ILIAS Release_3_7_x_branch .rev 46817: assessment/classes/class.assMultipleChoiceGUI.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/class.assQuestionGUI.php";
00025 include_once "./assessment/classes/inc.AssessmentConstants.php";
00026 
00038 class assMultipleChoiceGUI extends assQuestionGUI
00039 {
00048         function assMultipleChoiceGUI(
00049                         $id = -1
00050         )
00051         {
00052                 $this->assQuestionGUI();
00053                 include_once "./assessment/classes/class.assMultipleChoice.php";
00054                 $this->object = new assMultipleChoice();
00055                 if ($id >= 0)
00056                 {
00057                         $this->object->loadFromDb($id);
00058                 }
00059         }
00060 
00061         function getCommand($cmd)
00062         {
00063                 if (substr($cmd, 0, 6) == "upload")
00064                 {
00065                         $cmd = "upload";
00066                 }
00067                 if (substr($cmd, 0, 11) == "deleteImage")
00068                 {
00069                         $cmd = "deleteImage";
00070                 }
00071                 return $cmd;
00072         }
00073 
00074 
00083         function getQuestionType()
00084         {
00085                 return "assMultipleChoice";
00086         }
00087 
00095         function editQuestion()
00096         {
00097                 //$this->tpl->setVariable("HEADER", $this->object->getTitle());
00098                 $javascript = "<script type=\"text/javascript\">function initialSelect() {\n%s\n}</script>";
00099                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00100                 $multiline_answers = $this->object->getMultilineAnswerSetting();
00101                 if ($graphical_answer_setting == 0)
00102                 {
00103                         for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00104                         {
00105                                 $answer = $this->object->getAnswer($i);
00106                                 if (strlen($answer->getImage())) $graphical_answer_setting = 1;
00107                         }
00108                 }
00109                 $this->getQuestionTemplate();
00110                 $this->tpl->addBlockFile("QUESTION_DATA", "question_data", "tpl.il_as_qpl_mc_mr.html", true);
00111 
00112                 if ($this->object->getAnswerCount() > 0)
00113                 {
00114                         $this->tpl->setCurrentBlock("answersheading");
00115                         $this->tpl->setVariable("TEXT_POINTS_CHECKED", $this->lng->txt("points_checked"));
00116                         $this->tpl->setVariable("TEXT_POINTS_UNCHECKED", $this->lng->txt("points_unchecked"));
00117                         $this->tpl->setVariable("TEXT_ANSWER_TEXT", $this->lng->txt("answer_text"));
00118                         $this->tpl->parseCurrentBlock();
00119                         $this->tpl->setCurrentBlock("selectall");
00120                         $this->tpl->setVariable("SELECT_ALL", $this->lng->txt("select_all"));
00121                         $this->tpl->parseCurrentBlock();
00122                         $this->tpl->setCurrentBlock("existinganswers");
00123                         $this->tpl->setVariable("DELETE", $this->lng->txt("delete"));
00124                         $this->tpl->setVariable("MOVE", $this->lng->txt("move"));
00125                         $this->tpl->setVariable("ARROW", "<img src=\"" . ilUtil::getImagePath("arrow_downright.gif") . "\" alt=\"".$this->lng->txt("arrow_downright")."\">");
00126                         $this->tpl->parseCurrentBlock();
00127                 }
00128                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00129                 {
00130                         $answer = $this->object->getAnswer($i);
00131                         if ($graphical_answer_setting == 1)
00132                         {
00133                                 $imagefilename = $this->object->getImagePath() . $answer->getImage();
00134                                 if (!@file_exists($imagefilename))
00135                                 {
00136                                         $answer->setImage("");
00137                                 }
00138                                 if (strlen($answer->getImage()))
00139                                 {
00140                                         $imagepath = $this->object->getImagePathWeb() . $answer->getImage();
00141                                         $this->tpl->setCurrentBlock("graphical_answer_image");
00142                                         $this->tpl->setVariable("IMAGE_FILE", $imagepath);
00143                                         if (strlen($answer->getAnswertext()))
00144                                         {
00145                                                 $this->tpl->setVariable("IMAGE_ALT", ilUtil::prepareFormOutput($answer->getAnswertext()));
00146                                         }
00147                                         else
00148                                         {
00149                                                 $this->tpl->setVariable("IMAGE_ALT", $this->lng->txt("image"));
00150                                         }
00151                                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00152                                         $this->tpl->setVariable("DELETE_IMAGE", $this->lng->txt("delete_image"));
00153                                         $this->tpl->parseCurrentBlock();
00154                                 }
00155                                 $this->tpl->setCurrentBlock("graphical_answer");
00156                                 $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00157                                 $this->tpl->setVariable("UPLOAD_IMAGE", $this->lng->txt("upload_image"));
00158                                 $this->tpl->setVariable("VALUE_IMAGE", $answer->getImage());
00159                                 $this->tpl->parseCurrentBlock();
00160                         }
00161                         if ($multiline_answers)
