ILIAS Release_3_6_x_branch .rev 46809: assessment/classes/class.assImagemapQuestion.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.assQuestion.php";
00025 include_once "./assessment/classes/inc.AssessmentConstants.php";
00026 
00037 class ASS_ImagemapQuestion extends ASS_Question 
00038 {
00039 
00047   var $question;
00048 
00056   var $answers;
00057 
00065   var $imagemap_filename;
00066 
00074   var $image_filename;
00075 
00083   var $imagemap_contents;
00084         var $coords;
00085 
00100   function ASS_ImagemapQuestion(
00101     $title = "",
00102     $comment = "",
00103     $author = "",
00104     $owner = -1,
00105     $question = "",
00106     $imagemap_filename = "",
00107     $image_filename = ""
00108 
00109   )
00110   {
00111     $this->ASS_Question($title, $comment, $author, $owner);
00112     $this->question = $question;
00113     $this->imagemap_filename = $imagemap_filename;
00114     $this->image_filename = $image_filename;
00115     $this->answers = array();
00116                 $this->coords = array();
00117   }
00118 
00127         function isComplete()
00128         {
00129                 if (($this->title) and ($this->author) and ($this->question) and ($this->image_filename) and (count($this->answers)) and ($this->getMaximumPoints() > 0))
00130                 {
00131                         return true;
00132                 }
00133                         else
00134                 {
00135                         return false;
00136                 }
00137         }
00138 
00147         function saveToDb($original_id = "")
00148         {
00149                 global $ilias;
00150 
00151                 $complete = 0;
00152                 if ($this->isComplete())
00153                 {
00154                         $complete = 1;
00155                 }
00156 
00157                 $db = & $ilias->db;
00158 
00159                 $estw_time = $this->getEstimatedWorkingTime();
00160                 $estw_time = sprintf("%02d:%02d:%02d", $estw_time['h'], $estw_time['m'], $estw_time['s']);
00161                 if ($original_id)
00162                 {
00163                         $original_id = $db->quote($original_id);
00164                 }
00165                 else
00166                 {
00167                         $original_id = "NULL";
00168                 }
00169 
00170                 if ($this->id == -1)
00171                 {
00172                         // Neuen Datensatz schreiben
00173                         $now = getdate();
00174                         $question_type = $this->getQuestionType();
00175                         $created = sprintf("%04d%02d%02d%02d%02d%02d", $now['year'], $now['mon'], $now['mday'], $now['hours'], $now['minutes'], $now['seconds']);
00176                         $query = sprintf("INSERT INTO qpl_questions (question_id, question_type_fi, obj_fi, title, comment, author, owner, question_text, working_time, points, image_file, complete, created, original_id, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, NULL)",
00177                                 $db->quote($question_type),
00178                                 $db->quote($this->obj_id),
00179                                 $db->quote($this->title),
00180                                 $db->quote($this->comment),
00181                                 $db->quote($this->author),
00182                                 $db->quote($this->owner),
00183                                 $db->quote($this->question),
00184                                 $db->quote($estw_time),
00185                                 $db->quote($this->getMaximumPoints() . ""),
00186                                 $db->quote($this->image_filename),
00187                                 $db->quote("$complete"),
00188                                 $db->quote($created),
00189                                 $original_id
00190                         );
00191                         $result = $db->query($query);
00192                         if ($result == DB_OK)
00193                         {
00194                                 $this->id = $db->getLastInsertId();
00195 
00196                                 // create page object of question
00197                                 $this->createPageObject();
00198 
00199                                 // Falls die Frage in einen Test eingef�gt werden soll, auch diese Verbindung erstellen
00200                                 if ($this->getTestId() > 0)
00201                                 {
00202                                         $this->insertIntoTest($this->getTestId());
00203                                 }
00204                         }
00205                 }
00206                 else
00207                 {
00208                         // Vorhandenen Datensatz aktualisieren
00209                         $query = sprintf("UPDATE qpl_questions SET obj_fi = %s, title = %s, comment = %s, author = %s, question_text = %s, working_time = %s, points = %s, image_file = %s, complete = %s WHERE question_id = %s",
00210                                 $db->quote($this->obj_id. ""),
00211                                 $db->quote($this->title),
00212                                 $db->quote($this->comment),
00213                                 $db->quote($this->author),
00214                                 $db->quote($this->question),
00215                                 $db->quote($estw_time),
00216                                 $db->quote($this->getMaximumPoints() . ""),
00217                                 $db->quote($this->image_filename),
00218                                 $db->quote("$complete"),
