ILIAS Release_3_6_x_branch .rev 46809: assessment/classes/class.assQuestionGUI.php Source File

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00001 <?php
00002  /*
00003    +----------------------------------------------------------------------------+
00004    | ILIAS open source                                                          |
00005    +----------------------------------------------------------------------------+
00006    | Copyright (c) 1998-2001 ILIAS open source, University of Cologne           |
00007    |                                                                            |
00008    | This program is free software; you can redistribute it and/or              |
00009    | modify it under the terms of the GNU General Public License                |
00010    | as published by the Free Software Foundation; either version 2             |
00011    | of the License, or (at your option) any later version.                     |
00012    |                                                                            |
00013    | This program is distributed in the hope that it will be useful,            |
00014    | but WITHOUT ANY WARRANTY; without even the implied warranty of             |
00015    | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              |
00016    | GNU General Public License for more details.                               |
00017    |                                                                            |
00018    | You should have received a copy of the GNU General Public License          |
00019    | along with this program; if not, write to the Free Software                |
00020    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
00021    +----------------------------------------------------------------------------+
00022 */
00023 
00024 include_once "./assessment/classes/inc.AssessmentConstants.php";
00025 
00037 class ASS_QuestionGUI
00038 {
00046         var $object;
00047 
00048         var $tpl;
00049         var $lng;
00050         var $error;
00051         
00056         var $sequence_no;
00064         function ASS_QuestionGUI()
00065         {
00066                 global $lng, $tpl, $ilCtrl;
00067 
00068 
00069                 $this->lng =& $lng;
00070                 $this->tpl =& $tpl;
00071                 $this->ctrl =& $ilCtrl;
00072                 $this->ctrl->saveParameter($this, "q_id");
00073 
00074                 include_once "./assessment/classes/class.assQuestion.php";
00075                 $this->object = new ASS_Question();
00076         }
00077 
00081         function &executeCommand()
00082         {
00083                 $cmd = $this->ctrl->getCmd("editQuestion");
00084                 $next_class = $this->ctrl->getNextClass($this);
00085 
00086                 $cmd = $this->getCommand($cmd);
00087 
00088                 switch($next_class)
00089                 {
00090                         default:
00091                                 $ret =& $this->$cmd();
00092                                 break;
00093                 }
00094                 return $ret;
00095         }
00096 
00097         function getCommand($cmd)
00098         {
00099                 return $cmd;
00100         }
00101 
00102 
00111         function getQuestionType()
00112         {
00113                 return "";
00114         }
00115 
00119         function getType()
00120         {
00121                 return $this->getQuestionType();
00122         }
00123 
00131         function outOtherQuestionData()
00132         {
00133         }
00134 
00143         function writePostData()
00144         {
00145         }
00146 
00154         function outWorkingForm($test_id = "", $is_postponed = false)
00155         {
00156         }
00157 
00161         function assessment()
00162         {
00163                 $this->tpl->addBlockFile("CONTENT", "content", "tpl.il_as_qpl_content.html", true);
00164                 $this->tpl->addBlockFile("STATUSLINE", "statusline", "tpl.statusline.html");
00165 
00166                 // catch feedback message
00167                 sendInfo();
00168 
00169                 $total_of_answers = $this->object->getTotalAnswers();
00170                 $counter = 0;
00171                 $color_class = array("tblrow1", "tblrow2");
00172                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.il_as_qpl_assessment_of_questions.html", true);
00173                 if (!$total_of_answers)
00174                 {
00175                         $this->tpl->setCurrentBlock("emptyrow");
00176                         $this->tpl->setVariable("TXT_NO_ASSESSMENT", $this->lng->txt("qpl_assessment_no_assessment_of_questions"));
00177                         $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00178                         $this->tpl->parseCurrentBlock();
00179                 }
00180                 else
00181                 {
00182                         $this->tpl->setCurrentBlock("row");
00183                         $this->tpl->setVariable("TXT_RESULT", $this->lng->txt("qpl_assessment_total_of_answers"));
00184                         $this->tpl->setVariable("TXT_VALUE", $total_of_answers);
00185                         $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00186                         $counter++;
