ILIAS  Release_5_0_x_branch Revision 61816
 All Data Structures Namespaces Files Functions Variables Groups Pages
class.ilSurveyConstraintsGUI.php
Go to the documentation of this file.
1 <?php
2 /* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
3 
14 class ilSurveyConstraintsGUI
15 {
16  public function __construct(ilObjSurveyGUI $a_parent_gui)
17  {
18  global $ilCtrl, $lng, $tpl;
19 
20  $this->parent_gui = $a_parent_gui;
21  $this->object = $this->parent_gui->object;
22 
23  $this->ctrl = $ilCtrl;
24  $this->lng = $lng;
25  $this->tpl = $tpl;
26  }
27 
28  public function executeCommand()
29  {
30  global $ilCtrl;
31 
32  $cmd = $ilCtrl->getCmd("constraints");
33  $cmd .= "Object";
34 
35  $this->$cmd();
36  }
37 
41  public function constraintsObject()
42  {
43  $step = 0;
44  if (array_key_exists("step", $_GET))
45  {
46  $step = (int)$_GET["step"];
47  }
48  switch ($step)
49  {
50  case 1:
51  $this->constraintStep1Object();
52  return;
53  break;
54  case 2:
55  return;
56  break;
57  case 3:
58  return;
59  break;
60  }
61 
62  $hasDatasets = $this->object->_hasDatasets($this->object->getSurveyId());
63 
64  include_once "Modules/Survey/classes/tables/class.SurveyConstraintsTableGUI.php";
65  $tbl = new SurveyConstraintsTableGUI($this, "constraints", $this->object, $hasDatasets);
66  $this->tpl->setContent($tbl->getHTML());
67 
68  if ($hasDatasets)
69  {
70  // ilUtil::sendInfo($this->lng->txt("survey_has_datasets_warning"));
71  $link = $this->ctrl->getLinkTargetByClass("ilSurveyParticipantsGUI", "maintenance");
72  $link = "<a href=\"".$link."\">".$this->lng->txt("survey_has_datasets_warning_page_view_link")."</a>";
73  ilUtil::sendInfo($this->lng->txt("survey_has_datasets_warning_page_view")." ".$link);
74  }
75  else
76  {
77  $_SESSION["constraintstructure"] = $tbl->getStructure();
78  }
79  }
80 
84  public function constraintsAddObject()
85  {
86  if (strlen($_POST["v"]) == 0)
87  {
88  ilUtil::sendFailure($this->lng->txt("msg_enter_value_for_valid_constraint"));
89  return $this->constraintStep3Object();
90  }
91  $survey_questions =& $this->object->getSurveyQuestions();
92  $structure =& $_SESSION["constraintstructure"];
93  $include_elements = $_SESSION["includeElements"];
94  foreach ($include_elements as $elementCounter)
95  {
96  if (is_array($structure[$elementCounter]))
97  {
98  if (strlen($_GET["precondition"]))
99  {
100  $this->object->updateConstraint($_GET['precondition'], $_POST["q"], $_POST["r"], $_POST["v"], $_POST['c']);
101  }
102  else
103  {
104  $constraint_id = $this->object->addConstraint($_POST["q"], $_POST["r"], $_POST["v"], $_POST['c']);
105  foreach ($structure[$elementCounter] as $key => $question_id)
106  {
107  $this->object->addConstraintToQuestion($question_id, $constraint_id);
108  }
109  }
110  if (count($structure[$elementCounter]) > 1)
111  {
112  $this->object->updateConjunctionForQuestions($structure[$elementCounter], $_POST['c']);
113  }
114  }
115  }
116  unset($_SESSION["includeElements"]);
117  unset($_SESSION["constraintstructure"]);
118  $this->ctrl->redirect($this, "constraints");
119  }
120 
124  public function constraintStep1Object()
125  {
126  $survey_questions =& $this->object->getSurveyQuestions();
127  $structure =& $_SESSION["constraintstructure"];
128  $start = $_GET["start"];
129  $option_questions = array();
130  for ($i = 1; $i < $start; $i++)
131  {
132  if (is_array($structure[$i]))
133  {
134  foreach ($structure[$i] as $key => $question_id)
135  {
136  if ($survey_questions[$question_id]["usableForPrecondition"])
137  {
138  array_push($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"]));
139  }
140  }
141  }
142  }
143  if (count($option_questions) == 0)
144  {
145  unset($_SESSION["includeElements"]);
146  unset($_SESSION["constraintstructure"]);
147  ilUtil::sendInfo($this->lng->txt("constraints_no_nonessay_available"), true);
148  $this->ctrl->redirect($this, "constraints");
149  }
150  $this->constraintForm(1, $_POST, $survey_questions, $option_questions);
151  }
152 
156  public function constraintStep2Object()
157  {
158  $survey_questions =& $this->object->getSurveyQuestions();
159  $option_questions = array();