00219                                 $db->quote($this->id)
00220                         );
00221                         $result = $db->query($query);
00222                 }
00223 
00224                 if ($result == DB_OK)
00225                 {
00226                         $query = sprintf("DELETE FROM qpl_answers WHERE question_fi = %s",
00227                                 $db->quote($this->id)
00228                         );
00229                         $result = $db->query($query);
00230                         // Anworten wegschreiben
00231                         foreach ($this->answers as $key => $value)
00232                         {
00233                                 $answer_obj = $this->answers[$key];
00234                                 //print "id:".$this->id." answer tex:".$answer_obj->get_answertext()." answer_obj->get_order():".$answer_obj->get_order()." answer_obj->get_coords():".$answer_obj->get_coords()." answer_obj->get_area():".$answer_obj->get_area();
00235                                 $query = sprintf("INSERT INTO qpl_answers (answer_id, question_fi, answertext, points, aorder, correctness, coords, area, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, %s, %s, NULL)",
00236                                         $db->quote($this->id),
00237                                         $db->quote($answer_obj->get_answertext() . ""),
00238                                         $db->quote($answer_obj->get_points() . ""),
00239                                         $db->quote($answer_obj->get_order() . ""),
00240                                         $db->quote($answer_obj->getState() . ""),
00241                                         $db->quote($answer_obj->get_coords() . ""),
00242                                         $db->quote($answer_obj->get_area() . "")
00243                                         );
00244                                 $answer_result = $db->query($query);
00245                                 }
00246                 }
00247                 parent::saveToDb($original_id);
00248         }
00249 
00257         function duplicate($for_test = true, $title = "", $author = "", $owner = "")
00258         {
00259                 if ($this->id <= 0)
00260                 {
00261                         // The question has not been saved. It cannot be duplicated
00262                         return;
00263                 }
00264                 // duplicate the question in database
00265                 $this_id = $this->getId();
00266                 $clone = $this;
00267                 include_once ("./assessment/classes/class.assQuestion.php");
00268                 $original_id = ASS_Question::_getOriginalId($this->id);
00269                 $clone->id = -1;
00270                 if ($title)
00271                 {
00272                         $clone->setTitle($title);
00273                 }
00274                 if ($author)
00275                 {
00276                         $clone->setAuthor($author);
00277                 }
00278                 if ($owner)
00279                 {
00280                         $clone->setOwner($owner);
00281                 }
00282                 if ($for_test)
00283                 {
00284                         $clone->saveToDb($original_id);
00285                 }
00286                 else
00287                 {
00288                         $clone->saveToDb();
00289                 }
00290 
00291                 // copy question page content
00292                 $clone->copyPageOfQuestion($this_id);
00293 
00294                 // duplicate the image
00295                 $clone->duplicateImage($this_id);
00296                 return $clone->id;
00297         }
00298 
00306         function copyObject($target_questionpool, $title = "")
00307         {
00308                 if ($this->id <= 0)
00309                 {
00310                         // The question has not been saved. It cannot be duplicated
00311                         return;
00312                 }
00313                 // duplicate the question in database
00314                 $clone = $this;
00315                 include_once ("./assessment/classes/class.assQuestion.php");
00316                 $original_id = ASS_Question::_getOriginalId($this->id);
00317                 $clone->id = -1;
00318                 $source_questionpool = $this->getObjId();
00319                 $clone->setObjId($target_questionpool);
00320                 if ($title)
00321                 {
00322                         $clone->setTitle($title);
00323                 }
00324                 $clone->saveToDb();
00325 
00326                 // copy question page content
00327                 $clone->copyPageOfQuestion($original_id);
00328 
00329                 // duplicate the image
00330                 $clone->copyImage($original_id, $source_questionpool);
00331                 return $clone->id;
00332         }
00333         
00334         function duplicateImage($question_id)
00335         {
00336                 $imagepath = $this->getImagePath();
00337                 $imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
00338                 if (!file_exists($imagepath)) {
00339                         ilUtil::makeDirParents($imagepath);
00340                 }
00341                 $filename = $this->get_image_filename();
00342                 if (!copy($imagepath_original . $filename, $imagepath . $filename)) {
00343                         print "image could not be duplicated!!!! ";
00344                 }
00345         }
00346 
00347         function copyImage($question_id, $source_questionpool)
00348         {
