ILIAS Release_3_7_x_branch .rev 46817: assessment/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 "./assessment/classes/class.assQuestionGUI.php";
00025 include_once "./assessment/classes/inc.AssessmentConstants.php";
00026 
00038 class assSingleChoiceGUI extends assQuestionGUI
00039 {
00048         function assSingleChoiceGUI(
00049                         $id = -1
00050         )
00051         {
00052                 $this->assQuestionGUI();
00053                 include_once "./assessment/classes/class.assSingleChoice.php";
00054                 $this->object = new assSingleChoice();
00055                 if ($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 "assSingleChoice";
00086         }
00087 
00095         function editQuestion()
00096         {
00097                 $javascript = "<script type=\"text/javascript\">function initialSelect() {\n%s\n}</script>";
00098                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00099                 $multiline_answers = $this->object->getMultilineAnswerSetting();
00100                 if ($graphical_answer_setting == 0)
00101                 {
00102                         for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00103                         {
00104                                 $answer = $this->object->getAnswer($i);
00105                                 if (strlen($answer->getImage())) $graphical_answer_setting = 1;
00106                         }
00107                 }
00108                 $this->object->setGraphicalAnswerSetting($graphical_answer_setting);
00109                 $this->getQuestionTemplate();
00110                 $this->tpl->addBlockFile("QUESTION_DATA", "question_data", "tpl.il_as_qpl_mc_sr.html", true);
00111                 // output of existing single response answers
00112                 if ($this->object->getAnswerCount() > 0)
00113                 {
00114                         $this->tpl->setCurrentBlock("answersheading");
00115                         $this->tpl->setVariable("TEXT_POINTS", $this->lng->txt("points"));
00116                         $this->tpl->setVariable("TEXT_ANSWER_TEXT", $this->lng->txt("answer_text"));
00117                         $this->tpl->parseCurrentBlock();
00118                         $this->tpl->setCurrentBlock("selectall");
00119                         $this->tpl->setVariable("SELECT_ALL", $this->lng->txt("select_all"));
00120                         $this->tpl->parseCurrentBlock();
00121                         $this->tpl->setCurrentBlock("existinganswers");
00122                         $this->tpl->setVariable("DELETE", $this->lng->txt("delete"));
00123                         $this->tpl->setVariable("MOVE", $this->lng->txt("move"));
00124                         $this->tpl->setVariable("ARROW", "<img src=\"" . ilUtil::getImagePath("arrow_downright.gif") . "\" alt=\"".$this->lng->txt("arrow_downright")."\">");
00125                         $this->tpl->parseCurrentBlock();
00126                 }
00127                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00128                 {
00129                         $answer = $this->object->getAnswer($i);
00130                         if ($graphical_answer_setting == 1)
00131                         {
00132                                 $imagefilename = $this->object->getImagePath() . $answer->getImage();
00133                                 if (!@file_exists($imagefilename))
00134                                 {
00135                                         $answer->setImage("");
00136                                 }
00137                                 if (strlen($answer->getImage()))
00138                                 {
00139                                         $imagepath = $this->object->getImagePathWeb() . $answer->getImage();
00140                                         $this->tpl->setCurrentBlock("graphical_answer_image");
00141                                         $this->tpl->setVariable("IMAGE_FILE", $imagepath);
00142                                         if (strlen($answer->getAnswertext()))
00143                                         {
00144                                                 $this->tpl->setVariable("IMAGE_ALT", ilUtil::prepareFormOutput($answer->getAnswertext()));
00145                                         }
00146                                         else
00147                                         {
00148                                                 $this->tpl->setVariable("IMAGE_ALT", $this->lng->txt("image"));
00149                                         }
00150                                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00151                                         $this->tpl->setVariable("DELETE_IMAGE", $this->lng->txt("delete_image"));
00152                                         $this->tpl->parseCurrentBlock();
00153                                 }
00154                                 $this->tpl->setCurrentBlock("graphical_answer");
00155                                 $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00156                                 $this->tpl->setVariable("UPLOAD_IMAGE", $this->lng->txt("upload_image"));
00157                                 $this->tpl->setVariable("VALUE_IMAGE", $answer->getImage());
00158                                 $this->tpl->parseCurrentBlock();
00159                         }
00160                         if ($multiline_answers)
00161                         {
00162                                 $this->tpl->setCurrentBlock("show_textarea");
00163                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00164                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00165                                 $this->tpl->parseCurrentBlock();
00166                         }
00167                         else
00168                         {
00169                                 $this->tpl->setCurrentBlock("show_textinput");