160  array_push($option_questions, array("question_id" => $_POST["q"], "title" => $survey_questions[$_POST["q"]]["title"], "type_tag" => $survey_questions[$_POST["q"]]["type_tag"]));
161  $this->constraintForm(2, $_POST, $survey_questions, $option_questions);
162  }
163 
167  public function constraintStep3Object()
168  {
169  $survey_questions =& $this->object->getSurveyQuestions();
170  $option_questions = array();
171  if (strlen($_GET["precondition"]))
172  {
173  if(!$this->validateConstraintForEdit($_GET["precondition"]))
174  {
175  $this->ctrl->redirect($this, "constraints");
176  }
177 
178  $pc = $this->object->getPrecondition($_GET["precondition"]);
179  $postvalues = array(
180  "c" => $pc["conjunction"],
181  "q" => $pc["question_fi"],
182  "r" => $pc["relation_id"],
183  "v" => $pc["value"]
184  );
185  array_push($option_questions, array("question_id" => $pc["question_fi"], "title" => $survey_questions[$pc["question_fi"]]["title"], "type_tag" => $survey_questions[$pc["question_fi"]]["type_tag"]));
186  $this->constraintForm(3, $postvalues, $survey_questions, $option_questions);
187  }
188  else
189  {
190  array_push($option_questions, array("question_id" => $_POST["q"], "title" => $survey_questions[$_POST["q"]]["title"], "type_tag" => $survey_questions[$_POST["q"]]["type_tag"]));
191  $this->constraintForm(3, $_POST, $survey_questions, $option_questions);
192  }
193  }
194 
195  public function constraintForm($step, $postvalues, &$survey_questions, $questions = FALSE)
196  {
197  if (strlen($_GET["start"])) $this->ctrl->setParameter($this, "start", $_GET["start"]);
198  $this->ctrl->saveParameter($this, "precondition");
199  include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
200  $form = new ilPropertyFormGUI();
201  $form->setFormAction($this->ctrl->getFormAction($this));
202  $form->setTableWidth("100%");
203  $form->setId("constraintsForm");
204 
205  // #9366
206  $title = array();
207  $title_ids = $_SESSION["includeElements"];
208  if(!$title_ids)
209  {
210  $title_ids = array($_GET["start"]);
211  }
212  foreach($title_ids as $title_id)
213  {
214  // question block
215  if ($survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["questionblock_id"] > 0)
216  {
217  $title[] = $this->lng->txt("questionblock") . ": " . $survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["questionblock_title"];
218  }
219  // question
220  else
221  {
222  $title[] = $this->lng->txt($survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["type_tag"]) . ": " .
223  $survey_questions[$_SESSION["constraintstructure"][$title_id][0]]["title"];
224  }
225  }
226  $header = new ilFormSectionHeaderGUI();
227  $header->setTitle(implode("<br/>", $title));
228  $form->addItem($header);
229 
230  $fulfilled = new ilRadioGroupInputGUI($this->lng->txt("constraint_fulfilled"), "c");
231  $fulfilled->addOption(new ilRadioOption($this->lng->txt("conjunction_and"), '0', ''));
232  $fulfilled->addOption(new ilRadioOption($this->lng->txt("conjunction_or"), '1', ''));
233  $fulfilled->setValue((strlen($postvalues['c'])) ? $postvalues['c'] : 0);
234  $form->addItem($fulfilled);
235 
236  $step1 = new ilSelectInputGUI($this->lng->txt("step") . " 1: " . $this->lng->txt("select_prior_question"), "q");
237  $options = array();
238  if (is_array($questions))
239  {
240  foreach ($questions as $question)
241  {
242  $options[$question["question_id"]] = $question["title"] . " (" . SurveyQuestion::_getQuestionTypeName($question["type_tag"]) . ")";
243  }
244  }
245  $step1->setOptions($options);
246  $step1->setValue($postvalues["q"]);
247  $form->addItem($step1);
248 
249  if ($step > 1)
250  {
251  $relations = $this->object->getAllRelations();
252  $step2 = new ilSelectInputGUI($this->lng->txt("step") . " 2: " . $this->lng->txt("select_relation"), "r");
253  $options = array();
254  foreach ($relations as $rel_id => $relation)
255  {
256  if (in_array($relation["short"], $survey_questions[$postvalues["q"]]["availableRelations"]))
257  {
258  $options[$rel_id] = $relation['short'];
259  }
260  }
261  $step2->setOptions($options);
262  $step2->setValue($postvalues["r"]);
263  $form->addItem($step2);
264  }
265 
266  if ($step > 2)
267  {
268  $variables =& $this->object->getVariables($postvalues["q"]);
269  $question_type = $survey_questions[$postvalues["q"]]["type_tag"];
