Public Member Functions | Data Fields

SurveyMetricQuestion Class Reference
[Modules/SurveyQuestionPool]

Metric survey question. More...

Inheritance diagram for SurveyMetricQuestion:
Collaboration diagram for SurveyMetricQuestion:

Public Member Functions

 SurveyMetricQuestion ($title="", $description="", $author="", $questiontext="", $owner=-1, $subtype=SUBTYPE_NON_RATIO)
 SurveyMetricQuestion constructor.
 setSubtype ($subtype=SUBTYPE_NON_RATIO)
 Sets the question subtype.
 setMinimum ($minimum=0)
 Sets the minimum value.
 setMaximum ($maximum="")
 Sets the maximum value.
 getSubtype ()
 Gets the question subtype.
 getMinimum ()
 Returns the minimum value of the question.
 getMaximum ()
 Returns the maximum value of the question.
 _getQuestionDataArray ($id)
 Returns the question data fields from the database.
 loadFromDb ($id)
 Loads a SurveyMetricQuestion object from the database.
 isComplete ()
 Returns true if the question is complete for use.
 saveToDb ($original_id="")
 Saves a SurveyMetricQuestion object to a database.
 toXML ($a_include_header=TRUE, $obligatory_state="")
 Returns an xml representation of the question.
 insertXML (&$a_xml_writer, $a_include_header=TRUE, $obligatory_state="")
 Adds the question XML to a given XMLWriter object.
 syncWithOriginal ()
 getQuestionTypeID ()
 Returns the question type ID of the question.
 getQuestionType ()
 Returns the question type of the question.
 getAdditionalTableName ()
 Returns the name of the additional question data table in the database.
getWorkingDataFromUserInput ($post_data)
 Creates the user data of the survey_answer table from the POST data.
 checkUserInput ($post_data, $survey_id)
 Checks the input of the active user for obligatory status and entered values.
 saveUserInput ($post_data, $active_id)
getCumulatedResults ($survey_id, $nr_of_users)
 setExportDetailsXLS (&$workbook, &$format_title, &$format_bold, &$eval_data)
 Creates an Excel worksheet for the detailed cumulated results of this question.
 addUserSpecificResultsData (&$a_array, &$resultset)
 Adds the values for the user specific results export for a given user.
getUserAnswers ($survey_id)
 Returns an array containing all answers to this question in a given survey.
 importResponses ($a_data)
 Import response data from the question import file.
 usableForPrecondition ()
 Returns if the question is usable for preconditions.
 getAvailableRelations ()
 Returns the available relations for the question.
 outPreconditionSelectValue (&$template)
 Creates a value selection for preconditions.
 getPreconditionSelectValue ($default="")
 Creates a value selection for preconditions.
 outChart ($survey_id, $type="")
 Creates an image visualising the results of the question.
 getMinMaxText ()
 Creates a text for the input range of the metric question.

Data Fields

 $subtype
 $minimum
 $maximum

Detailed Description

Metric survey question.

The SurveyMetricQuestion class defines and encapsulates basic methods and attributes for metric survey question types.

Author:
Helmut Schottmüller <helmut.schottmueller@mac.com>
Version:
Id:
class.SurveyMetricQuestion.php 15209 2007-11-05 22:17:52Z hschottm

Definition at line 42 of file class.SurveyMetricQuestion.php.


Member Function Documentation

SurveyMetricQuestion::_getQuestionDataArray ( id  ) 

Returns the question data fields from the database.

Returns the question data fields from the database

Parameters:
integer $id The question ID from the database
Returns:
array Array containing the question fields and data from the database public

Reimplemented from SurveyQuestion.

Definition at line 195 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$id.

        {
                global $ilDB;
                
    $query = sprintf("SELECT survey_question.*, survey_question_metric.* FROM survey_question, survey_question_metric WHERE survey_question.question_id = %s AND survey_question.question_id = survey_question_metric.question_fi",
      $ilDB->quote($id)
    );
    $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        return $result->fetchRow(DB_FETCHMODE_ASSOC);
                }
                else
                {
                        return array();
                }
        }

SurveyMetricQuestion::addUserSpecificResultsData ( &$  a_array,
&$  resultset 
)

Adds the values for the user specific results export for a given user.

Adds the values for the user specific results export for a given user

Parameters:
array $a_array An array which is used to append the values
array $resultset The evaluation data for a given user public

Reimplemented from SurveyQuestion.

Definition at line 925 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::getId().

        {
                if (count($resultset["answers"][$this->getId()]))
                {
                        foreach ($resultset["answers"][$this->getId()] as $key => $answer)
                        {
                                array_push($a_array, $answer["value"]);
                        }
                }
                else
                {
                        array_push($a_array, $this->lng->txt("skipped"));
                }
        }

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SurveyMetricQuestion::checkUserInput ( post_data,
survey_id 
)

Checks the input of the active user for obligatory status and entered values.