00349                 $imagepath = $this->getImagePath();
00350                 $imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
00351                 $imagepath_original = str_replace("/$this->obj_id/", "/$source_questionpool/", $imagepath_original);
00352                 if (!file_exists($imagepath)) 
00353                 {
00354                         ilUtil::makeDirParents($imagepath);
00355                 }
00356                 $filename = $this->get_image_filename();
00357                 if (!copy($imagepath_original . $filename, $imagepath . $filename)) 
00358                 {
00359                         print "image could not be copied!!!! ";
00360                 }
00361         }
00362 
00372   function loadFromDb($question_id)
00373   {
00374     global $ilias;
00375 
00376     $db = & $ilias->db;
00377     $query = sprintf("SELECT * FROM qpl_questions WHERE question_id = %s",
00378       $db->quote($question_id)
00379     );
00380     $result = $db->query($query);
00381     if (strcmp(strtolower(get_class($result)), db_result) == 0) {
00382       if ($result->numRows() == 1) {
00383         $data = $result->fetchRow(DB_FETCHMODE_OBJECT);
00384         $this->id = $question_id;
00385                                 $this->obj_id = $data->obj_fi;
00386         $this->title = $data->title;
00387         $this->comment = $data->comment;
00388         $this->author = $data->author;
00389                                 $this->original_id = $data->original_id;
00390                                 $this->solution_hint = $data->solution_hint;
00391         $this->owner = $data->owner;
00392         $this->question = $data->question_text;
00393         $this->image_filename = $data->image_file;
00394         $this->points = $data->points;
00395         $this->setEstimatedWorkingTime(substr($data->working_time, 0, 2), substr($data->working_time, 3, 2), substr($data->working_time, 6, 2));
00396       }
00397       $query = sprintf("SELECT * FROM qpl_answers WHERE question_fi = %s ORDER BY aorder ASC",
00398         $db->quote($question_id)
00399       );
00400       $result = $db->query($query);
00401                         include_once "./assessment/classes/class.assAnswerImagemap.php";
00402       if (strcmp(strtolower(get_class($result)), db_result) == 0) 
00403                         {
00404         while ($data = $result->fetchRow(DB_FETCHMODE_OBJECT)) 
00405                                 {
00406                                         if ($data->correctness == 0)
00407                                         {
00408                                                 // fix for older single response answers where points could be given for unchecked answers
00409                                                 $data->correctness = 1;
00410                                                 $data->points = 0;
00411                                         }
00412           array_push($this->answers, new ASS_AnswerImagemap($data->answertext, $data->points, $data->aorder, $data->correctness, $data->coords, $data->area));
00413         }
00414       }
00415     }
00416                 parent::loadFromDb($question_id);
00417   }
00418 
00426         function addAnswer($answertext, $points, $answerorder, $correctness, $coords, $area)
00427         {
00428                 include_once "./assessment/classes/class.assAnswerImagemap.php";
00429                 array_push($this->answers, new ASS_AnswerImagemap($answertext, $points, $answerorder, $correctness, $coords, $area));
00430         }
00431         
00441         function to_xml($a_include_header = true, $a_include_binary = true, $a_shuffle = false, $test_output = false, $force_image_references = false)
00442         {
00443                 include_once("./classes/class.ilXmlWriter.php");
00444                 $a_xml_writer = new ilXmlWriter;
00445                 // set xml header
00446                 $a_xml_writer->xmlHeader();
00447                 $a_xml_writer->xmlStartTag("questestinterop");
00448                 $attrs = array(
00449                         "ident" => "il_".IL_INST_ID."_qst_".$this->getId(),
00450                         "title" => $this->getTitle()
00451                 );
00452                 $a_xml_writer->xmlStartTag("item", $attrs);
00453                 // add question description
00454                 $a_xml_writer->xmlElement("qticomment", NULL, $this->getComment());
00455                 // add estimated working time
00456                 $workingtime = $this->getEstimatedWorkingTime();
00457                 $duration = sprintf("P0Y0M0DT%dH%dM%dS", $workingtime["h"], $workingtime["m"], $workingtime["s"]);
00458                 $a_xml_writer->xmlElement("duration", NULL, $duration);
00459                 // add ILIAS specific metadata
00460                 $a_xml_writer->xmlStartTag("itemmetadata");
00461                 $a_xml_writer->xmlStartTag("qtimetadata");
00462                 $a_xml_writer->xmlStartTag("qtimetadatafield");
00463                 $a_xml_writer->xmlElement("fieldlabel", NULL, "ILIAS_VERSION");
00464                 $a_xml_writer->xmlElement("fieldentry", NULL, $this->ilias->getSetting("ilias_version"));
00465                 $a_xml_writer->xmlEndTag("qtimetadatafield");
00466                 $a_xml_writer->xmlStartTag("qtimetadatafield");
00467                 $a_xml_writer->xmlElement("fieldlabel", NULL, "QUESTIONTYPE");
00468                 $a_xml_writer->xmlElement("fieldentry", NULL, IMAGEMAP_QUESTION_IDENTIFIER);
00469                 $a_xml_writer->xmlEndTag("qtimetadatafield");
00470                 $a_xml_writer->xmlStartTag("qtimetadatafield");
00471                 $a_xml_writer->xmlElement("fieldlabel", NULL, "AUTHOR");
