SurveyMultipleChoiceQuestion Class Reference

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V. More...

Inheritance diagram for SurveyMultipleChoiceQuestion:

Collaboration diagram for SurveyMultipleChoiceQuestion:

Public Member Functions
	__construct (string $title="", string $description="", string $author="", string $questiontext="", int $owner=-1, int $orientation=0)
	getQuestionDataArray (int $id)
	Returns the question data. More...
	loadFromDb (int $question_id)
	load question data into object note: this base implementation only loads the material data More...
	isComplete ()
	saveToDb (int $original_id=0)
	Saves a SurveyQuestion object to a database. More...
	saveCategoriesToDb ()
	toXML (bool $a_include_header=true, bool $obligatory_state=false)
	insertXML (ilXmlWriter $a_xml_writer, bool $a_include_header=true)
	Adds the question XML to a given XMLWriter object. More...
	getQuestionType ()
	getAdditionalTableName ()
	getWorkingDataFromUserInput (array $post_data)
	Creates the user data of the svy_answer table from the POST data. More...
	checkUserInput (array $post_data, int $survey_id)
	saveUserInput (array $post_data, int $active_id, bool $a_return=false)
	importAdditionalMetadata (array $a_meta)
	Import additional meta data from the question import file. More...
	importResponses (array $a_data)
	Import response data from the question import file. More...
	usableForPrecondition ()
	Returns if the question is usable for preconditions. More...
	getAvailableRelations ()
	Returns the available relations for the question. More...
	getPreconditionOptions ()
	Returns the options for preconditions. More...
	getPreconditionSelectValue (string $default, string $title, string $variable)
	Creates a form property for the precondition value. More...
	getPreconditionValueOutput (string $value)
	Returns the output for a precondition value. More...
	getCategories ()
Public Member Functions inherited from SurveyQuestion
	__construct (string $title="", string $description="", string $author="", string $questiontext="", int $owner=-1)
	setComplete (bool $a_complete)
	isComplete ()
	questionTitleExists (string $title, int $questionpool_object=0)
	setTitle (string $title="")
	setObligatory (bool $obligatory=true)
	setOrientation (int $orientation=0)
	setId (int $id=-1)
	setSurveyId (int $id=-1)
	setDescription (string $description="")
	addMaterials (string $materials_file, string $materials_name="")
	setMaterialsfile (string $materials_filename, string $materials_tempfilename="", string $materials_name="")
	Uploads and adds a material. More...
	deleteMaterial (string $materials_name="")
	flushMaterials ()
	Deletes all materials uris. More...
	setAuthor (string $author="")
	setQuestiontext (string $questiontext="")
	setOwner (int $owner=0)
	getTitle ()
	getLabel ()
	getId ()
	getObligatory ()
	getSurveyId ()
	getOrientation ()
	getDescription ()
	getAuthor ()
	getOwner ()
	getQuestiontext ()
	getObjId ()
	Get the reference(?) id of the container object. More...
	setObjId (int $obj_id=0)
	Set the reference(?) id of the container object. More...
	duplicate (bool $for_survey=true, string $title="", string $author="", int $owner=0, int $a_survey_id=0)
	copyObject (int $target_questionpool, string $title="")
	copyXHTMLMediaObjectsOfQuestion (int $a_q_id)
	Copy media object usages from other question. More...
	loadFromDb (int $question_id)
	load question data into object note: this base implementation only loads the material data More...
	saveCompletionStatus (int $original_id=0)
	Saves the complete flag to the database. More...
	saveToDb (int $original_id=0)
	Saves a SurveyQuestion object to a database. More...
	saveMaterial ()
	createNewQuestion ()
	Creates a new question with a 0 timestamp when a new question is created This assures that an ID is given to the question if a file upload or something else occurs. More...
	getImagePath ()
	Returns the image path for web accessible images of a question. More...
	getMaterialsPath ()
	Returns the materials path for web accessible materials of a question. More...
	getImagePathWeb ()
	Returns the web image path for web accessible images of a question. More...
	getMaterialsPathWeb ()
	Returns the web image path for web accessable images of a question. More...
	saveCategoryToDb (string $categorytext, int $neutral=0)
	Saves a category to the database. More...
	deleteAdditionalTableData (int $question_id)
	Deletes datasets from the additional question table in the database. More...
	delete (int $question_id)
	Deletes a question and all materials from the database. More...
	syncWithOriginal ()
	getPhrase (int $phrase_id)
	Returns a phrase title for phrase id. More...
	phraseExists (string $title)
	Returns true if the phrase title already exists for the current user(!) More...
	deleteMaterials (array $a_array)
	duplicateMaterials (int $question_id)
	Duplicates the materials of a question. More...
	addMaterial (ilSurveyMaterial $obj_material)
	getQuestionTypeID ()
	getQuestionType ()
	isHTML (string $a_text)
	QTIMaterialToString (ilQTIMaterial $a_material)
	Reads an QTI material tag an creates a text string. More...
	addMaterialTag (ilXmlWriter $a_xml_writer, string $a_material, bool $close_material_tag=true, bool $add_mobs=true, ?array $a_attrs=null)
	Creates an XML material tag from a plain text or xhtml text. More...
	prepareTextareaOutput (string $txt_output, bool $prepare_for_latex_output=false)
	Prepares string for a text area output in surveys. More...
	getQuestionDataArray (int $id)
	Returns the question data. More...
	getWorkingDataFromUserInput (array $post_data)
	Creates the user data of the svy_answer table from the POST data. More...
	importAdditionalMetadata (array $a_meta)
	Import additional meta data from the question import file. More...
	importResponses (array $a_data)
	Import response data from the question import file. More...
	importAdjectives (array $a_data)
	Import bipolar adjectives from the question import file. More...
	importMatrix (array $a_data)
	Import matrix rows from the question import file. More...
	usableForPrecondition ()
	Returns if the question is usable for preconditions. More...
	getAvailableRelations ()
	Returns the available relations for the question. More...
	getPreconditionOptions ()
	Returns the options for preconditions. More...
	getPreconditionValueOutput (string $value)
	Returns the output for a precondition value. More...
	getPreconditionSelectValue (string $default, string $title, string $variable)
	Creates a form property for the precondition value. More...
	setOriginalId (?int $original_id)
	getOriginalId ()
	getMaterial ()
	setSubtype (int $a_subtype)
	getSubtype ()
	__get (string $value)
	__set (string $key, string $value)
	getCopyIds (bool $a_group_by_survey=false)
	hasCopies ()
	stripSlashesAddSpaceFallback (string $a_str)
	Strip slashes with add space fallback, see https://mantis.ilias.de/view.php?id=19727 and https://mantis.ilias.de/view.php?id=24200. More...