Checks the input of the active user for obligatory status and entered values

Parameters:
array $post_data The contents of the $_POST array
integer $survey_id The database ID of the active survey
Returns:
string Empty string if the input is ok, an error message otherwise public

Definition at line 685 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$survey_id, SurveyQuestion::getId(), getMaximum(), getMinimum(), and SurveyQuestion::getObligatory().

        {
                $entered_value = $post_data[$this->getId() . "_metric_question"];
                // replace german notation with international notation
                $entered_value = str_replace(",", ".", $entered_value);
                
                if ((!$this->getObligatory($survey_id)) && (strlen($entered_value) == 0)) return "";
                
                if (strlen($entered_value) == 0) return $this->lng->txt("survey_question_obligatory");
                
                if (strlen($this->getMinimum()))
                {
                        if ($entered_value < $this->getMinimum())
                        {
                                return $this->lng->txt("metric_question_out_of_bounds");
                        }
                }

                if (strlen($this->getMaximum()))
                {
                        if (($this->getMaximum() == 1) && ($this->getMaximum() < $this->getMinimum()))
                        {
                                // old &infty; values as maximum
                        }
                        else
                        {
                                if ($entered_value > $this->getMaximum())
                                {
                                        return $this->lng->txt("metric_question_out_of_bounds");
                                }
                        }
                }

                if (!is_numeric($entered_value))
                {
                        return $this->lng->txt("metric_question_not_a_value");
                }

                if (($this->getSubType() == SUBTYPE_RATIO_ABSOLUTE) && (intval($entered_value) != doubleval($entered_value)))
                {
                        return $this->lng->txt("metric_question_floating_point");
                }
                return "";
        }

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SurveyMetricQuestion::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

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

        {
                return "survey_question_metric";
        }

SurveyMetricQuestion::getAvailableRelations (  ) 

Returns the available relations for the question.

Returns the available relations for the question

Returns:
array An array containing the available relations public

Reimplemented from SurveyQuestion.

Definition at line 1005 of file class.SurveyMetricQuestion.php.

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

& SurveyMetricQuestion::getCumulatedResults ( survey_id,
nr_of_users 
)

Definition at line 756 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$survey_id, $total, and SurveyQuestion::getId().

Referenced by outChart().

        {
                global $ilDB;
                
                $question_id = $this->getId();
                
                $result_array = array();
                $cumulated = array();

                $query = sprintf("SELECT survey_answer.* FROM survey_answer, survey_finished WHERE survey_answer.question_fi = %s AND survey_finished.survey_fi = %s AND survey_finished.finished_id = survey_answer.active_fi",
                        $ilDB->quote($question_id),
                        $ilDB->quote($survey_id)
                );
                $result = $ilDB->query($query);
                
                while ($row = $result->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $cumulated["$row->value"]++;
                }
                asort($cumulated, SORT_NUMERIC);
                end($cumulated);
                $numrows = $result->numRows();
                $result_array["USERS_ANSWERED"] = $result->numRows();
                $result_array["USERS_SKIPPED"] = $nr_of_users - $result->numRows();
                $result_array["MODE"] = key($cumulated);
                $result_array["MODE_VALUE"] = key($cumulated);
                $result_array["MODE_NR_OF_SELECTIONS"] = $cumulated[key($cumulated)];
                ksort($cumulated, SORT_NUMERIC);
                $counter = 0;
                foreach ($cumulated as $value => $nr_of_users)
                {
                        $percentage = 0;
                        if ($numrows > 0)
                        {
                                $percentage = (float)($nr_of_users/$numrows);
                        }
                        $result_array["values"][$counter++] = array("value" => $value, "selected" => (int)$nr_of_users, "percentage" => $percentage);
                }
                $median = array();
                $total = 0;
                $x_i = 0;
                $p_i = 1;
                $x_i_inv = 0;
                $sum_part_zero = false;
                foreach ($cumulated as $value => $key)
                {
                        $total += $key;
                        for ($i = 0; $i < $key; $i++)
                        {
                                array_push($median, $value);
                                $x_i += $value;
                                $p_i *= $value;
                                if ($value != 0)
                                {
                                        $sum_part_zero = true;
                                        $x_i_inv += 1/$value;
                                }
                        }
                }
                if ($total > 0)
                {
                        if (($total % 2) == 0)
                        {
                                $median_value = 0.5 * ($median[($total/2)-1] + $median[($total/2)]);
                        }
                        else
                        {
                                $median_value = $median[(($total+1)/2)-1];
                        }
                }
                else
                {
                        $median_value = "";
                }
                if ($total > 0)
                {
                        if (($x_i/$total) == (int)($x_i/$total))
                        {
                                $result_array["ARITHMETIC_MEAN"] = $x_i/$total;
                        }
                        else
                        {
                                $result_array["ARITHMETIC_MEAN"] = sprintf("%.2f", $x_i/$total);
                        }
                }
                else
                {
                        $result_array["ARITHMETIC_MEAN"] = "";
                }
                $result_array["MEDIAN"] = $median_value;
                $result_array["QUESTION_TYPE"] = "SurveyMetricQuestion";
                return $result_array;
        }

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SurveyMetricQuestion::getMaximum (  ) 

Returns the maximum value of the question.