00170                                 $this->tpl->setVariable("ANSWER_ANSWER_ORDER", $answer->getOrder());
00171                                 $this->tpl->setVariable("VALUE_ANSWER", ilUtil::prepareFormOutput($answer->getAnswertext()));
00172                                 $this->tpl->parseCurrentBlock();
00173                         }
00174                         $this->tpl->setCurrentBlock("answers");
00175                         $this->tpl->setVariable("ANSWER_ORDER", $answer->getOrder());
00176                         $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_POINTS", $answer->getPoints());
00177                         $this->tpl->setVariable("VALUE_TRUE", $this->lng->txt("true"));
00178                         $this->tpl->parseCurrentBlock();
00179                 }
00180                 // call to other question data i.e. estimated working time block
00181                 $this->outOtherQuestionData();
00182 
00183                 $internallinks = array(
00184                         "lm" => $this->lng->txt("obj_lm"),
00185                         "st" => $this->lng->txt("obj_st"),
00186                         "pg" => $this->lng->txt("obj_pg"),
00187                         "glo" => $this->lng->txt("glossary_term")
00188                 );
00189                 foreach ($internallinks as $key => $value)
00190                 {
00191                         $this->tpl->setCurrentBlock("internallink");
00192                         $this->tpl->setVariable("TYPE_INTERNAL_LINK", $key);
00193                         $this->tpl->setVariable("TEXT_INTERNAL_LINK", $value);
00194                         $this->tpl->parseCurrentBlock();
00195                 }
00196                 
00197                 $this->tpl->setCurrentBlock("HeadContent");
00198                 if ($this->object->getAnswerCount() == 0)
00199                 {
00200                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00201                 }
00202                 else
00203                 {
00204                         switch ($this->ctrl->getCmd())
00205                         {
00206                                 case "add":
00207                                         $nrOfAnswers = $_POST["nrOfAnswers"];
00208                                         if ((strcmp($nrOfAnswers, "yn") == 0) || (strcmp($nrOfAnswers, "tf") == 0)) $nrOfAnswers = 2;
00209                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - $nrOfAnswers).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - $nrOfAnswers)."').scrollIntoView(\"true\");"));
00210                                         break;
00211                                 case "deleteAnswer":
00212                                         if ($this->object->getAnswerCount() == 0)
00213                                         {
00214                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00215                                         }
00216                                         else
00217                                         {
00218                                                 $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.answer_".($this->object->getAnswerCount() - 1).".focus(); document.getElementById('answer_".($this->object->getAnswerCount() - 1)."').scrollIntoView(\"true\");"));
00219                                         }
00220                                         break;
00221                                 default:
00222                                         $this->tpl->setVariable("CONTENT_BLOCK", sprintf($javascript, "document.frm_multiple_choice.title.focus();"));
00223                                         break;
00224                         }
00225                 }
00226                 $this->tpl->parseCurrentBlock();
00227 
00228                 for ($i = 1; $i < 10; $i++)
00229                 {
00230                         $this->tpl->setCurrentBlock("numbers");
00231                         $this->tpl->setVariable("VALUE_NUMBER", $i);
00232                         if ($i == 1)
00233                         {
00234                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answer"));
00235                         }
00236                         else
00237                         {
00238                                 $this->tpl->setVariable("TEXT_NUMBER", $i . " " . $this->lng->txt("answers"));
00239                         }
00240                         $this->tpl->parseCurrentBlock();
00241                 }
00242                 // add yes/no answers
00243                 $this->tpl->setCurrentBlock("numbers");
00244                 $this->tpl->setVariable("VALUE_NUMBER", "yn");
00245                 $this->tpl->setVariable("TEXT_NUMBER", $this->lng->txt("add_answer_yn"));
00246                 $this->tpl->parseCurrentBlock();
00247                 // add true/false answers
00248                 $this->tpl->setCurrentBlock("numbers");
00249                 $this->tpl->setVariable("VALUE_NUMBER", "tf");
00250                 $this->tpl->setVariable("TEXT_NUMBER", $this->lng->txt("add_answer_tf"));
00251                 $this->tpl->parseCurrentBlock();
00252 
00253                 $this->tpl->setCurrentBlock("question_data");
00254                 $this->tpl->setVariable("MULTIPLE_CHOICE_ID", $this->object->getId());
00255                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_TITLE", ilUtil::prepareFormOutput($this->object->getTitle()));
00256                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_COMMENT", ilUtil::prepareFormOutput($this->object->getComment()));
00257                 $this->tpl->setVariable("VALUE_MULTIPLE_CHOICE_AUTHOR", ilUtil::prepareFormOutput($this->object->getAuthor()));
00258                 $questiontext = $this->object->getQuestion();
00259                 $this->tpl->setVariable("VALUE_QUESTION", $this->object->prepareTextareaOutput($questiontext));
00260                 $this->tpl->setVariable("VALUE_ADD_ANSWER", $this->lng->txt("add"));
