ILIAS Release_3_9_x_branch .rev 46835: Modules/TestQuestionPool/classes/class.assSingleChoiceGUI.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 "./Modules/TestQuestionPool/classes/class.assQuestionGUI.php";
00025 include_once "./Modules/Test/classes/inc.AssessmentConstants.php";
00026 
00037 class assSingleChoiceGUI extends assQuestionGUI
00038 {
00039         var $choiceKeys;
00040         
00049         function assSingleChoiceGUI(
00050                         $id = -1
00051         )
00052         {
00053                 $this->assQuestionGUI();
00054                 include_once "./Modules/TestQuestionPool/classes/class.assSingleChoice.php";
00055                 $this->object = new assSingleChoice();
00056                 if ($id >= 0)
00057                 {
00058                         $this->object->loadFromDb($id);
00059                 }
00060         }
00061 
00062         function getCommand($cmd)
00063         {
00064                 if (substr($cmd, 0, 6) == "upload")
00065                 {
00066                         $cmd = "upload";
00067                 }
00068                 if (substr($cmd, 0, 11) == "deleteImage")
00069                 {
00070                         $cmd = "deleteImage";
00071                 }
00072                 return $cmd;
00073         }
00074 
00082         function editQuestion()
00083         {
00084                 $this->tpl->addJavascript("./Services/JavaScript/js/Basic.js");
00085                 $javascript = "<script type=\"text/javascript\">ilAddOnLoad(initialSelect);\n".
00086                         "function initialSelect() {\n%s\n}</script>";
00087                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00088                 $multiline_answers = $this->object->getMultilineAnswerSetting();
00089                 if ($graphical_answer_setting == 0)
00090                 {
00091                         for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00092                         {
00093                                 $answer = $this->object->getAnswer($i);
00094                                 if (strlen($answer->getImage())) $graphical_answer_setting = 1;
00095                         }
00096                 }
00097                 $this->object->setGraphicalAnswerSetting($graphical_answer_setting);
00098                 $this->getQuestionTemplate();
00099                 $this->tpl->addBlockFile("QUESTION_DATA", "question_data", "tpl.il_as_qpl_mc_sr.html", "Modules/TestQuestionPool");
00100                 // output of existing single response answers
00101                 if ($this->object->getAnswerCount() > 0)
00102                 {
00103                         $this->tpl->setCurrentBlock("answersheading");
00104                         $this->tpl->setVariable("TEXT_POINTS", $this->lng->txt("points"));
00105                         $this->tpl->setVariable("TEXT_ANSWER_TEXT", $this->lng->txt("answer_text"));
00106                         $this->tpl->parseCurrentBlock();
00107                         $this->tpl->setCurrentBlock("selectall");
00108                         $this->tpl->setVariable("SELECT_ALL", $this->lng->txt("select_all"));
00109                         $this->tpl->parseCurrentBlock();
00110                         $this->tpl->setCurrentBlock("existinganswers");
00111                         $this->tpl->setVariable("DELETE", $this->lng->txt("delete"));
00112                         $this->tpl->setVariable("MOVE", $this->lng->txt("move"));
00113                         $this->tpl->setVariable("ARROW", "<img src=\"" . ilUtil::getImagePath("arrow_downright.gif") . "\" alt=\"".$this->lng->txt("arrow_downright")."\">");
00114                         $this->tpl->parseCurrentBlock();
00115                 }
00116                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00117                 {
00118                         $answer = $this->object->getAnswer($i);
00119                         if ($graphical_answer_setting == 1)
00120                         {
00121                                 $imagefilename = $this->object->getImagePath() . $answer->getImage();
00122                                 if (!@file_exists($imagefilename))
00123                                 {
00124                                         $answer->setImage("");
00125                                 }
00126                                 if (strlen($answer->getImage()))
00127                                 {
00128                                         $imagepath = $this->object->getImagePathWeb() . $answer->getImage();
00129                                         $this->tpl->setCurrentBlock("graphical_answer_image");
00130                                         $this->tpl->setVariable("IMAGE_FILE", $imagepath);
00131                                         if (strlen($answer->getAnswertext()))
00132                                         {
00133                                                 $this->tpl->setVariable("IMAGE_ALT", ilUtil::prepareFormOutput($answer->getAnswertext()));
00134                                         }
00135                                         else
00136                                         {
00137                                                 $this->tpl->setVariable("IMAGE_ALT", $this->lng->txt("image"));
00138                                         }
00139                                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00140                                         $this->tpl->setVariable("DELETE_IMAGE", $this->lng->txt("delete_image"));
00141                                         $this->tpl->parseCurrentBlock();
00142                                 }
00143                                 $this->tpl->setCurrentBlock("graphical_answer");
00144                                 $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00145                                 $this->tpl->setVariable("UPLOAD_IMAGE", $this->lng->txt("upload_image"));
00146                                 $this->tpl->setVariable("VALUE_IMAGE", $answer->getImage());
00147                                 $this->tpl->parseCurrentBlock();
00148                         }
00149                         if ($multiline_answers)
00150                         {
00151                                 $this->tpl->setCurrentBlock("show_textarea");
00152                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00153                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00154                                 $this->tpl->parseCurrentBlock();
00155                         }
00156                         else
00157                         {
00158                                 $this->tpl->setCurrentBlock("show_textinput");
00159                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00160                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00161                                 $this->tpl->parseCurrentBlock();
00162                         }
00163                         $this->tpl->setCurrentBlock("answers");
00164                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00165                         $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_POINTS", $answer->getPoints());
00166                         $this->tpl->setVariable("VALUE_TRUE", $this->lng->txt("true"));
00167                         $this->tpl->parseCurrentBlock();
00168                 }
00169                 // call to other question data i.e. estimated working time block
00170                 $this->outOtherQuestionData();
00171 
00172                 $internallinks = array(
00173                         "lm" => $this->lng->txt("obj_lm"),
00174                         "st" => $this->lng->txt("obj_st"),
00175                         "pg" => $this->lng->txt("obj_pg"),
