ILIAS Release_3_7_x_branch .rev 46817: assessment/classes/class.assNumericGUI.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 
00039 class assNumericGUI extends assQuestionGUI
00040 {
00049         function assNumericGUI(
00050                         $id = -1
00051         )
00052         {
00053                 $this->assQuestionGUI();
00054                 include_once "./assessment/classes/class.assNumeric.php";
00055                 $this->object = new assNumeric();
00056                 if ($id >= 0)
00057                 {
00058                         $this->object->loadFromDb($id);
00059                 }
00060         }
00061 
00062         function getCommand($cmd)
00063         {
00064                 if (substr($cmd, 0, 6) == "delete")
00065                 {
00066                         $cmd = "delete";
00067                 }
00068 
00069                 return $cmd;
00070         }
00071 
00072 
00080         function editQuestion()
00081         {
00082                 $javascript = "<script type=\"text/javascript\">function initialSelect() {\n%s\n}</script>";
00083                 $this->getQuestionTemplate();
00084                 $this->tpl->addBlockFile("QUESTION_DATA", "question_data", "tpl.il_as_qpl_numeric.html", true);
00085                 // call to other question data i.e. estimated working time block
00086                 $this->outOtherQuestionData();
00087 
00088                 $internallinks = array(
00089                         "lm" => $this->lng->txt("obj_lm"),
00090                         "st" => $this->lng->txt("obj_st"),
00091                         "pg" => $this->lng->txt("obj_pg"),
00092                         "glo" => $this->lng->txt("glossary_term")
00093                 );
00094                 foreach ($internallinks as $key => $value)
00095                 {
00096                         $this->tpl->setCurrentBlock("internallink");
00097                         $this->tpl->setVariable("TYPE_INTERNAL_LINK", $key);
00098                         $this->tpl->setVariable("TEXT_INTERNAL_LINK", $value);
00099                         $this->tpl->parseCurrentBlock();
00100                 }
00101                 
00102                 if ($this->object->getRangeCount() == 0)
00103                 {
00104                         $this->object->addRange(0.0, 0.0, 0);
00105                 }
00106                 
00107                 $counter = 0;
00108                 foreach ($this->object->ranges as $range)
00109                 {
00110                         $this->tpl->setCurrentBlock("ranges");
00111                         $this->tpl->setVariable("COUNTER", $counter);
00112                         $this->tpl->setVariable("TEXT_RANGE", $this->lng->txt("range"));
00113                         if (strlen($range->getPoints())) $this->tpl->setVariable("VALUE_POINTS", " value=\"" . $range->getPoints() . "\"");
00114                         if (strlen($range->getLowerLimit())) $this->tpl->setVariable("VALUE_LOWER_LIMIT", " value=\"" . $range->getLowerLimit() . "\"");
00115                         if (strlen($range->getUpperLimit())) $this->tpl->setVariable("VALUE_UPPER_LIMIT", " value=\"" . $range->getUpperLimit() . "\"");
00116                         $this->tpl->setVariable("TEXT_RANGE_LOWER_LIMIT", $this->lng->txt("range_lower_limit"));
00117                         $this->tpl->setVariable("TEXT_RANGE_UPPER_LIMIT", $this->lng->txt("range_upper_limit"));
00118                         $this->tpl->setVariable("TEXT_POINTS", $this->lng->txt("points"));
00119                         $this->tpl->parseCurrentBlock();
00120                         $counter++;
00121                 }
00122                 
00123                 $this->tpl->setCurrentBlock("question_data");
00124                 $this->tpl->setVariable("NUMERIC_ID", $this->object->getId());
00125                 $this->tpl->setVariable("VALUE_NUMERIC_TITLE", ilUtil::prepareFormOutput($this->object->getTitle()));
00126                 $this->tpl->setVariable("VALUE_NUMERIC_COMMENT", ilUtil::prepareFormOutput($this->object->getComment()));
00127                 $this->tpl->setVariable("VALUE_NUMERIC_AUTHOR", ilUtil::prepareFormOutput($this->object->getAuthor()));
00128                 $questiontext = $this->object->getQuestion();
00129                 $this->tpl->setVariable("VALUE_QUESTION", ilUtil::prepareFormOutput($this->object->prepareTextareaOutput($questiontext)));
00130                 $this->tpl->setVariable("TEXT_TITLE", $this->lng->txt("title"));
00131                 $this->tpl->setVariable("TEXT_AUTHOR", $this->lng->txt("author"));
00132                 $this->tpl->setVariable("TEXT_COMMENT", $this->lng->txt("description"));
00133                 $this->tpl->setVariable("TEXT_QUESTION", $this->lng->txt("question"));
00134                 $this->tpl->setVariable("TEXT_SOLUTION_HINT", $this->lng->txt("solution_hint"));
00135                 $this->tpl->setVariable("TEXT_MAXCHARS", $this->lng->txt("maxchars"));
00136                 $this->tpl->setVariable("VALUE_MAXCHARS", $this->object->getMaxChars());
00137                 if (count($this->object->suggested_solutions))
00138                 {
00139                         $solution_array = $this->object->getSuggestedSolution(0);
00140                         include_once "./assessment/classes/class.assQuestion.php";
00141                         $href = assQuestion::_getInternalLinkHref($solution_array["internal_link"]);
00142                         $this->tpl->setVariable("TEXT_VALUE_SOLUTION_HINT", " <a href=\"$href\" target=\"content\">" . $this->lng->txt("solution_hint"). "</a> ");