00472                 $a_xml_writer->xmlElement("fieldentry", NULL, $this->getAuthor());
00473                 $a_xml_writer->xmlEndTag("qtimetadatafield");
00474                 $a_xml_writer->xmlEndTag("qtimetadata");
00475                 $a_xml_writer->xmlEndTag("itemmetadata");
00476                 
00477                 // PART I: qti presentation
00478                 $attrs = array(
00479                         "label" => $this->getTitle()
00480                 );
00481                 $a_xml_writer->xmlStartTag("presentation", $attrs);
00482                 // add flow to presentation
00483                 $a_xml_writer->xmlStartTag("flow");
00484                 // add material with question text to presentation
00485                 $a_xml_writer->xmlStartTag("material");
00486                 $a_xml_writer->xmlElement("mattext", NULL, $this->get_question());
00487                 $a_xml_writer->xmlEndTag("material");
00488                 // add answers to presentation
00489                 $attrs = array(
00490                         "ident" => "IM",
00491                         "rcardinality" => "Single"
00492                 );
00493                 $a_xml_writer->xmlStartTag("response_xy", $attrs);
00494                 $solution = $this->getSuggestedSolution(0);
00495                 if (count($solution))
00496                 {
00497                         if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
00498                         {
00499                                 $a_xml_writer->xmlStartTag("material");
00500                                 $intlink = "il_" . IL_INST_ID . "_" . $matches[2] . "_" . $matches[3];
00501                                 if (strcmp($matches[1], "") != 0)
00502                                 {
00503                                         $intlink = $solution["internal_link"];
00504                                 }
00505                                 $attrs = array(
00506                                         "label" => "suggested_solution"
00507                                 );
00508                                 $a_xml_writer->xmlElement("mattext", $attrs, $intlink);
00509                                 $a_xml_writer->xmlEndTag("material");
00510                         }
00511                 }
00512                 $a_xml_writer->xmlStartTag("render_hotspot");
00513                 $a_xml_writer->xmlStartTag("material");
00514                 $imagetype = "image/jpeg";
00515                 if (preg_match("/.*\.(png|gif)$/", $this->get_image_filename(), $matches))
00516                 {
00517                         $imagetype = "image/" . $matches[1];
00518                 }
00519                 $attrs = array(
00520                         "imagtype" => $imagetype,
00521                         "label" => $this->get_image_filename()
00522                 );
00523                 if ($a_include_binary)
00524                 {
00525                         if ($force_image_references)
00526                         {
00527                                 $attrs["uri"] = $this->getImagePathWeb() . $this->get_image_filename();
00528                                 $a_xml_writer->xmlElement("matimage", $attrs);
00529                         }
00530                         else
00531                         {
00532                                 $attrs["embedded"] = "base64";
00533                                 $imagepath = $this->getImagePath() . $this->get_image_filename();
00534                                 $fh = fopen($imagepath, "rb");
00535                                 if ($fh == false)
00536                                 {
00537                                         global $ilErr;
00538                                         $ilErr->raiseError($this->lng->txt("error_open_image_file"), $ilErr->MESSAGE);
00539                                         return;
00540                                 }
00541                                 $imagefile = fread($fh, filesize($imagepath));
00542                                 fclose($fh);
00543                                 $base64 = base64_encode($imagefile);
00544                                 $a_xml_writer->xmlElement("matimage", $attrs, $base64, FALSE, FALSE);
00545                         }
00546                 }
00547                 else
00548                 {
00549                         $a_xml_writer->xmlElement("matimage", $attrs);
00550                 }
00551                 $a_xml_writer->xmlEndTag("material");
00552 
00553                 // add answers
00554                 foreach ($this->answers as $index => $answer)
00555                 {
00556                         $rared = "";
00557                         switch ($answer->get_area())
00558                         {
00559                                 case "rect":
00560                                         $rarea = "Rectangle";
00561                                         break;
00562                                 case "circle":
00563                                         $rarea = "Ellipse";
00564                                         break;
00565                                 case "poly":
00566                                         $rarea = "Bounded";
00567                                         break;
00568                         }
00569                         $attrs = array(
00570                                 "ident" => $index,
00571                                 "rarea" => $rarea
00572                         );
00573                         $a_xml_writer->xmlStartTag("response_label", $attrs);