00176                         "glo" => $this->lng->txt("glossary_term")
00177                 );
00178                 foreach ($internallinks as $key => $value)
00179                 {
00180                         $this->tpl->setCurrentBlock("internallink");
00181                         $this->tpl->setVariable("TYPE_INTERNAL_LINK", $key);
00182                         $this->tpl->setVariable("TEXT_INTERNAL_LINK", $value);
00183                         $this->tpl->parseCurrentBlock();
00184                 }
00185                 
00186                 $this->tpl->setCurrentBlock("HeadContent");
00187                 if ($this->object->getAnswerCount() == 0)
00188                 {
00189                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00190                 }
00191                 else
00192                 {
00193                         switch ($this->ctrl->getCmd())
00194                         {
00195                                 case "add":
00196                                         $nrOfAnswers = $_POST["nrOfAnswers"];
00197                                         if ((strcmp($nrOfAnswers, "yn") == 0) || (strcmp($nrOfAnswers, "tf") == 0)) $nrOfAnswers = 2;
00198                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - $nrOfAnswers).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - $nrOfAnswers)."').scrollIntoView(\"true\");"));
00199                                         break;
00200                                 case "deleteAnswer":
00201                                         if ($this->object->getAnswerCount() == 0)
00202                                         {
00203                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00204                                         }
00205                                         else
00206                                         {
00207                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - 1).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - 1)."').scrollIntoView(\"true\");"));
00208                                         }
00209                                         break;
00210                                 default:
00211                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00212                                         break;
00213                         }
00214                 }
00215                 $this->tpl->parseCurrentBlock();
00216 
00217                 for ($i = 1; $i < 10; $i++)
00218                 {
00219                         $this->tpl->setCurrentBlock("numbers");
00220                         $this->tpl->setVariable("VALUE_NUMBER", $i);
00221                         if ($i == 1)
00222                         {
00223                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answer"));
00224                         }
00225                         else
00226                         {
00227                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answers"));
00228                         }
00229                         $this->tpl->parseCurrentBlock();
00230                 }
00231                 // add yes/no answers
00232                 $this->tpl->setCurrentBlock("numbers");
00233                 $this->tpl->setVariable("VALUE_NUMBER", "yn");
00234                 $this->tpl->setVariable("TEXT_NUMBER", $this->lng->txt("add_answer_yn"));
00235                 $this->tpl->parseCurrentBlock();
00236                 // add true/false answers
00237                 $this->tpl->setCurrentBlock("numbers");
00238                 $this->tpl->setVariable("VALUE_NUMBER", "tf");
00239                 $this->tpl->setVariable("TEXT_NUMBER", $this->lng->txt("add_answer_tf"));
00240                 $this->tpl->parseCurrentBlock();
00241 
00242                 $this->tpl->setCurrentBlock("question_data");
00243                 $this->tpl->setVariable("MULTIPLE_CHOICE_ID", $this->object->getId());
00244                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_TITLE", ilUtil::prepareFormOutput($this->object->getTitle()));
00245                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_COMMENT", ilUtil::prepareFormOutput($this->object->getComment()));
00246                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_AUTHOR", ilUtil::prepareFormOutput($this->object->getAuthor()));
00247                 $questiontext = $this->object->getQuestion();
00248                 $this->tpl->setVariable("VALUE_QUESTION", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($questiontext)));
00249                 $this->tpl->setVariable("VALUE_ADD_ANSWER", $this->lng->txt("add"));
00250                 $this->tpl->setVariable("TEXT_GRAPHICAL_ANSWERS", $this->lng->txt("graphical_answers"));
00251                 $this->tpl->setVariable("TEXT_HIDE_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_hide"));
00252                 $this->tpl->setVariable("TEXT_SHOW_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_show"));
00253                 if ($this->object->getGraphicalAnswerSetting() == 1)
00254                 {
00255                         $this->tpl->setVariable("SELECTED_SHOW_GRAPHICAL_ANSWER_SUPPORT", " selected=\"selected\"");
00256                 }
00257                 if ($multiline_answers)
00258                 {
00259                         $this->tpl->setVariable("SELECTED_SHOW_MULTILINE_ANSWERS", " selected=\"selected\"");
00260                 }
00261                 $this->tpl->setVariable("TEXT_HIDE_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_hide"));
00262                 $this->tpl->setVariable("TEXT_SHOW_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_show"));
00263                 $this->tpl->setVariable("SET_EDIT_MODE", $this->lng->txt("set_edit_mode"));
00264                 $this->tpl->setVariable("TEXT_TITLE", $this->lng->txt("title"));
00265                 $this->tpl->setVariable("TEXT_AUTHOR", $this->lng->txt("author"));
00266                 $this->tpl->setVariable("TEXT_COMMENT", $this->lng->txt("description"));
00267                 $this->tpl->setVariable("TEXT_QUESTION", $this->lng->txt("question"));
00268                 $this->tpl->setVariable("TEXT_SHUFFLE_ANSWERS", $this->lng->txt("shuffle_answers"));
00269                 $this->tpl->setVariable("TXT_YES", $this->lng->txt("yes"));
00270                 $this->tpl->setVariable("TXT_NO", $this->lng->txt("no"));
00271                 if ($this->object->getShuffle())
00272                 {
00273                         $this->tpl->setVariable("SELECTED_YES", " selected=\"selected\"");
00274                 }
00275                 else
00276                 {
00277                         $this->tpl->setVariable("SELECTED_NO", " selected=\"selected\"");
00278                 }
00279                 $this->tpl->setVariable("TEXT_SOLUTION_HINT", $this->lng->txt("solution_hint"));
00280                 if (count($this->object->suggested_solutions))
00281                 {
00282                         $solution_array = $this->object->getSuggestedSolution(0);
00283                         include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
00284                         $href = assQuestion::_getInternalLinkHref($solution_array["internal_link"]);
00285                         $this->tpl->setVariable("TEXT_VALUE_SOLUTION_HINT", " <a href=\"$href\" target=\"content\">" . $this->lng->txt("solution_hint"). "</a> ");
00286                         $this->tpl->setVariable("BUTTON_REMOVE_SOLUTION", $this->lng->txt("remove"));
00287                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("change"));
00288                         $this->tpl->setVariable("VALUE_SOLUTION_HINT", $solution_array["internal_link"]);
00289                 }
00290                 else
00291                 {
