ilSurveyConstraintsGUI Class Reference

Class ilSurveyConstraintsGUI. More...

Collaboration diagram for ilSurveyConstraintsGUI:

Public Member Functions
	__construct (ilObjSurveyGUI $a_parent_gui)
	executeCommand ()
	constraintsObject ()
	Administration page for survey constraints.
	constraintsAddObject ()
	Add a precondition for a survey question or question block.
	constraintStep1Object ()
	Handles the first step of the precondition add action.
	constraintStep2Object ()
	Handles the second step of the precondition add action.
	constraintStep3Object ()
	Handles the third step of the precondition add action.
	constraintForm ($step, $postvalues, &$survey_questions, $questions=FALSE)
	confirmDeleteConstraintsObject ()
	Delete constraint confirmation.
	deleteConstraintsObject ()
	Delete constraints of a survey.
	createConstraintsObject ()
	editPreconditionObject ()

Protected Member Functions
	validateConstraintForEdit ($a_id)
	Validate if given constraint id is part of current survey and there are sufficient permissions to edit+.

Detailed Description

Class ilSurveyConstraintsGUI.

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

Version

Id:

class.ilObjSurveyGUI.php 43670 2013-07-26 08:41:31Z jluetzen

ilSurveyConstraintsGUI:

Definition at line 14 of file class.ilSurveyConstraintsGUI.php.

Constructor & Destructor Documentation

ilSurveyConstraintsGUI::__construct

(

ilObjSurveyGUI

$a_parent_gui

)

Definition at line 16 of file class.ilSurveyConstraintsGUI.php.

References $ilCtrl, $lng, and $tpl.

        {               
                global $ilCtrl, $lng, $tpl;
                
                $this->parent_gui = $a_parent_gui;
                $this->object = $this->parent_gui->object;
                
                $this->ctrl = $ilCtrl;
                $this->lng = $lng;
                $this->tpl = $tpl;
        }

Member Function Documentation

ilSurveyConstraintsGUI::confirmDeleteConstraintsObject

(

)

Delete constraint confirmation.

Definition at line 325 of file class.ilSurveyConstraintsGUI.php.

References $_REQUEST, SurveyQuestion\_getQuestionType(), SurveyQuestion\_includeClass(), and validateConstraintForEdit().

        {
                $id = (int)$_REQUEST["precondition"];
                if(!$this->validateConstraintForEdit($id))      
                {       
                        $this->ctrl->redirect($this, "constraints");
                }
                
                $constraint = $this->object->getPrecondition($id);
                $questions = $this->object->getSurveyQuestions();
                $question = $questions[$constraint["question_fi"]];
                $relation = $questions[$constraint["ref_question_fi"]]; 
                $relation = $relation["title"];
                
                // see ilSurveyConstraintsTableGUI
                include_once "./Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php";
                $question_type = SurveyQuestion::_getQuestionType($constraint["question_fi"]);
                SurveyQuestion::_includeClass($question_type);
                $question_obj = new $question_type();
                $question_obj->loadFromDb($constraint["question_fi"]);
                $valueoutput = $question_obj->getPreconditionValueOutput($constraint["value"]);
                
                $title = $question["title"]." ".$constraint["shortname"]." ".$valueoutput;
                
                $this->ctrl->saveParameter($this, "precondition");
                
                include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
                $cgui = new ilConfirmationGUI();
                $cgui->setHeaderText(sprintf($this->lng->txt("survey_sure_delete_constraint"), $title, $relation));

                $cgui->setFormAction($this->ctrl->getFormAction($this, "deleteConstraints"));
                $cgui->setCancel($this->lng->txt("cancel"), "constraints");
                $cgui->setConfirm($this->lng->txt("confirm"), "deleteConstraints");
                
                $this->tpl->setContent($cgui->getHTML());
        }

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ilSurveyConstraintsGUI::constraintForm	(		$step,
			$postvalues,
		&	$survey_questions,
			$questions = FALSE
	)

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

References $_GET, $_SESSION, $options, SurveyQuestion\_getQuestionTypeName(), SurveyQuestion\_includeClass(), ilRadioGroupInputGUI\addOption(), and ilSelectInputGUI\setOptions().

Referenced by constraintStep1Object(), constraintStep2Object(), and constraintStep3Object().