00162                         {
00163                                 $this->tpl->setCurrentBlock("show_textarea");
00164                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00165                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00166                                 $this->tpl->parseCurrentBlock();
00167                         }
00168                         else
00169                         {
00170                                 $this->tpl->setCurrentBlock("show_textinput");
00171                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00172                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00173                                 $this->tpl->parseCurrentBlock();
00174                         }
00175                         $this->tpl->setCurrentBlock("answers");
00176                         $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_POINTS_CHECKED", $answer->getPoints());
00177                         $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_POINTS_UNCHECKED", $answer->getPointsUnchecked());
00178                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00179                         $this->tpl->parseCurrentBlock();
00180                 }
00181 
00182                 // call to other question data i.e. estimated working time block
00183                 $this->outOtherQuestionData();
00184 
00185                 $internallinks = array(
00186                         "lm" => $this->lng->txt("obj_lm"),
00187                         "st" => $this->lng->txt("obj_st"),
00188                         "pg" => $this->lng->txt("obj_pg"),
00189                         "glo" => $this->lng->txt("glossary_term")
00190                 );
00191                 foreach ($internallinks as $key => $value)
00192                 {
00193                         $this->tpl->setCurrentBlock("internallink");
00194                         $this->tpl->setVariable("TYPE_INTERNAL_LINK", $key);
00195                         $this->tpl->setVariable("TEXT_INTERNAL_LINK", $value);
00196                         $this->tpl->parseCurrentBlock();
00197                 }
00198                 
00199                 $this->tpl->setCurrentBlock("HeadContent");
00200 
00201                 if ($this->object->getAnswerCount() == 0)
00202                 {
00203                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00204                 }
00205                 else
00206                 {
00207                         switch ($this->ctrl->getCmd())
00208                         {
00209                                 case "add":
00210                                         $nrOfAnswers = $_POST["nrOfAnswers"];
00211                                         if ((strcmp($nrOfAnswers, "yn") == 0) || (strcmp($nrOfAnswers, "tf") == 0)) $nrOfAnswers = 2;
00212                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - $nrOfAnswers).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - $nrOfAnswers)."').scrollIntoView(\"true\");"));
00213                                         break;
00214                                 case "deleteAnswer":
00215                                         if ($this->object->getAnswerCount() == 0)
00216                                         {
00217                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00218                                         }
00219                                         else
00220                                         {
00221                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - 1).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - 1)."').scrollIntoView(\"true\");"));
00222                                         }
00223                                         break;
00224                                 default:
00225                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00226                                         break;
00227                         }
00228                 }
00229                 $this->tpl->parseCurrentBlock();
00230                 
00231                 for ($i = 1; $i < 10; $i++)
00232                 {
00233                         $this->tpl->setCurrentBlock("numbers");
00234                         $this->tpl->setVariable("VALUE_NUMBER", $i);
00235                         if ($i == 1)
00236                         {
00237                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answer"));
00238                         }
00239                         else
00240                         {
00241                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answers"));
00242                         }
00243                         $this->tpl->parseCurrentBlock();
00244                 }
00245                 
00246                 $this->tpl->setCurrentBlock("question_data");
00247                 $this->tpl->setVariable("TEXT_TITLE", $this->lng->txt("title"));
00248                 $this->tpl->setVariable("TEXT_AUTHOR", $this->lng->txt("author"));
00249                 $this->tpl->setVariable("TEXT_COMMENT", $this->lng->txt("description"));
00250                 $this->tpl->setVariable("TEXT_QUESTION", $this->lng->txt("question"));
00251                 $this->tpl->setVariable("MULTIPLE_CHOICE_ID", $this->object->getId());
00252                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_TITLE", ilUtil::prepareFormOutput($this->object->getTitle()));
00253                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_COMMENT", ilUtil::prepareFormOutput($this->object->getComment()));
00254                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_AUTHOR", ilUtil::prepareFormOutput($this->object->getAuthor()));
00255                 $this->tpl->setVariable("TEXT_GRAPHICAL_ANSWERS", $this->lng->txt("graphical_answers"));
00256                 $this->tpl->setVariable("TEXT_HIDE_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_hide"));
00257                 $this->tpl->setVariable("TEXT_SHOW_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_show"));
00258                 if ($this->object->getGraphicalAnswerSetting() == 1)