00292                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("add"));
00293                 }
00294                 $this->tpl->setVariable("SAVE",$this->lng->txt("save"));
00295                 $this->tpl->setVariable("SAVE_EDIT", $this->lng->txt("save_edit"));
00296                 $this->tpl->setVariable("CANCEL",$this->lng->txt("cancel"));
00297                 $this->tpl->setVariable("TXT_REQUIRED_FLD", $this->lng->txt("required_field"));
00298                 $this->ctrl->setParameter($this, "sel_question_types", "assSingleChoice");
00299                 $this->tpl->setVariable("ACTION_MULTIPLE_CHOICE_TEST", $this->ctrl->getFormAction($this));
00300                 $this->tpl->setVariable("TEXT_QUESTION_TYPE", $this->lng->txt("assSingleChoice"));
00301 
00302                 $this->tpl->parseCurrentBlock();
00303                 include_once "./Services/RTE/classes/class.ilRTE.php";
00304                 $rtestring = ilRTE::_getRTEClassname();
00305                 include_once "./Services/RTE/classes/class.$rtestring.php";
00306                 $rte = new $rtestring();
00307                 $rte->addPlugin("latex");
00308                 $rte->addButton("latex");
00309                 $rte->addButton("pastelatex");
00310                 include_once "./classes/class.ilObject.php";
00311                 $obj_id = $_GET["q_id"];
00312                 $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
00313                 $rte->addRTESupport($obj_id, $obj_type, "assessment");
00314 
00315                 $this->tpl->setCurrentBlock("adm_content");
00316                 //$this->tpl->setVariable("BODY_ATTRIBUTES", " onload=\"initialSelect();\""); 
00317                 $this->tpl->parseCurrentBlock();
00318         }
00319 
00323         function add()
00324         {
00325                 //$this->setObjectData();
00326                 $this->writePostData();
00327 
00328                 if (!$this->checkInput())
00329                 {
00330                         ilUtil::sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00331                 }
00332                 else
00333                 {
00334                         // add an answer template
00335                         $nrOfAnswers = $_POST["nrOfAnswers"];
00336                         switch ($nrOfAnswers)
00337                         {
00338                                 case "tf":
00339                                         // add a true/false answer template
00340                                         $this->object->addAnswer(
00341                                                 $this->lng->txt("true"),
00342                                                 0,
00343                                                 0,
00344                                                 count($this->object->answers),
00345                                                 ""
00346                                         );
00347                                         $this->object->addAnswer(
00348                                                 $this->lng->txt("false"),
00349                                                 0,
00350                                                 0,
00351                                                 count($this->object->answers),
00352                                                 ""
00353                                         );
00354                                         break;
00355                                 case "yn":
00356                                         // add a yes/no answer template
00357                                         $this->object->addAnswer(
00358                                                 $this->lng->txt("yes"),
00359                                                 0,
00360                                                 0,
00361                                                 count($this->object->answers),
00362                                                 ""
00363                                         );
00364                                         $this->object->addAnswer(
00365                                                 $this->lng->txt("no"),
00366                                                 0,
00367                                                 0,
00368                                                 count($this->object->answers),
00369                                                 ""
00370                                         );
00371                                         break;
00372                                 default:
00373                                         for ($i = 0; $i < $nrOfAnswers; $i++)
00374                                         {
00375                                                 $this->object->addAnswer(
00376                                                         $this->lng->txt(""),
00377                                                         0,
00378                                                         0,
00379                                                         count($this->object->answers),
00380                                                         ""
00381                                                 );
00382                                         }
00383                                         break;
00384                         }
00385                 }
00386 
00387                 $this->editQuestion();
00388         }
00389 
00393         function deleteAnswer()
00394         {
00395                 $this->writePostData();
00396                 $answers = $_POST["chb_answers"];
00397                 if (is_array($answers))
00398                 {
00399                         arsort($answers);
00400                         foreach ($answers as $answer)
00401                         {
00402                                 $this->object->deleteAnswer($answer);
00403                         }
00404                 }
00405                 $this->editQuestion();
00406         }
00407 
00411         function checkInput()
00412         {
00413                 $cmd = $this->ctrl->getCmd();
00414 
00415                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00416                 {
00417 //echo "<br>checkInput1:FALSE";
00418                         return false;
00419                 }
00420                 foreach ($_POST as $key => $value)
00421                 {
00422                         if (preg_match("/answer_(\d+)/", $key, $matches))
00423                         {
00424                                 if (strlen($value) == 0)
00425                                 {
00426                                         if (strlen($_POST["uploaded_image_".$matches[1]]) == 0)
00427                                         {
00428                                                 return false;
00429                                         }
00430                                 }
00431                         }
00432                 }
00433 
00434                 return true;
00435         }
00436 
00445         function writePostData()
00446         {
00447                 $result = 0;
00448                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00449                 {
00450                         $result = 1;
00451                 }
00452 
00453                 if (($result) and (($_POST["cmd"]["add"]) or ($_POST["cmd"]["add_tf"]) or ($_POST["cmd"]["add_yn"])))
00454                 {
00455                         // You cannot add answers before you enter the required data
00456                         ilUtil::sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00457                         $_POST["cmd"]["add"] = "";
00458                         $_POST["cmd"]["add_yn"] = "";
00459                         $_POST["cmd"]["add_tf"] = "";