00143                         $this->tpl->setVariable("BUTTON_REMOVE_SOLUTION", $this->lng->txt("remove"));
00144                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("change"));
00145                         $this->tpl->setVariable("VALUE_SOLUTION_HINT", $solution_array["internal_link"]);
00146                 }
00147                 else
00148                 {
00149                         $this->tpl->setVariable("BUTTON_ADD_SOLUTION", $this->lng->txt("add"));
00150                 }
00151                 $this->tpl->setVariable("SAVE",$this->lng->txt("save"));
00152                 $this->tpl->setVariable("SAVE_EDIT", $this->lng->txt("save_edit"));
00153                 $this->tpl->setVariable("CANCEL",$this->lng->txt("cancel"));
00154                 $this->tpl->setVariable("TXT_REQUIRED_FLD", $this->lng->txt("required_field"));
00155                 $this->ctrl->setParameter($this, "sel_question_types", "assNumeric");
00156                 $this->tpl->setVariable("FORMACTION", $this->ctrl->getFormAction($this));
00157                 $this->tpl->setVariable("TEXT_QUESTION_TYPE", $this->lng->txt("assNumeric"));
00158                 include_once "./Services/RTE/classes/class.ilRTE.php";
00159                 $rtestring = ilRTE::_getRTEClassname();
00160                 include_once "./Services/RTE/classes/class.$rtestring.php";
00161                 $rte = new $rtestring();
00162                 $rte->addPlugin("latex");
00163                 $rte->addButton("latex");
00164                 include_once "./classes/class.ilObject.php";
00165                 $obj_id = $_GET["q_id"];
00166                 $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
00167                 $rte->addRTESupport($obj_id, $obj_type, "assessment");
00168                 
00169                 $this->tpl->parseCurrentBlock();
00170                 $this->tpl->setCurrentBlock("adm_content");
00171                 // $this->tpl->setVariable("BODY_ATTRIBUTES", " onload=\"initialSelect();\""); 
00172                 $this->tpl->parseCurrentBlock();
00173         }
00174 
00178         function checkInput()
00179         {
00180                 $cmd = $this->ctrl->getCmd();
00181 
00182                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]))
00183                 {
00184 //echo "<br>checkInput1:FALSE";
00185                         return false;
00186                 }
00187                 foreach ($_POST as $key => $value)
00188                 {
00189                         if (preg_match("/range_(\d+)/", $key, $matches))
00190                         {
00191                                 if (!$value)
00192                                 {
00193 //echo "<br>checkInput2:FALSE";
00194                                         return false;
00195                                 }
00196                         }
00197                 }
00198 
00199                 return true;
00200         }
00201 
00211         function checkRange()
00212         {
00213                 if (is_numeric($_POST["rang_lower_limit"]) AND is_numeric ($_POST ["range_upper_limit"]))
00214                 {
00215                         if ($_POST ["rang_lower_limit"] < $_POST ["range_upper_limit"])
00216                         {
00217                                 return true;
00218                         }
00219                         else 
00220                         {
00221                                 return false;
00222                         }
00223                 }
00224                 else 
00225                 {
00226                         return false;
00227                 }
00228         }
00229 
00238         function writePostData()
00239         {
00240                 $saved = false;
00241                 $result = 0;
00242                 if ((!$_POST["title"]) or (!$_POST["author"]) or (!$_POST["question"]) or (!$_POST["maxchars"]))
00243                 {
00244                         $result = 1;
00245                 }
00246 
00247                 $this->object->setTitle(ilUtil::stripSlashes($_POST["title"]));
00248                 $this->object->setAuthor(ilUtil::stripSlashes($_POST["author"]));
00249                 $this->object->setComment(ilUtil::stripSlashes($_POST["comment"]));
00250                 include_once "./classes/class.ilObjAdvancedEditing.php";
00251                 $questiontext = ilUtil::stripSlashes($_POST["question"], false, ilObjAdvancedEditing::_getUsedHTMLTagsAsString("assessment"));
00252                 $questiontext = preg_replace("/[\n\r]+/", "<br />", $questiontext);
00253                 $this->object->setQuestion($questiontext);
00254                 $this->object->setSuggestedSolution($_POST["solution_hint"], 0);
00255                 $this->object->setShuffle($_POST["shuffle"]);
00256                 $this->object->setMaxChars($_POST["maxchars"]);
00257                 
00258                 // adding estimated working time
00259                 $saved = $saved | $this->writeOtherPostData($result);
00260 
00261                 // Delete all existing ranges and create new answers from the form data
00262                 $this->object->flushRanges();
00263 
00264                 // Add all answers from the form into the object
00265 
00266                 // ...for Numeric with single response
00267                 foreach ($_POST as $key => $value)
00268                 {
00269                         if (preg_match("/lowerlimit_(\d+)/", $key, $matches))
00270                         {
00271                                 $points = $_POST["points_$matches[1]"];
