ILIAS Release_3_7_x_branch .rev 46817: classes/class.ilForumImportParser.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 require_once("classes/class.ilSaxParser.php");
00025 
00035 class ilForumImportParser extends ilSaxParser
00036 {
00037         var $parent;
00038         var $counter;
00039 
00048         function ilForumImportParser($a_xml_file,$a_parent_id)
00049         {
00050                 define('EXPORT_VERSION',4);
00051 
00052                 parent::ilSaxParser($a_xml_file);
00053 
00054                 // SET MEMBER VARIABLES
00055                 $this->parent = $a_parent_id;
00056                 $this->counter = 0;
00057 
00058         }
00059 
00060 
00061         function getParent()
00062         {
00063                 return $this->parent;
00064         }
00065 
00066         function __pushParentId($a_id)
00067         {
00068                 $this->parent[] = $a_id;
00069         }
00070         function __popParentId()
00071         {
00072                 array_pop($this->parent);
00073 
00074                 return true;
00075         }
00076         function __getParentId()
00077         {
00078                 return $this->parent[count($this->parent) - 1];
00079         }
00080         
00081         function getRefId()
00082         {
00083                 return $this->ref_id;
00084         }
00085 
00086 
00092         function setHandlers($a_xml_parser)
00093         {
00094                 xml_set_object($a_xml_parser,$this);
00095                 xml_set_element_handler($a_xml_parser,'handlerBeginTag','handlerEndTag');
00096                 xml_set_character_data_handler($a_xml_parser,'handlerCharacterData');
00097         }
00098 
00102         function startParsing()
00103         {
00104                 // SET FIRST PARENT
00105                 parent::startParsing();
00106 
00107                 return true;
00108         }
00109 
00110 
00114         function handlerBeginTag($a_xml_parser, $a_name, $a_attribs)
00115         {
00116                 global $ilErr;
00117 
00118                 switch($a_name)
00119                 {
00120                         // FORUM DATA
00121                         case "forum":
00122                                 if($a_attribs["exportVersion"] < EXPORT_VERSION)
00123                                 {
00124                                         $ilErr->raiseError("!!! This export Version isn't supported, update your ILIAS 2 installation"
00125                                                                            ,$ilErr->WARNING);   
00126                                 }
00127                                 $this->__createNew($a_attribs["id"]);
00128 
00129                                 // FINALLY SET FIRST PARENT
00130                                 $this->parent = array(0);
00131                                 break;
00132 
00133                         case "title":
00134                         case "description":
00135                                 $this->cdata = '';
00136                                 break;
00137 
00138                         case "moderator":
00139                                 if($mod = ilObjUser::_getImportedUserId($a_attribs["id"]))
00140                                 {
00141                                         $this->__addModerator($mod);
00142                                 }
00143                         // THREAD DATA
00144                         case "thread":
00145                                 // EMPTY DATA ARRAY
00146                                 $this->thread = array();
00147                                 $this->thread_start = true;
00148                                 $this->__pushParentId(0);
00149                                 #this->parent = array(0);
00150                                 break;
00151 
00152                         case "threadAuthor":
00153                                 $this->thread["author"] = ilObjUser::_getImportedUserId($a_attribs["id"]);
00154                                 $this->thread["login"] = $a_attribs["login"];
00155                                 break;
00156 
00157                         // POST DATA
00158                         case "posting":
00159                                 // EMPTY DATA ARRAY
00160                                 $this->post = array();
00161                                 break;
00162 
00163                         case "postingAuthor":
00164                                 $this->post["author"] = ilObjUser::_getImportedUserId($a_attribs["id"]);
00165                                 $this->post["login"] = $a_attribs["login"];
00166                                 break;
00167                                 
00168                 }
00169         }
00170 
00171 
00175         function handlerEndTag($a_xml_parser, $a_name)
00176         {
00177                 switch($a_name)
00178                 {
00179                         // FORUM DATA
00180                         case "title":
00181                                 $this->forum->setTitle($this->cdata);
00182                                 $this->forum->update();
00183                                 break;
00184 
00185                         case "description":
00186                                 $this->forum->setDescription($this->cdata);
00187                                 $this->forum->update();
00188 
00189                                 // DATA COMPLETE UPDATE 'Topic_data'
00190                                 $this->__addTopic();
00191                                 break;
00192 
00193                         // THREAD DATA 
00194                         case "thread":
00195                                 $this->__popParentId();
00196                                 #unset($this->parent[count($this->parent)-1]);
00197                                 break;
00198         
00199                         case "threadTitle":
00200                                 $this->thread["title"] = $this->cdata;
00201                                 break;
00202 
00203                         case "threadCreationDate":
00204                                 $this->thread["c_time"] = $this->cdata;
00205                                 break;
00206                                 
00207                         // POST DATA
00208                         case "posting":
00209                                 $this->__popParentId();
00210                                 #unset($this->parent[count($this->parent)-1]);
00211                                 break;
00212 
00213                         case "postingTitle":
00214                                 $this->post["title"] = $this->cdata;
00215                                 break;
00216 
00217                         case "postingCreationDate":
00218                                 $this->post["c_time"] = $this->cdata;
00219                                 break;
00220 
00221                         case "message":
00222                                 $this->post["message"] = $this->cdata;
00223 
00224                                 // ALL DATA COMPLETE, INSERT NODE HERE
00225                                 if($this->thread_start)
00226                                 {
00227                                         $this->__addThread();
00228                                         $this->thread_start = false;
00229                                 }
00230                                 else
00231                                 {
00232                                         $this->__addPost();
00233                                 }
00234                                 break;
00235 
00236                         case "forum":
00237                                 break;
00238 
00239                 }
00240                 $this->cdata = '';
00241         }
00242 
00243 
00247         function handlerCharacterData($a_xml_parser, $a_data)
00248         {
00249                 // i don't know why this is necessary, but
00250                 // the parser seems to convert "&gt;" to ">" and "&lt;" to "<"
00251                 // in character data, but we don't want that, because it's the
00252                 // way we mask user html in our content, so we convert back...