00460                 }
00461 
00462                 // Check the creation of new answer text fields
00463                 if ($_POST["cmd"]["add"] or $_POST["cmd"]["add_yn"] or $_POST["cmd"]["add_tf"])
00464                 {
00465                         foreach ($_POST as $key => $value)
00466                         {
00467                                 if (preg_match("/answer_(\d+)/", $key, $matches))
00468                                 {
00469                                         if (!$value)
00470                                         {
00471                                                 $_POST["cmd"]["add"] = "";
00472                                                 $_POST["cmd"]["add_yn"] = "";
00473                                                 $_POST["cmd"]["add_tf"] = "";
00474                                                 ilUtil::sendInfo($this->lng->txt("fill_out_all_answer_fields"));
00475                                         }
00476                                 }
00477                         }
00478                 }
00479 
00480                 $this->object->setTitle(ilUtil::stripSlashes($_POST["title"]));
00481                 $this->object->setAuthor(ilUtil::stripSlashes($_POST["author"]));
00482                 $this->object->setComment(ilUtil::stripSlashes($_POST["comment"]));
00483                 include_once "./classes/class.ilObjAdvancedEditing.php";
00484                 $questiontext = ilUtil::stripSlashes($_POST["question"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00485                 $this->object->setQuestion($questiontext);
00486                 $this->object->setSuggestedSolution($_POST["solution_hint"], 0);
00487                 $this->object->setShuffle($_POST["shuffle"]);
00488                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00489                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00490 
00491                 $saved = $this->writeOtherPostData($result);
00492 
00493                 // Delete all existing answers and create new answers from the form data
00494                 $this->object->flushAnswers();
00495                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00496                 // Add all answers from the form into the object
00497                 foreach ($_POST as $key => $value)
00498                 {
00499                         if (preg_match("/answer_(\d+)/", $key, $matches))
00500                         {
00501                                 $answer_image = $_POST["uploaded_image_".$matches[1]];
00502                                 if ($graphical_answer_setting == 1)
00503                                 {
00504                                         foreach ($_FILES as $key2 => $value2)
00505                                         {
00506                                                 if (preg_match("/image_(\d+)/", $key2, $matches2))
00507                                                 {
00508                                                         if ($matches[1] == $matches2[1])
00509                                                         {
00510                                                                 if ($value2["tmp_name"])
00511                                                                 {
00512                                                                         // upload the image
00513                                                                         if ($this->object->getId() <= 0)
00514                                                                         {
00515                                                                                 $this->object->saveToDb();
00516                                                                                 $saved = true;
00517                                                                                 ilUtil::sendInfo($this->lng->txt("question_saved_for_upload"));
00518                                                                         }
00519                                                                         $value2['name'] = $this->object->createNewImageFileName($value2['name']);
00520                                                                         $upload_result = $this->object->setImageFile($value2['name'], $value2['tmp_name']);
00521                                                                         switch ($upload_result)
00522                                                                         {
00523                                                                                 case 0:
00524                                                                                         $_POST["image_".$matches2[1]] = $value2['name'];
00525                                                                                         $answer_image = $value2['name'];
00526                                                                                         break;
00527                                                                                 case 1:
00528                                                                                         $this->setErrorMessage($this->getErrorMessage() . $this->lng->txt("error_image_upload_wrong_format") . "<br />");
00529                                                                                         break;
00530                                                                                 case 2:
00531                                                                                         $this->setErrorMessage($this->getErrorMessage() . $this->lng->txt("error_image_upload_copy_file") . "<br />");
00532                                                                                         break;
00533                                                                         }
00534                                                                 }
00535                                                         }
00536                                                 }
00537                                         }
00538                                 }
00539                                 $points = $_POST["points_$matches[1]"];
00540                                 $answertext = ilUtil::stripSlashes($_POST["$key"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00541                                 $this->object->addAnswer(
00542                                         $answertext,
00543                                         ilUtil::stripSlashes($points),
00544                                         0,
00545                                         ilUtil::stripSlashes($matches[1]),
00546                                         $answer_image
00547                                         );
00548                         }
00549                 }
00550                 if ($this->object->getMaximumPoints() < 0)
00551                 {
00552                         $result = 1;
00553                         $this->setErrorMessage($this->lng->txt("enter_enough_positive_points"));
00554                 }
00555 
00556                 // Set the question id from a hidden form parameter
00557                 if ($_POST["multiple_choice_id"] > 0)
00558                 {
00559                         $this->object->setId($_POST["multiple_choice_id"]);
00560                 }
00561 
00562                 if ($saved)
00563                 {
00564                         // If the question was saved automatically before an upload, we have to make
00565                         // sure, that the state after the upload is saved. Otherwise the user could be
00566                         // irritated, if he presses cancel, because he only has the question state before
00567                         // the upload process.