Static Public Member Functions
static	getMaxSumScore (int $survey_id)
	Get max sum score for specific survey (and this question type) More...
Static Public Member Functions inherited from SurveyQuestion
static	_isComplete (int $question_id)
	Checks whether the question is complete or not. More...
static	_getQuestionType (int $question_id)
	Returns the question type of a question with a given id. More...
static	_getTitle (int $question_id)
	Returns the question title of a question with a given id. More...
static	_getOriginalId (int $question_id, bool $a_return_question_id_if_no_original=true)
	Returns the original id of a question. More...
static	_questionExists (int $question_id)
static	_resolveInternalLink (string $internal_link)
static	_resolveIntLinks (int $question_id)
static	_getInternalLinkHref (string $target="", int $a_parent_ref_id=null)
static	_isWriteable (int $question_id, int $user_id)
	is question writeable by a certain user More...
static	_includeClass (string $question_type, int $gui=0)
	Include the php class file for a given question type. More...
static	_getQuestionTypeName (string $type_tag)
	Return the translation for a given question type. More...
static	_instanciateQuestion (int $question_id)
	Get question object. More...
static	_instanciateQuestionGUI (int $question_id)
	Get question gui object. More...
static	_instanciateQuestionEvaluation (int $question_id, array $a_finished_ids=null)
static	_changeOriginalId (int $a_question_id, int $a_original_id, int $a_object_id)
	Change original id of existing question in db. More...
static	_lookupSurveyObjId (int $a_question_id)
static	lookupObjFi (int $a_qid)
static	getMaxSumScore (int $survey_id)
	Get max sum score for specific survey (and this question type) More...