00187                         $this->tpl->parseCurrentBlock();
00188                         $this->tpl->setCurrentBlock("row");
00189                         $this->tpl->setVariable("TXT_RESULT", $this->lng->txt("qpl_assessment_total_of_right_answers"));
00190                         $this->tpl->setVariable("TXT_VALUE", sprintf("%2.2f", $this->object->_getTotalRightAnswers($_GET["q_id"]) * 100.0) . " %");
00191                         $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00192                         $this->tpl->parseCurrentBlock();
00193                 }
00194                 $this->tpl->setCurrentBlock("adm_content");
00195                 $this->tpl->setVariable("TXT_QUESTION_TITLE", $this->object->getTitle());
00196                 $this->tpl->setVariable("TXT_RESULT", $this->lng->txt("result"));
00197                 $this->tpl->setVariable("TXT_VALUE", $this->lng->txt("value"));
00198                 $this->tpl->parseCurrentBlock();
00199         }
00200 
00201 
00210         function writeOtherPostData($result = 0)
00211         {
00212                 $this->object->setEstimatedWorkingTime(
00213                         ilUtil::stripSlashes($_POST["Estimated"][h]),
00214                         ilUtil::stripSlashes($_POST["Estimated"][m]),
00215                         ilUtil::stripSlashes($_POST["Estimated"][s])
00216                 );
00217 
00218                 $saved = false;
00219                 return $saved;
00220         }
00221 
00233         function &_getQuestionGUI($question_type, $question_id = -1)
00234         {
00235                 include_once "./assessment/classes/class.assQuestion.php";
00236                 if ((!$question_type) and ($question_id > 0))
00237                 {
00238                         $question_type = ASS_Question::getQuestionTypeFromDb($question_id);
00239 // echo ":".$question_type;
00240                 }
00241                 switch ($question_type)
00242                 {
00243                         case "qt_multiple_choice_sr":
00244                                 include_once "./assessment/classes/class.assMultipleChoiceGUI.php";
00245                                 $question =& new ASS_MultipleChoiceGUI();
00246                                 $question->object->set_response(RESPONSE_SINGLE);
00247                                 break;
00248 
00249                         case "qt_multiple_choice_mr":
00250                                 include_once "./assessment/classes/class.assMultipleChoiceGUI.php";
00251                                 $question =& new ASS_MultipleChoiceGUI();
00252                                 $question->object->set_response(RESPONSE_MULTIPLE);
00253                                 break;
00254 
00255                         case "qt_cloze":
00256                                 include_once "./assessment/classes/class.assClozeTestGUI.php";
00257                                 $question =& new ASS_ClozeTestGUI();
00258                                 break;
00259 
00260                         case "qt_matching":
00261                                 include_once "./assessment/classes/class.assMatchingQuestionGUI.php";
00262                                 $question =& new ASS_MatchingQuestionGUI();
00263                                 break;
00264 
00265                         case "qt_ordering":
00266                                 include_once "./assessment/classes/class.assOrderingQuestionGUI.php";
00267                                 $question =& new ASS_OrderingQuestionGUI();
00268                                 break;
00269 
00270                         case "qt_imagemap":
00271                                 include_once "./assessment/classes/class.assImagemapQuestionGUI.php";
00272                                 $question =& new ASS_ImagemapQuestionGUI();
00273                                 break;
00274 
00275                         case "qt_javaapplet":
00276                                 include_once "./assessment/classes/class.assJavaAppletGUI.php";
00277                                 $question =& new ASS_JavaAppletGUI();
00278                                 break;
00279                         case "qt_text":
00280                                 include_once "./assessment/classes/class.assTextQuestionGUI.php";
00281                                 $question =& new ASS_TextQuestionGUI();
00282                                 break;
00283                 }
00284                 if ($question_id > 0)
00285                 {
00286                         $question->object->loadFromDb($question_id);
00287                 }
00288 
00289                 return $question;
00290         }
00291 
00292         function _getGUIClassNameForId($a_q_id)
00293         {
00294                 include_once "./assessment/classes/class.assQuestion.php";
00295                 include_once "./assessment/classes/class.assQuestionGUI.php";
00296                 $q_type =  ASS_Question::getQuestionTypeFromDb($a_q_id);
00297                 $class_name = ASS_QuestionGUI::_getClassNameForQType($q_type);
00298                 return $class_name;
00299         }
00300 
00301         function _getClassNameForQType($q_type)
00302         {
00303                 switch ($q_type)
00304                 {
00305                         case "qt_multiple_choice_sr":