00272                                 if ($points < 0)
00273                                 {
00274                                         $result = 1;
00275                                         $this->setErrorMessage($this->lng->txt("negative_points_not_allowed"));
00276                                 }
00277                                 $lowerlimit = str_replace(",", ".", $_POST["lowerlimit_".$matches[1]]);
00278                                 if (strlen($lowerlimit) == 0) $lowerlimit = 0.0;
00279                                 if (!is_numeric($lowerlimit))
00280                                 {
00281                                         $this->setErrorMessage($this->lng->txt("value_is_not_a_numeric_value"));
00282                                         $result = 1;
00283                                 }
00284                                 $upperlimit = str_replace(",", ".", $_POST["upperlimit_".$matches[1]]);
00285                                 if (strlen($upperlimit) == 0) $upperlimit = 0.0;
00286                                 if (!is_numeric($upperlimit))
00287                                 {
00288                                         $this->setErrorMessage($this->lng->txt("value_is_not_a_numeric_value"));
00289                                         $result = 1;
00290                                 }
00291                                 $this->object->addRange(
00292                                         $lowerlimit,
00293                                         $upperlimit,
00294                                         $points,
00295                                         $matches[1]
00296                                 );
00297                         }
00298                 }
00299 
00300                 if ($saved)
00301                 {
00302                         // If the question was saved automatically before an upload, we have to make
00303                         // sure, that the state after the upload is saved. Otherwise the user could be
00304                         // irritated, if he presses cancel, because he only has the question state before
00305                         // the upload process.
00306                         $this->object->saveToDb();
00307                         $_GET["q_id"] = $this->object->getId();
00308                 }
00309 
00310                 return $result;
00311         }
00312 
00313         function outQuestionForTest($formaction, $active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00314         {
00315                 $test_output = $this->getTestOutput($active_id, $pass, $is_postponed, $use_post_solutions); 
00316                 $this->tpl->setVariable("QUESTION_OUTPUT", $test_output);
00317                 $this->tpl->setVariable("FORMACTION", $formaction);
00318         }
00319 
00320         function getSolutionOutput($active_id, $pass = NULL, $graphicalOutput = FALSE, $result_output = FALSE, $show_question_only = TRUE)
00321         {
00322                 // get the solution of the user for the active pass or from the last pass if allowed
00323                 $solutions = array();
00324                 if ($active_id)
00325                 {
00326                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00327                 }
00328                 else
00329                 {
00330                         foreach ($this->object->ranges as $key => $range)
00331                         {
00332                                 array_push($solutions, array("value1" => sprintf($this->lng->txt("value_between_x_and_y"), $range->getLowerLimit(), $range->getUpperLimit())));
00333                         }
00334                 }
00335                 
00336                 // generate the question output
00337                 include_once "./classes/class.ilTemplate.php";
00338                 $template = new ilTemplate("tpl.il_as_qpl_numeric_output_solution.html", TRUE, TRUE, TRUE);
00339                 $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html", TRUE, TRUE, TRUE);
00340                 if (is_array($solutions))
00341                 {
00342                         if ($active_id)
00343                         {
00344                                 if ($graphicalOutput)
00345                                 {
00346                                         // output of ok/not ok icons for user entered solutions
00347                                         if ($this->object->getReachedPoints($active_id) == $this->object->getMaximumPoints())
00348                                         {
00349                                                 $template->setCurrentBlock("icon_ok");
00350                                                 $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.gif"));
00351                                                 $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
00352                                                 $template->parseCurrentBlock();
00353                                         }
00354                                         else
00355                                         {
00356                                                 $template->setCurrentBlock("icon_ok");
00357                                                 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.gif"));
00358                                                 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
00359                                                 $template->parseCurrentBlock();
00360                                         }