Data Fields
SurveyCategories	$categories
Data Fields inherited from SurveyQuestion
int	$id
string	$title
string	$description
int	$owner
string	$author
array	$materials
int	$survey_id
int	$obj_id
string	$questiontext
bool	$obligatory
ilLanguage	$lng
int	$orientation
array	$material
bool	$complete

Additional Inherited Members
Protected Attributes inherited from SurveyQuestion
int	$original_id
ILIAS SurveyQuestionPool Editing EditSessionRepository	$edit_manager
ilObjUser	$user
ilDBInterface	$db
array	$cumulated
ilLogger	$log
ILIAS SurveyQuestionPool Export ImportSessionRepository	$import_manager

Detailed Description

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V.

ILIAS is licensed with the GPL-3.0, see https://www.gnu.org/licenses/gpl-3.0.en.html You should have received a copy of said license along with the source code, too.

If this is not the case or you just want to try ILIAS, you'll find us at: https://www.ilias.de https://github.com/ILIAS-eLearning MultipleChoice survey question The SurveyMultipleChoiceQuestion class defines and encapsulates basic methods and attributes for multiple choice survey question types.

Author

Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m

Definition at line 25 of file class.SurveyMultipleChoiceQuestion.php.

Constructor & Destructor Documentation

__construct()

SurveyMultipleChoiceQuestion::__construct	(	string	$title = "",
		string	$description = "",
		string	$author = "",
		string	$questiontext = "",
		int	$owner = -1,
		int	$orientation = 0
	)

Definition at line 29 of file class.SurveyMultipleChoiceQuestion.php.

      {
        global $DIC;
 
        $this->db = $DIC->database();
        $this->lng = $DIC->language();
        parent::__construct($title, $description, $author, $questiontext, $owner);
 
        $this->orientation = $orientation;
        $this->categories = new SurveyCategories();
    }

References SurveyQuestion\$author, SurveyQuestion\$description, $DIC, SurveyQuestion\$orientation, SurveyQuestion\$owner, SurveyQuestion\$questiontext, SurveyQuestion\$title, ILIAS\GlobalScreen\Provider\__construct(), and ILIAS\Repository\lng().

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Member Function Documentation

checkUserInput()

SurveyMultipleChoiceQuestion::checkUserInput	(	array	$post_data,
		int	$survey_id
	)

Returns

string Empty string if the input is ok, an error message otherwise

Definition at line 314 of file class.SurveyMultipleChoiceQuestion.php.

     : string {
        $entered_value = (array) ($post_data[$this->getId() . "_value"] ?? []);
        if (!$this->getObligatory() && (count($entered_value) === 0)) {
            return "";
        }
 
        if ($this->use_min_answers && $this->nr_min_answers > 0 && $this->nr_max_answers > 0 && $this->nr_min_answers == $this->nr_max_answers && count($entered_value) !== (int) $this->nr_max_answers) {
            return sprintf($this->lng->txt("err_no_exact_answers"), $this->nr_min_answers);
        }
        if ($this->use_min_answers && $this->nr_min_answers > 0 && count($entered_value) < $this->nr_min_answers) {
            return sprintf($this->lng->txt("err_no_min_answers"), $this->nr_min_answers);
        }
        if ($this->use_min_answers && $this->nr_max_answers > 0 && count($entered_value) > $this->nr_max_answers) {
            return sprintf($this->lng->txt("err_no_max_answers"), $this->nr_max_answers);
        }
        if (count($entered_value) == 0) {
            return $this->lng->txt("question_mr_not_checked");
        }
        for ($i = 0; $i < $this->categories->getCategoryCount(); $i++) {
            $cat = $this->categories->getCategory($i);
            if ($cat->other) {
                if (in_array($i, $entered_value)) {
                    if (array_key_exists($this->getId() . "_" . $i . "_other", $post_data) && !strlen($post_data[$this->getId() . "_" . $i . "_other"])) {
                        return $this->lng->txt("question_mr_no_other_answer");
                    }
                } elseif (strlen($post_data[$this->getId() . "_" . $i . "_other"] ?? "")) {
                    return $this->lng->txt("question_mr_no_other_answer_checked");
                }
            }
        }
        return "";
    }

getAdditionalTableName()

SurveyMultipleChoiceQuestion::getAdditionalTableName

(

)

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

                                            : string
    {
        return "svy_qst_mc";
    }

Referenced by getQuestionDataArray(), loadFromDb(), and saveToDb().