00306                                 return "ASS_MultipleChoiceGUI";
00307                                 break;
00308 
00309                         case "qt_multiple_choice_mr":
00310                                 return "ASS_MultipleChoiceGUI";
00311                                 break;
00312 
00313                         case "qt_cloze":
00314                                 return "ASS_ClozeTestGUI";
00315                                 break;
00316 
00317                         case "qt_matching":
00318                                 return "ASS_MatchingQuestionGUI";
00319                                 break;
00320 
00321                         case "qt_ordering":
00322                                 return "ASS_OrderingQuestionGUI";
00323                                 break;
00324 
00325                         case "qt_imagemap":
00326                                 return "ASS_ImagemapQuestionGUI";
00327                                 break;
00328 
00329                         case "qt_javaapplet":
00330                                 return "ASS_JavaAppletGUI";
00331                                 break;
00332 
00333                         case "qt_text":
00334                                 return "ASS_TextQuestionGUI";
00335                                 break;
00336                 }
00337 
00338         }
00339 
00350         function &createQuestionGUI($question_type, $question_id = -1)
00351         {
00352                 include_once "./assessment/classes/class.assQuestionGUI.php";
00353                 $this->question =& ASS_QuestionGUI::_getQuestionGUI($question_type, $question_id);
00354         }
00355 
00359         function getQuestionTemplate($q_type)
00360         {
00361                 $this->tpl->addBlockFile("CONTENT", "content", "tpl.il_as_qpl_content.html", true);
00362                 $this->tpl->addBlockFile("STATUSLINE", "statusline", "tpl.statusline.html");
00363                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.il_as_question.html", true);
00364         }
00365 
00369         function outQuestionPage($a_temp_var, $a_postponed = false, $test_id = "")
00370         {
00371                 $postponed = "";
00372                 if ($a_postponed)
00373                 {
00374                         $postponed = " (" . $this->lng->txt("postponed") . ")";
00375                 }
00376 
00377                 include_once("content/classes/Pages/class.ilPageObject.php");
00378                 include_once("content/classes/Pages/class.ilPageObjectGUI.php");
00379                 $this->lng->loadLanguageModule("content");
00380                 $page =& new ilPageObject("qpl", $this->object->getId());
00381                 $page_gui =& new ilPageObjectGUI($page);
00382                 $page_gui->setQuestionXML($this->object->to_xml(false, false, true, $test_id, $force_image_references = true));
00383                 $page_gui->setTemplateTargetVar($a_temp_var);
00384                 $page_gui->setFileDownloadLink("ilias.php?baseClass=ilObjTestGUI&cmd=downloadFile".
00385                         "&amp;ref_id=".$_GET["ref_id"]);
00386                 $page_gui->setFullscreenLink("ilias.php?baseClass=ilObjTestGUI&cmd=fullscreen".
00387                         "&amp;ref_id=".$_GET["ref_id"]);
00388                 $page_gui->setSourcecodeDownloadScript("ilias.php?baseClass=ilObjTestGUI&ref_id=".$_GET["ref_id"]);
00389                 $page_gui->setOutputMode("presentation");
00390                 //$page_gui->setHeader($this->object->getTitle());
00391                 include_once "./assessment/classes/class.ilObjTest.php";
00392                 $maxpoints = " (".$this->object->getMaximumPoints()." ".$this->lng->txt("points").")";
00393                 if (ilObjTest::_getHideTitlePoints($test_id))
00394                 {
00395                         $maxpoints = "";
00396                 }
00397                 if (!$a_postponed && is_numeric($this->sequence_no))
00398                         $page_gui->setPresentationTitle($this->lng->txt("question")." ".$this->sequence_no." - ".$this->object->getTitle().$postponed.$maxpoints);
00399                 else 
00400                         $page_gui->setPresentationTitle($this->object->getTitle().$postponed.$maxpoints);
00401                 return $page_gui->presentation();
00402         }
00403         
00407         function cancel()
00408         {
00409                 if ($_GET["calling_test"])
00410                 {
00411                         $_GET["ref_id"] = $_GET["calling_test"];
00412                         ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["calling_test"]);
00413                 }
00414                 elseif ($_GET["test_ref_id"])
00415                 {
00416                         $_GET["ref_id"] = $_GET["test_ref_id"];
00417                         ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["test_ref_id"]);
00418                 }
00419                 else
00420                 {
00421                         if ($_GET["q_id"] > 0)
00422                         {
00423                                 $this->ctrl->setParameterByClass("ilpageobjectgui", "q_id", $_GET["q_id"]);
00424                                 $this->ctrl->redirectByClass("ilpageobjectgui", "view");