00259                 {
00260                         $this->tpl->setVariable("SELECTED_SHOW_GRAPHICAL_ANSWER_SUPPORT", " selected=\"selected\"");
00261                 }
00262                 if ($multiline_answers)
00263                 {
00264                         $this->tpl->setVariable("SELECTED_SHOW_MULTILINE_ANSWERS", " selected=\"selected\"");
00265                 }
00266                 $this->tpl->setVariable("TEXT_HIDE_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_hide"));
00267                 $this->tpl->setVariable("TEXT_SHOW_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_show"));
00268                 $this->tpl->setVariable("SET_EDIT_MODE", $this->lng->txt("set_edit_mode"));
00269                 $questiontext = $this->object->getQuestion();
00270                 $this->tpl->setVariable("VALUE_QUESTION", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($questiontext)));
00271                 $this->tpl->setVariable("VALUE_ADD_ANSWER", $this->lng->txt("add"));
00272                 $this->tpl->setVariable("TEXT_SHUFFLE_ANSWERS", $this->lng->txt("shuffle_answers"));
00273                 $this->tpl->setVariable("TXT_YES", $this->lng->txt("yes"));
00274                 $this->tpl->setVariable("TXT_NO", $this->lng->txt("no"));
00275                 if ($this->object->getShuffle())
00276                 {
00277                         $this->tpl->setVariable("SELECTED_YES", " selected=\"selected\"");
00278                 }
00279                 else
00280                 {
00281                         $this->tpl->setVariable("SELECTED_NO", " selected=\"selected\"");
00282                 }
00283                 $this->tpl->setVariable("TEXT_SOLUTION_HINT", $this->lng->txt("solution_hint"));
00284                 if (count($this->object->suggested_solutions))
00285                 {
00286                         $solution_array = $this->object->getSuggestedSolution(0);
00287                         include_once "./assessment/classes/class.assQuestion.php";
00288                         $href = assQuestion::_getInternalLinkHref($solution_array["internal_link"]);
00289                         $this->tpl->setVariable("TEXT_VALUE_SOLUTION_HINT", " <a href=\"$href\" target=\"content\">" . $this->lng->txt("solution_hint"). "</a> ");
00290                         $this->tpl->setVariable("BUTTON_REMOVE_SOLUTION", $this->lng->txt("remove"));
00291                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("change"));
00292                         $this->tpl->setVariable("VALUE_SOLUTION_HINT", $solution_array["internal_link"]);
00293                 }
00294                 else
00295                 {
00296                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("add"));
00297                 }
00298                 $this->tpl->setVariable("SAVE",$this->lng->txt("save"));
00299                 $this->tpl->setVariable("SAVE_EDIT", $this->lng->txt("save_edit"));
00300                 $this->tpl->setVariable("TXT_REQUIRED_FLD", $this->lng->txt("required_field"));
00301                 $this->tpl->setVariable("CANCEL", $this->lng->txt("cancel"));
00302                 $this->ctrl->setParameter($this, "sel_question_types", "assMultipleChoice");
00303                 $this->tpl->setVariable("ACTION_MULTIPLE_CHOICE_TEST", $this->ctrl->getFormAction($this));
00304                 $this->tpl->setVariable("TEXT_QUESTION_TYPE", $this->lng->txt("assMultipleChoice"));
00305                 $this->tpl->parseCurrentBlock();
00306 
00307                 include_once "./Services/RTE/classes/class.ilRTE.php";
00308                 $rtestring = ilRTE::_getRTEClassname();
00309                 include_once "./Services/RTE/classes/class.$rtestring.php";
00310                 $rte = new $rtestring();
00311                 $rte->addPlugin("latex");
00312                 $rte->addButton("latex");
00313                 include_once "./classes/class.ilObject.php";
00314                 $obj_id = $_GET["q_id"];
00315                 $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
00316                 $rte->addRTESupport($obj_id, $obj_type, "assessment");
00317                 $this->tpl->setCurrentBlock("adm_content");
00318                 $this->tpl->setVariable("BODY_ATTRIBUTES", " onload=\"initialSelect();\""); 
00319                 $this->tpl->parseCurrentBlock();
00320         }
00321 
00325         function add()
00326         {
00327                 //$this->setObjectData();
00328                 $this->writePostData();
00329 
00330                 if (!$this->checkInput())
00331                 {
00332                         sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00333                 }
00334                 else
00335                 {
00336                         // add an answer template
00337                         $nrOfAnswers = $_POST["nrOfAnswers"];
00338                         switch ($nrOfAnswers)
00339                         {
00340                                 case "tf":
00341                                         // add a true/false answer template
00342                                         $this->object->addAnswer(
00343                                                 $this->lng->txt("true"),
00344                                                 0,
00345                                                 0,
00346                                                 count($this->object->answers),
00347                                                 ""
00348                                         );
00349                                         $this->object->addAnswer(
00350                                                 $this->lng->txt("false"),
00351                                                 0,
00352                                                 0,
00353                                                 count($this->object->answers),
00354                                                 ""
00355                                         );
00356                                         break;
00357                                 case "yn":
