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class.ilMDTaxonPath.php
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1 <?php
2 /*
3  +-----------------------------------------------------------------------------+
4  | ILIAS open source |
5  +-----------------------------------------------------------------------------+
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 |
11  | of the License, or (at your option) any later version. |
12  | |
13  | This program is distributed in the hope that it will be useful, |
14  | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16  | GNU General Public License for more details. |
17  | |
18  | You should have received a copy of the GNU General Public License |
19  | along with this program; if not, write to the Free Software |
20  | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21  +-----------------------------------------------------------------------------+
22 */
23 
24 
31 include_once 'class.ilMDBase.php';
32 
33 class ilMDTaxonPath extends ilMDBase
34 {
35  function ilMDTaxonPath($a_rbac_id = 0,$a_obj_id = 0,$a_obj_type = '')
36  {
37  parent::ilMDBase($a_rbac_id,
38  $a_obj_id,
39  $a_obj_type);
40  }
41 
42  // METHODS OF CHILD OBJECTS (Taxon)
43  function &getTaxonIds()
44  {
45  include_once 'Services/MetaData/classes/class.ilMDTaxon.php';
46 
47  return ilMDTaxon::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_taxon_path');
48  }
49  function &getTaxon($a_taxon_id)
50  {
51  include_once 'Services/MetaData/classes/class.ilMDTaxon.php';
52 
53  if(!$a_taxon_id)
54  {
55  return false;
56  }
57  $tax =& new ilMDTaxon();
58  $tax->setMetaId($a_taxon_id);
59 
60  return $tax;
61  }
62  function &addTaxon()
63  {
64  include_once 'Services/MetaData/classes/class.ilMDTaxon.php';
65 
66  $tax =& new ilMDTaxon($this->getRBACId(),$this->getObjId(),$this->getObjType());
67  $tax->setParentId($this->getMetaId());
68  $tax->setParentType('meta_taxon_path');
69 
70  return $tax;
71  }
72 
73  // SET/GET
74  function setSource($a_source)
75  {
76  $this->source = $a_source;
77  }
78  function getSource()
79  {
80  return $this->source;
81  }
82  function setSourceLanguage(&$lng_obj)
83  {
84  if(is_object($lng_obj))
85  {
86  $this->source_language = $lng_obj;
87  }
88  }
89  function &getSourceLanguage()
90  {
91  return is_object($this->source_language) ? $this->source_language : false;
92  }
93  function getSourceLanguageCode()
94  {
95  return is_object($this->source_language) ? $this->source_language->getLanguageCode() : false;
96  }
97 
98 
99  function save()
100  {
101  global $ilDB;
102 
103  $fields = $this->__getFields();
104  $fields['meta_taxon_path_id'] = array('integer',$next_id = $ilDB->nextId('il_meta_taxon_path'));
105 
106  if($this->db->insert('il_meta_taxon_path',$fields))
107  {
108  $this->setMetaId($next_id);
109  return $this->getMetaId();
110  }
111  return false;
112  }
113 
114  function update()
115  {
116  global $ilDB;
117 
118  if($this->getMetaId())
119  {
120  if($this->db->update('il_meta_taxon_path',
121  $this->__getFields(),
122  array("meta_taxon_path_id" => array('integer',$this->getMetaId()))))
123  {
124  return true;
125  }
126  }
127  return false;
128  }
129 
130  function delete()
131  {
132  global $ilDB;
133 
134  if($this->getMetaId())
135  {
136  $query = "DELETE FROM il_meta_taxon_path ".
137  "WHERE meta_taxon_path_id = ".$ilDB->quote($this->getMetaId(), 'integer');
138  $res = $ilDB->manipulate($query);
139 
140  foreach($this->getTaxonIds() as $id)
141  {
142  $tax = $this->getTaxon($id);
143  $tax->delete();
144  }
145 
146  return true;
147  }
148  return false;
149  }
150 
151 
152  function __getFields()
153  {
154  return array('rbac_id' => array('integer',$this->getRBACId()),
155  'obj_id' => array('integer',$this->getObjId()),
156  'obj_type' => array('text',$this->getObjType()),
157  'parent_type' => array('text',$this->getParentType()),
158  'parent_id' => array('integer',$this->getParentId()),
159  'source' => array('text',$this->getSource()),
160  'source_language' => array('text',$this->getSourceLanguageCode()));
161  }
162 
163  function read()
164  {
165  global $ilDB;
166 
167  include_once 'Services/MetaData/classes/class.ilMDLanguageItem.php';
168 
169  if($this->getMetaId())
170  {
171  $query = "SELECT * FROM il_meta_taxon_path ".
172  "WHERE meta_taxon_path_id = ".$ilDB->quote($this->getMetaId() ,'integer');
173 
174  $res = $ilDB->query($query);
175  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
176  {
177  $this->setRBACId($row->rbac_id);
178  $this->setObjId($row->obj_id);
179  $this->setObjType($row->obj_type);
180  $this->setParentId($row->parent_id);
181  $this->setParentType($row->parent_type);
182  $this->setSource($row->source);
183  $this->source_language = new ilMDLanguageItem($row->source_language);
184  }
185  }
186  return true;
187  }
188 
189  /*
190  * XML Export of all meta data
191  * @param object (xml writer) see class.ilMD2XML.php
192  *
193  */
194  function toXML(&$writer)
195  {
196  $writer->xmlStartTag('TaxonPath');
197 
198  $writer->xmlElement('Source',array('Language' => $this->getSourceLanguageCode()
199  ? $this->getSourceLanguageCode()
200  : 'en'),
201  $this->getSource());
202 
203  // Taxon
204  $taxs = $this->getTaxonIds();
205  foreach($taxs as $id)
206  {
207  $tax =& $this->getTaxon($id);
208  $tax->toXML($writer);
209  }
210  if(!count($taxs))
211  {
212  include_once 'Services/MetaData/classes/class.ilMDTaxon.php';
213  $tax = new ilMDTaxon($this->getRBACId(),$this->getObjId());
214  $tax->toXML($writer);
215  }
216 
217  $writer->xmlEndTag('TaxonPath');
218  }
219 
220 
221 
222  // STATIC
223  function _getIds($a_rbac_id,$a_obj_id,$a_parent_id,$a_parent_type)
224  {
225  global $ilDB;
226 
227  $query = "SELECT meta_taxon_path_id FROM il_meta_taxon_path ".
228  "WHERE rbac_id = ".$ilDB->quote($a_rbac_id ,'integer')." ".
229  "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer')." ".
230  "AND parent_id = ".$ilDB->quote($a_parent_id ,'integer')." ".
231  "AND parent_type = ".$ilDB->quote($a_parent_type ,'text');
232 
233  $res = $ilDB->query($query);
234  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
235  {
236  $ids[] = $row->meta_taxon_path_id;
237  }
238  return $ids ? $ids : array();
239  }
240 }
241 ?>