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class.ilParameterAppender.php
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1 <?php
2 /*
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4  | ILIAS open source |
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6  | Copyright (c) 1998-2001 ILIAS open source, University of Cologne |
7  | |
8  | This program is free software; you can redistribute it and/or |
9  | modify it under the terms of the GNU General Public License |
10  | as published by the Free Software Foundation; either version 2 |
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12  | |
13  | This program is distributed in the hope that it will be useful, |
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15  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16  | GNU General Public License for more details. |
17  | |
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20  | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21  +-----------------------------------------------------------------------------+
22 */
23 
24 define("LINKS_USER_ID",1);
25 define("LINKS_SESSION_ID",2);
26 define("LINKS_LOGIN",3);
27 define('LINKS_MATRICULATION',4);
28 
29 // Errors
30 define("LINKS_ERR_NO_NAME",1);
31 define("LINKS_ERR_NO_VALUE",2);
32 define("LINKS_ERR_NO_NAME_VALUE",3);
33 
42 class ilParameterAppender
43 {
44  var $webr_id = null;
45  var $db = null;
46 
47  var $err = null;
48 
49 
54  function ilParameterAppender($webr_id)
55  {
56  global $ilDB;
57 
58  $this->webr_id = $webr_id;
59  $this->db =& $ilDB;
60  }
61 
68  public static function getParameterIds($a_webr_id,$a_link_id)
69  {
70  global $ilDB;
71 
72  $query = "SELECT * FROM webr_params ".
73  "WHERE webr_id = ".$ilDB->quote($a_webr_id,'integer')." ".
74  "AND link_id = ".$ilDB->quote($a_link_id,'integer');
75  $res = $ilDB->query($query);
76  while($row = $res->fetchRow(DB_FETCHMODE_ASSOC))
77  {
78  $params[] = $row['param_id'];
79  }
80  return (array) $params;
81  }
82 
83  function getErrorCode()
84  {
85  return $this->err;
86  }
87 
88  // SET GET
89  public function setObjId($a_obj_id)
90  {
91  $this->webr_id = $a_obj_id;
92  }
93 
94  function getObjId()
95  {
96  return $this->webr_id;
97  }
98 
99  function setName($a_name)
100  {
101  $this->name = $a_name;
102  }
103  function getName()
104  {
105  return $this->name;
106  }
107  function setValue($a_value)
108  {
109  $this->value = $a_value;
110  }
111  function getValue()
112  {
113  return $this->value;
114  }
115 
116  function validate()
117  {
118  if(!strlen($this->getName()) and !$this->getValue())
119  {
120  $this->err = LINKS_ERR_NO_NAME_VALUE;
121  return false;
122  }
123  if(!strlen($this->getName()))
124  {
125  $this->err = LINKS_ERR_NO_NAME;
126  return false;
127  }
128  if(!$this->getValue())
129  {
130  $this->err = LINKS_ERR_NO_VALUE;
131  return false;
132  }
133  return true;
134  }
135 
136 
137  function add($a_link_id)
138  {
139  global $ilDB;
140 
141  if(!$a_link_id)
142  {
143  return false;
144  }
145  if(!strlen($this->getName() or !strlen($this->getValue())))
146  {
147  return false;
148  }
149 
150  $next_id = $ilDB->nextId('webr_params');
151  $query = "INSERT INTO webr_params (param_id,webr_id,link_id,name,value) ".
152  "VALUES( ".
153  $ilDB->quote($next_id,'integer').", ".
154  $ilDB->quote($this->getObjId() ,'integer').", ".
155  $ilDB->quote($a_link_id ,'integer').", ".
156  $ilDB->quote($this->getName() ,'text').", ".
157  $ilDB->quote($this->getValue() ,'integer').
158  ")";
159  $res = $ilDB->manipulate($query);
160 
161  return $next_id;
162  }
163 
164  function delete($a_param_id)
165  {
166  global $ilDB;
167 
168  $query = "DELETE FROM webr_params ".
169  "WHERE param_id = ".$ilDB->quote($a_param_id ,'integer')." ".
170  "AND webr_id = ".$ilDB->quote($this->getObjId(),'integer');
171  $res = $ilDB->manipulate($query);
172  return true;
173  }
174 
179  public static function _isEnabled()
180  {
181  global $ilSetting;
182 
183  return $ilSetting->get('links_dynamic',false) ? true : false;
184  }
185 
186  public static function _append($a_link_data)
187  {
188  global $ilUser;
189 
190  if(!is_array($a_link_data))
191  {
192  return false;
193  }
194  if(count($params = ilParameterAppender::_getParams($a_link_data['link_id'])))
195  {
196  // Check for prefix
197  foreach($params as $param_data)
198  {
199  if(!strpos($a_link_data['target'],'?'))
200  {
201  $a_link_data['target'] .= "?";
202  }
203  else
204  {
205  $a_link_data['target'] .= "&";
206  }
207  $a_link_data['target'] .= ($param_data['name']."=");
208  switch($param_data['value'])
209  {
210  case LINKS_LOGIN:
211  $a_link_data['target'] .= (urlencode($ilUser->getLogin()));
212  break;
213 
214  case LINKS_SESSION_ID:
215  $a_link_data['target'] .= (session_id());
216  break;
217 
218  case LINKS_USER_ID:
219  $a_link_data['target'] .= ($ilUser->getId());
220  break;
221 
222  case LINKS_MATRICULATION:
223  $a_link_data['target'] .= ($ilUser->getMatriculation());
224  break;
225  }
226  }
227  }
228  return $a_link_data;
229  }
230 
236  public static function _getParams($a_link_id)
237  {
238  global $ilDB;
239 
240  $res = $ilDB->query("SELECT * FROM webr_params WHERE link_id = ".
241  $ilDB->quote((int) $a_link_id ,'integer'));
242  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
243  {
244  $params[$row->param_id]['name'] = $row->name;
245  $params[$row->param_id]['value'] = $row->value;
246  }
247 
248  return count($params) ? $params : array();
249  }
250 
257  public static function parameterToInfo($a_name,$a_value)
258  {
259  $info = $a_name;
260 
261  switch($a_value)
262  {
263  case LINKS_USER_ID:
264  return $info.'=USER_ID';
265 
266  case LINKS_SESSION_ID:
267  return $info.'=SESSION_ID';
268 
269  case LINKS_LOGIN:
270  return $info.'=LOGIN';
271 
272  case LINKS_MATRICULATION:
273  return $info.'=MATRICULATION';
274  }
275  return '';
276  }
277 
278  function _deleteAll($a_webr_id)
279  {
280  global $ilDB;
281 
282  $query = "DELETE FROM webr_params WHERE webr_id = ".
283  $ilDB->quote((int) $a_webr_id ,'integer');
284  $res = $ilDB->manipulate($query);
285 
286  return true;
287  }
288 
293  public static function _getOptionSelect()
294  {
295  global $lng;
296 
297  return array(0 => $lng->txt('links_select_one'),
298  LINKS_USER_ID => $lng->txt('links_user_id'),
299  LINKS_LOGIN => $lng->txt('links_user_name'),
300  LINKS_SESSION_ID => $lng->txt('links_session_id'),
301  LINKS_MATRICULATION => $lng->txt('matriculation')
302  );
303  }
304 }
305 ?>