00358                                         // add a yes/no answer template
00359                                         $this->object->addAnswer(
00360                                                 $this->lng->txt("yes"),
00361                                                 0,
00362                                                 0,
00363                                                 count($this->object->answers),
00364                                                 ""
00365                                         );
00366                                         $this->object->addAnswer(
00367                                                 $this->lng->txt("no"),
00368                                                 0,
00369                                                 0,
00370                                                 count($this->object->answers),
00371                                                 ""
00372                                         );
00373                                         break;
00374                                 default:
00375                                         for ($i = 0; $i < $nrOfAnswers; $i++)
00376                                         {
00377                                                 $this->object->addAnswer(
00378                                                         $this->lng->txt(""),
00379                                                         0,
00380                                                         0,
00381                                                         count($this->object->answers),
00382                                                         ""
00383                                                 );
00384                                         }
00385                                         break;
00386                         }
00387                 }
00388 
00389                 $this->editQuestion();
00390         }
00391 
00395         function deleteAnswer()
00396         {
00397                 $this->writePostData();
00398                 $answers = $_POST["chb_answers"];
00399                 if (is_array($answers))
00400                 {
00401                         arsort($answers);
00402                         foreach ($answers as $answer)
00403                         {
00404                                 $this->object->deleteAnswer($answer);
00405                         }
00406                 }
00407                 $this->editQuestion();
00408         }
00409 
00413         function checkInput()
00414         {
00415                 $cmd = $this->ctrl->getCmd();
00416 
00417                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00418                 {
00419 //echo "<br>checkInput1:FALSE";
00420                         return false;
00421                 }
00422                 foreach ($_POST as $key => $value)
00423                 {
00424                         if (preg_match("/answer_(\d+)/", $key, $matches))
00425                         {
00426                                 if (strlen($value) == 0)
00427                                 {
00428                                         if (strlen($_POST["uploaded_image_".$matches[1]]) == 0)
00429                                         {
00430                                                 return false;
00431                                         }
00432                                 }
00433                         }
00434                 }
00435 
00436                 return true;
00437         }
00438 
00447         function writePostData()
00448         {
00449 //echo "here!"; exit;
00450 //echo "<br>assMultipleChoiceGUI->writePostData()";
00451                 $result = 0;
00452                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00453                 {
00454                         $result = 1;
00455                 }
00456 
00457                 if (($result) and (($_POST["cmd"]["add"]) or ($_POST["cmd"]["add_tf"]) or ($_POST["cmd"]["add_yn"])))
00458                 {
00459                         // You cannot add answers before you enter the required data
00460                         sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00461                         $_POST["cmd"]["add"] = "";
00462                         $_POST["cmd"]["add_yn"] = "";
00463                         $_POST["cmd"]["add_tf"] = "";
00464                 }
00465 
00466                 // Check the creation of new answer text fields
00467                 if ($_POST["cmd"]["add"] or $_POST["cmd"]["add_yn"] or $_POST["cmd"]["add_tf"])
00468                 {
00469                         foreach ($_POST as $key => $value)
00470                         {
00471                                 if (preg_match("/answer_(\d+)/", $key, $matches))
00472                                 {
00473                                         if (!$value)
00474                                         {
00475                                                 $_POST["cmd"]["add"] = "";
00476                                                 $_POST["cmd"]["add_yn"] = "";
00477                                                 $_POST["cmd"]["add_tf"] = "";
00478                                                 sendInfo($this->lng->txt("fill_out_all_answer_fields"));
00479                                         }
00480                                 }
00481                         }
00482                 }
00483 
00484                 $this->object->setTitle(ilUtil::stripSlashes($_POST["title"]));
00485                 $this->object->setAuthor(ilUtil::stripSlashes($_POST["author"]));
00486                 $this->object->setComment(ilUtil::stripSlashes($_POST["comment"]));
00487                 include_once "./classes/class.ilObjAdvancedEditing.php";
00488                 $questiontext = ilUtil::stripSlashes($_POST["question"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00489                 $this->object->setQuestion($questiontext);
00490                 $this->object->setSuggestedSolution($_POST["solution_hint"], 0);
00491                 $this->object->setShuffle($_POST["shuffle"]);
00492 