00574                         $a_xml_writer->xmlData($answer->get_coords());
00575                         $a_xml_writer->xmlStartTag("material");
00576                         $a_xml_writer->xmlElement("mattext", NULL, $answer->get_answertext());
00577                         $a_xml_writer->xmlEndTag("material");
00578                         $a_xml_writer->xmlEndTag("response_label");
00579                 }
00580                 $a_xml_writer->xmlEndTag("render_hotspot");
00581                 $a_xml_writer->xmlEndTag("response_xy");
00582                 $a_xml_writer->xmlEndTag("flow");
00583                 $a_xml_writer->xmlEndTag("presentation");
00584 
00585                 // PART II: qti resprocessing
00586                 $a_xml_writer->xmlStartTag("resprocessing");
00587                 $a_xml_writer->xmlStartTag("outcomes");
00588                 $a_xml_writer->xmlStartTag("decvar");
00589                 $a_xml_writer->xmlEndTag("decvar");
00590                 $a_xml_writer->xmlEndTag("outcomes");
00591                 // add response conditions
00592                 foreach ($this->answers as $index => $answer)
00593                 {
00594                         $attrs = array(
00595                                 "continue" => "Yes"
00596                         );
00597                         $a_xml_writer->xmlStartTag("respcondition", $attrs);
00598                         // qti conditionvar
00599                         $a_xml_writer->xmlStartTag("conditionvar");
00600                         if (!$answer->isStateSet())
00601                         {
00602                                 $a_xml_writer->xmlStartTag("not");
00603                         }
00604                         $areatype = "";
00605                         switch ($answer->get_area())
00606                         {
00607                                 case "rect":
00608                                         $areatype = "Rectangle";
00609                                         break;
00610                                 case "circle":
00611                                         $areatype = "Ellipse";
00612                                         break;
00613                                 case "poly":
00614                                         $areatype = "Bounded";
00615                                         break;
00616                         }
00617                         $attrs = array(
00618                                 "respident" => "IM",
00619                                 "areatype" => $areatype
00620                         );
00621                         $a_xml_writer->xmlElement("varinside", $attrs, $answer->get_coords());
00622                         if (!$answer->isStateSet())
00623                         {
00624                                 $a_xml_writer->xmlEndTag("not");
00625                         }
00626                         $a_xml_writer->xmlEndTag("conditionvar");
00627                         // qti setvar
00628                         $attrs = array(
00629                                 "action" => "Add"
00630                         );
00631                         $a_xml_writer->xmlElement("setvar", $attrs, $answer->get_points());
00632                         // qti displayfeedback
00633                         if ($answer->isStateChecked())
00634                         {
00635                                 $linkrefid = "True";
00636                         }
00637                           else
00638                         {
00639                                 $linkrefid = "False_$index";
00640                         }
00641                         $attrs = array(
00642                                 "feedbacktype" => "Response",
00643                                 "linkrefid" => $linkrefid
00644                         );
00645                         $a_xml_writer->xmlElement("displayfeedback", $attrs);
00646                         $a_xml_writer->xmlEndTag("respcondition");
00647                 }
00648                 $a_xml_writer->xmlEndTag("resprocessing");
00649 
00650                 // PART III: qti itemfeedback
00651                 foreach ($this->answers as $index => $answer)
00652                 {
00653                         $linkrefid = "";
00654                         if ($answer->isStateChecked())
00655                         {
00656                                 $linkrefid = "True";
00657                         }
00658                           else
00659                         {
00660                                 $linkrefid = "False_$index";
00661                         }
00662                         $attrs = array(
00663                                 "ident" => $linkrefid,
00664                                 "view" => "All"
00665                         );
00666                         $a_xml_writer->xmlStartTag("itemfeedback", $attrs);
00667                         // qti flow_mat
00668                         $a_xml_writer->xmlStartTag("flow_mat");
00669                         $a_xml_writer->xmlStartTag("material");
00670                         $a_xml_writer->xmlElement("mattext");
00671                         $a_xml_writer->xmlEndTag("material");
00672                         $a_xml_writer->xmlEndTag("flow_mat");
00673                         $a_xml_writer->xmlEndTag("itemfeedback");
00674                 }
00675                 
00676                 $a_xml_writer->xmlEndTag("item");
00677                 $a_xml_writer->xmlEndTag("questestinterop");
00678 
00679                 $xml = $a_xml_writer->xmlDumpMem(FALSE);
00680                 if (!$a_include_header)
00681                 {
00682                         $pos = strpos($xml, "?>");
