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

Inheritance diagram for SurveyQuestionEvaluation:

Collaboration diagram for SurveyQuestionEvaluation:

Public Member Functions
	__construct (SurveyQuestion $a_question, array $a_finished_ids=[])

	getResults ()
	Get results. More...

	getSumScores ()
	Get sum score for this question for all active ids of run. More...

	parseUserSpecificResults ($a_qres, int $a_user_id)

	getGrid ( $a_results, bool $a_abs=true, bool $a_perc=true)
	Get grid data. More...

	getTextAnswers ($a_results)
	Get text answers. More...

	getChart ($a_results)

	getSkippedValue ()
	Get caption for skipped value. More...

	exportResults ( $a_results, bool $a_do_title, bool $a_do_label)

	getExportGrid ($a_results)
	Get grid data. More...

	getUserSpecificVariableTitles (array &$a_title_row, array &$a_title_row2, bool $a_do_title, bool $a_do_label)
	Get title columns for user-specific export. More...

	addUserSpecificResults (array &$a_row, int $a_user_id, $a_results)

Protected Member Functions
	isSumScoreValid (int $nr_answer_records)
	Is sum score ok (question needs to be fully answered) More...

	supportsSumScore ()

	parseResults (ilSurveyEvaluationResults $a_results, array $a_answers, ?SurveyCategories $a_categories=null)
	Parse answer data into results instance. More...

	getChartColors ()

	getSurveyId ()

	getNrOfParticipants ()
	Returns the number of participants for a survey. More...

	getAnswerData ()

Protected Attributes
ilLanguage	$lng

ilDBInterface	$db

SurveyQuestion	$question

array	$finished_ids

int	$chart_width = 400

int	$chart_height = 300

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 Survey question evaluation

Author: Jörg Lützenkirchen luetz.nosp@m.enki.nosp@m.rchen.nosp@m.@lei.nosp@m.fos.c.nosp@m.om

Definition at line 24 of file class.SurveyQuestionEvaluation.php.

Constructor & Destructor Documentation

◆ __construct()

SurveyQuestionEvaluation::__construct	(	SurveyQuestion	$a_question,
		array	$a_finished_ids = `[]`
	)

Definition at line 33 of file class.SurveyQuestionEvaluation.php.

      {
        global $DIC;
 
        $this->lng = $DIC->language();
        $this->db = $DIC->database();
        $this->question = $a_question;
        $this->finished_ids = $a_finished_ids;
    }

References $DIC, and ILIAS\Repository\lng().

Here is the call graph for this function:

Member Function Documentation

◆ addUserSpecificResults()

SurveyQuestionEvaluation::addUserSpecificResults	(	array &	$a_row,
		int	$a_user_id,
			$a_results
	)

abstract

Parameters

array	$a_row	(called by reference)
int	$a_user_id
ilSurveyEvaluationResults \| array	$a_results

Reimplemented in SurveyMatrixQuestionEvaluation, SurveyMetricQuestionEvaluation, SurveyMultipleChoiceQuestionEvaluation, SurveySingleChoiceQuestionEvaluation, and SurveyTextQuestionEvaluation.

◆ exportResults()

SurveyQuestionEvaluation::exportResults	(		$a_results,
		bool	$a_do_title,
		bool	$a_do_label
	)

Parameters

ilSurveyEvaluationResults | array $a_results

Reimplemented in SurveyMatrixQuestionEvaluation.

Definition at line 491 of file class.SurveyQuestionEvaluation.php.

     : array {
        $question = $a_results->getQuestion();
 
        $res = array();
 
        if ($a_do_title) {
            $res[] = $question->getTitle();
        }
        if ($a_do_label) {
            $res[] = $question->label;
        }
 
        $res[] = $question->getQuestiontext();
        $res[] = SurveyQuestion::_getQuestionTypeName($question->getQuestionType());
 
        $res[] = (int) $a_results->getUsersAnswered();
        $res[] = (int) $a_results->getUsersSkipped();
 
        // :TODO:
        $res[] = is_array($a_results->getModeValue())
            ? implode(", ", $a_results->getModeValue())
            : $a_results->getModeValue();
 
        $res[] = $a_results->getModeValueAsText();
        $res[] = (int) $a_results->getModeNrOfSelections();
 