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getAvailableRelations()

SurveyMultipleChoiceQuestion::getAvailableRelations

(

)

Returns the available relations for the question.

Reimplemented from SurveyQuestion.

Definition at line 431 of file class.SurveyMultipleChoiceQuestion.php.

                                           : array
    {
        return array("=", "<>");
    }

getCategories()

SurveyMultipleChoiceQuestion::getCategories

(

)

Definition at line 470 of file class.SurveyMultipleChoiceQuestion.php.

                                   : SurveyCategories
    {
        return $this->categories;
    }

getMaxSumScore()

static SurveyMultipleChoiceQuestion::getMaxSumScore ( int  $survey_id )

static

Get max sum score for specific survey (and this question type)

Reimplemented from SurveyQuestion.

Definition at line 475 of file class.SurveyMultipleChoiceQuestion.php.

                                                         : int
    {
        global $DIC;
 
        // we need sum of scale values of multiple choice questions (type 1)
        $db = $DIC->database();
        $set = $db->queryF(
            "SELECT SUM(scale) sum_sum_score FROM svy_svy_qst sq " .
            "JOIN svy_question q ON (sq.question_fi = q.question_id) " .
            "JOIN svy_variable v ON (v.question_fi = q.question_id) " .
            "WHERE sq.survey_fi  = %s AND q.questiontype_fi = %s ",
            ["integer", "integer"],
            [$survey_id, 1]
        );
        $rec = $db->fetchAssoc($set);
        return (int) $rec["sum_sum_score"];
    }

References $DIC.

getPreconditionOptions()

SurveyMultipleChoiceQuestion::getPreconditionOptions

(

)

Returns the options for preconditions.

Reimplemented from SurveyQuestion.

Definition at line 436 of file class.SurveyMultipleChoiceQuestion.php.

                                            : array
    {
        $options = array();
        for ($i = 0; $i < $this->categories->getCategoryCount(); $i++) {
            $category = $this->categories->getCategory($i);
            $options[$category->scale - 1] = $category->scale . " - " . $category->title;
        }
        return $options;
    }

References $i.

getPreconditionSelectValue()

SurveyMultipleChoiceQuestion::getPreconditionSelectValue	(	string	$default,
		string	$title,
		string	$variable
	)

Creates a form property for the precondition value.

Reimplemented from SurveyQuestion.

Definition at line 446 of file class.SurveyMultipleChoiceQuestion.php.

     : ?ilFormPropertyGUI {
        $step3 = new ilSelectInputGUI($title, $variable);
        $options = $this->getPreconditionOptions();
        $step3->setOptions($options);
        $step3->setValue($default);
        return $step3;
    }

getPreconditionValueOutput()

SurveyMultipleChoiceQuestion::getPreconditionValueOutput

(

string

$value

)

Returns the output for a precondition value.

Parameters

string

$value

The precondition value

Returns

string The output of the precondition value

Reimplemented from SurveyQuestion.

Definition at line 458 of file class.SurveyMultipleChoiceQuestion.php.

     : string {
        // #18136
        $category = $this->categories->getCategoryForScale((int) $value + 1);
 
        // #17895 - see getPreconditionOptions()
        return $category->scale .
            " - " .
            ((strlen($category->title)) ? $category->title : $this->lng->txt('other_answer'));
    }

getQuestionDataArray()

SurveyMultipleChoiceQuestion::getQuestionDataArray

(

int

$id

)

Returns the question data.

Reimplemented from SurveyQuestion.

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

                                                 : array
    {
        $ilDB = $this->db;
 
        $result = $ilDB->queryF(
            "SELECT svy_question.*, " . $this->getAdditionalTableName() . ".* FROM svy_question, " . $this->getAdditionalTableName() . " WHERE svy_question.question_id = %s AND svy_question.question_id = " . $this->getAdditionalTableName() . ".question_fi",
            array('integer'),
            array($id)
        );
        if ($result->numRows() === 1) {
            return $ilDB->fetchAssoc($result);
        }
 
        return array();
    }

References SurveyQuestion\$db, SurveyQuestion\$id, $ilDB, and getAdditionalTableName().

