ILIAS Release_3_4_x_branch .rev 46804: course/classes/class.ilObjCourseGroupingGUI.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 
00034 require_once "./classes/class.ilObjectGUI.php";
00035 
00036 class ilObjCourseGroupingGUI
00037 {
00038         var $crs_obj;
00039         var $tpl;
00040         var $ctrl;
00041         var $lng;
00042 
00047         function ilObjCourseGroupingGUI(&$crs_obj,$a_obj_id = 0)
00048         {
00049                 global $tpl,$ilCtrl,$lng;
00050 
00051                 $this->tpl =& $tpl;
00052                 $this->ctrl =& $ilCtrl;
00053                 $this->lng =& $lng;
00054 
00055                 $this->type = "crsg";
00056                 $this->crs_obj =& $crs_obj;
00057 
00058                 $this->id = $a_obj_id;
00059                 $this->ctrl->saveParameter($this,'obj_id');
00060 
00061                 $this->__initGroupingObject();
00062 
00063         }
00064 
00065         function create()
00066         {
00067                 $options = array('login' => 'login',
00068                                                  'email' => 'email',
00069                                                  'matriculation' => 'matriculation');
00070 
00071 
00072                 $title = ilUtil::prepareFormOutput($_POST["title"],true);
00073                 $desc  = ilUtil::stripSlashes($_POST["description"]);
00074                 $unique = $_POST['unique'] ? $_POST['unique'] : 'login';
00075 
00076                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.crs_grp_add.html","course");
00077 
00078                 $this->tpl->setVariable("TITLE",$title);
00079                 $this->tpl->setVariable("DESC",$desc);
00080                 $this->tpl->setVariable("UNAM_SELECT",ilUtil::formSelect($unique,'unique',$options));
00081 
00082                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00083                 $this->tpl->setVariable("TXT_HEADER",$this->lng->txt('crs_add_grouping'));
00084                 $this->tpl->setVariable("TXT_TITLE",$this->lng->txt('title'));
00085                 $this->tpl->setVariable("TXT_DESC",$this->lng->txt('description'));
00086                 $this->tpl->setVariable("TXT_UNAM",$this->lng->txt('unambiguousness'));
00087                 $this->tpl->setVariable("TXT_REQUIRED_FLD",$this->lng->txt('required'));
00088                 $this->tpl->setVariable("CMD_SUBMIT",'add');
00089                 $this->tpl->setVariable("TXT_SUBMIT",$this->lng->txt('add'));
00090                 $this->tpl->setVariable("TXT_CANCEL",$this->lng->txt('cancel'));
00091         }
00092 
00093         function cancel()
00094         {
00095                 $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00096         }
00097 
00098         function add()
00099         {
00100                 if(!$_POST['title'])
00101                 {
00102                         sendInfo($this->lng->txt('crs_grp_enter_title'));
00103                         $this->create();
00104                         
00105                         return false;
00106                 }
00107 
00108                 $this->grp_obj->setTitle(ilUtil::stripSlashes($_POST['title']));
00109                 $this->grp_obj->setDescription(ilUtil::stripSlashes($_POST['description']));
00110                 $this->grp_obj->setUniqueField($_POST['unique']);
00111                 if($this->grp_obj->create($this->crs_obj->getRefId(),$this->crs_obj->getId()))
00112                 {
00113                         sendInfo($this->lng->txt('crs_grp_added_grouping'));
00114                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00115                         
00116                         return true;
00117                 }
00118                 sendInfo($this->lng->txt('crs_grp_err_adding_grouping'));
00119                 $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00120                 
00121                 return false;
00122         }
00123         
00124         function edit()
00125         {
00126                 $options = array('login' => 'login',
00127                                                  'email' => 'email',
00128                                                  'matriculation' => 'matriculation');
00129 
00130                 $title = isset($_POST['title']) ? ilUtil::stripSlashes($_POST['title']) : $this->grp_obj->getTitle();