        // :TODO:
        $res[] = $a_results->getMedianAsText();
 
        $res[] = $a_results->getMean();
 
        return array($res);
    }

◆ getAnswerData()

SurveyQuestionEvaluation::getAnswerData ( )

protected

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

                                      : array
    {
        $ilDB = $this->db;
 
        $res = array();
 
        $sql = "SELECT svy_answer.* FROM svy_answer" .
            " JOIN svy_finished ON (svy_finished.finished_id = svy_answer.active_fi)" .
            " WHERE svy_answer.question_fi = " . $ilDB->quote($this->question->getId(), "integer") .
            " AND svy_finished.survey_fi = " . $ilDB->quote($this->getSurveyId(), "integer");
        if (count($this->finished_ids) > 0) {
            $sql .= " AND " . $ilDB->in("svy_finished.finished_id", $this->finished_ids, "", "integer");
        }
        $set = $ilDB->query($sql);
        while ($row = $ilDB->fetchAssoc($set)) {
            $res[(int) $row["rowvalue"]][(int) $row["active_fi"]][] = array(
                "value" => $row["value"],
                "text" => $row["textanswer"],
                "tstamp" => $row["tstamp"]
            );
        }
 
        return $res;
    }

References $ilDB, $res, and ILIAS\Repository\int().

Referenced by SurveyMatrixQuestionEvaluation\getResults(), and getResults().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ getChart()

SurveyQuestionEvaluation::getChart ( $a_results )

Parameters

ilSurveyEvaluationResults | array $a_results

Reimplemented in SurveyMatrixQuestionEvaluation, SurveyMetricQuestionEvaluation, and SurveyTextQuestionEvaluation.

Definition at line 372 of file class.SurveyQuestionEvaluation.php.

                                        : ?array
    {
        $chart = ilChart::getInstanceByType(ilChart::TYPE_GRID, $a_results->getQuestion()->getId());
        $chart->setYAxisToInteger(true);
 
        $colors = $this->getChartColors();
        $chart->setColors($colors);
 
        // :TODO:
        $chart->setSize((string) $this->chart_width, (string) $this->chart_height);
 
        $vars = $a_results->getVariables();
 
        $legend = $labels = array();
        foreach ($vars as $idx => $var) {
            $data = $chart->getDataInstance(ilChartGrid::DATA_BARS);
            $data->setBarOptions(0.5, "center");
            $data->setFill(1);
            $chart->addData($data);
 
            // labels
            $labels[$idx] = "";
            $legend[] = array(
                $var->cat->title,
                $colors[$idx]
            );
            $data->setLabel($var->cat->title);
 
            $data->addPoint($idx, $var->abs);
        }
 
        $chart->setTicks($labels, false, true);
 
        return array(
            $chart->getHTML(),
            $legend
        );
    }

References $data, ilChartGrid\DATA_BARS, ilChart\getInstanceByType(), ilSurveyEvaluationResults\getQuestion(), ilSurveyEvaluationResults\getVariables(), and ilChart\TYPE_GRID.

Here is the call graph for this function:

◆ getChartColors()

SurveyQuestionEvaluation::getChartColors ( )

protected

Definition at line 347 of file class.SurveyQuestionEvaluation.php.