        {
                if (strlen($_GET["start"])) $this->ctrl->setParameter($this, "start", $_GET["start"]);
                $this->ctrl->saveParameter($this, "precondition");
                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                $form->setFormAction($this->ctrl->getFormAction($this));
                $form->setTableWidth("100%");
                $form->setId("constraintsForm");
                                
                // #9366
                $title = array();               
                $title_ids = $_SESSION["includeElements"];
                if(!$title_ids)
                {
                        $title_ids = array($_GET["start"]);
                }
                foreach($title_ids as $title_id)
                {
                        // question block
                        if ($survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["questionblock_id"] > 0)
                        {
                                $title[] = $this->lng->txt("questionblock") . ": " . $survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["questionblock_title"];
                        }
                        // question
                        else
                        {
                                $title[] = $this->lng->txt($survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["type_tag"]) . ": " . 
                                        $survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["title"];
                        }
                }
                $header = new ilFormSectionHeaderGUI();
                $header->setTitle(implode("<br/>", $title));
                $form->addItem($header);
                
                $fulfilled = new ilRadioGroupInputGUI($this->lng->txt("constraint_fulfilled"), "c");
                $fulfilled->addOption(new ilRadioOption($this->lng->txt("conjunction_and"), '0', ''));
                $fulfilled->addOption(new ilRadioOption($this->lng->txt("conjunction_or"), '1', ''));
                $fulfilled->setValue((strlen($postvalues['c'])) ? $postvalues['c'] : 0);
                $form->addItem($fulfilled);

                $step1 = new ilSelectInputGUI($this->lng->txt("step") . " 1: " . $this->lng->txt("select_prior_question"), "q");
                $options = array();
                if (is_array($questions))
                {
                        foreach ($questions as $question)
                        {
                                $options[$question["question_id"]] = $question["title"] . " (" . SurveyQuestion::_getQuestionTypeName($question["type_tag"]) . ")";
                        }
                }
                $step1->setOptions($options);
                $step1->setValue($postvalues["q"]);
                $form->addItem($step1);

                if ($step > 1)
                {
                        $relations = $this->object->getAllRelations();
                        $step2 = new ilSelectInputGUI($this->lng->txt("step") . " 2: " . $this->lng->txt("select_relation"), "r");
                        $options = array();
                        foreach ($relations as $rel_id => $relation)
                        {
                                if (in_array($relation["short"], $survey_questions[$postvalues["q"]]["availableRelations"]))
                                {
                                        $options[$rel_id] = $relation['short'];
                                }
                        }
                        $step2->setOptions($options);
                        $step2->setValue($postvalues["r"]);
                        $form->addItem($step2);
                }
                
                if ($step > 2)
                {
                        $variables =& $this->object->getVariables($postvalues["q"]);
                        $question_type = $survey_questions[$postvalues["q"]]["type_tag"];
                        include_once "./Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php";
                        SurveyQuestion::_includeClass($question_type);
                        $question = new $question_type();
                        $question->loadFromDb($postvalues["q"]);

                        $step3 = $question->getPreconditionSelectValue($postvalues["v"], $this->lng->txt("step") . " 3: " . $this->lng->txt("select_value"), "v");
                        $form->addItem($step3);
                }

                switch ($step)
                {
                        case 1:
                                $cmd_continue = "constraintStep2";
                                $cmd_back = "constraints";
                                break;
                        case 2:
                                $cmd_continue = "constraintStep3";
                                $cmd_back = "constraintStep1";
                                break;
                        case 3:
                                $cmd_continue = "constraintsAdd";
                                $cmd_back = "constraintStep2";
                                break;
                }
                $form->addCommandButton($cmd_back, $this->lng->txt("back"));
                $form->addCommandButton($cmd_continue, $this->lng->txt("continue"));

                $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
        }

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ilSurveyConstraintsGUI::constraintsAddObject

(

)

Add a precondition for a survey question or question block.

Definition at line 84 of file class.ilSurveyConstraintsGUI.php.

References $_GET, $_POST, $_SESSION, constraintStep3Object(), and ilUtil\sendFailure().