Returns the maximum value of the question

Returns:
double The maximum value of the question public
See also:
$maximum

Definition at line 181 of file class.SurveyMetricQuestion.php.

Referenced by checkUserInput(), getMinMaxText(), and insertXML().

        {
                return $this->maximum;
        }

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SurveyMetricQuestion::getMinimum (  ) 

Returns the minimum value of the question.

Returns the minimum value of the question

Returns:
double The minimum value of the question public
See also:
$minimum

Definition at line 163 of file class.SurveyMetricQuestion.php.

References getSubtype().

Referenced by checkUserInput(), getMinMaxText(), and insertXML().

        {
                if ((strlen($this->minimum) == 0) && ($this->getSubtype() > 3))
                {
                        $this->minimum = 0;
                }
                return $this->minimum;
        }

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SurveyMetricQuestion::getMinMaxText (  ) 

Creates a text for the input range of the metric question.

Creates a text for the input range of the metric question

Returns:
string Range text private

Definition at line 1091 of file class.SurveyMetricQuestion.php.

References getMaximum(), and getMinimum().

        {
                $min = $this->getMinimum();
                $max = $this->getMaximum();
                if (strlen($min) && strlen($max))
                {
                        return "(" . $min . " " . strtolower($this->lng->txt("to")) . " " . $max . ")";
                }
                else if (strlen($min))
                {
                        return "(&gt;= " . $min . ")";
                }
                else if (strlen($max))
                {
                        return "(&lt;= " . $max . ")";
                }
                else
                {
                        return "";
                }
        }

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SurveyMetricQuestion::getPreconditionSelectValue ( default = ""  ) 

Creates a value selection for preconditions.

Creates a value selection for preconditions

Returns:
The HTML code for the precondition value selection public

Reimplemented from SurveyQuestion.

Definition at line 1033 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$lng, and ilUtil::prepareFormOutput().

        {
                global $lng;
                
                include_once "./classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_svy_svy_precondition_select_value_textfield.html", TRUE, TRUE, "Modules/Survey");
                if (strlen($default))
                {
                        $template->setCurrentBlock("textfield");
                        $template->setVariable("TEXTFIELD_VALUE", " value=\"" . ilUtil::prepareFormOutput($default) . "\"");
                        $template->parseCurrentBlock();
                }
                else
                {
                        $template->touchBlock("textfield");
                }
                $template->setVariable("SELECT_VALUE", $lng->txt("step") . " 3: " . $lng->txt("enter_value"));
                return $template->get();
        }

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SurveyMetricQuestion::getQuestionType (  ) 

Returns the question type of the question.

Returns the question type of the question

Returns:
integer The question type of the question public

Reimplemented from SurveyQuestion.

Definition at line 636 of file class.SurveyMetricQuestion.php.

        {
                return "SurveyMetricQuestion";
        }

SurveyMetricQuestion::getQuestionTypeID (  ) 

Returns the question type ID of the question.

Returns the question type ID of the question

Returns:
integer The question type of the question public

Reimplemented from SurveyQuestion.

Definition at line 617 of file class.SurveyMetricQuestion.php.

        {
                global $ilDB;
                $query = sprintf("SELECT questiontype_id FROM survey_questiontype WHERE type_tag = %s",
                        $ilDB->quote($this->getQuestionType())
                );
                $result = $ilDB->query($query);
                $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                return $row["questiontype_id"];
        }

SurveyMetricQuestion::getSubtype (  ) 

Gets the question subtype.

Gets the question subtype

Returns:
integer The question subtype public
See also:
$subtype

Definition at line 149 of file class.SurveyMetricQuestion.php.

Referenced by getMinimum(), insertXML(), and setExportDetailsXLS().

        {
    return $this->subtype;
  }

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& SurveyMetricQuestion::getUserAnswers ( survey_id  ) 

Returns an array containing all answers to this question in a given survey.

Returns an array containing all answers to this question in a given survey

Parameters:
integer $survey_id The database ID of the survey
Returns:
array An array containing the answers to the question. The keys are either the user id or the anonymous id public

Reimplemented from SurveyQuestion.

Definition at line 949 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$survey_id, and SurveyQuestion::getId().