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getQuestionType()

SurveyMultipleChoiceQuestion::getQuestionType

(

)

Reimplemented from SurveyQuestion.

Definition at line 273 of file class.SurveyMultipleChoiceQuestion.php.

                                     : string
    {
        return "SurveyMultipleChoiceQuestion";
    }

getWorkingDataFromUserInput()

SurveyMultipleChoiceQuestion::getWorkingDataFromUserInput

(

array

$post_data

)

Creates the user data of the svy_answer table from the POST data.

Returns

array User data according to the svy_answer table

Reimplemented from SurveyQuestion.

Definition at line 283 of file class.SurveyMultipleChoiceQuestion.php.

                                                                 : array
    {
        $entered_value = $post_data[$this->getId() . "_value"] ?? "";
        $data = array();
        if (is_array($entered_value)) {
            foreach ($entered_value as $idx => $value) {
                $data[] = array("value" => $value,
                                "textanswer" => $post_data[$this->getId() . '_' . $value . '_other'] ?? ""
                );
            }
        }
        for ($i = 0; $i < $this->categories->getCategoryCount(); $i++) {
            $cat = $this->categories->getCategory($i);
            if ($cat->other) {
                // #18212
                if (!is_array($entered_value) || !in_array($i, $entered_value)) {
                    if (strlen($post_data[$this->getId() . "_" . $i . "_other"])) {
                        $data[] = array("value" => $i,
                                        "textanswer" => $post_data[$this->getId() . '_' . $i . '_other'] ?? "",
                                        "uncheck" => true
                        );
                    }
                }
            }
        }
        return $data;
    }

References $data, $i, and ILIAS\Survey\Mode\getId().

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importAdditionalMetadata()

SurveyMultipleChoiceQuestion::importAdditionalMetadata

(

array

$a_meta

)

Import additional meta data from the question import file.

Usually the meta data section is used to store question elements which are not part of the standard XML schema.

Reimplemented from SurveyQuestion.

Definition at line 389 of file class.SurveyMultipleChoiceQuestion.php.

                                                           : void
    {
        foreach ($a_meta as $key => $value) {
            switch ($value["label"]) {
                case "orientation":
                    $this->setOrientation($value["entry"]);
                    break;
                case "use_min_answers":
                    $this->use_min_answers = $value["entry"];
                    break;
                case "nr_min_answers":
                    $this->nr_min_answers = $value["entry"];
                    break;
                case "nr_max_answers":
                    $this->nr_max_answers = $value["entry"];
                    break;
            }
        }
    }

References ILIAS\LTI\ToolProvider\$key.

importResponses()

SurveyMultipleChoiceQuestion::importResponses

(

array

$a_data

)

Import response data from the question import file.

Reimplemented from SurveyQuestion.

Definition at line 409 of file class.SurveyMultipleChoiceQuestion.php.

                                                  : void
    {
        foreach ($a_data as $id => $data) {
            $categorytext = "";
            foreach ($data["material"] as $material) {
                $categorytext .= $material["text"];
            }
            $this->categories->addCategory(
                $categorytext,
                strlen($data['other']) ? $data['other'] : 0,
                strlen($data['neutral']) ? $data['neutral'] : 0,
                strlen($data['label']) ? $data['label'] : null,
                strlen($data['scale']) ? $data['scale'] : null
            );
        }
    }

References $data, and $id.

insertXML()

SurveyMultipleChoiceQuestion::insertXML	(	ilXmlWriter	$a_xml_writer,
		bool	$a_include_header = true
	)

Adds the question XML to a given XMLWriter object.

Definition at line 186 of file class.SurveyMultipleChoiceQuestion.php.