00568                         $this->object->saveToDb();
00569                         $this->ctrl->setParameter($this, "q_id", $this->object->getId());
00570                 }
00571 
00572                 return $result;
00573         }
00574 
00575         function outQuestionForTest($formaction, $active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE, $show_feedback = FALSE)
00576         {
00577                 $test_output = $this->getTestOutput($active_id, $pass, $is_postponed, $use_post_solutions, $show_feedback); 
00578                 $this->tpl->setVariable("QUESTION_OUTPUT", $test_output);
00579                 $this->tpl->setVariable("FORMACTION", $formaction);
00580         }
00581 
00582         function getSolutionOutput($active_id, $pass = NULL, $graphicalOutput = FALSE, $result_output = FALSE, $show_question_only = TRUE, $show_feedback = FALSE)
00583         {
00584                 $keys = $this->getChoiceKeys();
00585 
00586                 // get the solution of the user for the active pass or from the last pass if allowed
00587                 $user_solution = "";
00588                 if ($active_id)
00589                 {
00590                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00591                         foreach ($solutions as $idx => $solution_value)
00592                         {
00593                                 $user_solution = $solution_value["value1"];
00594                         }
00595                 }
00596                 else
00597                 {
00598                         $found_index = -1;
00599                         $max_points = 0;
00600                         foreach ($this->object->answers as $index => $answer)
00601                         {
00602                                 if ($answer->getPoints() > $max_points)
00603                                 {
00604                                         $max_points = $answer->getPoints();
00605                                         $found_index = $index;
00606                                 }
00607                         }
00608                         $user_solution = $found_index;
00609                 }
00610                 // generate the question output
00611                 include_once "./classes/class.ilTemplate.php";
00612                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output_solution.html", TRUE, TRUE, "Modules/TestQuestionPool");
00613                 $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
00614                 foreach ($keys as $answer_id)
00615                 {
00616                         $answer = $this->object->answers[$answer_id];
00617                         if ($active_id)
00618                         {
00619                                 if ($graphicalOutput)
00620                                 {
00621                                         // output of ok/not ok icons for user entered solutions
00622                                         $ok = FALSE;
00623                                         if (strcmp($user_solution, $answer_id) == 0)
00624                                         {
00625                                                 if ($answer->getPoints() == $this->object->getMaximumPoints())
00626                                                 {
00627                                                         $ok = TRUE;
00628                                                 }
00629                                                 else
00630                                                 {
00631                                                         $ok = FALSE;
00632                                                 }
00633                                                 if ($ok)
00634                                                 {
00635                                                         $template->setCurrentBlock("icon_ok");
00636                                                         $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.gif"));
00637                                                         $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
00638                                                         $template->parseCurrentBlock();
00639                                                 }
00640                                                 else
00641                                                 {
00642                                                         $template->setCurrentBlock("icon_not_ok");
00643                                                         if ($answer->getPoints() > 0)
00644                                                         {
00645                                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_mostly_ok.gif"));
00646                                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_not_correct_but_positive"));
00647                                                         }
00648                                                         else
00649                                                         {
00650                                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00651                                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00652                                                         }
00653                                                         $template->parseCurrentBlock();
00654                                                 }
00655                                         }
00656                                         if (strlen($user_solution) == 0)
00657                                         {
00658                                                 $template->setCurrentBlock("icon_not_ok");
00659                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00660                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00661                                                 $template->parseCurrentBlock();
00662                                         }
00663                                 }
00664                         }
00665                         if (strlen($answer->getImage()))
00666                         {
00667                                 $template->setCurrentBlock("answer_image");
00668                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00669                                 $alt = $answer->getImage();
00670                                 if (strlen($answer->getAnswertext()))
00671                                 {
00672                                         $alt = $answer->getAnswertext();
00673                                 }
00674                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00675                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00676                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00677                                 $template->parseCurrentBlock();
00678                         }
00679                         if ($show_feedback)
00680                         {
00681                                 if (strcmp($user_solution, $answer_id) == 0)
00682                                 {
00683                                         $fb = $this->object->getFeedbackSingleAnswer($answer_id);
00684                                         if (strlen($fb))
00685                                         {