                                       : array
    {
        return array(
            // flot "default" theme
            "#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed",
            // http://godsnotwheregodsnot.blogspot.de/2012/09/color-distribution-methodology.html
            "#1CE6FF", "#FF34FF", "#FF4A46", "#008941", "#006FA6", "#A30059",
            "#FFDBE5", "#7A4900", "#0000A6", "#63FFAC", "#B79762", "#004D43", "#8FB0FF", "#997D87",
            "#5A0007", "#809693", "#FEFFE6", "#1B4400", "#4FC601", "#3B5DFF", "#4A3B53", "#FF2F80",
            "#61615A", "#BA0900", "#6B7900", "#00C2A0", "#FFAA92", "#FF90C9", "#B903AA", "#D16100",
            "#DDEFFF", "#000035", "#7B4F4B", "#A1C299", "#300018", "#0AA6D8", "#013349", "#00846F",
            "#372101", "#FFB500", "#C2FFED", "#A079BF", "#CC0744", "#C0B9B2", "#C2FF99", "#001E09",
            "#00489C", "#6F0062", "#0CBD66", "#EEC3FF", "#456D75", "#B77B68", "#7A87A1", "#788D66",
            "#885578", "#FAD09F", "#FF8A9A", "#D157A0", "#BEC459", "#456648", "#0086ED", "#886F4C",
            "#34362D", "#B4A8BD", "#00A6AA", "#452C2C", "#636375", "#A3C8C9", "#FF913F", "#938A81",
            "#575329", "#00FECF", "#B05B6F", "#8CD0FF", "#3B9700", "#04F757", "#C8A1A1", "#1E6E00",
            "#7900D7", "#A77500", "#6367A9", "#A05837", "#6B002C", "#772600", "#D790FF", "#9B9700",
            "#549E79", "#FFF69F", "#201625", "#72418F", "#BC23FF", "#99ADC0", "#3A2465", "#922329",
            "#5B4534", "#FDE8DC", "#404E55", "#0089A3", "#CB7E98", "#A4E804", "#324E72", "#6A3A4C"
        );
    }

◆ getExportGrid()

SurveyQuestionEvaluation::getExportGrid ( $a_results )

Get grid data.

Parameters

ilSurveyEvaluationResults | array $a_results

Reimplemented in SurveyMetricQuestionEvaluation, and SurveyTextQuestionEvaluation.

Definition at line 533 of file class.SurveyQuestionEvaluation.php.

                                             : array
    {
        $lng = $this->lng;
 
        $res = array(
            "cols" => array(
                $lng->txt("title"),
                $lng->txt("value"),
                $lng->txt("category_nr_selected"),
                $lng->txt("svy_fraction_of_selections")
            ),
            "rows" => array()
        );
 
        $vars = $a_results->getVariables();
        if ($vars) {
            foreach ($vars as $var) {
                $res["rows"][] = array(
                    $var->cat->title,
                    $var->cat->scale,
                    $var->abs,
                    $var->perc
                        ? sprintf("%.2f", $var->perc * 100) . "%"
                        : "0%"
                );
            }
        }
 
        return $res;
    }

References $lng, $res, and ilSurveyEvaluationResults\getVariables().

Here is the call graph for this function:

◆ getGrid()

SurveyQuestionEvaluation::getGrid	(		$a_results,
		bool	$a_abs = `true`,
		bool	$a_perc = `true`
	)

Get grid data.

Parameters

ilSurveyEvaluationResults | array $a_results

Reimplemented in SurveyMatrixQuestionEvaluation, SurveyMetricQuestionEvaluation, and SurveyTextQuestionEvaluation.

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

     : array {
        $lng = $this->lng;
 
        if ($a_abs && $a_perc) {
            $cols = array(
                $lng->txt("category_nr_selected"),
                $lng->txt("svy_fraction_of_selections")
            );
        } elseif ($a_abs) {
            $cols = array(
                $lng->txt("category_nr_selected")
            );
        } else {
            $cols = array(
                $lng->txt("svy_fraction_of_selections")
            );
        }
 
        $res = array(
            "cols" => $cols,
            "rows" => array()
        );
 
        $vars = $a_results->getVariables();
        if ($vars) {
            foreach ($vars as $var) {
                $perc = $var->perc
                    ? sprintf("%.2f", $var->perc * 100) . "%"
                    : "0%";
 
                if ($a_abs && $a_perc) {
                    $res["rows"][] = array(
                        $var->cat->title,
                        $var->abs,
                        $perc
                    );
                } elseif ($a_abs) {
                    $res["rows"][] = array(
                        $var->cat->title,
                        $var->abs
                    );
                } else {
                    $res["rows"][] = array(
                        $var->cat->title,
                        $perc
                    );
                }
            }
        }
 
        return $res;
    }

References $lng.

◆ getNrOfParticipants()

SurveyQuestionEvaluation::getNrOfParticipants ( )

protected

Returns the number of participants for a survey.

Definition at line 445 of file class.SurveyQuestionEvaluation.php.