00261                 $this->tpl->setVariable("TEXT_GRAPHICAL_ANSWERS", $this->lng->txt("graphical_answers"));
00262                 $this->tpl->setVariable("TEXT_HIDE_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_hide"));
00263                 $this->tpl->setVariable("TEXT_SHOW_GRAPHICAL_ANSWER_SUPPORT", $this->lng->txt("graphical_answers_show"));
00264                 if ($this->object->getGraphicalAnswerSetting() == 1)
00265                 {
00266                         $this->tpl->setVariable("SELECTED_SHOW_GRAPHICAL_ANSWER_SUPPORT", " selected=\"selected\"");
00267                 }
00268                 if ($multiline_answers)
00269                 {
00270                         $this->tpl->setVariable("SELECTED_SHOW_MULTILINE_ANSWERS", " selected=\"selected\"");
00271                 }
00272                 $this->tpl->setVariable("TEXT_HIDE_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_hide"));
00273                 $this->tpl->setVariable("TEXT_SHOW_MULTILINE_ANSWERS", $this->lng->txt("multiline_answers_show"));
00274                 $this->tpl->setVariable("SET_EDIT_MODE", $this->lng->txt("set_edit_mode"));
00275                 $this->tpl->setVariable("TEXT_TITLE", $this->lng->txt("title"));
00276                 $this->tpl->setVariable("TEXT_AUTHOR", $this->lng->txt("author"));
00277                 $this->tpl->setVariable("TEXT_COMMENT", $this->lng->txt("description"));
00278                 $this->tpl->setVariable("TEXT_QUESTION", $this->lng->txt("question"));
00279                 $this->tpl->setVariable("TEXT_SHUFFLE_ANSWERS", $this->lng->txt("shuffle_answers"));
00280                 $this->tpl->setVariable("TXT_YES", $this->lng->txt("yes"));
00281                 $this->tpl->setVariable("TXT_NO", $this->lng->txt("no"));
00282                 if ($this->object->getShuffle())
00283                 {
00284                         $this->tpl->setVariable("SELECTED_YES", " selected=\"selected\"");
00285                 }
00286                 else
00287                 {
00288                         $this->tpl->setVariable("SELECTED_NO", " selected=\"selected\"");
00289                 }
00290                 $this->tpl->setVariable("TEXT_SOLUTION_HINT", $this->lng->txt("solution_hint"));
00291                 if (count($this->object->suggested_solutions))
00292                 {
00293                         $solution_array = $this->object->getSuggestedSolution(0);
00294                         include_once "./assessment/classes/class.assQuestion.php";
00295                         $href = assQuestion::_getInternalLinkHref($solution_array["internal_link"]);
00296                         $this->tpl->setVariable("TEXT_VALUE_SOLUTION_HINT", " <a href=\"$href\" target=\"content\">" . $this->lng->txt("solution_hint"). "</a> ");
00297                         $this->tpl->setVariable("BUTTON_REMOVE_SOLUTION", $this->lng->txt("remove"));
00298                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("change"));
00299                         $this->tpl->setVariable("VALUE_SOLUTION_HINT", $solution_array["internal_link"]);
00300                 }
00301                 else
00302                 {
00303                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("add"));
00304                 }
00305                 $this->tpl->setVariable("SAVE",$this->lng->txt("save"));
00306                 $this->tpl->setVariable("SAVE_EDIT", $this->lng->txt("save_edit"));
00307                 $this->tpl->setVariable("CANCEL",$this->lng->txt("cancel"));
00308                 $this->tpl->setVariable("TXT_REQUIRED_FLD", $this->lng->txt("required_field"));
00309                 $this->ctrl->setParameter($this, "sel_question_types", "assSingleChoice");
00310                 $this->tpl->setVariable("ACTION_MULTIPLE_CHOICE_TEST", $this->ctrl->getFormAction($this));
00311                 $this->tpl->setVariable("TEXT_QUESTION_TYPE", $this->lng->txt("assSingleChoice"));
00312 
00313                 $this->tpl->parseCurrentBlock();
00314                 include_once "./Services/RTE/classes/class.ilRTE.php";
00315                 $rtestring = ilRTE::_getRTEClassname();
00316                 include_once "./Services/RTE/classes/class.$rtestring.php";
00317                 $rte = new $rtestring();
00318                 $rte->addPlugin("latex");
00319                 $rte->addButton("latex");
00320                 include_once "./classes/class.ilObject.php";
00321                 $obj_id = $_GET["q_id"];
00322                 $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
00323                 $rte->addRTESupport($obj_id, $obj_type, "assessment");
00324 
00325                 $this->tpl->setCurrentBlock("adm_content");
00326                 $this->tpl->setVariable("BODY_ATTRIBUTES", " onload=\"initialSelect();\""); 
00327                 $this->tpl->parseCurrentBlock();
00328         }
00329 
00333         function add()
00334         {
00335                 //$this->setObjectData();
00336                 $this->writePostData();
00337 
00338                 if (!$this->checkInput())
00339                 {
00340                         sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00341                 }
00342                 else
00343                 {
00344                         // add an answer template
00345                         $nrOfAnswers = $_POST["nrOfAnswers"];
00346                         switch ($nrOfAnswers)
00347                         {
00348                                 case "tf":
00349                                         // add a true/false answer template
00350                                         $this->object->addAnswer(
00351                                                 $this->lng->txt("true"),
00352                                                 0,
00353                                                 0,
00354                                                 count($this->object->answers),