00686                                                 $template->setCurrentBlock("feedback");
00687                                                 $template->setVariable("FEEDBACK", $fb);
00688                                                 $template->parseCurrentBlock();
00689                                         }
00690                                 }
00691                         }
00692                         $template->setCurrentBlock("answer_row");
00693                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00694                         if (strcmp($user_solution, $answer_id) == 0)
00695                         {
00696                                 $template->setVariable("SOLUTION_IMAGE", ilUtil::getHtmlPath(ilUtil::getImagePath("radiobutton_checked.gif")));
00697                                 $template->setVariable("SOLUTION_ALT", $this->lng->txt("checked"));
00698                         }
00699                         else
00700                         {
00701                                 $template->setVariable("SOLUTION_IMAGE", ilUtil::getHtmlPath(ilUtil::getImagePath("radiobutton_unchecked.gif")));
00702                                 $template->setVariable("SOLUTION_ALT", $this->lng->txt("unchecked"));
00703                         }
00704                         if ($result_output)
00705                         {
00706                                 $points = $this->object->answers[$answer_id]->getPoints();
00707                                 $resulttext = ($points == 1) ? "(%s " . $this->lng->txt("point") . ")" : "(%s " . $this->lng->txt("points") . ")"; 
00708                                 $template->setVariable("RESULT_OUTPUT", sprintf($resulttext, $points));
00709                         }
00710                         $template->parseCurrentBlock();
00711                 }
00712                 $questiontext = $this->object->getQuestion();
00713                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00714                 $questionoutput = $template->get();
00715                 $feedback = ($show_feedback) ? $this->getAnswerFeedbackOutput($active_id, $pass) : "";
00716                 if (strlen($feedback)) $solutiontemplate->setVariable("FEEDBACK", $feedback);
00717                 $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
00718 
00719                 $solutionoutput = $solutiontemplate->get(); 
00720                 if (!$show_question_only)
00721                 {
00722                         // get page object output
00723                         $pageoutput = $this->getILIASPage();
00724                         $solutionoutput = "<div class=\"ilias_content\">" . preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", "</div><div class=\"ilc_Question\">" . $solutionoutput . "</div><div class=\"ilias_content\">", $pageoutput) . "</div>";
00725                 }
00726                 return $solutionoutput;
00727         }
00728         
00729         function getPreview($show_question_only = FALSE)
00730         {
00731                 $keys = $this->getChoiceKeys();
00732                 
00733                 // generate the question output
00734                 include_once "./classes/class.ilTemplate.php";
00735                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
00736                 foreach ($keys as $answer_id)
00737                 {
00738                         $answer = $this->object->answers[$answer_id];
00739                         if (strlen($answer->getImage()))
00740                         {
00741                                 $template->setCurrentBlock("answer_image");
00742                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00743                                 $alt = $answer->getImage();
00744                                 if (strlen($answer->getAnswertext()))
00745                                 {
00746                                         $alt = $answer->getAnswertext();
00747                                 }
00748                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00749                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00750                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00751                                 $template->parseCurrentBlock();
00752                         }
00753                         $template->setCurrentBlock("answer_row");
00754                         $template->setVariable("ANSWER_ID", $answer_id);
00755                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00756                         $template->parseCurrentBlock();
00757                 }
00758                 $questiontext = $this->object->getQuestion();
00759                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00760                 $questionoutput = $template->get();
00761                 if (!$show_question_only)
00762                 {
00763                         // get page object output
00764                         $pageoutput = $this->getILIASPage();
00765                         $questionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $questionoutput, $pageoutput);
00766                 }
00767                 else
00768                 {
00769                         $questionoutput = preg_replace("/<div[^>]*?>(.*)<\/div>/is", "\\1", $questionoutput);
00770                 }
00771 
00772                 return $questionoutput;
00773         }
00774 
00775         function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE, $show_feedback = FALSE)
00776         {
00777                 // get page object output
00778                 $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id);
00779 
00780                 $keys = $this->getChoiceKeys();
00781                 
00782                 // get the solution of the user for the active pass or from the last pass if allowed
00783                 $user_solution = "";
00784                 if ($active_id)
00785                 {
00786                         $solutions = NULL;
00787                         include_once "./Modules/Test/classes/class.ilObjTest.php";
00788                         if (!ilObjTest::_getUsePreviousAnswers($active_id, true))
00789                         {
00790                                 if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
00791                         }
00792                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00793                         foreach ($solutions as $idx => $solution_value)
00794                         {
00795                                 $user_solution = $solution_value["value1"];
00796                         }
00797                 }
00798                 
00799                 // generate the question output
00800                 include_once "./classes/class.ilTemplate.php";
00801                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
00802                 foreach ($keys as $answer_id)
00803                 {
00804                         $answer = $this->object->answers[$answer_id];
00805                         if (strlen($answer->getImage()))
00806                         {
00807                                 $template->setCurrentBlock("answer_image");
00808                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00809                                 $alt = $answer->getImage();
00810                                 if (strlen($answer->getAnswertext()))
