ILIAS Release_3_3_x_branch .rev 46803: course/classes/class.ilCourseRegisterGUI.php Source File

Go to the documentation of this file.
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 
00035 class ilCourseRegisterGUI
00036 {
00037         var $ctrl;
00038         var $ilias;
00039         var $tree;
00040         var $ilErr;
00041         var $lng;
00042         var $tpl;
00043 
00044         var $course_obj;
00045         var $course_id;
00046         var $user_id;
00047         
00048         function ilCourseRegisterGUI($a_course_id)
00049         {
00050                 global $ilCtrl,$lng,$ilErr,$ilias,$tpl,$tree;
00051 
00052                 $this->ctrl =& $ilCtrl;
00053                 $this->ctrl->saveParameter($this,array("ref_id"));
00054 
00055                 $this->ilErr =& $ilErr;
00056                 $this->lng =& $lng;
00057                 $this->tpl =& $tpl;
00058                 $this->tree =& $tree;
00059 
00060                 $this->user_id = $ilias->account->getId();
00061 
00062                 $this->course_id = $a_course_id;
00063                 $this->__initCourseObject();
00064         }
00065 
00069         function &executeCommand()
00070         {
00071                 $cmd = $this->ctrl->getCmd();
00072 
00073                 if (!$cmd = $this->ctrl->getCmd())
00074                 {
00075                         $cmd = "showRegistrationForm";
00076                 }
00077                 $this->$cmd();
00078         }
00079 
00080         function cancel()
00081         {
00082                 sendInfo($this->lng->txt("action_aborted"),true);
00083 
00084                 $this->ctrl->setParameterByClass("ilRepositoryGUI","ref_id",$this->tree->getParentId($this->course_id));
00085                 $this->ctrl->redirectByClass("ilRepositoryGUI","ShowList");
00086                 
00087         }
00088 
00089         function subscribe()
00090         {
00091                 switch($this->course_obj->getSubscriptionType())
00092                 {
00093                         case $this->course_obj->SUBSCRIPTION_DEACTIVATED:
00094                                 $this->ilErr->raiseError($this->lng->txt("err_unknown_error"),$this->ilErr->MESSAGE);
00095                                 exit;
00096 
00097                         case $this->course_obj->SUBSCRIPTION_DIRECT:
00098                                 
00099                                 $tmp_obj =& ilObjectFactory::getInstanceByObjId($this->user_id);
00100 
00101                                 if($this->course_obj->members_obj->add($tmp_obj,$this->course_obj->members_obj->ROLE_MEMBER))
00102                                 {
00103                                         $this->course_obj->members_obj->sendNotification($this->course_obj->members_obj->NOTIFY_ADMINS,$this->user_id);
00104                                         ilObjUser::updateActiveRoles($this->user_id);
00105                                         sendInfo($this->lng->txt("crs_subscription_successful"),true);
00106                                         $this->ctrl->returnToParent($this);
00107                                 }
00108                                 else
00109                                 {
00110                                         sendInfo("err_unknown_error");
00111                                         $this->showRegistrationForm();
00112                                 }
00113                                 break;
00114 
00115                         case $this->course_obj->SUBSCRIPTION_CONFIRMATION:
00116 
00117                                 if($this->course_obj->members_obj->addSubscriber($this->user_id))
00118                                 {
00119                                         $this->course_obj->members_obj->sendNotification($this->course_obj->members_obj->NOTIFY_ADMINS,$this->user_id);
00120                                         sendInfo($this->lng->txt("crs_subscription_successful"),true);
00121                                         $this->ctrl->setParameterByClass("ilRepositoryGUI","ref_id",$this->tree->getParentId($this->course_id));
00122                                         $this->ctrl->redirectByClass("ilRepositoryGUI","ShowList");
00123                                 }
00124                                 else
00125                                 {
00126                                         sendInfo("err_unknown_error");
00127                                         $this->showRegistrationForm();
00128                                 }