00425                         }
00426                         else
00427                         {
00428                                 $this->ctrl->redirectByClass("ilobjquestionpoolgui", "questions");
00429                         }
00430                 }
00431         }
00432 
00433         function originalSyncForm()
00434         {
00435                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.il_tst_sync_original.html", true);
00436                 $this->tpl->setCurrentBlock("adm_content");
00437                 $this->tpl->setVariable("BUTTON_YES", $this->lng->txt("yes"));
00438                 $this->tpl->setVariable("BUTTON_NO", $this->lng->txt("no"));
00439                 $this->tpl->setVariable("FORM_ACTION", $this->ctrl->getFormAction($this));
00440                 $this->tpl->setVariable("TEXT_SYNC", $this->lng->txt("confirm_sync_questions"));
00441                 $this->tpl->parseCurrentBlock();
00442         }
00443         
00444         function sync()
00445         {
00446                 $original_id = $this->object->original_id;
00447                 if ($original_id)
00448                 {
00449                         $this->object->syncWithOriginal();
00450                 }
00451                 $_GET["ref_id"] = $_GET["calling_test"];
00452                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["calling_test"]);
00453         }
00454 
00455         function cancelSync()
00456         {
00457                 $_GET["ref_id"] = $_GET["calling_test"];
00458                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["calling_test"]);
00459         }
00460                 
00464         function saveEdit()
00465         {
00466                 global $ilUser;
00467 
00468                 $result = $this->writePostData();
00469                 if ($result == 0)
00470                 {
00471                         $ilUser->setPref("tst_lastquestiontype", $this->object->getQuestionType());
00472                         $ilUser->writePref("tst_lastquestiontype", $this->object->getQuestionType());
00473                         $this->object->saveToDb();
00474                         $originalexists = $this->object->_questionExists($this->object->original_id);
00475                         include_once "./assessment/classes/class.assQuestion.php";
00476                         if ($_GET["calling_test"] && $originalexists && ASS_Question::_isWriteable($this->object->original_id, $ilUser->getId()))
00477                         {
00478                                 $this->originalSyncForm();
00479                         }
00480                         elseif ($_GET["calling_test"])
00481                         {
00482                                 $_GET["ref_id"] = $_GET["calling_test"];
00483                                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["calling_test"]);
00484                                 return;
00485                         }
00486                         elseif ($_GET["test_ref_id"])
00487                         {
00488                                 include_once ("./assessment/classes/class.ilObjTest.php");
00489                                 $_GET["ref_id"] = $_GET["test_ref_id"];
00490                                 $test =& new ilObjTest($_GET["test_ref_id"], true);
00491                                 $test->insertQuestion($this->object->getId());
00492                                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["test_ref_id"]);
00493                         }
00494                         else
00495                         {
00496                                 $_GET["q_id"] = $this->object->getId();
00497                                 $this->editQuestion();
00498                                 if (strcmp($_SESSION["info"], "") != 0)
00499                                 {
00500                                         sendInfo($_SESSION["info"] . "<br />" . $this->lng->txt("msg_obj_modified"), false);
00501                                 }
00502                                 else
00503                                 {
00504                                         sendInfo($this->lng->txt("msg_obj_modified"), false);
00505                                 }
00506                                 $this->ctrl->setParameterByClass("ilpageobjectgui", "q_id", $this->object->getId());
00507                                 $this->ctrl->redirectByClass("ilpageobjectgui", "view");
00508                         }
00509                 }
00510                 else
00511                 {
00512       sendInfo($this->lng->txt("fill_out_all_required_fields"));
00513                         $this->editQuestion();
00514                 }
00515         }
00516 
00520         function save()
00521         {
00522                 global $ilUser;
00523                 
00524                 $old_id = $_GET["q_id"];
00525                 $result = $this->writePostData();
00526                 if ($result == 0)
00527                 {
00528                         $ilUser->setPref("tst_lastquestiontype", $this->object->getQuestionType());
00529                         $ilUser->writePref("tst_lastquestiontype", $this->object->getQuestionType());
00530                         $this->object->saveToDb();