        {                               
                if (strlen($_POST["v"]) == 0)
                {
                        ilUtil::sendFailure($this->lng->txt("msg_enter_value_for_valid_constraint"));
                        return $this->constraintStep3Object();
                }
                $survey_questions =& $this->object->getSurveyQuestions();
                $structure =& $_SESSION["constraintstructure"];
                $include_elements = $_SESSION["includeElements"];
                foreach ($include_elements as $elementCounter)
                {
                        if (is_array($structure[$elementCounter]))
                        {
                                if (strlen($_GET["precondition"]))
                                {
                                        $this->object->updateConstraint($_GET['precondition'], $_POST["q"], $_POST["r"], $_POST["v"], $_POST['c']);
                                }
                                else
                                {
                                        $constraint_id = $this->object->addConstraint($_POST["q"], $_POST["r"], $_POST["v"], $_POST['c']);
                                        foreach ($structure[$elementCounter] as $key => $question_id)
                                        {
                                                $this->object->addConstraintToQuestion($question_id, $constraint_id);
                                        }
                                }
                                if (count($structure[$elementCounter]) > 1)
                                {
                                        $this->object->updateConjunctionForQuestions($structure[$elementCounter], $_POST['c']);
                                }
                        }
                }
                unset($_SESSION["includeElements"]);
                unset($_SESSION["constraintstructure"]);
                $this->ctrl->redirect($this, "constraints");
        }

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ilSurveyConstraintsGUI::constraintsObject

(

)

Administration page for survey constraints.

Definition at line 41 of file class.ilSurveyConstraintsGUI.php.

References $_GET, $_SESSION, constraintStep1Object(), and ilUtil\sendInfo().

        {                       
                $step = 0;
                if (array_key_exists("step", $_GET))
                {
                        $step = (int)$_GET["step"];
                }
                switch ($step)
                {
                        case 1:
                                $this->constraintStep1Object();
                                return;
                                break;
                        case 2:
                                return;
                                break;
                        case 3:
                                return;
                                break;
                }
                
                $hasDatasets = $this->object->_hasDatasets($this->object->getSurveyId());
                
                include_once "Modules/Survey/classes/tables/class.SurveyConstraintsTableGUI.php";
                $tbl = new SurveyConstraintsTableGUI($this, "constraints", $this->object, $hasDatasets);
                $this->tpl->setContent($tbl->getHTML());
                
                if ($hasDatasets)
                {                                               
                        // ilUtil::sendInfo($this->lng->txt("survey_has_datasets_warning"));
                        $link = $this->ctrl->getLinkTargetByClass("ilSurveyParticipantsGUI", "maintenance");
                        $link = "<a href=\"".$link."\">".$this->lng->txt("survey_has_datasets_warning_page_view_link")."</a>";
                        ilUtil::sendInfo($this->lng->txt("survey_has_datasets_warning_page_view")." ".$link);
                }
                else
                {
                        $_SESSION["constraintstructure"] = $tbl->getStructure();                
                }
        }

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ilSurveyConstraintsGUI::constraintStep1Object

(

)

Handles the first step of the precondition add action.

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

References $_GET, $_POST, $_SESSION, constraintForm(), and ilUtil\sendInfo().

Referenced by constraintsObject(), and createConstraintsObject().

        {                               
                $survey_questions =& $this->object->getSurveyQuestions();
                $structure =& $_SESSION["constraintstructure"];
                $start = $_GET["start"];
                $option_questions = array();
                for ($i = 1; $i < $start; $i++)
                {
                        if (is_array($structure[$i]))
                        {
                                foreach ($structure[$i] as $key => $question_id)
                                {
                                        if ($survey_questions[$question_id]["usableForPrecondition"])
                                        {
                                                array_push($option_questions, array("question_id" => $survey_questions[$question_id]["question_id"], "title" => $survey_questions[$question_id]["title"], "type_tag" => $survey_questions[$question_id]["type_tag"]));
                                        }
                                }
                        }
                }
                if (count($option_questions) == 0)
                {
                        unset($_SESSION["includeElements"]);
                        unset($_SESSION["constraintstructure"]);
                        ilUtil::sendInfo($this->lng->txt("constraints_no_nonessay_available"), true);
                        $this->ctrl->redirect($this, "constraints");
                }
                $this->constraintForm(1, $_POST, $survey_questions, $option_questions);
        }

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ilSurveyConstraintsGUI::constraintStep2Object

(

)

Handles the second step of the precondition add action.

Definition at line 156 of file class.ilSurveyConstraintsGUI.php.

References $_POST, and constraintForm().

        {
                $survey_questions =& $this->object->getSurveyQuestions();
                $option_questions = array();
                array_push($option_questions, array("question_id" => $_POST["q"], "title" => $survey_questions[$_POST["q"]]["title"], "type_tag" => $survey_questions[$_POST["q"]]["type_tag"]));
                $this->constraintForm(2, $_POST, $survey_questions, $option_questions);
        }

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ilSurveyConstraintsGUI::constraintStep3Object

(

)

Handles the third step of the precondition add action.