00355                                                 ""
00356                                         );
00357                                         $this->object->addAnswer(
00358                                                 $this->lng->txt("false"),
00359                                                 0,
00360                                                 0,
00361                                                 count($this->object->answers),
00362                                                 ""
00363                                         );
00364                                         break;
00365                                 case "yn":
00366                                         // add a yes/no answer template
00367                                         $this->object->addAnswer(
00368                                                 $this->lng->txt("yes"),
00369                                                 0,
00370                                                 0,
00371                                                 count($this->object->answers),
00372                                                 ""
00373                                         );
00374                                         $this->object->addAnswer(
00375                                                 $this->lng->txt("no"),
00376                                                 0,
00377                                                 0,
00378                                                 count($this->object->answers),
00379                                                 ""
00380                                         );
00381                                         break;
00382                                 default:
00383                                         for ($i = 0; $i < $nrOfAnswers; $i++)
00384                                         {
00385                                                 $this->object->addAnswer(
00386                                                         $this->lng->txt(""),
00387                                                         0,
00388                                                         0,
00389                                                         count($this->object->answers),
00390                                                         ""
00391                                                 );
00392                                         }
00393                                         break;
00394                         }
00395                 }
00396 
00397                 $this->editQuestion();
00398         }
00399 
00403         function deleteAnswer()
00404         {
00405                 $this->writePostData();
00406                 $answers = $_POST["chb_answers"];
00407                 if (is_array($answers))
00408                 {
00409                         arsort($answers);
00410                         foreach ($answers as $answer)
00411                         {
00412                                 $this->object->deleteAnswer($answer);
00413                         }
00414                 }
00415                 $this->editQuestion();
00416         }
00417 
00421         function checkInput()
00422         {
00423                 $cmd = $this->ctrl->getCmd();
00424 
00425                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00426                 {
00427 //echo "<br>checkInput1:FALSE";
00428                         return false;
00429                 }
00430                 foreach ($_POST as $key => $value)
00431                 {
00432                         if (preg_match("/answer_(\d+)/", $key, $matches))
00433                         {
00434                                 if (strlen($value) == 0)
00435                                 {
00436                                         if (strlen($_POST["uploaded_image_".$matches[1]]) == 0)
00437                                         {
00438                                                 return false;
00439                                         }
00440                                 }
00441                         }
00442                 }
00443 
00444                 return true;
00445         }
00446 
00455         function writePostData()
00456         {
00457                 $result = 0;
00458                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00459                 {
00460                         $result = 1;
00461                 }
00462 
00463                 if (($result) and (($_POST["cmd"]["add"]) or ($_POST["cmd"]["add_tf"]) or ($_POST["cmd"]["add_yn"])))
00464                 {
00465                         // You cannot add answers before you enter the required data
00466                         sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00467                         $_POST["cmd"]["add"] = "";
00468                         $_POST["cmd"]["add_yn"] = "";
00469                         $_POST["cmd"]["add_tf"] = "";
00470                 }
00471 
00472                 // Check the creation of new answer text fields
00473                 if ($_POST["cmd"]["add"] or $_POST["cmd"]["add_yn"] or $_POST["cmd"]["add_tf"])
00474                 {
00475                         foreach ($_POST as $key => $value)
00476                         {
00477                                 if (preg_match("/answer_(\d+)/", $key, $matches))
00478                                 {
00479                                         if (!$value)
00480                                         {
00481                                                 $_POST["cmd"]["add"] = "";
00482                                                 $_POST["cmd"]["add_yn"] = "";
00483                                                 $_POST["cmd"]["add_tf"] = "";
00484                                                 sendInfo($this->lng->txt("fill_out_all_answer_fields"));
00485                                         }
00486                                 }