00531                         $originalexists = $this->object->_questionExists($this->object->original_id);
00532                         include_once "./assessment/classes/class.assQuestion.php";
00533                         if ($_GET["calling_test"] && $originalexists && ASS_Question::_isWriteable($this->object->original_id, $ilUser->getId()))
00534                         {
00535                                 $this->originalSyncForm();
00536                         }
00537                         elseif ($_GET["calling_test"])
00538                         {
00539                                 $_GET["ref_id"] = $_GET["calling_test"];
00540                                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["calling_test"]);
00541                                 return;
00542                         }
00543                         elseif ($_GET["test_ref_id"])
00544                         {
00545                                 include_once ("./assessment/classes/class.ilObjTest.php");
00546                                 $_GET["ref_id"] = $_GET["test_ref_id"];
00547                                 $test =& new ilObjTest($_GET["test_ref_id"], true);
00548                                 $test->insertQuestion($this->object->getId());
00549                                 ilUtil::redirect("ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=".$_GET["test_ref_id"]);
00550                         }
00551                         else
00552                         {
00553                                 $_GET["q_id"] = $this->object->getId();
00554                                 if ($_GET["q_id"] !=  $old_id)
00555                                 {
00556                                         // first save
00557                                         $this->ctrl->setParameterByClass($_GET["cmdClass"], "q_id", $this->object->getId());
00558                                         $this->ctrl->setParameterByClass($_GET["cmdClass"], "sel_question_types", $_GET["sel_question_types"]);
00559                                         sendInfo($this->lng->txt("msg_obj_modified"), true);
00560                                         $this->ctrl->redirectByClass($_GET["cmdClass"], "editQuestion");
00561                                 }
00562                                 if (strcmp($_SESSION["info"], "") != 0)
00563                                 {
00564                                         sendInfo($_SESSION["info"] . "<br />" . $this->lng->txt("msg_obj_modified"), false);
00565                                 }
00566                                 else
00567                                 {
00568                                         sendInfo($this->lng->txt("msg_obj_modified"), false);
00569                                 }
00570                                 $this->editQuestion();
00571         //                      $this->ctrl->setParameterByClass("ilpageobjectgui", "q_id", $this->object->getId());
00572         //                      $this->ctrl->redirectByClass("ilpageobjectgui", "view");
00573                         }
00574                 }
00575                 else
00576                 {
00577       sendInfo($this->lng->txt("fill_out_all_required_fields"));
00578                         $this->editQuestion();
00579                 }
00580         }
00581 
00585         function apply()
00586         {
00587                 $this->writePostData();
00588                 $this->object->saveToDb();
00589                 $_GET["q_id"] = $this->object->getId();
00590                 $this->editQuestion();
00591         }
00592         
00593         function cancelExplorer()
00594         {
00595                 unset($_SESSION["subquestion_index"]);
00596                 unset($_SESSION["link_new_type"]);
00597                 $this->editQuestion();
00598         }
00599         
00600         function addSuggestedSolution()
00601         {
00602                 global $tree;
00603 
00604                 include_once("./assessment/classes/class.ilSolutionExplorer.php");
00605                 switch ($_POST["internalLinkType"])
00606                 {
00607                         case "lm":
00608                                 $_SESSION["link_new_type"] = "lm";
00609                                 $_SESSION["search_link_type"] = "lm";
00610                                 break;
00611                         case "glo":
00612                                 $_SESSION["link_new_type"] = "glo";
00613                                 $_SESSION["search_link_type"] = "glo";
00614                                 break;
00615                         case "st":
00616                                 $_SESSION["link_new_type"] = "lm";
00617                                 $_SESSION["search_link_type"] = "st";
00618                                 break;
00619                         case "pg":
00620                                 $_SESSION["link_new_type"] = "lm";
00621                                 $_SESSION["search_link_type"] = "pg";
00622                                 break;
00623                         default:
00624                                 if (!$_SESSION["link_new_type"])
00625                                 {
00626                                         $_SESSION["link_new_type"] = "lm";