00683                         $xml = substr($xml, $pos + 2);
00684                 }
00685                 return $xml;
00686         }
00687 
00697   function get_question() {
00698     return $this->question;
00699   }
00700 
00710   function set_question($question = "") {
00711     $this->question = $question;
00712   }
00713 
00723   function get_imagemap_filename() {
00724     return $this->imagemap_filename;
00725   }
00726 
00736   function set_imagemap_filename($imagemap_filename, $imagemap_tempfilename = "") {
00737     if (!empty($imagemap_filename)) {
00738       $this->imagemap_filename = $imagemap_filename;
00739     }
00740     if (!empty($imagemap_tempfilename)) {
00741             $fp = fopen($imagemap_tempfilename, "r");
00742             $contents = fread($fp, filesize($imagemap_tempfilename));
00743       fclose($fp);
00744                         if (preg_match_all("/<area(.+)>/siU", $contents, $matches)) {
00745                         for ($i=0; $i< count($matches[1]); $i++) {
00746                         preg_match("/alt\s*=\s*\"(.+)\"\s*/siU", $matches[1][$i], $alt);
00747                         preg_match("/coords\s*=\s*\"(.+)\"\s*/siU", $matches[1][$i], $coords);
00748                         preg_match("/shape\s*=\s*\"(.+)\"\s*/siU", $matches[1][$i], $shape);
00749                                         $this->add_answer($alt[1], 0.0, FALSE, count($this->answers), $coords[1], $shape[1]);
00750                         }
00751                         }
00752     }
00753         }
00754 
00764   function get_image_filename() {
00765     return $this->image_filename;
00766   }
00767 
00777   function set_image_filename($image_filename, $image_tempfilename = "") {
00778 
00779     if (!empty($image_filename)) 
00780                 {
00781                         $image_filename = str_replace(" ", "_", $image_filename);
00782       $this->image_filename = $image_filename;
00783     }
00784                 if (!empty($image_tempfilename)) {
00785                         $imagepath = $this->getImagePath();
00786                         if (!file_exists($imagepath)) {
00787                                 ilUtil::makeDirParents($imagepath);
00788                         }
00789                         
00790                         if (!ilUtil::moveUploadedFile($image_tempfilename, $image_filename, $imagepath.$image_filename))
00791                         {
00792                                 $this->ilias->raiseError("The image could not be uploaded!", $this->ilias->error_obj->MESSAGE);
00793                         }
00794                 }
00795   }
00796 
00806   function get_imagemap_contents($href = "#") {
00807                 $imagemap_contents = "<map name=\"".$this->title."\"> ";
00808                 for ($i = 0; $i < count($this->answers); $i++) {
00809                         $imagemap_contents .= "<area alt=\"".$this->answers[$i]->get_answertext()."\" ";
00810                         $imagemap_contents .= "shape=\"".$this->answers[$i]->get_area()."\" ";
00811                         $imagemap_contents .= "coords=\"".$this->answers[$i]->get_coords()."\" ";
00812                         $imagemap_contents .= "href=\"$href&selimage=" . $this->answers[$i]->get_order() . "\" /> ";
00813                 }
00814                 $imagemap_contents .= "</map>";
00815     return $imagemap_contents;
00816   }
00817 
00832   function add_answer(
00833     $answertext = "",
00834     $points = 0.0,
00835     $status = 0,
00836     $order = 0,
00837     $coords="",
00838     $area=""
00839   )
00840   {
00841                 include_once "./assessment/classes/class.assAnswerImagemap.php";
00842     if (array_key_exists($order, $this->answers)) 
00843                 {
00844       // Antwort einf�gen
00845       $answer = new ASS_AnswerImagemap($answertext, $points, $order, $status, $coords, $area);
00846                         for ($i = count($this->answers) - 1; $i >= $order; $i--) 
00847                         {
00848                                 $this->answers[$i+1] = $this->answers[$i];
00849                                 $this->answers[$i+1]->set_order($i+1);
00850                         }
00851                         $this->answers[$order] = $answer;
00852     }
00853                 else 
00854                 {
00855       // Anwort anh�ngen
00856       $answer = new ASS_AnswerImagemap($answertext, $points, count($this->answers), $status, $coords, $area);
00857       array_push($this->answers, $answer);
00858     }
00859   }
00860 
00870   function get_answer_count() {
00871     return count($this->answers);
00872   }
00873 
00885   function get_answer($index = 0) {
00886     if ($index < 0) return NULL;
00887     if (count($this->answers) < 1) return NULL;
00888     if ($index >= count($this->answers)) return NULL;
00889     return $this->answers[$index];
00890   }
00891 
00902   function deleteArea($index = 0) {
00903     if ($index < 0) return;
00904     if (count($this->answers) < 1) return;
00905     if ($index >= count($this->answers)) return;
00906     unset($this->answers[$index]);
00907     $this->answers = array_values($this->answers);
00908     for ($i = 0; $i < count($this->answers); $i++) {
00909       if ($this->answers[$i]->get_order() > $index) {
00910         $this->answers[$i]->set_order($i);
00911       }
00912     }
00913   }
00914 
00923   function flush_answers() {
00924     $this->answers = array();
00925   }
00926 
00935   function getMaximumPoints() {
00936                 $points = array("set" => 0, "unset" => 0);
00937                 foreach ($this->answers as $key => $value) {
00938                         if ($value->get_points() > $points["set"])