        {
                global $ilDB;
                
                $answers = array();

                $query = sprintf("SELECT survey_answer.* FROM survey_answer, survey_finished WHERE survey_finished.survey_fi = %s AND survey_answer.question_fi = %s AND survey_finished.finished_id = survey_answer.active_fi",
                        $ilDB->quote($survey_id),
                        $ilDB->quote($this->getId())
                );
                $result = $ilDB->query($query);
                while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $answers[$row["active_fi"]] = $row["value"];
                }
                return $answers;
        }

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& SurveyMetricQuestion::getWorkingDataFromUserInput ( post_data  ) 

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

Creates the user data of the survey_answer table from the POST data

Returns:
array User data according to the survey_answer table public

Reimplemented from SurveyQuestion.

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

References $data, and SurveyQuestion::getId().

        {
                $entered_value = $post_data[$this->getId() . "_metric_question"];
                $data = array();
                if (strlen($entered_value))
                {
                        array_push($data, array("value" => $entered_value));
                }
                return $data;
        }

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SurveyMetricQuestion::importResponses ( a_data  ) 

Import response data from the question import file.

Import response data from the question import file

Returns:
array $a_data Array containing the response data public

Reimplemented from SurveyQuestion.

Definition at line 975 of file class.SurveyMetricQuestion.php.

References $data, SurveyQuestion::$id, setMaximum(), and setMinimum().

        {
                foreach ($a_data as $id => $data)
                {
                        $this->setMinimum($data["min"]);
                        $this->setMaximum($data["max"]);
                }
        }

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SurveyMetricQuestion::insertXML ( &$  a_xml_writer,
a_include_header = TRUE,
obligatory_state = "" 
)

Adds the question XML to a given XMLWriter object.

Adds the question XML to a given XMLWriter object

Parameters:
object $a_xml_writer The XMLWriter object
boolean $a_include_header Determines wheather or not the XML should be used
string $obligatory_state The value of the obligatory state public

Definition at line 449 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::addMaterialTag(), SurveyQuestion::getAuthor(), SurveyQuestion::getDescription(), SurveyQuestion::getId(), getMaximum(), getMinimum(), SurveyQuestion::getObligatory(), SurveyQuestion::getQuestiontext(), getSubtype(), and SurveyQuestion::getTitle().

Referenced by toXML().

        {
                $attrs = array(
                        "id" => $this->getId(),
                        "title" => $this->getTitle(),
                        "type" => $this->getQuestiontype(),
                        "subtype" => $this->getSubtype(),
                        "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());
                $a_xml_writer->xmlStartTag("questiontext");
                $this->addMaterialTag($a_xml_writer, $this->getQuestiontext());
                $a_xml_writer->xmlEndTag("questiontext");

                $a_xml_writer->xmlStartTag("responses");
                switch ($this->getSubtype())
                {
                        case 3:
                                $attrs = array(
                                        "id" => "0",
                                        "format" => "double"
                                );
                                if (strlen($this->getMinimum()))
                                {
                                        $attrs["min"] = $this->getMinimum();
                                }
                                if (strlen($this->getMaximum()))
                                {
                                        $attrs["max"] = $this->getMaximum();
                                }
                                break;
                        case 4:
                                $attrs = array(
                                        "id" => "0",
                                        "format" => "double"
                                );
                                if (strlen($this->getMinimum()))
                                {
                                        $attrs["min"] = $this->getMinimum();
                                }
                                if (strlen($this->getMaximum()))
                                {
                                        $attrs["max"] = $this->getMaximum();
                                }
                                break;
                        case 5:
                                $attrs = array(
                                        "id" => "0",
                                        "format" => "integer"
                                );
                                if (strlen($this->getMinimum()))
                                {
                                        $attrs["min"] = $this->getMinimum();
                                }
                                if (strlen($this->getMaximum()))
                                {
                                        $attrs["max"] = $this->getMaximum();
                                }
                                break;
                }
                $a_xml_writer->xmlStartTag("response_num", $attrs);
                $a_xml_writer->xmlEndTag("response_num");

                $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->xmlEndTag("question");
        }

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SurveyMetricQuestion::isComplete (  ) 

Returns true if the question is complete for use.

Returns true if the question is complete for use

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

Reimplemented from SurveyQuestion.

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

Referenced by saveToDb(), and syncWithOriginal().

        {
                if ($this->title and $this->author and $this->questiontext)
                {
                        return 1;
                }
                else
                {
                        return 0;
                }
        }

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SurveyMetricQuestion::loadFromDb ( id  ) 

Loads a SurveyMetricQuestion object from the database.

Loads a SurveyMetricQuestion object from the database

Parameters:
integer $id The database id of the metric survey question public

Reimplemented from SurveyQuestion.

Definition at line 221 of file class.SurveyMetricQuestion.php.