     : void {
        $attrs = array(
            "id" => $this->getId(),
            "title" => $this->getTitle(),
            "type" => $this->getQuestionType(),
            "obligatory" => $this->getObligatory()
        );
        $a_xml_writer->xmlStartTag("question", $attrs);
 
        $a_xml_writer->xmlElement("description", null, $this->getDescription());
        $a_xml_writer->xmlElement("author", null, $this->getAuthor());
        if (strlen($this->label)) {
            $attrs = array(
                "label" => $this->label,
            );
        } else {
            $attrs = array();
        }
        $a_xml_writer->xmlStartTag("questiontext", $attrs);
        $this->addMaterialTag($a_xml_writer, $this->getQuestiontext());
        $a_xml_writer->xmlEndTag("questiontext");
 
        $a_xml_writer->xmlStartTag("responses");
 
        for ($i = 0; $i < $this->categories->getCategoryCount(); $i++) {
            $attrs = array(
                "id" => $i
            );
            if (strlen($this->categories->getCategory($i)->other)) {
                $attrs['other'] = $this->categories->getCategory($i)->other;
            }
            if (strlen($this->categories->getCategory($i)->neutral)) {
                $attrs['neutral'] = $this->categories->getCategory($i)->neutral;
            }
            if (strlen($this->categories->getCategory($i)->label)) {
                $attrs['label'] = $this->categories->getCategory($i)->label;
            }
            if (strlen($this->categories->getCategory($i)->scale)) {
                $attrs['scale'] = $this->categories->getCategory($i)->scale;
            }
            $a_xml_writer->xmlStartTag("response_multiple", $attrs);
            $this->addMaterialTag($a_xml_writer, $this->categories->getCategory($i)->title);
            $a_xml_writer->xmlEndTag("response_multiple");
        }
 
        $a_xml_writer->xmlEndTag("responses");
 
        if (count($this->material)) {
            if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $this->material["internal_link"], $matches)) {
                $attrs = array(
                    "label" => $this->material["title"]
                );
                $a_xml_writer->xmlStartTag("material", $attrs);
                $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
                if (strcmp($matches[1], "") !== 0) {
                    $intlink = $this->material["internal_link"];
                }
                $a_xml_writer->xmlElement("mattext", null, $intlink);
                $a_xml_writer->xmlEndTag("material");
            }
        }
 
        $a_xml_writer->xmlStartTag("metadata");
        $a_xml_writer->xmlStartTag("metadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "orientation");
        $a_xml_writer->xmlElement("fieldentry", null, $this->getOrientation());
        $a_xml_writer->xmlEndTag("metadatafield");
        $a_xml_writer->xmlStartTag("metadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "use_min_answers");
        $a_xml_writer->xmlElement("fieldentry", null, $this->use_min_answers);
        $a_xml_writer->xmlEndTag("metadatafield");
        $a_xml_writer->xmlStartTag("metadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "nr_min_answers");
        $a_xml_writer->xmlElement("fieldentry", null, $this->nr_min_answers);
        $a_xml_writer->xmlEndTag("metadatafield");
        $a_xml_writer->xmlStartTag("metadatafield");
        $a_xml_writer->xmlElement("fieldlabel", null, "nr_max_answers");
        $a_xml_writer->xmlElement("fieldentry", null, $this->nr_max_answers);
        $a_xml_writer->xmlEndTag("metadatafield");
        $a_xml_writer->xmlEndTag("metadata");
 
        $a_xml_writer->xmlEndTag("question");
    }

isComplete()

SurveyMultipleChoiceQuestion::isComplete

(

)

Reimplemented from SurveyQuestion.

Definition at line 105 of file class.SurveyMultipleChoiceQuestion.php.

                                : bool
    {
        return (
            $this->getTitle() !== '' &&
            $this->getAuthor() !== '' &&
            $this->getQuestiontext() !== '' &&
            $this->categories->getCategoryCount()
        );
    }

References SurveyQuestion\getAuthor(), SurveyQuestion\getQuestiontext(), and SurveyQuestion\getTitle().

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loadFromDb()

SurveyMultipleChoiceQuestion::loadFromDb

(

int

$question_id

)

load question data into object note: this base implementation only loads the material data

Reimplemented from SurveyQuestion.

Definition at line 63 of file class.SurveyMultipleChoiceQuestion.php.