                                            : int
    {
        $ilDB = $this->db;
 
        if (count($this->finished_ids) > 0) {
            return count($this->finished_ids);
        }
 
        $set = $ilDB->query("SELECT finished_id FROM svy_finished" .
            " WHERE survey_fi = " . $ilDB->quote($this->getSurveyId(), "integer"));
        return $set->numRows();
    }

References $ilDB.

◆ getResults()

SurveyQuestionEvaluation::getResults ( )

Get results.

Returns: ilSurveyEvaluationResults|array

Reimplemented in SurveyMatrixQuestionEvaluation.

Definition at line 55 of file class.SurveyQuestionEvaluation.php.

    {
        $results = new ilSurveyEvaluationResults($this->question);
        $answers = $this->getAnswerData();
 
        $this->parseResults(
            $results,
            (array) ($answers[0] ?? []),
            method_exists($this->question, "getCategories")
                ? $this->question->getCategories()
                : null
        );
 
        return $results;
    }

References $results, getAnswerData(), and parseResults().

Here is the call graph for this function:

◆ getSkippedValue()

SurveyQuestionEvaluation::getSkippedValue ( )

Get caption for skipped value.

Definition at line 419 of file class.SurveyQuestionEvaluation.php.

                                     : string
    {
        return ilObjSurvey::getSurveySkippedValue();
    }

References ilObjSurvey\getSurveySkippedValue().

Here is the call graph for this function:

◆ getSumScores()

SurveyQuestionEvaluation::getSumScores ( )

Get sum score for this question for all active ids of run.

Returns: array, key is active id, value is sum score for question|null if not supported

Definition at line 75 of file class.SurveyQuestionEvaluation.php.

                                  : array
    {
        $ilDB = $this->db;
 
        $res = [];
 
        $sql = "SELECT svy_answer.* FROM svy_answer" .
            " JOIN svy_finished ON (svy_finished.finished_id = svy_answer.active_fi)" .
            " WHERE svy_answer.question_fi = " . $ilDB->quote($this->question->getId(), "integer") .
            " AND svy_finished.survey_fi = " . $ilDB->quote($this->getSurveyId(), "integer");
        if (count($this->finished_ids) > 0) {
            $sql .= " AND " . $ilDB->in("svy_finished.finished_id", $this->finished_ids, "", "integer");
        }
        $set = $ilDB->query($sql);
        $cnt_answer_records = [];
        while ($row = $ilDB->fetchAssoc($set)) {
            $key = (int) $row["active_fi"];
            $cnt_answer_records[$key] = ($cnt_answer_records[$key] ?? 0) + 1;
            if ($this->supportsSumScore()) {
                $res[$key] = ($res[$key] ?? 0) + $row["value"] + 1;
            } else {
                $res[$key] = 0;
            }
        }
 
        foreach ($res as $active_id => $sum_score) {
            if (!$this->isSumScoreValid($cnt_answer_records[$active_id])) {
                $res[$active_id] = null;
            }
        }
        return $res;
    }

References $db, $ilDB, $res, getSurveyId(), ILIAS\Repository\int(), isSumScoreValid(), and supportsSumScore().

Here is the call graph for this function:

◆ getSurveyId()

SurveyQuestionEvaluation::getSurveyId ( )

protected

Definition at line 429 of file class.SurveyQuestionEvaluation.php.

                                    : int
    {
        $ilDB = $this->db;
 
        // #18968
        $set = $ilDB->query("SELECT survey_fi" .
            " FROM svy_svy_qst" .
            " WHERE question_fi = " . $ilDB->quote($this->question->getId(), "integer"));
        $row = $ilDB->fetchAssoc($set);
        return $row["survey_fi"];
    }

References $ilDB.

Referenced by getSumScores().

Here is the caller graph for this function:

◆ getTextAnswers()

SurveyQuestionEvaluation::getTextAnswers ( $a_results )

Get text answers.

Parameters

ilSurveyEvaluationResults | array $a_results

Reimplemented in SurveyMatrixQuestionEvaluation.

Definition at line 342 of file class.SurveyQuestionEvaluation.php.

                                              : array
    {
        return $a_results->getMappedTextAnswers();
    }

References ilSurveyEvaluationResults\getMappedTextAnswers().