00939                         {
00940                                 $points["set"] = $value->get_points();
00941                         }
00942                 }
00943                 return $points["set"];
00944   }
00945 
00957         function calculateReachedPoints($user_id, $test_id, $pass = NULL)
00958         {
00959                 global $ilDB;
00960                 
00961     $found_values = array();
00962                 if (is_null($pass))
00963                 {
00964                         $pass = $this->getSolutionMaxPass($user_id, $test_id);
00965                 }
00966                 $query = sprintf("SELECT * FROM tst_solutions WHERE user_fi = %s AND test_fi = %s AND question_fi = %s AND pass = %s",
00967                         $ilDB->quote($user_id . ""),
00968                         $ilDB->quote($test_id . ""),
00969                         $ilDB->quote($this->getId() . ""),
00970                         $ilDB->quote($pass . "")
00971                 );
00972     $result = $ilDB->query($query);
00973                 while ($data = $result->fetchRow(DB_FETCHMODE_OBJECT))
00974                 {
00975                         if (strcmp($data->value1, "") != 0)
00976                         {
00977                                 array_push($found_values, $data->value1);
00978                         }
00979                 }
00980                 $points = 0;
00981                 if (count($found_values) > 0)
00982                 {
00983                         foreach ($this->answers as $key => $answer)
00984                         {
00985                                 if ($answer->isStateChecked())
00986                                 {
00987                                         if (in_array($key, $found_values))
00988                                         {
00989                                                 $points += $answer->get_points();
00990                                         }
00991                                 }
00992                         }
00993                 }
00994 
00995                 // check for special scoring options in test
00996                 $query = sprintf("SELECT * FROM tst_tests WHERE test_id = %s",
00997                         $ilDB->quote($test_id)
00998                 );
00999                 $result = $ilDB->query($query);
01000                 if ($result->numRows() == 1)
01001                 {
01002                         $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
01003                         if ($row["count_system"] == 1)
01004                         {
01005                                 if ($points != $this->getMaximumPoints())
01006                                 {
01007                                         $points = 0;
01008                                 }
01009                         }
01010                 }
01011                 else
01012                 {
01013                         $points = 0;
01014                 }
01015                 return $points;
01016         }
01017 
01027   function getReachedInformation($user_id, $test_id, $pass = NULL) 
01028         {
01029     $found_values = array();
01030                 if (is_null($pass))
01031                 {
01032                         $pass = $this->getSolutionMaxPass($user_id, $test_id);
01033                 }
01034     $query = sprintf("SELECT * FROM tst_solutions WHERE user_fi = %s AND test_fi = %s AND question_fi = %s AND pass = %s",
01035       $this->ilias->db->quote($user_id . ""),
01036       $this->ilias->db->quote($test_id . ""),
01037       $this->ilias->db->quote($this->getId() . ""),
01038                         $this->ilias->db->quote($pass . "")
01039     );
01040     $result = $this->ilias->db->query($query);
01041                 while ($data = $result->fetchRow(DB_FETCHMODE_OBJECT))
01042                 {
01043                         array_push($found_values, $data->value1);
01044                 }
01045                 $counter = 1;
01046                 $user_result = array();
01047                 foreach ($found_values as $key => $value)
01048                 {
01049                         $solution = array(
01050                                 "order" => "$counter",
01051                                 "points" => 0,
01052                                 "true" => 0,
01053                                 "value" => "",
01054                                 );
01055                         if (strlen($value) > 0)
01056                         {
01057                                 $solution["value"] = $value;
01058                                 $solution["points"] = $this->answers[$value]->get_points();
01059                                 if ($this->answers[$value]->isStateChecked())
01060                                 {
01061                                         $solution["true"] = 1;
01062                                 }
01063                         }
01064                         $counter++;
01065                         array_push($user_result, $solution);
01066                 }
01067                 return $user_result;
01068   }
01069 
01080   function saveWorkingData($test_id, $pass = NULL) 
01081         {
01082     global $ilDB;
01083                 global $ilUser;
01084     $db =& $ilDB->db;
01085 
01086                 include_once "./assessment/classes/class.ilObjTest.php";
01087                 $activepass = ilObjTest::_getPass($ilUser->id, $test_id);
01088                 
01089     $query = sprintf("DELETE FROM tst_solutions WHERE user_fi = %s AND test_fi = %s AND question_fi = %s AND pass = %s",