00811                                 {
00812                                         $alt = $answer->getAnswertext();
00813                                 }
00814                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00815                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00816                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00817                                 $template->parseCurrentBlock();
00818                         }
00819                         if ($show_feedback)
00820                         {
00821                                 if (strcmp($user_solution, $answer_id) == 0)
00822                                 {
00823                                         $feedback = $this->object->getFeedbackSingleAnswer($answer_id);
00824                                         if (strlen($feedback))
00825                                         {
00826                                                 $template->setCurrentBlock("feedback");
00827                                                 $template->setVariable("FEEDBACK", $this->object->prepareTextareaOutput($feedback, TRUE));
00828                                                 $template->parseCurrentBlock();
00829                                         }
00830                                 }
00831                         }
00832                         $template->setCurrentBlock("answer_row");
00833                         $template->setVariable("ANSWER_ID", $answer_id);
00834                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00835                         if (strcmp($user_solution, $answer_id) == 0)
00836                         {
00837                                 $template->setVariable("CHECKED_ANSWER", " checked=\"checked\"");
00838                         }
00839                         $template->parseCurrentBlock();
00840                 }
00841                 $questiontext = $this->object->getQuestion();
00842                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00843                 $questionoutput = $template->get();
00844                 $questionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $questionoutput, $pageoutput);
00845                 return $questionoutput;
00846         }
00847 
00848         function addSuggestedSolution()
00849         {
00850                 $_SESSION["subquestion_index"] = 0;
00851                 if ($_POST["cmd"]["addSuggestedSolution"])
00852                 {
00853                         if ($this->writePostData())
00854                         {
00855                                 ilUtil::sendInfo($this->getErrorMessage());
00856                                 $this->editQuestion();
00857                                 return;
00858                         }
00859                         if (!$this->checkInput())
00860                         {
00861                                 ilUtil::sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00862                                 $this->editQuestion();
00863                                 return;
00864                         }
00865                 }
00866                 $this->object->saveToDb();
00867                 $this->ctrl->setParameter($this, "q_id", $this->object->getId());
00868                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00869                 $this->getQuestionTemplate();
00870                 parent::addSuggestedSolution();
00871         }
00872 
00876         function upload()
00877         {
00878                 $this->writePostData();
00879                 $this->editQuestion();
00880         }
00881         
00882         function deleteImage()
00883         {
00884                 if ($this->writePostData())
00885                 {
00886                         ilUtil::sendInfo($this->getErrorMessage());
00887                         $this->editQuestion();
00888                         return;
00889                 }
00890                 $imageorder = "";
00891                 foreach ($_POST["cmd"] as $key => $value)
00892                 {
00893                         if (preg_match("/deleteImage_(\d+)/", $key, $matches))
00894                         {
00895                                 $imageorder = $matches[1];
00896                         }
00897                 }
00898                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00899                 {
00900                         $answer = $this->object->getAnswer($i);
00901                         if ($answer->getOrder() == $imageorder)
00902                         {
00903                                 $this->object->deleteImage($answer->getImage());
00904                                 $this->object->answers[$i]->setImage("");
00905                         }
00906                 }
00907                 $this->editQuestion();
00908         }
00909 
00910         function editMode()
00911         {
00912                 global $ilUser;
00913                 
00914                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00915                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00916                 $this->writePostData();
00917                 $this->editQuestion();
00918         }
00919 
00927         function saveFeedback()
00928         {
00929                 include_once "./classes/class.ilObjAdvancedEditing.php";
00930                 $this->object->saveFeedbackGeneric(0, ilUtil::stripSlashes($_POST["feedback_incomplete"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment")));
00931                 $this->object->saveFeedbackGeneric(1, ilUtil::stripSlashes($_POST["feedback_complete"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment")));
00932                 foreach ($this->object->answers as $index => $answer)
00933                 {
00934                         $this->object->saveFeedbackSingleAnswer($index, ilUtil::stripSlashes($_POST["feedback_answer_$index"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment")));
00935                 }
00936                 $this->object->cleanupMediaObjectUsage();
00937                 parent::saveFeedback();
00938         }
00939 
00947         function feedback()
00948         {
00949                 $this->tpl->addBlockFile("ADM_CONTENT", "feedback", "tpl.il_as_qpl_mc_sr_feedback.html", "Modules/TestQuestionPool");
00950                 foreach ($this->object->answers as $index => $answer)
00951                 {
00952                         $this->tpl->setCurrentBlock("feedback_answer");
00953                         $this->tpl->setVariable("FEEDBACK_TEXT_ANSWER", $this->lng->txt("feedback"));
00954                         $this->tpl->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00955                         $this->tpl->setVariable("ANSWER_ID", $index);
00956                         $this->tpl->setVariable("VALUE_FEEDBACK_ANSWER", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($this->object->getFeedbackSingleAnswer($index)), FALSE));
00957                         $this->tpl->parseCurrentBlock();
00958                 }
00959                 $this->tpl->setVariable("FEEDBACK_TEXT", $this->lng->txt("feedback"));
00960                 $this->tpl->setVariable("FEEDBACK_COMPLETE", $this->lng->txt("feedback_complete_solution"));
