ilSurveyConstraintsGUI Class Reference

Class ilSurveyConstraintsGUI. More...

Collaboration diagram for ilSurveyConstraintsGUI:

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

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

@ilCtrl_Calls ilSurveyConstraintsGUI:

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

Constructor & Destructor Documentation

__construct()

ilSurveyConstraintsGUI::__construct

(

ilObjSurveyGUI

$a_parent_gui

)

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

        {               
                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;
        }

References $ilCtrl, $lng, and $tpl.

Member Function Documentation

confirmDeleteConstraintsObject()

ilSurveyConstraintsGUI::confirmDeleteConstraintsObject

(

)

Delete constraint confirmation.

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

        {
                $id = (int)$_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());
        }

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

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constraintForm()

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

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

        {
                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());
        }

References $_GET, $_SESSION, $header, $options, SurveyQuestion\_getQuestionTypeName(), and SurveyQuestion\_includeClass().

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

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constraintsAddObject()

ilSurveyConstraintsGUI::constraintsAddObject

(

)

Add a precondition for a survey question or question block.

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

        {                               
                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");
        }

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

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constraintsObject()

ilSurveyConstraintsGUI::constraintsObject

(

)

Administration page for survey constraints.

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

        {                       
                $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();                
                }
        }

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

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constraintStep1Object()

ilSurveyConstraintsGUI::constraintStep1Object

(

)

Handles the first step of the precondition add action.

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

        {                               
                $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);
        }

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

Referenced by constraintsObject(), and createConstraintsObject().

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constraintStep2Object()

ilSurveyConstraintsGUI::constraintStep2Object

(

)

Handles the second step of the precondition add action.

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

        {
                $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);
        }

References $_POST, and constraintForm().

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constraintStep3Object()

ilSurveyConstraintsGUI::constraintStep3Object

(

)

Handles the third step of the precondition add action.

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

        {
                $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);
                }
        }

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

Referenced by constraintsAddObject().

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createConstraintsObject()

ilSurveyConstraintsGUI::createConstraintsObject

(

)

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

        {
                $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();
                }
        }

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

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deleteConstraintsObject()

ilSurveyConstraintsGUI::deleteConstraintsObject

(

)

Delete constraints of a survey.

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

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

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

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editPreconditionObject()

ilSurveyConstraintsGUI::editPreconditionObject

(

)

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

        {
                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");
        }

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

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executeCommand()

ilSurveyConstraintsGUI::executeCommand

(

)

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

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

References $cmd, and $ilCtrl.

validateConstraintForEdit()

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.

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

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

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---

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

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