00487                         }
00488                 }
00489 
00490                 $this->object->setTitle(ilUtil::stripSlashes($_POST["title"]));
00491                 $this->object->setAuthor(ilUtil::stripSlashes($_POST["author"]));
00492                 $this->object->setComment(ilUtil::stripSlashes($_POST["comment"]));
00493                 include_once "./classes/class.ilObjAdvancedEditing.php";
00494                 $questiontext = ilUtil::stripSlashes($_POST["question"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00495                 $this->object->setQuestion($questiontext);
00496                 $this->object->setSuggestedSolution($_POST["solution_hint"], 0);
00497                 $this->object->setShuffle($_POST["shuffle"]);
00498                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00499                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00500 
00501                 $saved = $this->writeOtherPostData($result);
00502 
00503                 // Delete all existing answers and create new answers from the form data
00504                 $this->object->flushAnswers();
00505                 $graphical_answer_setting = $this->object->getGraphicalAnswerSetting();
00506                 // Add all answers from the form into the object
00507                 foreach ($_POST as $key => $value)
00508                 {
00509                         if (preg_match("/answer_(\d+)/", $key, $matches))
00510                         {
00511                                 $answer_image = $_POST["uploaded_image_".$matches[1]];
00512                                 if ($graphical_answer_setting == 1)
00513                                 {
00514                                         foreach ($_FILES as $key2 => $value2)
00515                                         {
00516                                                 if (preg_match("/image_(\d+)/", $key2, $matches2))
00517                                                 {
00518                                                         if ($matches[1] == $matches2[1])
00519                                                         {
00520                                                                 if ($value2["tmp_name"])
00521                                                                 {
00522                                                                         // upload the image
00523                                                                         if ($this->object->getId() <= 0)
00524                                                                         {
00525                                                                                 $this->object->saveToDb();
00526                                                                                 $saved = true;
00527                                                                                 $this->error .= $this->lng->txt("question_saved_for_upload") . "<br />";
00528                                                                         }
00529                                                                         $value2['name'] = $this->object->createNewImageFileName($value2['name']);
00530                                                                         $upload_result = $this->object->setImageFile($value2['name'], $value2['tmp_name']);
00531                                                                         switch ($upload_result)
00532                                                                         {
00533                                                                                 case 0:
00534                                                                                         $_POST["image_".$matches2[1]] = $value2['name'];
00535                                                                                         $answer_image = $value2['name'];
00536                                                                                         break;
00537                                                                                 case 1:
00538                                                                                         $this->error .= $this->lng->txt("error_image_upload_wrong_format") . "<br />";
00539                                                                                         break;
00540                                                                                 case 2:
00541                                                                                         $this->error .= $this->lng->txt("error_image_upload_copy_file") . "<br />";
00542                                                                                         break;
00543                                                                         }
00544                                                                 }
00545                                                         }
00546                                                 }
00547                                         }
00548                                 }
00549                                 $points = $_POST["points_$matches[1]"];
00550                                 $answertext = ilUtil::stripSlashes($_POST["$key"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00551                                 $this->object->addAnswer(
00552                                         $answertext,
00553                                         ilUtil::stripSlashes($points),
00554                                         0,
00555                                         ilUtil::stripSlashes($matches[1]),
00556                                         $answer_image
00557                                         );
00558                         }
00559                 }
00560                 if ($this->object->getMaximumPoints() < 0)
00561                 {
00562                         $result = 1;