Here is the call graph for this function:

◆ getUserSpecificVariableTitles()

SurveyQuestionEvaluation::getUserSpecificVariableTitles	(	array &	$a_title_row,
		array &	$a_title_row2,
		bool	$a_do_title,
		bool	$a_do_label
	)

Get title columns for user-specific export.

Parameters

array	$a_title_row	(called by reference)
array	$a_title_row2	(called by reference)
bool	$a_do_title
bool	$a_do_label

Reimplemented in SurveyMatrixQuestionEvaluation, SurveyMultipleChoiceQuestionEvaluation, and SurveySingleChoiceQuestionEvaluation.

Definition at line 571 of file class.SurveyQuestionEvaluation.php.

     : void {
        // type-specific
    }

◆ isSumScoreValid()

SurveyQuestionEvaluation::isSumScoreValid ( int $nr_answer_records )

protected

Is sum score ok (question needs to be fully answered)

Reimplemented in SurveyMatrixQuestionEvaluation.

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

                                                              : bool
    {
        return true;
    }

Referenced by getSumScores().

Here is the caller graph for this function:

◆ parseResults()

SurveyQuestionEvaluation::parseResults	(	ilSurveyEvaluationResults	$a_results,
		array	$a_answers,
		?SurveyCategories	$a_categories = `null`
	)

protected

Parse answer data into results instance.

Reimplemented in SurveyMetricQuestionEvaluation.

Definition at line 124 of file class.SurveyQuestionEvaluation.php.

     : void {
        $num_users_answered = count($a_answers);
 
        $a_results->setUsersAnswered($num_users_answered);
        $a_results->setUsersSkipped($this->getNrOfParticipants() - $num_users_answered);
 
        // parse answers
        $has_multi = false;
        $selections = array();
        foreach ($a_answers as $active_id => $answers) {
            // :TODO:
            if (count($answers) > 1) {
                $has_multi = true;
            }
            foreach ($answers as $answer) {
                // map selection value to scale/category
                if ($a_categories &&
                    $answer["value"] != "") {
                    $scale = $a_categories->getCategoryForScale($answer["value"] + 1);
                    if ($scale instanceof ilSurveyCategory) {
                        $answer["value"] = $scale->scale;
                    }
                }
                $parsed = new ilSurveyEvaluationResultsAnswer(
                    $active_id,
                    (float) $answer["value"],
                    (string) $answer["text"],
                    $answer["tstamp"]
                );
                $a_results->addAnswer($parsed);
 
                if ($answer["value"] != "") {
                    if (!isset($selections[(string) $answer["value"]])) {
                        $selections[(string) $answer["value"]] = 0;
                    }
                    $selections[(string) $answer["value"]]++;
                }
            }
        }
 
        $total = array_sum($selections);
 
        if ($total) {
            // mode
            $mode_nr = max($selections);
            $tmp_mode = $selections;
            asort($tmp_mode, SORT_NUMERIC);
            $mode = array_keys($tmp_mode, $mode_nr);
            $a_results->setMode($mode, $mode_nr);
 
            if (!$has_multi) {
                // median
                ksort($selections, SORT_NUMERIC);
                $median = array();
                foreach ($selections as $value => $count) {
                    for ($i = 0; $i < $count; $i++) {
                        $median[] = $value;
                    }
                }
                if ($total % 2 === 0) {
                    $lower = $median[($total / 2) - 1];
                    $upper = $median[($total / 2)];
                    $median_value = 0.5 * ($lower + $upper);
                    if ($a_categories &&
                        round($median_value) != $median_value) {
                        // mapping calculated value to scale values
                        $median_value = array($lower, $upper);
                    }
                } else {
                    $median_value = $median[(($total + 1) / 2) - 1];
                }
                $a_results->setMedian($median_value);
            }
        }
 
        if ($a_categories) {
            // selections by category
            for ($c = 0; $c < $a_categories->getCategoryCount(); $c++) {
                $cat = $a_categories->getCategory($c);
                $scale = $cat->scale;
 
                $perc = null;
                if ($total && isset($selections[$scale])) {
                    $perc = $selections[$scale] / $total;
                }
                $var = new ilSurveyEvaluationResultsVariable(
                    $cat,
                    $selections[$scale] ?? null,
                    $perc
                );
                $a_results->addVariable($var);
            }
        }
    }

Referenced by SurveyMatrixQuestionEvaluation\getResults(), and getResults().