00131                 $description  = isset($_POST["description"]) ? ilUtil::stripSlashes($_POST['description']) : $this->grp_obj->getDescription();
00132                 $unique = $_POST['unique'] ? $_POST['unique'] : $this->grp_obj->getUniqueField();
00133 
00134                 if(!$this->id)
00135                 {
00136                         sendInfo($this->lng->txt('crs_grp_no_grouping_id_given'));
00137                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00138                         
00139                         return false;
00140                 }
00141                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.crs_grp_edit.html","course");
00142 
00143                 $this->tpl->addBlockfile("BUTTONS", "buttons", "tpl.buttons.html");
00144                 
00145                 // display button
00146                 $this->tpl->setCurrentBlock("btn_cell");
00147                 $this->tpl->setVariable("BTN_LINK",$this->ctrl->getLinkTargetByClass('ilobjcoursegui','listGroupings'));
00148                 $this->tpl->setVariable("BTN_TXT",$this->lng->txt('back'));
00149                 $this->tpl->parseCurrentBlock();
00150 
00151                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00152                 $this->tpl->setVariable("TBL_TITLE_IMG",ilUtil::getImagePath('icon_crs.gif'));
00153                 $this->tpl->setVariable("TBL_TITLE_IMG_ALT",$this->lng->txt('crs_groupings'));
00154                 $this->tpl->setVariable("TBL_TITLE",$this->lng->txt('crs_grouping').' ('.$this->grp_obj->getTitle().')');
00155                 $this->tpl->setVariable("BTN_UPDATE",$this->lng->txt('update'));
00156                 $this->tpl->setVariable("BTN_ADD",$this->lng->txt('crs_add_grp_assignment'));
00157                 $this->tpl->setVariable("TXT_TITLE",$this->lng->txt('title'));
00158                 $this->tpl->setVariable("TXT_DESCRIPTION",$this->lng->txt('description'));
00159 
00160                 $this->tpl->setVariable("TXT_UNAM",$this->lng->txt('unambiguousness'));
00161                 $this->tpl->setVariable("UNAM_SELECT",ilUtil::formSelect($unique,'unique',$options));
00162 
00163                 $this->tpl->setVariable("TITLE",$title);
00164                 $this->tpl->setVariable("DESCRIPTION",$description);
00165 
00166                 if($this->grp_obj->getCountAssignedCourses())
00167                 {
00168                         foreach($this->grp_obj->getAssignedCourses() as $cond_data)
00169                         {
00170                                 if($cond_data['target_ref_id'] == $this->crs_obj->getRefId())
00171                                 {
00172                                         continue;
00173                                 }
00174                                 $tmp_obj =& ilObjectFactory::getInstanceByRefId($cond_data['target_ref_id']);
00175                                 
00176                                 $this->tpl->setCurrentBlock("list_courses");
00177                                 
00178                                 $this->ctrl->setParameter($this,'cond_id',$cond_data['id']);
00179                                 $this->tpl->setVariable("DELETE_LINK",$this->ctrl->getLinkTarget($this,'deleteAssignment'));
00180                                 $this->tpl->setVariable("LIST_CRS_TITLE",$tmp_obj->getTitle());
00181                                 $this->tpl->setVariable("TXT_DELETE",$this->lng->txt('delete'));
00182                                 $this->tpl->parseCurrentBlock();
00183                         }
00184                         $this->tpl->setCurrentBlock("assigned");
00185                         $this->tpl->setVariable("ASS_ROWSPAN",$this->grp_obj->getCountAssignedCourses());
00186                         $this->tpl->setVariable("ASS_COURSES",$this->lng->txt('crs_grp_table_assigned_courses'));
00187                         $this->tpl->setVariable("CRS_TITLE",$this->crs_obj->getTitle());
00188                         $this->tpl->parseCurrentBlock();
00189                 }
00190                 else
00191                 {
00192                         $this->tpl->setCurrentBlock("no_assigned");
00193                         $this->tpl->setVariable("MESSAGE_NO_COURSES",$this->lng->txt('crs_grp_no_courses_assigned'));
00194                         $this->tpl->parseCurrentBlock();
00195                 }
00196         }
00197 