01090                         $db->quote($ilUser->id . ""),
01091                         $db->quote($test_id . ""),
01092                         $db->quote($this->getId() . ""),
01093                         $db->quote($activepass . "")
01094     );
01095     $result = $db->query($query);
01096 
01097                 if (strlen($_GET["selImage"]))
01098                 {
01099                         $query = sprintf("INSERT INTO tst_solutions (solution_id, user_fi, test_fi, question_fi, value1, value2, pass, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, NULL, %s, NULL)",
01100                                 $db->quote($ilUser->id),
01101                                 $db->quote($test_id),
01102                                 $db->quote($this->getId()),
01103                                 $db->quote($_GET["selImage"]),
01104                                 $db->quote($activepass . "")
01105                         );
01106                         $result = $db->query($query);
01107 
01108                         include_once ("./classes/class.ilObjAssessmentFolder.php");
01109                         if (ilObjAssessmentFolder::_enabledAssessmentLogging())
01110                         {
01111                                 $this->logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $test_id, $this->getId());
01112                         }
01113                 }
01114                 else
01115                 {
01116                         include_once ("./classes/class.ilObjAssessmentFolder.php");
01117                         if (ilObjAssessmentFolder::_enabledAssessmentLogging())
01118                         {
01119                                 $this->logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $test_id, $this->getId());
01120                         }
01121                 }
01122     parent::saveWorkingData($test_id, $pass);
01123                 return true;
01124   }
01125 
01126         function syncWithOriginal()
01127         {
01128                 global $ilias;
01129                 if ($this->original_id)
01130                 {
01131                         $complete = 0;
01132                         if ($this->isComplete())
01133                         {
01134                                 $complete = 1;
01135                         }
01136                         $db = & $ilias->db;
01137         
01138                         $estw_time = $this->getEstimatedWorkingTime();
01139                         $estw_time = sprintf("%02d:%02d:%02d", $estw_time['h'], $estw_time['m'], $estw_time['s']);
01140         
01141                         $query = sprintf("UPDATE qpl_questions SET obj_fi = %s, title = %s, comment = %s, author = %s, question_text = %s, working_time = %s, points = %s, image_file = %s, complete = %s WHERE question_id = %s",
01142                                 $db->quote($this->obj_id. ""),
01143                                 $db->quote($this->title . ""),
01144                                 $db->quote($this->comment . ""),
01145                                 $db->quote($this->author . ""),
01146                                 $db->quote($this->question . ""),
01147                                 $db->quote($estw_time . ""),
01148                                 $db->quote($this->getMaximumPoints() . ""),
01149                                 $db->quote($this->image_filename . ""),
01150                                 $db->quote($complete . ""),
01151                                 $db->quote($this->original_id . "")
01152                         );
01153                         $result = $db->query($query);
01154 
01155                         if ($result == DB_OK)
01156                         {
01157                                 // write answers
01158                                 // delete old answers
01159                                 $query = sprintf("DELETE FROM qpl_answers WHERE question_fi = %s",
01160                                         $db->quote($this->original_id)
01161                                 );
01162                                 $result = $db->query($query);
01163         
01164                                 foreach ($this->answers as $key => $value)
01165                                 {
01166                                         $answer_obj = $this->answers[$key];
01167                                         $query = sprintf("INSERT INTO qpl_answers (answer_id, question_fi, answertext, points, aorder, correctness, coords, area, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, %s, %s, %s, NULL)",
01168                                                 $db->quote($this->original_id . ""),
01169                                                 $db->quote($answer_obj->get_answertext() . ""),
01170                                                 $db->quote($answer_obj->get_points() . ""),
01171                                                 $db->quote($answer_obj->get_order() . ""),
01172                                                 $db->quote($answer_obj->getState() . ""),
01173                                                 $db->quote($answer_obj->get_coords() . ""),
01174                                                 $db->quote($answer_obj->get_area() . "")
01175                                                 );
01176                                         $answer_result = $db->query($query);
01177                                 }
01178                         }
01179                         parent::syncWithOriginal();
01180                 }
01181         }
01182 
01191         function getQuestionType()
01192         {
01193                 return 6;
01194         }
01195 }
01196 
01197 ?>