00627                                 }
00628                                 break;
00629                 }
00630 
00631                 sendInfo($this->lng->txt("select_object_to_link"));
00632                 
00633                 $exp = new ilSolutionExplorer($this->ctrl->getLinkTarget($this,'addSuggestedSolution'), get_class($this));
00634 
00635                 $exp->setExpand($_GET["expand"] ? $_GET["expand"] : $tree->readRootId());
00636                 $exp->setExpandTarget($this->ctrl->getLinkTarget($this,'addSuggestedSolution'));
00637                 $exp->setTargetGet("ref_id");
00638                 $exp->setRefId($this->cur_ref_id);
00639                 $exp->addFilter($_SESSION["link_new_type"]);
00640                 $exp->setSelectableType($_SESSION["link_new_type"]);
00641 
00642                 // build html-output
00643                 $exp->setOutput(0);
00644 
00645                 $this->tpl->addBlockFile("EXPLORER", "explorer", "tpl.il_as_qpl_explorer.html", true);
00646                 $this->tpl->setVariable("EXPLORER_TREE",$exp->getOutput());
00647                 $this->tpl->setVariable("BUTTON_CANCEL",$this->lng->txt("cancel"));
00648                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00649                 $this->tpl->parseCurrentBlock();
00650         }
00651         
00652         function removeSuggestedSolution()
00653         {
00654                 $this->object->suggested_solutions = array();
00655                 $this->object->saveToDb();
00656                 $this->editQuestion();
00657         }
00658         
00659         function addPG()
00660         {
00661                 $subquestion_index = 0;
00662                 if ($_SESSION["subquestion_index"] >= 0)
00663                 {
00664                         $subquestion_index = $_SESSION["subquestion_index"];
00665                 }
00666                 $this->object->setSuggestedSolution("il__pg_" . $_GET["pg"], $subquestion_index);
00667                 unset($_SESSION["subquestion_index"]);
00668                 unset($_SESSION["link_new_type"]);
00669                 unset($_SESSION["search_link_type"]);
00670                 sendInfo($this->lng->txt("suggested_solution_added_successfully"));
00671                 $this->editQuestion();
00672         }
00673         
00674         function addST()
00675         {
00676                 $subquestion_index = 0;
00677                 if ($_SESSION["subquestion_index"] >= 0)
00678                 {
00679                         $subquestion_index = $_SESSION["subquestion_index"];
00680                 }
00681                 $this->object->setSuggestedSolution("il__st_" . $_GET["st"], $subquestion_index);
00682                 unset($_SESSION["subquestion_index"]);
00683                 unset($_SESSION["link_new_type"]);
00684                 unset($_SESSION["search_link_type"]);
00685                 sendInfo($this->lng->txt("suggested_solution_added_successfully"));
00686                 $this->editQuestion();
00687         }
00688 
00689         function addGIT()
00690         {
00691                 $subquestion_index = 0;
00692                 if ($_SESSION["subquestion_index"] >= 0)
00693                 {
00694                         $subquestion_index = $_SESSION["subquestion_index"];
00695                 }
00696                 $this->object->setSuggestedSolution("il__git_" . $_GET["git"], $subquestion_index);
00697                 unset($_SESSION["subquestion_index"]);
00698                 unset($_SESSION["link_new_type"]);
00699                 unset($_SESSION["search_link_type"]);
00700                 sendInfo($this->lng->txt("suggested_solution_added_successfully"));
00701                 $this->editQuestion();
00702         }
00703         
00704         function linkChilds()
00705         {
00706                 switch ($_SESSION["search_link_type"])
00707                 {
00708                         case "pg":
00709                                 include_once "./content/classes/class.ilLMPageObject.php";
00710                                 include_once("./content/classes/class.ilObjContentObject.php");
00711                                 $cont_obj =& new ilObjContentObject($_GET["source_id"], true);
00712                                 $pages = ilLMPageObject::getPageList($cont_obj->getId());
00713                                 $_GET["q_id"] = $this->object->getId();
00714                                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00715                                 $this->getQuestionTemplate($_GET["sel_question_types"]);
00716                                 $color_class = array("tblrow1", "tblrow2");
00717                                 $counter = 0;
00718                                 $this->tpl->addBlockFile("LINK_SELECTION", "link_selection", "tpl.il_as_qpl_internallink_selection.html", true);
00719                                 foreach($pages as $page)
00720                                 {
00721                                         if($page["type"] == $_SESSION["search_link_type"])
00722                                         {
00723                                                 $this->tpl->setCurrentBlock("linktable_row");
00724                                                 $this->tpl->setVariable("TEXT_LINK", $page["title"]);