00563                         $this->setErrorMessage($this->lng->txt("enter_enough_positive_points"));
00564                 }
00565 
00566                 // Set the question id from a hidden form parameter
00567                 if ($_POST["multiple_choice_id"] > 0)
00568                 {
00569                         $this->object->setId($_POST["multiple_choice_id"]);
00570                 }
00571 
00572                 if ($saved)
00573                 {
00574                         // If the question was saved automatically before an upload, we have to make
00575                         // sure, that the state after the upload is saved. Otherwise the user could be
00576                         // irritated, if he presses cancel, because he only has the question state before
00577                         // the upload process.
00578                         $this->object->saveToDb();
00579                         $_GET["q_id"] = $this->object->getId();
00580                 }
00581 
00582                 return $result;
00583         }
00584 
00585         function outQuestionForTest($formaction, $active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00586         {
00587                 $test_output = $this->getTestOutput($active_id, $pass, $is_postponed, $use_post_solutions); 
00588                 $this->tpl->setVariable("QUESTION_OUTPUT", $test_output);
00589                 $this->tpl->setVariable("FORMACTION", $formaction);
00590         }
00591 
00592         function getSolutionOutput($active_id, $pass = NULL, $graphicalOutput = FALSE, $result_output = FALSE, $show_question_only = TRUE)
00593         {
00594                 // shuffle output
00595                 $keys = array_keys($this->object->answers);
00596 
00597                 // get the solution of the user for the active pass or from the last pass if allowed
00598                 $user_solution = "";
00599                 if ($active_id)
00600                 {
00601                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00602                         foreach ($solutions as $idx => $solution_value)
00603                         {
00604                                 $user_solution = $solution_value["value1"];
00605                         }
00606                 }
00607                 else
00608                 {
00609                         $found_index = -1;
00610                         $max_points = 0;
00611                         foreach ($this->object->answers as $index => $answer)
00612                         {
00613                                 if ($answer->getPoints() > $max_points)
00614                                 {
00615                                         $max_points = $answer->getPoints();
00616                                         $found_index = $index;
00617                                 }
00618                         }
00619                         $user_solution = $found_index;
00620                 }
00621                 // generate the question output
00622                 include_once "./classes/class.ilTemplate.php";
00623                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output_solution.html", TRUE, TRUE, TRUE);
00624                 $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html", TRUE, TRUE, TRUE);
00625                 foreach ($keys as $answer_id)
00626                 {
00627                         $answer = $this->object->answers[$answer_id];
00628                         if ($active_id)
00629                         {
00630                                 if ($graphicalOutput)
00631                                 {
00632                                         // output of ok/not ok icons for user entered solutions
00633                                         $ok = FALSE;
00634                                         if (strcmp($user_solution, $answer_id) == 0)
00635                                         {
00636                                                 if ($answer->getPoints() == $this->object->getMaximumPoints())
00637                                                 {
00638                                                         $ok = TRUE;
00639                                                 }
00640                                                 else
00641                                                 {
00642                                                         $ok = FALSE;
00643                                                 }
00644                                                 if ($ok)
00645                                                 {
00646                                                         $template->setCurrentBlock("icon_ok");
00647                                                         $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.gif"));
00648                                                         $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
00649                                                         $template->parseCurrentBlock();
00650                                                 }
00651                                                 else
00652                                                 {
00653                                                         $template->setCurrentBlock("icon_not_ok");
00654                                                         if ($answer->getPoints() > 0)
00655                                                         {
00656                                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_mostly_ok.gif"));
00657                                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_not_correct_but_positive"));
00658                                                         }
00659                                                         else
00660                                                         {
00661                                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00662                                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00663                                                         }