Here is the caller graph for this function:

◆ parseUserSpecificResults()

SurveyQuestionEvaluation::parseUserSpecificResults	(		$a_qres,
		int	$a_user_id
	)

Parameters

$a_qres ilSurveyEvaluationResults|array

Definition at line 226 of file class.SurveyQuestionEvaluation.php.

                                                                     : array
    {
        $parsed_results = array();
        $tmp = "";
        if (is_array($a_qres)) {
            foreach ($a_qres as $row_idx => $row_results) {
                $row_title = $row_results[0];
                $user_results = $row_results[1]->getUserResults($a_user_id);
                if ($user_results) {
                    foreach ($user_results as $item) {
                        // :TODO: layout
                        $tmp = $row_title . ": ";
                        if ($item[0] !== "") {
                            $tmp .= $item[0];
                        }
                        if ($item[1] && $item[0]) {
                            $tmp .= ", \"" . nl2br($item[1]) . "\"";
                        } elseif ($item[1]) {
                            $tmp .= "\"" . nl2br($item[1]) . "\"";
                        }
                        $parsed_results[$row_idx . "-" . $item[2]] = $tmp;
                    }
                }
            }
        } else {
            $user_results = $a_qres->getUserResults($a_user_id);
            if ($user_results) {
                foreach ($user_results as $item) {
                    // :TODO: layout
                    if ($item[0] !== "") {
                        $tmp = $item[0];
                    }
                    if ($item[1] && $item[0]) {
                        $tmp .= ", \"" . nl2br($item[1]) . "\"";
                    } elseif ($item[1]) {
                        $tmp = "\"" . nl2br($item[1]) . "\"";
                    }
                    $parsed_results[(int) $item[2]] = $tmp;
                }
            }
        }
 
        return $parsed_results;
    }

References ILIAS\Repository\int().

Here is the call graph for this function:

◆ supportsSumScore()

SurveyQuestionEvaluation::supportsSumScore ( )

protected

Reimplemented in SurveyMatrixQuestionEvaluation, SurveyMultipleChoiceQuestionEvaluation, and SurveySingleChoiceQuestionEvaluation.

Definition at line 116 of file class.SurveyQuestionEvaluation.php.

                                         : bool
    {
        return false;
    }

Referenced by getSumScores().

Here is the caller graph for this function:

Field Documentation

◆ $chart_height

int SurveyQuestionEvaluation::$chart_height = 300

protected

Definition at line 31 of file class.SurveyQuestionEvaluation.php.

◆ $chart_width

int SurveyQuestionEvaluation::$chart_width = 400

protected

Definition at line 30 of file class.SurveyQuestionEvaluation.php.

◆ $db

ilDBInterface SurveyQuestionEvaluation::$db

protected

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

Referenced by getSumScores().

◆ $finished_ids

array SurveyQuestionEvaluation::$finished_ids

protected

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

◆ $lng

ilLanguage SurveyQuestionEvaluation::$lng

protected

Definition at line 26 of file class.SurveyQuestionEvaluation.php.

Referenced by SurveyMultipleChoiceQuestionEvaluation\getUserSpecificVariableTitles(), and SurveySingleChoiceQuestionEvaluation\getUserSpecificVariableTitles().

◆ $question

SurveyQuestion SurveyQuestionEvaluation::$question

protected

Definition at line 28 of file class.SurveyQuestionEvaluation.php.

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

components/ILIAS/SurveyQuestionPool/Questions/class.SurveyQuestionEvaluation.php

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ addUserSpecificResults()

◆ exportResults()

◆ getAnswerData()

◆ getChart()

◆ getChartColors()

◆ getExportGrid()

◆ getGrid()

◆ getNrOfParticipants()

◆ getResults()

◆ getSkippedValue()

◆ getSumScores()

◆ getSurveyId()

◆ getTextAnswers()

◆ getUserSpecificVariableTitles()

◆ isSumScoreValid()

◆ parseResults()

◆ parseUserSpecificResults()

◆ supportsSumScore()

Field Documentation

◆ $chart_height

◆ $chart_width

◆ $db

◆ $finished_ids

◆ $lng

◆ $question