00129                                 break;
00130 
00131                         case $this->course_obj->SUBSCRIPTION_PASSWORD:
00132 
00133                                 $tmp_obj =& ilObjectFactory::getInstanceByObjId($this->user_id);
00134 
00135                                 if($this->course_obj->getSubscriptionPassword() != $_POST["password"])
00136                                 {
00137                                         sendInfo($this->lng->txt("crs_password_not_valid"),true);
00138                                         $this->showRegistrationForm();
00139                                 }
00140                                 else if($this->course_obj->members_obj->add($tmp_obj,$this->course_obj->members_obj->ROLE_MEMBER))
00141                                 {
00142                                         $this->course_obj->members_obj->sendNotification($this->course_obj->members_obj->NOTIFY_ADMINS,$this->user_id);
00143                                         ilObjUser::updateActiveRoles($this->user_id);
00144                                         sendInfo($this->lng->txt("crs_subscription_successful"),true);
00145                                         $this->ctrl->returnToParent($this);
00146                                 }
00147                                 else
00148                                 {
00149                                         sendInfo("err_unknown_error");
00150                                         $this->showRegistrationForm();
00151                                 }
00152                                 break;
00153                 }
00154         }
00155 
00156         function showRegistrationForm()
00157         {
00158                 $really_submit = $this->__validateStatus();
00159 
00160                 if($this->course_obj->getMessage())
00161                 {
00162                         sendInfo($this->course_obj->getMessage());
00163                 }
00164 
00165                 $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.crs_subscription.html","course");
00166                 $this->tpl->setVariable("FORMACTION",$this->ctrl->getFormActionByClass("ilObjCourseGUI"));
00167                 
00168                 $this->tpl->setVariable("TYPE_IMG",ilUtil::getImagePath("icon_crs.gif"));
00169                 $this->tpl->setVariable("ALT_IMG",$this->lng->txt("obj_crs"));
00170                 $this->tpl->setVariable("TITLE",$this->lng->txt("crs_registration"));
00171 
00172                 $this->tpl->setVariable("TXT_SYLLABUS",$this->lng->txt("crs_syllabus"));
00173                 $this->tpl->setVariable("SYLLABUS",nl2br($this->course_obj->getSyllabus()));
00174 
00175                 $this->tpl->setVariable("TXT_INFO_REG",$this->lng->txt("crs_info_reg"));
00176 
00177                 switch($this->course_obj->getSubscriptionType())
00178                 {
00179                         case $this->course_obj->SUBSCRIPTION_DEACTIVATED:
00180                                 $this->tpl->setVariable("INFO_REG",$this->lng->txt("crs_info_reg_deactivated"));
00181                                 break;
00182                         case $this->course_obj->SUBSCRIPTION_CONFIRMATION:
00183                                 $this->tpl->setVariable("INFO_REG",$this->lng->txt("crs_info_reg_confirmation"));
00184                                 break;
00185                         case $this->course_obj->SUBSCRIPTION_DIRECT:
00186                                 $this->tpl->setVariable("INFO_REG",$this->lng->txt("crs_info_reg_direct"));
00187                                 break;
00188                         case $this->course_obj->SUBSCRIPTION_PASSWORD:
00189                                 $this->tpl->setVariable("INFO_REG",$this->lng->txt("crs_info_reg_password"));
00190                                 break;
00191                 }
00192 
00193                 if($this->course_obj->getSubscriptionType() != $this->course_obj->SUBSCRIPTION_DEACTIVATED)
00194                 {
00195                         $this->tpl->setCurrentBlock("reg_until");
00196                         $this->tpl->setVariable("TXT_REG_UNTIL",$this->lng->txt("crs_reg_until"));
00197 
00198                         if($this->course_obj->getSubscriptionUnlimitedStatus())
00199                         {
00200                                 $this->tpl->setVariable("REG_UNTIL",$this->lng->txt("crs_unlimited"));
00201                         }
00202                         else if($this->course_obj->getSubscriptionStart() < time())
00203                         {