00664                                                         $template->parseCurrentBlock();
00665                                                 }
00666                                         }
00667                                         if (strlen($user_solution) == 0)
00668                                         {
00669                                                 $template->setCurrentBlock("icon_not_ok");
00670                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00671                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00672                                                 $template->parseCurrentBlock();
00673                                         }
00674                                 }
00675                         }
00676                         if (strlen($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                         if (strcmp($user_solution, $answer_id) == 0)
00693                         {
00694                                 $template->setVariable("SOLUTION_IMAGE", ilUtil::getImagePath("radiobutton_checked.gif"));
00695                                 $template->setVariable("SOLUTION_ALT", $this->lng->txt("checked"));
00696                         }
00697                         else
00698                         {
00699                                 $template->setVariable("SOLUTION_IMAGE", ilUtil::getImagePath("radiobutton_unchecked.gif"));
00700                                 $template->setVariable("SOLUTION_ALT", $this->lng->txt("unchecked"));
00701                         }
00702                         if ($result_output)
00703                         {
00704                                 $points = $this->object->answers[$answer_id]->getPoints();
00705                                 $resulttext = ($points == 1) ? "(%s " . $this->lng->txt("point") . ")" : "(%s " . $this->lng->txt("points") . ")"; 
00706                                 $template->setVariable("RESULT_OUTPUT", sprintf($resulttext, $points));
00707                         }
00708                         $template->parseCurrentBlock();
00709                 }
00710                 $questiontext = $this->object->getQuestion();
00711                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00712                 $questionoutput = $template->get();
00713                 $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
00714 
00715                 $solutionoutput = $solutiontemplate->get(); 
00716                 if (!$show_question_only)
00717                 {
00718                         // get page object output
00719                         $pageoutput = $this->getILIASPage();
00720                         $solutionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $solutionoutput, $pageoutput);
00721                 }
00722                 return $solutionoutput;
00723         }
00724         
00725         function getPreview()
00726         {
00727                 // shuffle output
00728                 $keys = array_keys($this->object->answers);
00729                 if ($this->object->getShuffle())
00730                 {
00731                         $keys = $this->object->pcArrayShuffle($keys);
00732                 }
00733 
00734                 // generate the question output
00735                 include_once "./classes/class.ilTemplate.php";
00736                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, TRUE);
00737                 foreach ($keys as $answer_id)
00738                 {
00739                         $answer = $this->object->answers[$answer_id];
00740                         if (strlen($answer->getImage()))
00741                         {
00742                                 $template->setCurrentBlock("answer_image");
00743                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00744                                 $alt = $answer->getImage();
00745                                 if (strlen($answer->getAnswertext()))
00746                                 {
00747                                         $alt = $answer->getAnswertext();
00748                                 }
00749                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00750                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00751                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00752                                 $template->parseCurrentBlock();
00753                         }
00754                         $template->setCurrentBlock("answer_row");
00755                         $template->setVariable("ANSWER_ID", $answer_id);
00756                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00757                         $template->parseCurrentBlock();
00758                 }
00759                 $questiontext = $this->object->getQuestion();
00760                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00761                 $questionoutput = $template->get();
00762                 $questionoutput = preg_replace("/<div[^>]*?>(.*)<\/div>/is", "\\1", $questionoutput);
00763                 return $questionoutput;
00764         }
00765 
00766         function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00767         {
00768                 // get page object output
00769                 $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id);
00770 
00771                 // shuffle output
00772                 $keys = array_keys($this->object->answers);
00773                 if ($this->object->getShuffle())
00774                 {
00775                         $keys = $this->object->pcArrayShuffle($keys);
00776                 }
00777 
00778                 // get the solution of the user for the active pass or from the last pass if allowed
00779                 $user_solution = "";
00780                 if ($active_id)