00198         function deleteAssignment()
00199         {
00200                 include_once './classes/class.ilConditionHandler.php';
00201 
00202                 if(!$this->id)
00203                 {
00204                         sendInfo($this->lng->txt('crs_grp_no_grouping_id_given'));
00205                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00206                         
00207                         return false;
00208                 }
00209                 $condh =& new ilConditionHandler();
00210                 $condh->deleteCondition((int) $_GET['cond_id']);
00211 
00212                 // DELETE crs_obj condition if it is the last
00213                 if($this->grp_obj->getCountAssignedCourses() == 1)
00214                 {
00215                         $condh->deleteByObjId($this->id);
00216                 }
00217                 sendInfo($this->lng->txt('crs_grp_deassigned_courses'));
00218                 $this->edit();
00219         }
00220                 
00221 
00222         function selectCourse()
00223         {
00224                 global $tree;
00225 
00226                 if(!$this->id)
00227                 {
00228                         sendInfo($this->lng->txt('crs_grp_no_grouping_id_given'));
00229                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00230                         
00231                         return false;
00232                 }
00233                 if(count($courses = ilUtil::getObjectsByOperations('crs','write',false)) == 1)
00234                 {
00235                         sendInfo($this->lng->txt('crs_grp_no_course_found'));
00236                         $this->edit();
00237 
00238                         return false;
00239                 }
00240                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.crs_grp_select_crs.html","course");
00241 
00242                 $this->tpl->addBlockfile("BUTTONS", "buttons", "tpl.buttons.html");
00243                 
00244                 // display button
00245                 $this->tpl->setCurrentBlock("btn_cell");
00246                 $this->tpl->setVariable("BTN_LINK",$this->ctrl->getLinkTarget($this,'edit'));
00247                 $this->tpl->setVariable("BTN_TXT",$this->lng->txt('back'));
00248                 $this->tpl->parseCurrentBlock();
00249 
00250                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00251                 $this->tpl->setVariable("TBL_TITLE_IMG",ilUtil::getImagePath('icon_crs.gif'));
00252                 $this->tpl->setVariable("TBL_TITLE_IMG_ALT",$this->lng->txt('crs_groupings'));
00253                 $this->tpl->setVariable("TBL_TITLE",$this->lng->txt('crs_grp_assign_crs').' ('.$this->grp_obj->getTitle().')');
00254                 $this->tpl->setVariable("BTN_ASSIGN",$this->lng->txt('crs_grp_assign_crs'));
00255                 $this->tpl->setVariable("IMG_ARROW",ilUtil::getImagePath('arrow_downright.gif'));
00256                 $this->tpl->setVariable("HEADER_DESC",$this->lng->txt('description'));
00257 
00258                 $counter = 0;
00259                 foreach($courses as $course_data)
00260                 {
00261                         if($course_data['ref_id'] == $this->crs_obj->getRefId())
00262                         {
00263                                 continue;
00264                         }
00265                         $tmp_obj =& ilObjectFactory::getInstanceByRefId($course_data['ref_id']);
00266 
00267                         #if(ilObjCourseGrouping::_isInGrouping($tmp_obj->getId()))
00268                         #{
00269                         #       continue;
00270                         #}
00271                         if(strlen($tmp_obj->getDescription()))
00272                         {
00273                                 $this->tpl->setCurrentBlock("description");
00274                                 $this->tpl->setVariable("DESCRIPTION_CRS",$tmp_obj->getDescription());
00275                                 $this->tpl->parseCurrentBlock();
00276                         }
00277 
00278                         $this->tpl->setCurrentBlock("crs_row");
00279                         $this->tpl->setVariable("ROW_CLASS",ilUtil::switchColor(++$counter,'tblrow1','tblrow2'));
00280                         $this->tpl->setVariable("CHECK_CRS",ilUtil::formCheckbox(0,'crs_ids[]',$course_data['ref_id']));