00253                 $a_data = str_replace("<","&lt;",$a_data);
00254                 $a_data = str_replace(">","&gt;",$a_data);
00255 
00256                 if(!empty($a_data))
00257                 {
00258                         $this->cdata .= $a_data;
00259                 }
00260         }
00261         
00262         // PRIVATE
00263         function __createNew($a_id)
00264         {
00265                 include_once "classes/class.ilObjForum.php";
00266 
00267                 $this->forum =& new ilObjForum();
00268                 $this->forum->setImportId($a_id);
00269                 $this->forum->setTitle("empty");
00270                 $this->forum->create();
00271                 $this->forum->createReference();
00272                 //$this->forum->putInTree($this->getParent());
00273                 $this->forum->putInTree($_GET["ref_id"]);
00274 
00275                 // INIT DEFAULT PERMISSIONS
00276                 $this->forum->setPermissions($this->forum->getRefId());
00277 
00278                 // INIT DEFAULT MODERATOR ROLE
00279                 $this->roles = $this->forum->initDefaultRoles();
00280 
00281 
00282                 $this->ref_id = $this->forum->getRefId();
00283 
00284                 
00285                 return true;
00286         }
00287 
00288         function __addThread()
00289         {
00290                 $this->__initForumObject();
00291 
00292                 $this->forum_obj->setImportName($this->thread["login"]);
00293                 $this->forum_obj->setWhereCondition("top_frm_fk = ".$this->forum->getId());
00294                 $topic = $this->forum_obj->getOneTopic();
00295 
00296                 // GENERATE IT AND 'INCREMENT' parent variable
00297 /*              $this->parent[] = (int) $this->forum_obj->generateThread($topic["top_pk"],$this->thread["author"],
00298                                                                                                                                  $this->thread["title"],
00299                                                                                                                                  $this->post["message"],0,0,0,date("Y-m-d H:i:s",$this->thread["c_time"]));*/
00300                 $this->__pushParentId((int) $this->forum_obj->generateThread($topic["top_pk"],$this->thread["author"],
00301                                                                                                                                          $this->thread["title"],
00302                                                                                                                                          $this->post["message"],0,0,0,date("Y-m-d H:i:s",$this->thread["c_time"])));
00303                 
00304                 $this->forum_obj->setDbTable("frm_data");
00305                 $this->forum_obj->setWhereCondition("top_pk = ".$topic["top_pk"]);
00306                 $this->forum_obj->updateVisits($topic["top_pk"]);
00307 
00308         }
00309 
00310         function __addPost()
00311         {
00312                 $this->forum_obj->setImportName($this->post["login"]);
00313                 $this->forum_obj->setWhereCondition("top_frm_fk = ".$this->forum->getId());
00314                 $topic = $this->forum_obj->getOneTopic();
00315                 $post = $this->forum_obj->getPostById($this->__getParentId());
00316                 #$post = $this->forum_obj->getPostById($this->parent[count($this->parent)-1]);
00317                 
00318 /*              $this->parent[] = (int) $this->forum_obj->generatePost($topic["top_pk"],$post["pos_thr_fk"],$this->post["author"],
00319                                                                                                                            $this->post["message"],$this->parent[count($this->parent)-1],
00320                                                                                                                            0,$this->post["title"],date("Y-m-d H:i:s",$this->post["c_time"]));*/
00321                 $this->__pushParentId((int) $this->forum_obj->generatePost($topic["top_pk"],$post["pos_thr_fk"],$this->post["author"],
00322                                                                                                                                  $this->post["message"],$this->parent[count($this->parent)-1],
00323                                                                                                                                  0,0,$this->post["title"],date("Y-m-d H:i:s",$this->post["c_time"])));
00324 
00325                 return true;
00326         }
00327 
00328         function __initForumObject()
00329         {
00330                 include_once "classes/class.ilForum.php";
00331 
00332                 $this->forum_obj =& new ilForum();
00333                 $this->forum_obj->setForumRefId($this->ref_id);
00334 
00335                 return true;
00336         }
00337 
00338         function __addTopic()
00339         {
00340                 global $ilDB;
00341 
00342                 $query = "INSERT INTO frm_data VALUES('0','".
00343                         $this->forum->getId()."','".
00344                         ilUtil::prepareDBString($this->forum->getTitle())."','".
00345                         ilUtil::prepareDBString($this->forum->getDescription())."','".
00346                         "0','0','".
00347                         "','".$this->roles[0]."','".
00348                         date("Y:m:d H:i:s")."','".
00349                         "0','".
00350                         date("Y:m:d H:i:s")."','".
00351                         "0','".
00352                         $_SESSION["AccountId"]."')";
00353                 
00354                 $ilDB->query($query);
00355 
00356                 // TO ENSURE THERE IS MINIMUM ONE MODERATOR 
00357                 $this->__addModerator($_SESSION["AccountId"]);
00358                 return true;
00359         }
00360 
00361         function __addModerator($id)
00362         {
00363                 global $rbacadmin;
00364 
00365                 $rbacadmin->assignUser($this->roles[0],$id, "n");
00366                 ilObjUser::updateActiveRoles($id);
00367 
00368                 return true;
00369         }
00370                 
00371 
00372 }
00373 ?>