00781                 {
00782                         $solutions = NULL;
00783                         include_once "./assessment/classes/class.ilObjTest.php";
00784                         if (ilObjTest::_getHidePreviousResults($active_id, true))
00785                         {
00786                                 if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
00787                         }
00788                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00789                         foreach ($solutions as $idx => $solution_value)
00790                         {
00791                                 $user_solution = $solution_value["value1"];
00792                         }
00793                 }
00794                 
00795                 // generate the question output
00796                 include_once "./classes/class.ilTemplate.php";
00797                 $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, TRUE);
00798                 foreach ($keys as $answer_id)
00799                 {
00800                         $answer = $this->object->answers[$answer_id];
00801                         if (strlen($answer->getImage()))
00802                         {
00803                                 $template->setCurrentBlock("answer_image");
00804                                 $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
00805                                 $alt = $answer->getImage();
00806                                 if (strlen($answer->getAnswertext()))
00807                                 {
00808                                         $alt = $answer->getAnswertext();
00809                                 }
00810                                 $alt = preg_replace("/<[^>]*?>/", "", $alt);
00811                                 $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
00812                                 $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
00813                                 $template->parseCurrentBlock();
00814                         }
00815                         $template->setCurrentBlock("answer_row");
00816                         $template->setVariable("ANSWER_ID", $answer_id);
00817                         $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
00818                         if (strcmp($user_solution, $answer_id) == 0)
00819                         {
00820                                 $template->setVariable("CHECKED_ANSWER", " checked=\"checked\"");
00821                         }
00822                         $template->parseCurrentBlock();
00823                 }
00824                 $questiontext = $this->object->getQuestion();
00825                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00826                 $questionoutput = $template->get();
00827                 $questionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $questionoutput, $pageoutput);
00828                 return $questionoutput;
00829         }
00830 
00831         function addSuggestedSolution()
00832         {
00833                 $_SESSION["subquestion_index"] = 0;
00834                 if ($_POST["cmd"]["addSuggestedSolution"])
00835                 {
00836                         if ($this->writePostData())
00837                         {
00838                                 sendInfo($this->getErrorMessage());
00839                                 $this->editQuestion();
00840                                 return;
00841                         }
00842                         if (!$this->checkInput())
00843                         {
00844                                 sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00845                                 $this->editQuestion();
00846                                 return;
00847                         }
00848                 }
00849                 $this->object->saveToDb();
00850                 $_GET["q_id"] = $this->object->getId();
00851                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00852                 $this->getQuestionTemplate();
00853                 parent::addSuggestedSolution();
00854         }
00855 
00859         function upload()
00860         {
00861                 $this->writePostData();
00862                 $this->editQuestion();
00863         }
00864         
00865         function deleteImage()
00866         {
00867                 if ($this->writePostData())
00868                 {
00869                         sendInfo($this->getErrorMessage());
00870                         $this->editQuestion();
00871                         return;
00872                 }
00873                 $imageorder = "";
00874                 foreach ($_POST["cmd"] as $key => $value)
00875                 {
00876                         if (preg_match("/deleteImage_(\d+)/", $key, $matches))
00877                         {
00878                                 $imageorder = $matches[1];
00879                         }
00880                 }
00881                 for ($i = 0; $i < $this->object->getAnswerCount(); $i++)
00882                 {
00883                         $answer = $this->object->getAnswer($i);
00884                         if ($answer->getOrder() == $imageorder)
00885                         {
00886                                 $this->object->deleteImage($answer->getImage());
00887                                 $this->object->answers[$i]->setImage("");
00888                         }
00889                 }
00890                 $this->editQuestion();
00891         }
00892 
00893         function editMode()
00894         {
00895                 global $ilUser;
00896                 
00897                 $this->object->setMultilineAnswerSetting($_POST["multilineAnswers"]);
00898                 $this->object->setGraphicalAnswerSetting($_POST["graphicalAnswerSupport"]);
00899                 $this->writePostData();
00900                 $this->editQuestion();
00901         }
00902 
00903 }
00904 ?>