00493                 $saved = $this->writeOtherPostData($result);
00494                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00495                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00496 
00497                 // Delete all existing answers and create new answers from the form data
00498                 $this->object->flushAnswers();
00499                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00500                 // Add all answers from the form into the object
00501                 foreach ($_POST as $key => $value)
00502                 {
00503                         if (preg_match("/answer_(\d+)/", $key, $matches))
00504                         {
00505                                 $answer_image = $_POST["uploaded_image_".$matches[1]];
00506                                 if ($graphical_answer_setting == 1)
00507                                 {
00508                                         foreach ($_FILES as $key2 => $value2)
00509                                         {
00510                                                 if (preg_match("/image_(\d+)/", $key2, $matches2))
00511                                                 {
00512                                                         if ($matches[1] == $matches2[1])
00513                                                         {
00514                                                                 if ($value2["tmp_name"])
00515                                                                 {
00516                                                                         // upload the image
00517                                                                         if ($this->object->getId() <= 0)
00518                                                                         {
00519                                                                                 $this->object->saveToDb();
00520                                                                                 $saved = true;
00521                                                                                 $this->error .= $this->lng->txt("question_saved_for_upload") . "<br />";
00522                                                                         }
00523                                                                         $value2['name'] = $this->object->createNewImageFileName($value2['name']);
00524                                                                         $upload_result = $this->object->setImageFile($value2['name'], $value2['tmp_name']);
00525                                                                         switch ($upload_result)
00526                                                                         {
00527                                                                                 case 0:
00528                                                                                         $_POST["image_".$matches2[1]] = $value2['name'];
00529                                                                                         $answer_image = $value2['name'];
00530                                                                                         break;
00531                                                                                 case 1:
00532                                                                                         $this->error .= $this->lng->txt("error_image_upload_wrong_format") . "<br />";
00533                                                                                         break;
00534                                                                                 case 2:
00535                                                                                         $this->error .= $this->lng->txt("error_image_upload_copy_file") . "<br />";
00536                                                                                         break;
00537                                                                         }
00538                                                                 }
00539                                                         }
00540                                                 }
00541                                         }
00542                                 }
00543                                 $points = $_POST["points_checked_$matches[1]"];
00544                                 $points_unchecked = $_POST["points_unchecked_$matches[1]"];
00545                                 $answertext = ilUtil::stripSlashes($_POST["$key"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00546                                 $this->object->addAnswer(
00547                                         $answertext,
00548                                         ilUtil::stripSlashes($points),
00549                                         ilUtil::stripSlashes($points_unchecked),
00550                                         ilUtil::stripSlashes($matches[1]),
00551                                         $answer_image
00552                                 );
00553                         }
00554                 }
00555 
00556                 if ($this->object->getMaximumPoints() < 0)
00557                 {
00558                         $result = 1;
00559                         $this->setErrorMessage($this->lng->txt("enter_enough_positive_points"));
00560                 }
00561                 
00562                 // Set the question id from a hidden form parameter
00563                 if ($_POST["multiple_choice_id"] > 0)
00564                 {
00565                         $this->object->setId($_POST["multiple_choice_id"]);
00566                 }
00567                 
00568                 if ($saved)
00569                 {
00570                         // If the question was saved automatically before an upload, we have to make
00571                         // sure, that the state after the upload is saved. Otherwise the user could be
00572                         // irritated, if he presses cancel, because he only has the question state before
00573                         // the upload process.