270  include_once "./Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php";
271  SurveyQuestion::_includeClass($question_type);
272  $question = new $question_type();
273  $question->loadFromDb($postvalues["q"]);
274 
275  $step3 = $question->getPreconditionSelectValue($postvalues["v"], $this->lng->txt("step") . " 3: " . $this->lng->txt("select_value"), "v");
276  $form->addItem($step3);
277  }
278 
279  switch ($step)
280  {
281  case 1:
282  $cmd_continue = "constraintStep2";
283  $cmd_back = "constraints";
284  break;
285  case 2:
286  $cmd_continue = "constraintStep3";
287  $cmd_back = "constraintStep1";
288  break;
289  case 3:
290  $cmd_continue = "constraintsAdd";
291  $cmd_back = "constraintStep2";
292  break;
293  }
294  $form->addCommandButton($cmd_back, $this->lng->txt("back"));
295  $form->addCommandButton($cmd_continue, $this->lng->txt("continue"));
296 
297  $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
298  }
299 
306  protected function validateConstraintForEdit($a_id)
307  {
308  global $ilAccess;
309 
310  if($this->object->_hasDatasets($this->object->getSurveyId()))
311  {
312  return false;
313  }
314  if(!$ilAccess->checkAccess("write", "", $this->object->getRefId()))
315  {
316  return false;
317  }
318 
319  return true;
320  }
321 
325  public function confirmDeleteConstraintsObject()
326  {
327  $id = (int)$_REQUEST["precondition"];
328  if(!$this->validateConstraintForEdit($id))
329  {
330  $this->ctrl->redirect($this, "constraints");
331  }
332 
333  $constraint = $this->object->getPrecondition($id);
334  $questions = $this->object->getSurveyQuestions();
335  $question = $questions[$constraint["question_fi"]];
336  $relation = $questions[$constraint["ref_question_fi"]];
337  $relation = $relation["title"];
338 
339  // see ilSurveyConstraintsTableGUI
340  include_once "./Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php";
341  $question_type = SurveyQuestion::_getQuestionType($constraint["question_fi"]);
342  SurveyQuestion::_includeClass($question_type);
343  $question_obj = new $question_type();
344  $question_obj->loadFromDb($constraint["question_fi"]);
345  $valueoutput = $question_obj->getPreconditionValueOutput($constraint["value"]);
346 
347  $title = $question["title"]." ".$constraint["shortname"]." ".$valueoutput;
348 
349  $this->ctrl->saveParameter($this, "precondition");
350 
351  include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
352  $cgui = new ilConfirmationGUI();
353  $cgui->setHeaderText(sprintf($this->lng->txt("survey_sure_delete_constraint"), $title, $relation));
354 
355  $cgui->setFormAction($this->ctrl->getFormAction($this, "deleteConstraints"));
356  $cgui->setCancel($this->lng->txt("cancel"), "constraints");
357  $cgui->setConfirm($this->lng->txt("confirm"), "deleteConstraints");
358 
359  $this->tpl->setContent($cgui->getHTML());
360  }
361 
365  public function deleteConstraintsObject()
366  {
367  $id = (int)$_REQUEST["precondition"];
368  if($this->validateConstraintForEdit($id))
369  {
370  ilUtil::sendSuccess($this->lng->txt("survey_constraint_deleted"), true);
371  $this->object->deleteConstraint($id);
372  }
373 
374  $this->ctrl->redirect($this, "constraints");
375  }
376 
377  function createConstraintsObject()
378  {
379  $include_elements = $_POST["includeElements"];
380  if ((!is_array($include_elements)) || (count($include_elements) == 0))
381  {
382  ilUtil::sendInfo($this->lng->txt("constraints_no_questions_or_questionblocks_selected"), true);
383  $this->ctrl->redirect($this, "constraints");
384  }
385  else if (count($include_elements) >= 1)
386  {
387  $_SESSION["includeElements"] = $include_elements;
388  sort($include_elements, SORT_NUMERIC);
389  $_GET["start"] = $include_elements[0];
390  $this->constraintStep1Object();
391  }
392  }
393 
394  function editPreconditionObject()
395  {
396  if(!$this->validateConstraintForEdit($_GET["precondition"]))
397  {
398  $this->ctrl->redirect($this, "constraints");
399  }
400 
401  $_SESSION["includeElements"] = array($_GET["start"]);
402  $this->ctrl->setParameter($this, "precondition", $_GET["precondition"]);
403  $this->ctrl->setParameter($this, "start", $_GET["start"]);
404  $this->ctrl->redirect($this, "constraintStep3");
405  }
406 }
407 
408 ?>