References $data, SurveyQuestion::$id, ilRTE::_replaceMediaObjectImageSrc(), and SurveyQuestion::loadMaterialFromDb().

        {
                global $ilDB;
    $query = sprintf("SELECT survey_question.*, survey_question_metric.* FROM survey_question, survey_question_metric WHERE survey_question.question_id = %s AND survey_question.question_id = survey_question_metric.question_fi",
      $ilDB->quote($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 = $data->question_id;
        $this->title = $data->title;
        $this->description = $data->description;
        $this->obj_id = $data->obj_fi;
                                $this->obligatory = $data->obligatory;
        $this->author = $data->author;
                                $this->subtype = $data->subtype;
                                $this->original_id = $data->original_id;
        $this->owner = $data->owner_fi;
                                include_once("./Services/RTE/classes/class.ilRTE.php");
                                $this->questiontext = ilRTE::_replaceMediaObjectImageSrc($data->questiontext, 1);
        $this->complete = $data->complete;
      }
      // loads materials uris from database
      $this->loadMaterialFromDb($id);

      $query = sprintf("SELECT survey_variable.* FROM survey_variable WHERE survey_variable.question_fi = %s",
        $ilDB->quote($id)
      );
      $result = $ilDB->query($query);
      if (strcmp(strtolower(get_class($result)), db_result) == 0) 
                        {
        if ($data = $result->fetchRow(DB_FETCHMODE_OBJECT)) 
                                {
          $this->minimum = $data->value1;
                                        if (($data->value2 < 0) or (strcmp($data->value2, "") == 0))
                                        {
                                                $this->maximum = "";
                                        }
                                        else
                                        {
                                                $this->maximum = $data->value2;
                                        }
        }
      }
    }
                parent::loadFromDb($id);
  }

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SurveyMetricQuestion::outChart ( survey_id,
type = "" 
)

Creates an image visualising the results of the question.

Creates an image visualising the results of the question

Parameters:
integer $survey_id The database ID of the survey
string $type An additional parameter to allow to draw more than one chart per question. Must be interpreted by the question. Default is an empty string
Returns:
binary Image with the visualisation private

Reimplemented from SurveyQuestion.

Definition at line 1063 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$survey_id, ilObjSurvey::_getNrOfParticipants(), getCumulatedResults(), and SurveyQuestion::getTitle().

        {
                if (count($this->cumulated) == 0)
                {
                        include_once "./Modules/Survey/classes/class.ilObjSurvey.php";
                        $nr_of_users = ilObjSurvey::_getNrOfParticipants($survey_id);
                        $this->cumulated =& $this->getCumulatedResults($survey_id, $nr_of_users);
                }
                
                foreach ($this->cumulated["values"] as $key => $value)
                {
                        foreach ($value as $key2 => $value2)
                        {
                                $this->cumulated["variables"][$key][$key2] = utf8_decode($value2);
                        }
                }
                include_once "./Modules/SurveyQuestionPool/classes/class.SurveyChart.php";
                $b1 = new SurveyChart("bars",400,250,utf8_decode($this->getTitle()),utf8_decode($this->lng->txt("answers")),utf8_decode($this->lng->txt("users_answered")),$this->cumulated["values"]);
        }

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SurveyMetricQuestion::outPreconditionSelectValue ( &$  template  ) 

Creates a value selection for preconditions.

Creates a value selection for preconditions

Parameters:
object $template The template for the value selection (usually tpl.svy_svy_add_constraint.html) public

Definition at line 1018 of file class.SurveyMetricQuestion.php.

        {
                $template->setCurrentBlock("textfield");
                $template->setVariable("TEXTFIELD_VALUE", "");
                $template->parseCurrentBlock();
        }

SurveyMetricQuestion::saveToDb ( original_id = ""  ) 

Saves a SurveyMetricQuestion object to a database.

Saves a SurveyMetricQuestion object to a database

public

Reimplemented from SurveyQuestion.

Definition at line 299 of file class.SurveyMetricQuestion.php.

References ilRTE::_cleanupMediaObjectUsage(), ilRTE::_replaceMediaObjectImageSrc(), SurveyQuestion::getId(), isComplete(), and SurveyQuestion::saveMaterialsToDb().