00281                         $this->tpl->setVariable("CRS_TITLE",$tmp_obj->getTitle());
00282 
00283                         $path = $this->__formatPath($tree->getPathFull($course_data['ref_id']));
00284                         $this->tpl->setVariable("CRS_PATH",$this->lng->txt('path').": ".$path);
00285 
00286                         
00287                         $this->tpl->parseCurrentBlock();
00288 
00289                 }
00290 
00291                 return true;
00292         }
00293 
00294         function assignCourse()
00295         {
00296                 include_once './classes/class.ilConditionHandler.php';
00297 
00298                 if(!$this->id)
00299                 {
00300                         sendInfo($this->lng->txt('crs_grp_no_grouping_id_given'));
00301                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00302                         
00303                         return false;
00304                 }
00305                 if(!count($_POST['crs_ids']))
00306                 {
00307                         sendInfo($this->lng->txt('crs_grp_no_course_selected'));
00308                         $this->selectCourse();
00309 
00310                         return true;
00311                 }
00312 
00313                 $added = 0;
00314                 foreach($_POST['crs_ids'] as $course_ref_id)
00315                 {
00316                         $tmp_crs =& ilObjectFactory::getInstanceByRefId($course_ref_id);
00317                         $tmp_condh =& new ilConditionHandler();
00318                         $tmp_condh->enableAutomaticValidation(false);
00319 
00320                         $tmp_condh->setTargetRefId($course_ref_id);
00321                         $tmp_condh->setTargetObjId($tmp_crs->getId());
00322                         $tmp_condh->setTargetType('crs');
00323                         $tmp_condh->setTriggerRefId(0);
00324                         $tmp_condh->setTriggerObjId($this->id);
00325                         $tmp_condh->setTriggerType('crsg');
00326                         $tmp_condh->setOperator('not_member');
00327                         $tmp_condh->setValue($this->grp_obj->getUniqueField());
00328 
00329                         if(!$tmp_condh->checkExists())
00330                         {
00331                                 $tmp_condh->storeCondition();
00332                                 ++$added;
00333                         }
00334                 }
00335                 if($added)
00336                 {
00337                         // NOW add the course itself in condition table if it does not exist
00338                         
00339                         $tmp_condh =& new ilConditionHandler();
00340                         $tmp_condh->enableAutomaticValidation(false);
00341 
00342                         $tmp_condh->setTargetRefId($this->crs_obj->getRefId());
00343                         $tmp_condh->setTargetObjId($this->crs_obj->getId());
00344                         $tmp_condh->setTargetType('crs');
00345                         $tmp_condh->setTriggerRefId(0);
00346                         $tmp_condh->setTriggerObjId($this->id);
00347                         $tmp_condh->setTriggerType('crsg');
00348                         $tmp_condh->setOperator('not_member');
00349                         $tmp_condh->setValue($this->grp_obj->getUniqueField());
00350 
00351                         if(!$tmp_condh->checkExists())
00352                         {
00353                                 $tmp_condh->storeCondition();
00354                         }
00355                         sendInfo($this->lng->txt('crs_grp_assigned_courses'));
00356                         $this->edit();
00357 
00358                         return true;
00359                 }
00360                 else
00361                 {
00362                         sendInfo($this->lng->txt('crs_grp_courses_already_assigned'));
00363                         $this->edit();
00364 
00365                         return true;
00366                 }                       
00367         }       
00368                 
00369 
00370         function update()
00371         {
00372                 if(!$this->id)
00373                 {
00374                         sendInfo($this->lng->txt('crs_grp_no_grouping_id_given'));
00375                         $this->ctrl->redirectByClass('ilObjCourseGUI','listGroupings');