00574                         $this->object->saveToDb();
00575                         $_GET["q_id"] = $this->object->getId();
00576                 }
00577 
00578                 return $result;
00579         }
00580         
00581         function outQuestionForTest($formaction, $active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00582         {
00583                 $test_output = $this->getTestOutput($active_id, $pass, $is_postponed, $use_post_solutions); 
00584                 $this->tpl->setVariable("QUESTION_OUTPUT", $test_output);
00585                 $this->tpl->setVariable("FORMACTION", $formaction);
00586         }
00587 
00588         function getSolutionOutput($active_id, $pass = NULL, $graphicalOutput = FALSE, $result_output = FALSE, $show_question_only = TRUE)
00589         {
00590                 // shuffle output
00591                 $keys = array_keys($this->object->answers);
00592 
00593                 // get the solution of the user for the active pass or from the last pass if allowed
00594                 $user_solution = array();
00595                 if ($active_id)
00596                 {
00597                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00598                         foreach ($solutions as $idx => $solution_value)
00599                         {
00600                                 array_push($user_solution, $solution_value["value1"]);
00601                         }
00602                 }
00603                 else
00604                 {
00605                         // take the correct solution instead of the user solution
00606                         foreach ($this->object->answers as $index => $answer)
00607                         {
00608                                 $points_checked = $answer->getPointsChecked();
00609                                 $points_unchecked = $answer->getPointsUnchecked();
00610                                 if ($points_checked > $points_unchecked)
00611                                 {
00612                                         if ($points_checked > 0)
00613                                         {
00614                                                 array_push($user_solution, $index);
00615                                         }
00616                                 }
00617                         }
00618                 }
00619                 
00620                 // generate the question output
00621                 include_once "./classes/class.ilTemplate.php";
00622                 $template = new ilTemplate("tpl.il_as_qpl_mc_mr_output_solution.html", TRUE, TRUE, TRUE);
00623                 $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html", TRUE, TRUE, TRUE);
00624                 foreach ($keys as $answer_id)
00625                 {
00626                         $answer = $this->object->answers[$answer_id];
00627                         if ($graphicalOutput)
00628                         {
00629                                 // output of ok/not ok icons for user entered solutions
00630                                 $ok = FALSE;
00631                                 $checked = FALSE;
00632                                 foreach ($user_solution as $mc_solution)
00633                                 {
00634                                         if (strcmp($mc_solution, $answer_id) == 0)
00635                                         {
00636                                                 $checked = TRUE;
00637                                         }
00638                                 }
00639                                 if ($checked)
00640                                 {
00641                                         if ($answer->getPointsChecked() > $answer->getPointsUnchecked())
00642                                         {
00643                                                 $ok = TRUE;
00644                                         }
00645                                         else
00646                                         {
00647                                                 $ok = FALSE;
00648                                         }
00649                                 }
00650                                 else
00651                                 {
00652                                         if ($answer->getPointsChecked() > $answer->getPointsUnchecked())
00653                                         {
00654                                                 $ok = FALSE;
00655                                         }
00656                                         else
00657                                         {
00658                                                 $ok = TRUE;
00659                                         }
00660                                 }
00661                                 if ($ok)
00662                                 {
00663                                         $template->setCurrentBlock("icon_ok");
00664                                         $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.gif"));
00665                                         $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
00666                                         $template->parseCurrentBlock();
00667                                 }
00668                                 else
00669                                 {
00670                                         $template->setCurrentBlock("icon_ok");
00671                                         $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00672                                         $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00673                                         $template->parseCurrentBlock();
00674                                 }
00675                         }
00676                         if (strlen($answer->getImage()))
00677                         {
00678                                 $template->setCurrentBlock("answer_image");
00679                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00680                                 $alt = $answer->getImage();
00681                                 if (strlen($answer->getAnswertext()))
00682                                 {