  {
                global $ilDB;
                $complete = 0;
                if ($this->isComplete()) 
                {
                        $complete = 1;
                }
                if ($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->questiontext, "spl:html",
                        $this->getId());

    if ($this->id == -1) 
                {
      // Write new dataset
      $now = getdate();
      $created = sprintf("%04d%02d%02d%02d%02d%02d", $now['year'], $now['mon'], $now['mday'], $now['hours'], $now['minutes'], $now['seconds']);
      $query = sprintf("INSERT INTO survey_question (question_id, questiontype_fi, obj_fi, owner_fi, title, description, author, questiontext, obligatory, complete, created, original_id, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, NULL)",
                                $ilDB->quote($this->getQuestionTypeID()),
                                $ilDB->quote($this->obj_id),
                                $ilDB->quote($this->owner),
                                $ilDB->quote($this->title),
                                $ilDB->quote($this->description),
                                $ilDB->quote($this->author),
                                $ilDB->quote(ilRTE::_replaceMediaObjectImageSrc($this->questiontext, 0)),
                                $ilDB->quote(sprintf("%d", $this->obligatory)),
                                $ilDB->quote("$complete"),
                                $ilDB->quote($created),
                                $original_id
      );
      $result = $ilDB->query($query);
      if ($result == DB_OK) 
                        {
        $this->id = $ilDB->getLastInsertId();
                                $query = sprintf("INSERT INTO survey_question_metric (question_fi, subtype) VALUES (%s, %s)",
                                        $ilDB->quote($this->id . ""),
                                        $ilDB->quote($this->getSubType() . "")
                                );
                                $ilDB->query($query);
      }
    } 
                else 
                {
      // update existing dataset
      $query = sprintf("UPDATE survey_question SET title = %s, description = %s, author = %s, questiontext = %s, obligatory = %s, complete = %s WHERE question_id = %s",
                                $ilDB->quote($this->title),
                                $ilDB->quote($this->description),
                                $ilDB->quote($this->author),
                                $ilDB->quote(ilRTE::_replaceMediaObjectImageSrc($this->questiontext, 0)),
                                $ilDB->quote(sprintf("%d", $this->obligatory)),
                                $ilDB->quote("$complete"),
                                $ilDB->quote($this->id)
      );
      $result = $ilDB->query($query);
                        $query = sprintf("UPDATE survey_question_metric SET subtype = %s WHERE question_fi = %s",
                                $ilDB->quote($this->getSubType() . ""),
                                $ilDB->quote($this->id . "")
                        );
                        $result = $ilDB->query($query);
    }
    if ($result == DB_OK) 
                {
      // saving material uris in the database
      $this->saveMaterialsToDb();

      // save categories
                        
                        // delete existing category relations
      $query = sprintf("DELETE FROM survey_variable WHERE question_fi = %s",
        $ilDB->quote($this->id)
      );
      $result = $ilDB->query($query);
      // create new category relations
                        if (strcmp($this->minimum, "") == 0)
                        {
                                $min = "NULL";
                        }
                        else
                        {
                                $min = $ilDB->quote($this->minimum);
                        }
                        if (preg_match("/[\D]/", $this->maximum) or (strcmp($this->maximum, "&infin;") == 0))
                        {
                                $max = -1;
                        }
                        else
                        {
                                if (strcmp($this->maximum, "") == 0)
                                {
                                        $max = "NULL";
                                }
                                else
                                {
                                        $max = $ilDB->quote($this->maximum);
                                }
                        }
                        $query = sprintf("INSERT INTO survey_variable (variable_id, category_fi, question_fi, value1, value2, sequence, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, NULL)",
                                $ilDB->quote(0),
                                $ilDB->quote($this->id),
                                $min,
                                $max,
                                $ilDB->quote(0)
                        );
                        $answer_result = $ilDB->query($query);
    }
                parent::saveToDb($original_id);
  }

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SurveyMetricQuestion::saveUserInput ( post_data,
active_id 
)

Definition at line 730 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::getId().

        {
                global $ilDB;
                
                $entered_value = $post_data[$this->getId() . "_metric_question"];
                if (strlen($entered_value) == 0) return;
                // replace german notation with international notation
                $entered_value = str_replace(",", ".", $entered_value);
                
                if (strlen($entered_value) == 0)
                {
                        $entered_value = "NULL";
                }
                else
                {
                        $entered_value = $ilDB->quote($entered_value . "");
                }
                $query = sprintf("INSERT INTO survey_answer (answer_id, question_fi, active_fi, value, textanswer, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, NULL)",
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($active_id . ""),
                        $entered_value,
                        "NULL"
                );
                $result = $ilDB->query($query);
        }

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SurveyMetricQuestion::setExportDetailsXLS ( &$  workbook,
&$  format_title,
&$  format_bold,
&$  eval_data 
)

Creates an Excel worksheet for the detailed cumulated results of this question.

Creates an Excel worksheet for the detailed cumulated results of this question

Parameters:
object $workbook Reference to the parent excel workbook
object $format_title Excel title format
object $format_bold Excel bold format
array $eval_data Cumulated evaluation data public

Reimplemented from SurveyQuestion.

Definition at line 861 of file class.SurveyMetricQuestion.php.

References ilExcelUtils::_convert_text(), SurveyQuestion::getQuestiontext(), getSubtype(), and SurveyQuestion::getTitle().

