mattext", $attrs, $intlink);
                                        $a_xml_writer->xmlEndTag("material");
                                }
                        }
                        // shuffle output
                        $attrs = array(
                                "fibtype" => "String",
                                "columns" => $this->getMaxTextboxWidth()
                        );
                        $a_xml_writer->xmlStartTag("render_fib", $attrs);
                        $a_xml_writer->xmlEndTag("render_fib");
                        $a_xml_writer->xmlEndTag("response_str");
                }
                
                $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");
                $attribs = array(
                        "varname" => "matches",
                        "defaultval" => "0"
                );
                $a_xml_writer->xmlElement("decvar", $attribs, NULL);
                $a_xml_writer->xmlEndTag("outcomes");
                // add response conditions
                for ($counter = 1; $counter <= $this->getCorrectAnswers(); $counter++)
                {
                        $scoregroups =& $this->joinAnswers();
                        foreach ($scoregroups as $points => $scoreanswers)
                        {
                                $attrs = array(
                                        "continue" => "Yes"
                                );
                                $a_xml_writer->xmlStartTag("respcondition", $attrs);
                                // qti conditionvar
                                $a_xml_writer->xmlStartTag("conditionvar");
                                $attrs = array(
                                        "respident" => "TEXTSUBSET_" . sprintf("%02d", $counter)
                                );
                                $a_xml_writer->xmlElement("varsubset", $attrs, join(",", $scoreanswers));
                                $a_xml_writer->xmlEndTag("conditionvar");
                                // qti setvar
                                $attrs = array(
                                        "varname" => "matches",
                                        "action" => "Add"
                                );
                                $a_xml_writer->xmlElement("setvar", $attrs, $points);
                                // qti displayfeedback
                                $attrs = array(
                                        "feedbacktype" => "Response",
                                        "linkrefid" => "Matches_" . sprintf("%02d", $counter)
                                );
                                $a_xml_writer->xmlElement("displayfeedback", $attrs);
                                $a_xml_writer->xmlEndTag("respcondition");
                        }
                }
                $a_xml_writer->xmlEndTag("resprocessing");

                // PART III: qti itemfeedback
                for ($counter = 1; $counter <= $this->getCorrectAnswers(); $counter++)
                {
                        $attrs = array(
                                "ident" => "Matches_" . sprintf("%02d", $counter),
                                "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");
                        $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;
        }

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Field Documentation

assTextSubset::$answers

Definition at line 56 of file class.assTextSubset.php.

Referenced by isAnswerCorrect().

assTextSubset::$correctanswers

Definition at line 65 of file class.assTextSubset.php.

assTextSubset::$question

Definition at line 47 of file class.assTextSubset.php.

Referenced by assTextSubset(), and setQuestion().

assTextSubset::$text_rating

Definition at line 74 of file class.assTextSubset.php.


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