Definition at line 167 of file class.ilSurveyConstraintsGUI.php.

References $_GET, $_POST, constraintForm(), and validateConstraintForEdit().

Referenced by constraintsAddObject().

        {
                $survey_questions =& $this->object->getSurveyQuestions();
                $option_questions = array();
                if (strlen($_GET["precondition"]))
                {       
                        if(!$this->validateConstraintForEdit($_GET["precondition"]))
                        {
                                $this->ctrl->redirect($this, "constraints");
                        }
                        
                        $pc = $this->object->getPrecondition($_GET["precondition"]);
                        $postvalues = array(
                                "c" => $pc["conjunction"],
                                "q" => $pc["question_fi"],
                                "r" => $pc["relation_id"],
                                "v" => $pc["value"]
                        );
                        array_push($option_questions, array("question_id" => $pc["question_fi"], "title" => $survey_questions[$pc["question_fi"]]["title"], "type_tag" => $survey_questions[$pc["question_fi"]]["type_tag"]));
                        $this->constraintForm(3, $postvalues, $survey_questions, $option_questions);
                }
                else
                {
                        array_push($option_questions, array("question_id" => $_POST["q"], "title" => $survey_questions[$_POST["q"]]["title"], "type_tag" => $survey_questions[$_POST["q"]]["type_tag"]));
                        $this->constraintForm(3, $_POST, $survey_questions, $option_questions);
                }
        }

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ilSurveyConstraintsGUI::createConstraintsObject

(

)

Definition at line 377 of file class.ilSurveyConstraintsGUI.php.

References $_GET, $_POST, $_SESSION, constraintStep1Object(), and ilUtil\sendInfo().

        {
                $include_elements = $_POST["includeElements"];
                if ((!is_array($include_elements)) || (count($include_elements) == 0))
                {
                        ilUtil::sendInfo($this->lng->txt("constraints_no_questions_or_questionblocks_selected"), true);
                        $this->ctrl->redirect($this, "constraints");
                }
                else if (count($include_elements) >= 1)
                {
                        $_SESSION["includeElements"] = $include_elements;
                        sort($include_elements, SORT_NUMERIC);
                        $_GET["start"] = $include_elements[0];
                        $this->constraintStep1Object();
                }
        }

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ilSurveyConstraintsGUI::deleteConstraintsObject

(

)

Delete constraints of a survey.

Definition at line 365 of file class.ilSurveyConstraintsGUI.php.

References $_REQUEST, ilUtil\sendSuccess(), and validateConstraintForEdit().

        {
                $id = (int)$_REQUEST["precondition"];
                if($this->validateConstraintForEdit($id))       
                {               
                        ilUtil::sendSuccess($this->lng->txt("survey_constraint_deleted"), true);
                        $this->object->deleteConstraint($id);                   
                }

                $this->ctrl->redirect($this, "constraints");
        }

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ilSurveyConstraintsGUI::editPreconditionObject

(

)

Definition at line 394 of file class.ilSurveyConstraintsGUI.php.

References $_GET, $_SESSION, and validateConstraintForEdit().

        {
                if(!$this->validateConstraintForEdit($_GET["precondition"]))    
                {
                        $this->ctrl->redirect($this, "constraints");
                }
                
                $_SESSION["includeElements"] = array($_GET["start"]);
                $this->ctrl->setParameter($this, "precondition", $_GET["precondition"]);
                $this->ctrl->setParameter($this, "start", $_GET["start"]);
                $this->ctrl->redirect($this, "constraintStep3");
        }

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ilSurveyConstraintsGUI::executeCommand

(

)

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

References $cmd, and $ilCtrl.

        {
                global $ilCtrl;
                
                $cmd = $ilCtrl->getCmd("constraints");
                $cmd .= "Object";
                
                $this->$cmd();          
        }

ilSurveyConstraintsGUI::validateConstraintForEdit (   $a_id )

protected

Validate if given constraint id is part of current survey and there are sufficient permissions to edit+.

Parameters

int

$a_id

Returns

bool

Definition at line 306 of file class.ilSurveyConstraintsGUI.php.

Referenced by confirmDeleteConstraintsObject(), constraintStep3Object(), deleteConstraintsObject(), and editPreconditionObject().

        {
                global $ilAccess;
                
                if($this->object->_hasDatasets($this->object->getSurveyId()))
                {
                        return false;
                }
                if(!$ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        return false;
                }
                
                return true;
        }       

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

• Modules/Survey/classes/class.ilSurveyConstraintsGUI.php