                                                : void
    {
        $ilDB = $this->db;
 
        $result = $ilDB->queryF(
            "SELECT svy_question.*, " . $this->getAdditionalTableName() . ".* FROM svy_question LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = svy_question.question_id WHERE svy_question.question_id = %s",
            array('integer'),
            array($question_id)
        );
        if ($result->numRows() === 1) {
            $data = $ilDB->fetchAssoc($result);
            $this->setId($data["question_id"]);
            $this->setTitle((string) $data["title"]);
            $this->label = (string) $data['label'];
            $this->setDescription((string) $data["description"]);
            $this->setObjId((int) $data["obj_fi"]);
            $this->setAuthor((string) $data["author"]);
            $this->setOwner((int) $data["owner_fi"]);
            $this->setQuestiontext(ilRTE::_replaceMediaObjectImageSrc((string) $data["questiontext"], 1));
            $this->setObligatory((bool) $data["obligatory"]);
            $this->setComplete((bool) $data["complete"]);
            $this->setOriginalId((int) $data["original_id"]);
            $this->setOrientation((int) $data["orientation"]);
            $this->use_min_answers = (bool) $data['use_min_answers'];
            $this->nr_min_answers = (string) $data['nr_min_answers'];
            $this->nr_max_answers = (string) $data['nr_max_answers'];
 
            $this->categories->flushCategories();
            $result = $ilDB->queryF(
                "SELECT svy_variable.*, svy_category.title, svy_category.neutral FROM svy_variable, svy_category WHERE svy_variable.question_fi = %s AND svy_variable.category_fi = svy_category.category_id ORDER BY sequence ASC",
                array('integer'),
                array($question_id)
            );
            if ($result->numRows() > 0) {
                while ($data = $ilDB->fetchAssoc($result)) {
                    $this->categories->addCategory((string) $data["title"], (int) $data["other"], (int) $data["neutral"], null, ($data['scale']) ?: ($data['sequence'] + 1));
                }
            }
        }
        parent::loadFromDb($question_id);
    }

References $data, SurveyQuestion\$db, $ilDB, ilRTE\_replaceMediaObjectImageSrc(), getAdditionalTableName(), ILIAS\Repository\int(), SurveyQuestion\setAuthor(), SurveyQuestion\setComplete(), SurveyQuestion\setDescription(), SurveyQuestion\setId(), SurveyQuestion\setObjId(), SurveyQuestion\setObligatory(), SurveyQuestion\setOrientation(), SurveyQuestion\setOriginalId(), SurveyQuestion\setOwner(), SurveyQuestion\setQuestiontext(), and SurveyQuestion\setTitle().

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saveCategoriesToDb()

SurveyMultipleChoiceQuestion::saveCategoriesToDb

(

)

Definition at line 145 of file class.SurveyMultipleChoiceQuestion.php.

                                        : void
    {
        $ilDB = $this->db;
 
        $affectedRows = $ilDB->manipulateF(
            "DELETE FROM svy_variable WHERE question_fi = %s",
            array('integer'),
            array($this->getId())
        );
 
        for ($i = 0; $i < $this->categories->getCategoryCount(); $i++) {
            $cat = $this->categories->getCategory($i);
            $category_id = $this->saveCategoryToDb($cat->title, $cat->neutral);
            $next_id = $ilDB->nextId('svy_variable');
            $affectedRows = $ilDB->manipulateF(
                "INSERT INTO svy_variable (variable_id, category_fi, question_fi, value1, other, sequence, scale, tstamp) VALUES (%s, %s, %s, %s, %s, %s, %s, %s)",
                array('integer','integer','integer','float','integer','integer', 'integer','integer'),
                array($next_id, $category_id, $this->getId(), ($i + 1), $cat->other, $i, ($cat->scale > 0) ? $cat->scale : null, time())
            );
        }
        $this->saveCompletionStatus();
    }

References SurveyQuestion\$db, $i, $ilDB, SurveyQuestion\getId(), SurveyQuestion\saveCategoryToDb(), and SurveyQuestion\saveCompletionStatus().

Referenced by saveToDb().

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saveToDb()

SurveyMultipleChoiceQuestion::saveToDb

(

int

$original_id = 0

)

Saves a SurveyQuestion object to a database.

Reimplemented from SurveyQuestion.