        {
                include_once ("./classes/class.ilExcelUtils.php");
                $worksheet =& $workbook->addWorksheet();
                $worksheet->writeString(0, 0, ilExcelUtils::_convert_text($this->lng->txt("title")), $format_bold);
                $worksheet->writeString(0, 1, ilExcelUtils::_convert_text($this->getTitle()));
                $worksheet->writeString(1, 0, ilExcelUtils::_convert_text($this->lng->txt("question")), $format_bold);
                $worksheet->writeString(1, 1, ilExcelUtils::_convert_text($this->getQuestiontext()));
                $worksheet->writeString(2, 0, ilExcelUtils::_convert_text($this->lng->txt("question_type")), $format_bold);
                $worksheet->writeString(2, 1, ilExcelUtils::_convert_text($this->lng->txt($this->getQuestionType())));
                $worksheet->writeString(3, 0, ilExcelUtils::_convert_text($this->lng->txt("users_answered")), $format_bold);
                $worksheet->write(3, 1, $eval_data["USERS_ANSWERED"]);
                $worksheet->writeString(4, 0, ilExcelUtils::_convert_text($this->lng->txt("users_skipped")), $format_bold);
                $worksheet->write(4, 1, $eval_data["USERS_SKIPPED"]);
                $rowcounter = 5;

                $worksheet->write($rowcounter, 0, $this->lng->txt("subtype"), $format_bold);
                switch ($this->getSubtype())
                {
                        case SUBTYPE_NON_RATIO:
                                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($this->lng->txt("non_ratio")), $format_bold);
                                break;
                        case SUBTYPE_RATIO_NON_ABSOLUTE:
                                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($this->lng->txt("ratio_non_absolute")), $format_bold);
                                break;
                        case SUBTYPE_RATIO_ABSOLUTE:
                                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($this->lng->txt("ratio_absolute")), $format_bold);
                                break;
                }
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("mode")), $format_bold);
                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($eval_data["MODE"]));
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("mode_text")), $format_bold);
                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($eval_data["MODE"]));
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("mode_nr_of_selections")), $format_bold);
                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($eval_data["MODE_NR_OF_SELECTIONS"]));
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("median")), $format_bold);
                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($eval_data["MEDIAN"]));
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("arithmetic_mean")), $format_bold);
                $worksheet->write($rowcounter++, 1, ilExcelUtils::_convert_text($eval_data["ARITHMETIC_MEAN"]));
                $worksheet->write($rowcounter, 0, ilExcelUtils::_convert_text($this->lng->txt("values")), $format_bold);
                $worksheet->write($rowcounter, 1, ilExcelUtils::_convert_text($this->lng->txt("value")), $format_title);
                $worksheet->write($rowcounter, 2, ilExcelUtils::_convert_text($this->lng->txt("category_nr_selected")), $format_title);
                $worksheet->write($rowcounter++, 3, ilExcelUtils::_convert_text($this->lng->txt("percentage_of_selections")), $format_title);
                $values = "";
                if (is_array($eval_data["values"]))
                {
                        foreach ($eval_data["values"] as $key => $value)
                        {
                                $worksheet->write($rowcounter, 1, ilExcelUtils::_convert_text($value["value"]));
                                $worksheet->write($rowcounter, 2, ilExcelUtils::_convert_text($value["selected"]));
                                $worksheet->write($rowcounter++, 3, ilExcelUtils::_convert_text($value["percentage"]), $format_percent);
                        }
                }
        }

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SurveyMetricQuestion::setMaximum ( maximum = ""  ) 

Sets the maximum value.

Sets the maximum value

Parameters:
double $maximum The maximum value public
See also:
$maximum

Definition at line 135 of file class.SurveyMetricQuestion.php.

References $maximum.

Referenced by importResponses().

        {
    $this->maximum = $maximum;
  }

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SurveyMetricQuestion::setMinimum ( minimum = 0  ) 

Sets the minimum value.

Sets the minimum value

Parameters:
double $minimum The minimum value public
See also:
$minimum

Definition at line 121 of file class.SurveyMetricQuestion.php.

References $minimum.

Referenced by importResponses().

        {
    $this->minimum = $minimum;
  }

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SurveyMetricQuestion::setSubtype ( subtype = SUBTYPE_NON_RATIO  ) 

Sets the question subtype.

Sets the question subtype

Parameters:
integer $subtype The question subtype public
See also:
$subtype

Definition at line 107 of file class.SurveyMetricQuestion.php.

References $subtype.

        {
    $this->subtype = $subtype;
  }

SurveyMetricQuestion::SurveyMetricQuestion ( title = "",
description = "",
author = "",
questiontext = "",
owner = -1,
subtype = SUBTYPE_NON_RATIO 
)

SurveyMetricQuestion constructor.