00683                                         $alt = $answer->getAnswertext();
00684                                 }
00685                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00686                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00687                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00688                                 $template->parseCurrentBlock();
00689                         }
00690                         $template->setCurrentBlock("answer_row");
00691                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00692                         $checked = FALSE;
00693                         foreach ($user_solution as $mc_solution)
00694                         {
00695                                 if (strcmp($mc_solution, $answer_id) == 0)
00696                                 {
00697                                         $template->setVariable("SOLUTION_IMAGE", ilUtil::getImagePath("checkbox_checked.gif"));
00698                                         $template->setVariable("SOLUTION_ALT", $this->lng->txt("checked"));
00699                                         $checked = TRUE;
00700                                 }
00701                         }
00702                         if ($result_output)
00703                         {
00704                                 $pointschecked = $this->object->answers[$answer_id]->getPointsChecked();
00705                                 $pointsunchecked = $this->object->answers[$answer_id]->getPointsUnchecked();
00706                                 $resulttextchecked = ($pointschecked == 1) || ($pointschecked == -1) ? "%s " . $this->lng->txt("point") : "%s " . $this->lng->txt("points");
00707                                 $resulttextunchecked = ($pointsunchecked == 1) || ($pointsunchecked == -1) ? "%s " . $this->lng->txt("point") : "%s " . $this->lng->txt("points"); 
00708                                 $template->setVariable("RESULT_OUTPUT", sprintf("(" . $this->lng->txt("checkbox_checked") . " = $resulttextchecked, " . $this->lng->txt("checkbox_unchecked") . " = $resulttextunchecked)", $pointschecked, $pointsunchecked));
00709                         }
00710                         if (!$checked)
00711                         {
00712                                 $template->setVariable("SOLUTION_IMAGE", ilUtil::getImagePath("checkbox_unchecked.gif"));
00713                                 $template->setVariable("SOLUTION_ALT", $this->lng->txt("unchecked"));
00714                         }
00715                         $template->parseCurrentBlock();
00716                 }
00717                 $questiontext = $this->object->getQuestion();
00718                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00719                 $questionoutput = $template->get();
00720                 $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
00721 
00722                 $solutionoutput = $solutiontemplate->get(); 
00723                 if (!$show_question_only)
00724                 {
00725                         // get page object output
00726                         $pageoutput = $this->getILIASPage();
00727                         $solutionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $solutionoutput, $pageoutput);
00728                 }
00729                 return $solutionoutput;
00730         }
00731         
00732         function getPreview()
00733         {
00734                 // shuffle output
00735                 $keys = array_keys($this->object->answers);
00736                 if ($this->object->getShuffle())
00737                 {
00738                         $keys = $this->object->pcArrayShuffle($keys);
00739                 }
00740 
00741                 // generate the question output
00742                 include_once "./classes/class.ilTemplate.php";
00743                 $template = new ilTemplate("tpl.il_as_qpl_mc_mr_output.html", TRUE, TRUE, TRUE);
00744                 foreach ($keys as $answer_id)
00745                 {
00746                         $answer = $this->object->answers[$answer_id];
00747                         if (strlen($answer->getImage()))
00748                         {
00749                                 $template->setCurrentBlock("answer_image");
00750                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00751                                 $alt = $answer->getImage();
00752                                 if (strlen($answer->getAnswertext()))
00753                                 {
00754                                         $alt = $answer->getAnswertext();
00755                                 }
00756                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00757                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00758                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00759                                 $template->parseCurrentBlock();
00760                         }
00761                         $template->setCurrentBlock("answer_row");
00762                         $template->setVariable("ANSWER_ID", $answer_id);
00763                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00764                         $template->parseCurrentBlock();
00765                 }
00766                 $questiontext = $this->object->getQuestion();
00767                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00768                 $questionoutput = $template->get();
00769                 $questionoutput = preg_replace("/<div[^>]*?>(.*)<\/div>/is", "\\1", $questionoutput);
00770                 return $questionoutput;
00771         }
00772 
00773         function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00774         {
00775                 // shuffle output
00776                 $keys = array_keys($this->object->answers);
00777                 if ($this->object->getShuffle())
00778                 {
00779                         $keys = $this->object->pcArrayShuffle($keys);
00780                 }
00781 
00782                 // get page object output
00783                 $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id);
00784 