00204                                 $this->tpl->setVariable("FROM",$this->lng->txt("crs_to"));
00205                                 $this->tpl->setVariable("REG_UNTIL",strftime("%c",$this->course_obj->getSubscriptionEnd()));
00206                         }
00207                         else if($this->course_obj->getSubscriptionStart() > time())
00208                         {
00209                                 $this->tpl->setVariable("FROM",$this->lng->txt("crs_from"));
00210                                 $this->tpl->setVariable("REG_UNTIL",strftime("%c",$this->course_obj->getSubscriptionStart()));
00211                         }
00212                         $this->tpl->parseCurrentBlock();
00213                 }
00214 
00215                 if($this->course_obj->getSubscriptionType() == $this->course_obj->SUBSCRIPTION_PASSWORD and
00216                    $this->course_obj->inSubscriptionTime())
00217                 {
00218                         $this->tpl->setCurrentBlock("pass");
00219                         $this->tpl->setVariable("TXT_PASSWORD",$this->lng->txt("crs_access_password"));
00220                         $this->tpl->parseCurrentBlock();
00221                 }
00222 
00223                 $this->tpl->setVariable("TXT_CANCEL",$this->lng->txt("cancel"));
00224 
00225                 if($really_submit)
00226                 {
00227                         $this->tpl->setCurrentBlock("go");
00228                         $this->tpl->setVariable("CMD_SUBMIT","subscribe");
00229                         $this->tpl->setVariable("TXT_SUBMIT",$this->lng->txt("register"));
00230                         $this->tpl->parseCurrentBlock();
00231                 }
00232                         
00233 
00234                 return true;
00235         }
00236 
00237 
00238         // PRIVATE
00239         function __initCourseObject()
00240         {
00241                 if(!$this->course_obj =& ilObjectFactory::getInstanceByRefId($this->course_id,false))
00242                 {
00243                         $this->ilErr->raiseError("ilCourseRegisterGUI: cannot create course object",$this->ilErr->MESSAGE);
00244                         exit;
00245                 }
00246                 $this->course_obj->initCourseMemberObject();
00247 
00248                 return true;
00249         }
00250 
00251         function __validateStatus()
00252         {
00253                 $this->course_obj->setMessage('');
00254 
00255                 if($this->course_obj->members_obj->isAssigned($this->user_id))
00256                 {
00257                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_user_already_assigned"));
00258                 }
00259                 if($this->course_obj->members_obj->isBlocked($this->user_id))
00260                 {
00261                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_user_blocked"));
00262                 }
00263                 if($this->course_obj->members_obj->isSubscriber($this->user_id))
00264                 {
00265                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_user_already_subscribed"));
00266                 }
00267                 if($this->course_obj->getSubscriptionType() == $this->course_obj->SUBSCRIPTION_DEACTIVATED)
00268                 {
00269                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_subscription_deactivated"));
00270                 }
00271                 if(!$this->course_obj->getSubscriptionUnlimitedStatus() and
00272                    ( time() < $this->course_obj->getSubscriptionStart()))
00273                 {
00274                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_subscription_start_later"));
00275                 }
00276                 if(!$this->course_obj->getSubscriptionUnlimitedStatus() and
00277                    ( time() > $this->course_obj->getSubscriptionEnd()))
00278                 {
00279                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_subscription_end_earlier"));
00280                 }
00281                 if($this->course_obj->getSubscriptionMaxMembers() and 
00282                    ($this->course_obj->members_obj->getCountMembers() >= $this->course_obj->getSubscriptionMaxMembers()))
00283                 {
00284                         $this->course_obj->appendMessage($this->lng->txt("crs_reg_subscription_max_members_reached"));
00285                 }
00286 
00287                 return $this->course_obj->getMessage() ? false : true;
00288         }
00289 }
00290 ?>