00376                         
00377                         return false;
00378                 }
00379                 if(!$_POST['title'])
00380                 {
00381                         sendInfo($this->lng->txt('crs_grp_enter_title'));
00382                         $this->edit();
00383 
00384                         return false;
00385                 }
00386                 $this->grp_obj->setTitle(ilUtil::stripSlashes($_POST['title']));
00387                 $this->grp_obj->setDescription(ilUtil::stripSlashes($_POST['description']));
00388                 $this->grp_obj->setUniqueField($_POST['unique']);
00389 
00390                 $this->grp_obj->update();
00391 
00392                 sendInfo($this->lng->txt('crs_grp_modified_grouping'));
00393                 $this->edit();
00394 
00395                 return true;
00396         }
00397 
00398         function &executeCommand()
00399         {
00400                 $cmd = $this->ctrl->getCmd();
00401                 if (!$cmd = $this->ctrl->getCmd())
00402                 {
00403                         $cmd = "edit";
00404                 }
00405                 $this->$cmd();
00406         }
00407 
00408         function otherSelectAssign()
00409         {
00410                 include_once './course/classes/class.ilObjCourseGrouping.php';
00411 
00412                 global $rbacsystem,$tree;
00413 
00414                 if(!$rbacsystem->checkAccess("write", $this->crs_obj->getRefId()))
00415                 {
00416                         $this->ilias->raiseError($this->lng->txt("msg_no_perm_write"),$this->ilias->error_obj->MESSAGE);
00417                 }
00418 
00419                 $this->tpl->addBlockFile("ADM_CONTENT","adm_content","tpl.crs_other_assign.html","course");
00420                 $this->tpl->addBlockfile("BUTTONS", "buttons", "tpl.buttons.html");
00421                 
00422                 // display button
00423                 $this->tpl->setCurrentBlock("btn_cell");
00424                 $this->tpl->setVariable("BTN_LINK",$this->ctrl->getLinkTarget($this,'edit'));
00425                 $this->tpl->setVariable("BTN_TXT",$this->lng->txt('back'));
00426                 $this->tpl->parseCurrentBlock();
00427 
00428                 if(!count($groupings = ilObjCourseGrouping::_getAllGroupings($this->crs_obj->getRefId(),false)))
00429                 {
00430                         sendInfo($this->lng->txt('crs_no_groupings_crs_can_be_assigned_to'));
00431                 
00432                         return true;
00433                 }
00434                 
00435                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormAction($this));
00436                 $this->tpl->setVariable("TBL_TITLE_IMG",ilUtil::getImagePath('icon_crs.gif'));
00437                 $this->tpl->setVariable("TBL_TITLE_IMG_ALT",$this->lng->txt('crs_groupings'));
00438                 $this->tpl->setVariable("TBL_TITLE",$this->lng->txt('crs_groupings'));
00439                 $this->tpl->setVariable("HEADER_DESC",$this->lng->txt('description'));
00440                 $this->tpl->setVariable("HEADER_UNAMBIGUOUSNESS",$this->lng->txt('unambiguousness'));
00441                 $this->tpl->setVariable("IMG_ARROW",ilUtil::getImagePath('arrow_downright.gif'));
00442                 $this->tpl->setVariable("BTN_ASSIGN",$this->lng->txt('crs_grouping_assign'));
00443                 
00444                 
00445                 $counter = 0;
00446                 foreach($groupings as $grouping_id)
00447                 {
00448                         $tmp_obj =& new ilObjCourseGrouping($grouping_id);
00449 
00450                         $tmp_crs = ilObjectFactory::getInstanceByRefId($tmp_obj->getCourseRefId());
00451 
00452                         if(strlen($tmp_obj->getDescription()))
00453                         {
00454                                 $this->tpl->setCurrentBlock("description");
00455                                 $this->tpl->setVariable("DESCRIPTION_GRP",$tmp_obj->getDescription());
00456                                 $this->tpl->parseCurrentBlock();
00457                         }
00458                         foreach($tmp_obj->getAssignedCourses() as $condition)
00459                         {
00460                                 $this->tpl->setCurrentBlock("path");
00461                                 $this->tpl->setVariable("ASS_PATH",'&nbsp;&nbsp;'.