00725                                                 $this->tpl->setVariable("TEXT_ADD", $this->lng->txt("add"));
00726                                                 $this->tpl->setVariable("LINK_HREF", $this->ctrl->getLinkTargetByClass(get_class($this), "add" . strtoupper($page["type"])) . "&" . $page["type"] . "=" . $page["obj_id"]);
00727                                                 $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00728                                                 $this->tpl->parseCurrentBlock();
00729                                                 $counter++;
00730                                         }
00731                                 }
00732                                 $this->tpl->setCurrentBlock("link_selection");
00733                                 $this->tpl->setVariable("BUTTON_CANCEL",$this->lng->txt("cancel"));
00734                                 $this->tpl->setVariable("TEXT_LINK_TYPE", $this->lng->txt("obj_" . $_SESSION["search_link_type"]));
00735                                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00736                                 $this->tpl->parseCurrentBlock();
00737                                 break;
00738                         case "st":
00739                                 $_GET["q_id"] = $this->object->getId();
00740                                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00741                                 $this->getQuestionTemplate($_GET["sel_question_types"]);
00742                                 $color_class = array("tblrow1", "tblrow2");
00743                                 $counter = 0;
00744                                 include_once("./content/classes/class.ilObjContentObject.php");
00745                                 $cont_obj =& new ilObjContentObject($_GET["source_id"], true);
00746                                 // get all chapters
00747                                 $ctree =& $cont_obj->getLMTree();
00748                                 $nodes = $ctree->getSubtree($ctree->getNodeData($ctree->getRootId()));
00749                                 $this->tpl->addBlockFile("LINK_SELECTION", "link_selection", "tpl.il_as_qpl_internallink_selection.html", true);
00750                                 foreach($nodes as $node)
00751                                 {
00752                                         if($node["type"] == $_SESSION["search_link_type"])
00753                                         {
00754                                                 $this->tpl->setCurrentBlock("linktable_row");
00755                                                 $this->tpl->setVariable("TEXT_LINK", $node["title"]);
00756                                                 $this->tpl->setVariable("TEXT_ADD", $this->lng->txt("add"));
00757                                                 $this->tpl->setVariable("LINK_HREF", $this->ctrl->getLinkTargetByClass(get_class($this), "add" . strtoupper($node["type"])) . "&" . $node["type"] . "=" . $node["obj_id"]);
00758                                                 $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00759                                                 $this->tpl->parseCurrentBlock();
00760                                                 $counter++;
00761                                         }
00762                                 }
00763                                 $this->tpl->setCurrentBlock("link_selection");
00764                                 $this->tpl->setVariable("BUTTON_CANCEL",$this->lng->txt("cancel"));
00765                                 $this->tpl->setVariable("TEXT_LINK_TYPE", $this->lng->txt("obj_" . $_SESSION["search_link_type"]));
00766                                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00767                                 $this->tpl->parseCurrentBlock();
00768                                 break;
00769                         case "glo":
00770                                 $_GET["q_id"] = $this->object->getId();
00771                                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00772                                 $this->getQuestionTemplate($_GET["sel_question_types"]);
00773                                 $color_class = array("tblrow1", "tblrow2");
00774                                 $counter = 0;
00775                                 $this->tpl->addBlockFile("LINK_SELECTION", "link_selection", "tpl.il_as_qpl_internallink_selection.html", true);
00776                                 include_once "./content/classes/class.ilObjGlossary.php";
00777                                 $glossary =& new ilObjGlossary($_GET["source_id"], true);
00778                                 // get all glossary items
00779                                 $terms = $glossary->getTermList();
00780                                 foreach($terms as $term)
00781                                 {
00782                                         $this->tpl->setCurrentBlock("linktable_row");
00783                                         $this->tpl->setVariable("TEXT_LINK", $term["term"]);
00784                                         $this->tpl->setVariable("TEXT_ADD", $this->lng->txt("add"));