Definition at line 115 of file class.SurveyMultipleChoiceQuestion.php.

                                                  : int
    {
        $ilDB = $this->db;
 
        $affectedRows = parent::saveToDb($original_id);
        if ($affectedRows === 1) {
            $ilDB->manipulateF(
                "DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
                array('integer'),
                array($this->getId())
            );
            $ilDB->manipulateF(
                "INSERT INTO " . $this->getAdditionalTableName() . " (question_fi, orientation, use_min_answers, nr_min_answers, nr_max_answers) VALUES (%s, %s, %s, %s, %s)",
                array('integer', 'text', 'integer', 'integer', 'integer'),
                array(
                    $this->getId(),
                    $this->getOrientation(),
                    ($this->use_min_answers) ? 1 : 0,
                    ($this->nr_min_answers > 0) ? $this->nr_min_answers : null,
                    ($this->nr_max_answers > 0) ? $this->nr_max_answers : null
                )
            );
 
            // saving material uris in the database
            $this->saveMaterial();
            $this->saveCategoriesToDb();
        }
        return $affectedRows;
    }

References SurveyQuestion\$db, $ilDB, SurveyQuestion\$original_id, getAdditionalTableName(), SurveyQuestion\getId(), SurveyQuestion\getOrientation(), saveCategoriesToDb(), and SurveyQuestion\saveMaterial().

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saveUserInput()

SurveyMultipleChoiceQuestion::saveUserInput	(	array	$post_data,
		int	$active_id,
		bool	$a_return = false
	)

Definition at line 350 of file class.SurveyMultipleChoiceQuestion.php.

     : ?array {
        $ilDB = $this->db;
 
        if ($a_return) {
            $return_data = array();
        }
        if (is_array($post_data[$this->getId() . "_value"] ?? null)) {
            foreach ($post_data[$this->getId() . "_value"] as $entered_value) {
                if (strlen($entered_value) > 0) {
                    if (!$a_return) {
                        $next_id = $ilDB->nextId('svy_answer');
 
                        #20216
                        $fields = array();
                        $fields['answer_id'] = array("integer", $next_id);
                        $fields['question_fi'] = array("integer", $this->getId());
                        $fields['active_fi'] = array("integer", $active_id);
                        $fields['value'] = array("float", (strlen($entered_value)) ? $entered_value : null);
                        $fields['textanswer'] = array("clob", isset($post_data[$this->getId() . "_" . $entered_value . "_other"]) ? $this->stripSlashesAddSpaceFallback($post_data[$this->getId() . "_" . $entered_value . "_other"]) : null);
                        $fields['tstamp'] = array("integer", time());
 
                        $affectedRows = $ilDB->insert("svy_answer", $fields);
                    } else {
                        $return_data[] = array("value" => $entered_value,
                                "textanswer" => $post_data[$this->getId() . "_" . $entered_value . "_other"] ?? "");
                    }
                }
            }
        }
        if ($a_return) {
            return $return_data;
        }
        return null;
    }

toXML()

SurveyMultipleChoiceQuestion::toXML	(	bool	$a_include_header = true,
		bool	$obligatory_state = false
	)

Definition at line 168 of file class.SurveyMultipleChoiceQuestion.php.

     : string {
        $a_xml_writer = new ilXmlWriter();
        $a_xml_writer->xmlHeader();
        $this->insertXML($a_xml_writer, $a_include_header);
        $xml = $a_xml_writer->xmlDumpMem(false);
        if (!$a_include_header) {
            $pos = strpos($xml, "?>");
            $xml = substr($xml, $pos + 2);
        }
        return $xml;
    }

usableForPrecondition()

SurveyMultipleChoiceQuestion::usableForPrecondition

(

)

Returns if the question is usable for preconditions.

Reimplemented from SurveyQuestion.

Definition at line 426 of file class.SurveyMultipleChoiceQuestion.php.

                                           : bool
    {
        return true;
    }

Field Documentation

$categories

SurveyCategories SurveyMultipleChoiceQuestion::$categories

Definition at line 27 of file class.SurveyMultipleChoiceQuestion.php.

---

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

• Modules/SurveyQuestionPool/Questions/class.SurveyMultipleChoiceQuestion.php