00961                 $this->tpl->setVariable("VALUE_FEEDBACK_COMPLETE", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($this->object->getFeedbackGeneric(1)), FALSE));
00962                 $this->tpl->setVariable("FEEDBACK_INCOMPLETE", $this->lng->txt("feedback_incomplete_solution"));
00963                 $this->tpl->setVariable("VALUE_FEEDBACK_INCOMPLETE", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($this->object->getFeedbackGeneric(0)), FALSE));
00964                 $this->tpl->setVariable("FEEDBACK_ANSWERS", $this->lng->txt("feedback_answers"));
00965                 $this->tpl->setVariable("SAVE", $this->lng->txt("save"));
00966                 $this->tpl->setVariable("FORMACTION", $this->ctrl->getFormAction($this));
00967 
00968                 include_once "./Services/RTE/classes/class.ilRTE.php";
00969                 $rtestring = ilRTE::_getRTEClassname();
00970                 include_once "./Services/RTE/classes/class.$rtestring.php";
00971                 $rte = new $rtestring();
00972                 $rte->addPlugin("latex");
00973                 $rte->addButton("latex"); $rte->addButton("pastelatex");
00974                 include_once "./classes/class.ilObject.php";
00975                 $obj_id = $_GET["q_id"];
00976                 $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
00977                 $rte->addRTESupport($obj_id, $obj_type, "assessment");
00978         }
00979 
00987         function setQuestionTabs()
00988         {
00989                 global $rbacsystem, $ilTabs;
00990                 
00991                 $this->ctrl->setParameterByClass("ilpageobjectgui", "q_id", $_GET["q_id"]);
00992                 include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
00993                 $q_type = $this->object->getQuestionType();
00994 
00995                 if (strlen($q_type))
00996                 {
00997                         $classname = $q_type . "GUI";
00998                         $this->ctrl->setParameterByClass(strtolower($classname), "sel_question_types", $q_type);
00999                         $this->ctrl->setParameterByClass(strtolower($classname), "q_id", $_GET["q_id"]);
01000                 }
01001 
01002                 if ($_GET["q_id"])
01003                 {
01004                         if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
01005                         {
01006                                 // edit page
01007                                 $ilTabs->addTarget("edit_content",
01008                                         $this->ctrl->getLinkTargetByClass("ilPageObjectGUI", "view"),
01009                                         array("view", "insert", "exec_pg"),
01010                                         "", "", $force_active);
01011                         }
01012         
01013                         // edit page
01014                         $ilTabs->addTarget("preview",
01015                                 $this->ctrl->getLinkTargetByClass("ilPageObjectGUI", "preview"),
01016                                 array("preview"),
01017                                 "ilPageObjectGUI", "", $force_active);
01018                 }
01019 
01020                 $force_active = false;
01021                 if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
01022                 {
01023                         $url = "";
01024                         if ($classname) $url = $this->ctrl->getLinkTargetByClass($classname, "editQuestion");
01025                         $commands = $_POST["cmd"];
01026                         if (is_array($commands))
01027                         {
01028                                 foreach ($commands as $key => $value)
01029                                 {
01030                                         if (preg_match("/^deleteImage_.*/", $key, $matches) || 
01031                                                 preg_match("/^upload_.*/", $key, $matches)
01032                                                 )
01033                                         {
01034                                                 $force_active = true;
01035                                         }
01036                                 }
01037                         }
01038                         // edit question properties
01039                         $ilTabs->addTarget("edit_properties",
01040                                 $url,
01041                                 array("editQuestion", "save", "cancel", "addSuggestedSolution",
01042                                         "cancelExplorer", "linkChilds", "removeSuggestedSolution",
01043                                         "toggleGraphicalAnswers", "setMediaMode", "uploadingImage", "add", "editMode", "deleteAnswer", "addYesNo", "addTrueFalse", 
01044                                         "saveEdit"),
01045                                 $classname, "", $force_active);
01046                 }
01047 
01048                 if ($_GET["q_id"])
01049                 {
01050                         $ilTabs->addTarget("feedback",
01051                                 $this->ctrl->getLinkTargetByClass($classname, "feedback"),
01052                                 array("feedback", "saveFeedback"),
01053                                 $classname, "");
01054                 }
01055                 
01056                 // Assessment of questions sub menu entry
01057                 if ($_GET["q_id"])
01058                 {
01059                         $ilTabs->addTarget("statistics",
01060                                 $this->ctrl->getLinkTargetByClass($classname, "assessment"),
01061                                 array("assessment"),
01062                                 $classname, "");
01063                 }
01064                 
01065                 if (($_GET["calling_test"] > 0) || ($_GET["test_ref_id"] > 0))
01066                 {
01067                         $ref_id = $_GET["calling_test"];
01068                         if (strlen($ref_id) == 0) $ref_id = $_GET["test_ref_id"];
01069                         $ilTabs->setBackTarget($this->lng->txt("backtocallingtest"), "ilias.php?baseClass=ilObjTestGUI&cmd=questions&ref_id=$ref_id");
01070                 }
01071                 else
01072                 {
01073                         $ilTabs->setBackTarget($this->lng->txt("qpl"), $this->ctrl->getLinkTargetByClass("ilobjquestionpoolgui", "questions"));
01074                 }
01075         }
01076 
01077         /*
01078          * Create the key index numbers for the array of choices
01079          * 
01080          * @return array
01081          */
01082         function getChoiceKeys()
01083         {
01084                 if (strcmp($_GET["activecommand"], "directfeedback") == 0)
01085                 {
01086                         if (is_array($_SESSION["choicekeys"])) $this->choiceKeys = $_SESSION["choicekeys"];
01087                 }
01088                 if (!is_array($this->choiceKeys))
01089                 {
01090                         $this->choiceKeys = array_keys($this->object->answers);
01091                         if ($this->object->getShuffle())
01092                         {
01093                                 $this->choiceKeys = $this->object->pcArrayShuffle($this->choiceKeys);
01094                         }
01095                 }
01096                 $_SESSION["choicekeys"] = $this->choiceKeys;
01097                 return $this->choiceKeys;
01098         }
01099 }
01100 ?>