00361                                 }
00362                         }
00363                         foreach ($solutions as $solution)
00364                         {
00365                                 $template->setVariable("NUMERIC_VALUE", $solution["value1"]);
00366                         }
00367                         if (count($solutions) == 0)
00368                         {
00369                                 $template->setVariable("NUMERIC_VALUE", "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
00370                         }
00371                 }
00372                 $template->setVariable("NUMERIC_SIZE", $this->object->getMaxChars());
00373                 $questiontext = $this->object->getQuestion();
00374                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00375                 $questionoutput = $template->get();
00376                 $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
00377 
00378                 $solutionoutput = $solutiontemplate->get(); 
00379                 if (!$show_question_only)
00380                 {
00381                         // get page object output
00382                         $pageoutput = $this->getILIASPage();
00383                         $solutionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $solutionoutput, $pageoutput);
00384                 }
00385                 return $solutionoutput;
00386         }
00387         
00388         function getPreview()
00389         {
00390                 // generate the question output
00391                 include_once "./classes/class.ilTemplate.php";
00392                 $template = new ilTemplate("tpl.il_as_qpl_numeric_output.html", TRUE, TRUE, TRUE);
00393                 $template->setVariable("NUMERIC_SIZE", $this->object->getMaxChars());
00394                 $questiontext = $this->object->getQuestion();
00395                 $questiontext = $this->object->getQuestion();
00396                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00397                 $questionoutput = $template->get();
00398                 $questionoutput = preg_replace("/<div[^>]*?>(.*)<\/div>/is", "\\1", $questionoutput);
00399                 return $questionoutput;
00400         }
00401         
00402         function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
00403         {
00404                 // get page object output
00405                 $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id);
00406 
00407                 // get the solution of the user for the active pass or from the last pass if allowed
00408                 if ($active_id)
00409                 {
00410                         $solutions = NULL;
00411                         include_once "./assessment/classes/class.ilObjTest.php";
00412                         if (ilObjTest::_getHidePreviousResults($active_id, true))
00413                         {
00414                                 if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
00415                         }
00416                         $solutions =& $this->object->getSolutionValues($active_id, $pass);
00417                 }
00418                 
00419                 // generate the question output
00420                 include_once "./classes/class.ilTemplate.php";
00421                 $template = new ilTemplate("tpl.il_as_qpl_numeric_output.html", TRUE, TRUE, TRUE);
00422                 if (is_array($solutions))
00423                 {
00424                         foreach ($solutions as $solution)
00425                         {
00426                                 $template->setVariable("NUMERIC_VALUE", " value=\"".$solution["value1"]."\"");
00427                         }
00428                 }
00429                 $template->setVariable("NUMERIC_SIZE", $this->object->getMaxChars());
00430                 $questiontext = $this->object->getQuestion();
00431                 $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
00432                 $questionoutput = $template->get();
00433                 $questionoutput = preg_replace("/(<div( xmlns:xhtml\=\"http:\/\/www.w3.org\/1999\/xhtml\"){0,1} class\=\"ilc_Question\"><\/div>)/ims", $questionoutput, $pageoutput);
00434                 return $questionoutput;
00435         }
00436         
00437         function addSuggestedSolution()
00438         {
00439                 $_SESSION["subquestion_index"] = 0;
00440                 if ($_POST["cmd"]["addSuggestedSolution"])
00441                 {
00442                         if ($this->writePostData())
00443                         {
00444                                 sendInfo($this->getErrorMessage());
00445                                 $this->editQuestion();
00446                                 return;
00447                         }
00448                         if (!$this->checkInput())
00449                         {
00450                                 sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
00451                                 $this->editQuestion();
00452                                 return;
00453                         }
00454                 }
00455                 $this->object->saveToDb();
00456                 $_GET["q_id"] = $this->object->getId();
00457                 $this->tpl->setVariable("HEADER", $this->object->getTitle());
00458                 $this->getQuestionTemplate();
00459                 parent::addSuggestedSolution();
00460         }
00461 
00470         function getQuestionType()
00471         {
00472                 return "assNumeric";
00473         }
00474 }
00475 ?>