00785                                         $this->tpl->setVariable("LINK_HREF", $this->ctrl->getLinkTargetByClass(get_class($this), "addGIT") . "&git=" . $term["id"]);
00786                                         $this->tpl->setVariable("COLOR_CLASS", $color_class[$counter % 2]);
00787                                         $this->tpl->parseCurrentBlock();
00788                                         $counter++;
00789                                 }
00790                                 $this->tpl->setCurrentBlock("link_selection");
00791                                 $this->tpl->setVariable("BUTTON_CANCEL",$this->lng->txt("cancel"));
00792                                 $this->tpl->setVariable("TEXT_LINK_TYPE", $this->lng->txt("glossary_term"));
00793                                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00794                                 $this->tpl->parseCurrentBlock();
00795                                 break;
00796                         case "lm":
00797                                 $subquestion_index = 0;
00798                                 if ($_SESSION["subquestion_index"] >= 0)
00799                                 {
00800                                         $subquestion_index = $_SESSION["subquestion_index"];
00801                                 }
00802                                 $this->object->setSuggestedSolution("il__lm_" . $_GET["source_id"], $subquestion_index);
00803                                 unset($_SESSION["subquestion_index"]);
00804                                 unset($_SESSION["link_new_type"]);
00805                                 unset($_SESSION["search_link_type"]);
00806                                 sendInfo($this->lng->txt("suggested_solution_added_successfully"));
00807                                 $this->editQuestion();
00808                                 break;
00809                 }
00810         }
00811         
00812         function replaceInputElements  ($gap_idx, $solution, $output, $before="[", $after="]") {                
00813                 #echo htmlentities ($output)."<br>";
00814                 #echo htmlentities ($gap_idx)."<br>";
00815                 $before = "<span class=\"textanswer\">".$before;
00816                 $after  = $after . "</span>";
00817                 $output = preg_replace ("/(<input[^>]*".$gap_idx."[^>]*>)/" , $before.$solution.$after, $output);
00818                 #echo htmlentities ($output)."<br>";            
00819                 return $output; 
00820         }
00821 
00822         /*function replaceInputElements  ($gap_idx, $solution, $output, $before="", $after="") {                
00823                 #echo htmlentities ($output)."<br>";
00824                 #echo htmlentities ($gap_idx)."<br>";
00825                 $before="<span class=\"textanswer\">[";
00826                 $after="]</span>";
00827                 $output = preg_replace ("/(<input[^>]*".$gap_idx."[^>]*>)/" , $before.$solution.$after, $output);
00828                 #echo htmlentities ($output)."<br>";            
00829                 return $output; 
00830         }*/
00831         
00832         function replaceSelectElements ($gap_idx, $repl_str, $output)//, $before="", $after="") {
00833         {
00834                 #echo htmlentities ($output)."<br>";
00835                 #echo htmlentities ($gap_idx)."<br>";
00836                 #echo htmlentities ($repl_str)."<br>";
00837                 $before="<span class=\"textanswer\">[";
00838                 $after="]</span>";      
00839         
00840                 $select_pattern = "/<select[^>]*name=\"$gap_idx\".*?[^>]*>.*?<\/select>/";
00841                 #echo  htmlentities ($select_pattern)."<br>";
00842                 // to extract the display value we need the according select statement 
00843                 if (preg_match($select_pattern, $output, $matches)) {
00844                         // got it, now we are trying to get the value
00845                         #echo "<br><br>".htmlentities ($matches[0]);
00846                         $value_pattern = "/<option[^>]*".$repl_str."[^>]*>(.*?)<\/option>/";                                                                                            
00847                         if (preg_match($value_pattern, $matches[0], $matches))
00848                                 $output = preg_replace ($select_pattern, $before.$matches[1].$after, $output);
00849 /*                      else 
00850                                 $output = preg_replace ($select_pattern, $before.$after, $output);*/
00851                 }
00852                 return $output; 
00853         }
00854         
00855         function removeFormElements ($output) {
00856                 $output = preg_replace ("/(<input[^>]*>)/" ,"[]", $output);                     
00857                 $output = preg_replace ("/<select[^>]*>.*?<\/select>/s" ,"[]", $output);                
00858                 return $output; 
00859         }
00860         
00861         function setSequenceNumber ($nr) {
00862                 $this->sequence_no = $nr;
00863         }
00864         
00865         function getSequenceNumber () {
00866                 return $this->sequence_no;
00867         }
00868         
00872         function outAdditionalOutput()
00873         {
00874         }
00875         
00876 }
00877 ?>