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

Parameters:
string $title A title string to describe the question
string $description A description string to describe the question
string $author A string containing the name of the questions author
integer $owner A numerical ID to identify the owner/creator public

Definition at line 82 of file class.SurveyMetricQuestion.php.

References SurveyQuestion::$author, SurveyQuestion::$description, SurveyQuestion::$owner, SurveyQuestion::$questiontext, $subtype, SurveyQuestion::$title, and SurveyQuestion::SurveyQuestion().

  {
                $this->SurveyQuestion($title, $description, $author, $questiontext, $owner);
                $this->subtype = $subtype;
                $this->minimum = "";
                $this->maximum = "";
        }

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SurveyMetricQuestion::syncWithOriginal (  ) 

Reimplemented from SurveyQuestion.

Definition at line 538 of file class.SurveyMetricQuestion.php.

References isComplete().

        {
                global $ilDB;
                if ($this->original_id)
                {
                        $complete = 0;
                        if ($this->isComplete()) 
                        {
                                $complete = 1;
                        }
                        $query = sprintf("UPDATE survey_question SET title = %s, description = %s, author = %s, questiontext = %s, obligatory = %s, complete = %s WHERE question_id = %s",
                                $ilDB->quote($this->title . ""),
                                $ilDB->quote($this->description . ""),
                                $ilDB->quote($this->author . ""),
                                $ilDB->quote($this->questiontext . ""),
                                $ilDB->quote(sprintf("%d", $this->obligatory) . ""),
                                $ilDB->quote($complete . ""),
                                $ilDB->quote($this->original_id . "")
                        );
                        $result = $ilDB->query($query);
                        $query = sprintf("UPDATE survey_question_metric SET subtype = %s WHERE question_fi = %s",
                                $ilDB->quote($this->getSubType() . ""),
                                $ilDB->quote($this->original_id . "")
                        );
                        $result = $ilDB->query($query);
                        if ($result == DB_OK) 
                        {
                                // save categories
                                
                                // delete existing category relations
                                $query = sprintf("DELETE FROM survey_variable WHERE question_fi = %s",
                                        $ilDB->quote($this->original_id)
                                );
                                $result = $ilDB->query($query);
                                // create new category relations
                                if (strcmp($this->minimum, "") == 0)
                                {
                                        $min = "NULL";
                                }
                                else
                                {
                                        $min = $ilDB->quote($this->minimum . "");
                                }
                                if (preg_match("/[\D]/", $this->maximum) or (strcmp($this->maximum, "&infin;") == 0))
                                {
                                        $max = -1;
                                }
                                else
                                {
                                        if (strcmp($this->maximum, "") == 0)
                                        {
                                                $max = "NULL";
                                        }
                                        else
                                        {
                                                $max = $ilDB->quote($this->maximum . "");
                                        }
                                }
                                $query = sprintf("INSERT INTO survey_variable (variable_id, category_fi, question_fi, value1, value2, sequence, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, NULL)",
                                        $ilDB->quote("0"),
                                        $ilDB->quote($this->original_id . ""),
                                        $min,
                                        $max,
                                        $ilDB->quote("0")
                                );
                                $answer_result = $ilDB->query($query);
                        }
                }
                parent::syncWithOriginal();
        }

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SurveyMetricQuestion::toXML ( a_include_header = TRUE,
obligatory_state = "" 
)

Returns an xml representation of the question.

Returns an xml representation of the question

Returns:
string The xml representation of the question public

Definition at line 424 of file class.SurveyMetricQuestion.php.

References insertXML().

        {
                include_once("./classes/class.ilXmlWriter.php");
                $a_xml_writer = new ilXmlWriter;
                $a_xml_writer->xmlHeader();
                $this->insertXML($a_xml_writer, $a_include_header, $obligatory_state);
                $xml = $a_xml_writer->xmlDumpMem(FALSE);
                if (!$a_include_header)
                {
                        $pos = strpos($xml, "?>");
                        $xml = substr($xml, $pos + 2);
                }
                return $xml;
        }

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SurveyMetricQuestion::usableForPrecondition (  ) 

Returns if the question is usable for preconditions.

Returns if the question is usable for preconditions

Returns:
boolean TRUE if the question is usable for a precondition, FALSE otherwise public

Reimplemented from SurveyQuestion.

Definition at line 992 of file class.SurveyMetricQuestion.php.

        {
                return TRUE;
        }


Field Documentation

SurveyMetricQuestion::$maximum

Definition at line 69 of file class.SurveyMetricQuestion.php.

Referenced by setMaximum().

SurveyMetricQuestion::$minimum

Definition at line 60 of file class.SurveyMetricQuestion.php.

Referenced by setMinimum().

SurveyMetricQuestion::$subtype

Definition at line 51 of file class.SurveyMetricQuestion.php.

Referenced by setSubtype(), and SurveyMetricQuestion().


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