00785                 // get the solution of the user for the active pass or from the last pass if allowed
00786                 $user_solution = array();
00787                 if ($active_id)
00788                 {
00789                         $solutions = NULL;
00790                         include_once "./assessment/classes/class.ilObjTest.php";
00791                         if (ilObjTest::_getHidePreviousResults($active_id, true))
00792                         {
00793                                 if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
00794                         }
00795                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00796                         foreach ($solutions as $idx => $solution_value)
00797                         {
00798                                 array_push($user_solution, $solution_value["value1"]);
00799                         }
00800                 }
00801                 
00802                 // generate the question output
00803                 include_once "./classes/class.ilTemplate.php";
00804                 $template = new ilTemplate("tpl.il_as_qpl_mc_mr_output.html", TRUE, TRUE, TRUE);
00805                 foreach ($keys as $answer_id)
00806                 {
00807                         $answer = $this->object->answers[$answer_id];
00808                         if (strlen($answer->getImage()))
00809                         {
00810                                 $template->setCurrentBlock("answer_image");
00811                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00812                                 $alt = $answer->getImage();
00813                                 if (strlen($answer->getAnswertext()))
00814                                 {
00815                                         $alt = $answer->getAnswertext();
00816                                 }
00817                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00818                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00819                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00820                                 $template->parseCurrentBlock();
00821                         }
00822                         $template->setCurrentBlock("answer_row");
00823                         $template->setVariable("ANSWER_ID", $answer_id);
00824                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00825                         foreach ($user_solution as $mc_solution)
00826                         {
00827                                 if (strcmp($mc_solution, $answer_id) == 0)
00828                                 {
00829                                         $template->setVariable("CHECKED_ANSWER", " checked=\"checked\"");
00830                                 }
00831                         }
00832                         $template->parseCurrentBlock();
00833                 }
00834                 $questiontext = $this->object->getQuestion();
00835                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00836                 $questionoutput = $template->get();
00837                 $questionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $questionoutput, $pageoutput);
00838                 return $questionoutput;
00839         }
00840 
00841         function addSuggestedSolution()
00842         {
00843                 $_SESSION["subquestion_index"] = 0;
00844                 if ($_POST["cmd"]["addSuggestedSolution"])
00845                 {
00846                         if ($this->writePostData())
00847                         {
00848                                 sendInfo($this->getErrorMessage());
00849                                 $this->editQuestion();
00850                                 return;
00851                         }
00852                         if (!$this->checkInput())
00853                         {
00854                                 sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00855                                 $this->editQuestion();
00856                                 return;
00857                         }
00858                 }
00859                 $this->object->saveToDb();
00860                 $_GET["q_id"] = $this->object->getId();
00861                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00862                 $this->getQuestionTemplate();
00863                 parent::addSuggestedSolution();
00864         }
00865         
00869         function upload()
00870         {
00871                 $this->writePostData();
00872                 $this->editQuestion();
00873         }
00874         
00875         function deleteImage()
00876         {
00877                 if ($this->writePostData())
00878                 {
00879                         sendInfo($this->getErrorMessage());
00880                         $this->editQuestion();
00881                         return;
00882                 }
00883                 $imageorder = "";
00884                 foreach ($_POST["cmd"] as $key => $value)
00885                 {
00886                         if (preg_match("/deleteImage_(\d+)/", $key, $matches))
00887                         {
00888                                 $imageorder = $matches[1];
00889                         }
00890                 }
00891                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00892                 {
00893                         $answer = $this->object->getAnswer($i);
00894                         if ($answer->getOrder() == $imageorder)
00895                         {
00896                                 $this->object->deleteImage($answer->getImage());
00897                                 $this->object->answers[$i]->setImage("");
00898                         }
00899                 }
00900                 $this->editQuestion();
00901         }
00902 
00903         function editMode()
00904         {
00905                 global $ilUser;
00906                 
00907                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00908                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00909                 $this->writePostData();
00910                 $this->editQuestion();
00911         }
00912         
00913 }
00914 ?>