00462                                                                                 $this->__formatPath($tree->getPathFull($condition['target_ref_id'])));
00463                                 $this->tpl->parseCurrentBlock();
00464                         }
00465 
00466                         $disabled = !$rbacsystem->checkAccess('write',$tmp_obj->getCourseRefId());
00467 
00468                         $this->tpl->setCurrentBlock("grouping_row");
00469                         $this->tpl->setVariable("GRP_TITLE",$tmp_obj->getTitle().' ('.$tmp_crs->getTitle().')');
00470                         $this->tpl->setVariable("CHECK_GRP",ilUtil::formCheckbox((int) $tmp_obj->isAssigned($this->crs_obj->getId()),
00471                                                                                                                                          'grouping[]',
00472                                                                                                                                          $grouping_id,
00473                                                                                                                                          $disabled));
00474                                                                                 
00475                         $this->tpl->setVariable("AMB_GRP",$this->lng->txt($tmp_obj->getUniqueField()));
00476                         $this->tpl->setVariable("ROW_CLASS",ilUtil::switchColor(++$counter,'tblrow1','tblrow2'));
00477 
00478 
00479                         if($num_courses = $tmp_obj->getCountAssignedCourses())
00480                         {
00481                                 $this->tpl->setVariable("ASSIGNED_COURSES",$this->lng->txt('crs_grp_assigned_courses_info')." <b>$num_courses</b> ");
00482                         }
00483                         else
00484                         {
00485                                 $this->tpl->setVariable("ASSIGNED_COURSES",$this->lng->txt('crs_grp_no_courses_assigned'));
00486                         }
00487                         $this->tpl->parseCurrentBlock();
00488                 }       
00489         }
00490 
00491         function otherAssign()
00492         {
00493                 include_once './course/classes/class.ilObjCourseGrouping.php';
00494 
00495                 global $rbacsystem,$tree;
00496 
00497                 if(!$rbacsystem->checkAccess("write", $this->crs_obj->getRefId()))
00498                 {
00499                         $this->ilias->raiseError($this->lng->txt("msg_no_perm_write"),$this->ilias->error_obj->MESSAGE);
00500                 }
00501                 
00502                 $_POST['grouping'] = $_POST['grouping'] ? $_POST['grouping'] : array();
00503                 foreach(ilObjCourseGrouping::_getAllGroupings($this->crs_obj->getRefId()) as $grouping_id)
00504                 {
00505                         $tmp_obj =& new ilObjCourseGrouping($grouping_id);
00506 
00507                         if($tmp_obj->isAssigned($this->crs_obj->getId()) and !in_array($grouping_id,$_POST['grouping']))
00508                         {
00509                                 $tmp_obj->deassign($this->crs_obj->getRefId(),$this->crs_obj->getId());
00510                                 continue;
00511                         }
00512                         if(!$tmp_obj->isAssigned($this->crs_obj->getId()) and in_array($grouping_id,$_POST['grouping']))
00513                         {
00514                                 $tmp_obj->assign($this->crs_obj->getRefId(),$this->crs_obj->getId());
00515                                 continue;
00516                         }
00517                 }
00518                 sendInfo($this->lng->txt('crs_grouping_modified_assignment'));
00519                 $this->otherSelectAssign();
00520                 
00521                 return true;
00522         }
00523         // PRIVATE
00524         function __initGroupingObject()
00525         {
00526                 include_once './course/classes/class.ilObjCourseGrouping.php';
00527 
00528                 $this->grp_obj =& new ilObjCourseGrouping($this->id);
00529         }
00530 
00531         function __formatPath($a_path_arr)
00532         {
00533                 $counter = 0;
00534                 foreach($a_path_arr as $data)
00535                 {
00536                         if($counter++)
00537                         {
00538                                 $path .= " -> ";
00539                         }
00540                         $path .= $data['title'];
00541                 }
00542 
00543                 if(strlen($path) > 40)
00544                 {
00545                         return '...'.substr($path,-40);
00546                 }
00547                 return $path;
00548         }
00549 
00550 } // END class.ilObjCourseGrouping
00551 ?>