ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
class.ilMDMetaMetadata.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
31include_once 'class.ilMDBase.php';
32
33class ilMDMetaMetadata extends ilMDBase
34{
35
36 function ilMDMetaMetadata($a_rbac_id = 0,$a_obj_id = 0,$a_obj_type = '')
37 {
38 parent::ilMDBase($a_rbac_id,
39 $a_obj_id,
40 $a_obj_type);
41 }
42
43 // SUBELEMENTS
44 function &getIdentifierIds()
45 {
46 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDIdentifier.php';
47
48 return ilMDIdentifier::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_meta_data');
49 }
50 function &getIdentifier($a_identifier_id)
51 {
52 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDIdentifier.php';
53
54 if(!$a_identifier_id)
55 {
56 return false;
57 }
58 $ide =& new ilMDIdentifier();
59 $ide->setMetaId($a_identifier_id);
60
61 return $ide;
62 }
63 function &addIdentifier()
64 {
65 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDIdentifier.php';
66
67 $ide =& new ilMDIdentifier($this->getRBACId(),$this->getObjId(),$this->getObjType());
68 $ide->setParentId($this->getMetaId());
69 $ide->setParentType('meta_meta_data');
70
71 return $ide;
72 }
73
74 function &getContributeIds()
75 {
76 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDContribute.php';
77
78 return ilMDContribute::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_meta_data');
79 }
80 function &getContribute($a_contribute_id)
81 {
82 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDContribute.php';
83
84 if(!$a_contribute_id)
85 {
86 return false;
87 }
88 $con =& new ilMDContribute();
89 $con->setMetaId($a_contribute_id);
90
91 return $con;
92 }
93 function &addContribute()
94 {
95 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDContribute.php';
96
97 $con =& new ilMDContribute($this->getRBACId(),$this->getObjId(),$this->getObjType());
98 $con->setParentId($this->getMetaId());
99 $con->setParentType('meta_meta_data');
100
101 return $con;
102 }
103
104
105
106 // SET/GET
107 function setMetaDataScheme($a_val)
108 {
109 $this->meta_data_scheme = $a_val;
110 }
112 {
113 // Fixed attribute
114 return 'LOM v 1.0';
115 }
116 function setLanguage(&$lng_obj)
117 {
118 if(is_object($lng_obj))
119 {
120 $this->language = $lng_obj;
121 }
122 }
123 function &getLanguage()
124 {
125 return is_object($this->language) ? $this->language : false;
126 }
128 {
129 return is_object($this->language) ? $this->language->getLanguageCode() : false;
130 }
131
132
133 function save()
134 {
135 if($this->db->autoExecute('il_meta_meta_data',
136 $this->__getFields(),
137 DB_AUTOQUERY_INSERT))
138 {
139 $this->setMetaId($this->db->getLastInsertId());
140
141 return $this->getMetaId();
142 }
143 return false;
144 }
145
146 function update()
147 {
148 global $ilDB;
149
150 if($this->getMetaId())
151 {
152 if($this->db->autoExecute('il_meta_meta_data',
153 $this->__getFields(),
154 DB_AUTOQUERY_UPDATE,
155 "meta_meta_data_id = ".$ilDB->quote($this->getMetaId())))
156 {
157 return true;
158 }
159 }
160 return false;
161 }
162
163 function delete()
164 {
165 global $ilDB;
166
167 if($this->getMetaId())
168 {
169 $query = "DELETE FROM il_meta_meta_data ".
170 "WHERE meta_meta_data_id = ".$ilDB->quote($this->getMetaId());
171
172 $this->db->query($query);
173
174
175 foreach($this->getIdentifierIds() as $id)
176 {
177 $ide = $this->getIdentifier($id);
178 $ide->delete();
179 }
180
181 foreach($this->getContributeIds() as $id)
182 {
183 $con = $this->getContribute($id);
184 $con->delete();
185 }
186 return true;
187 }
188
189 return false;
190 }
191
192
193 function __getFields()
194 {
195 return array('rbac_id' => $this->getRBACId(),
196 'obj_id' => $this->getObjId(),
197 'obj_type' => ilUtil::prepareDBString($this->getObjType()),
198 'meta_data_scheme' => ilUtil::prepareDBString($this->getMetaDataScheme()),
199 'language' => ilUtil::prepareDBString($this->getLanguageCode()));
200 }
201
202 function read()
203 {
204 global $ilDB;
205
206 include_once 'Services/Migration/DBUpdate_426/classes/class.ilMDLanguageItem.php';
207
208
209 if($this->getMetaId())
210 {
211
212 $query = "SELECT * FROM il_meta_meta_data ".
213 "WHERE meta_meta_data_id = ".$ilDB->quote($this->getMetaId());
214
215
216 $res = $this->db->query($query);
217 while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
218 {
219 $this->setRBACId($row->rbac_id);
220 $this->setObjId($row->obj_id);
221 $this->setObjType($row->obj_type);
222 $this->setMetaDataScheme(ilUtil::stripSlashes($row->meta_data_scheme));
223 $this->setLanguage(new ilMDLanguageItem($row->language));
224 }
225 return true;
226 }
227 return false;
228 }
229
230 /*
231 * XML Export of all meta data
232 * @param object (xml writer) see class.ilMD2XML.php
233 *
234 */
235 function toXML(&$writer)
236 {
237 if($this->getMigration/DBUpdate_426Scheme())
238 {
239 $attr['Metadata-Scheme'] = $this->getMigration/DBUpdate_426Scheme();
240 }
241 if($this->getLanguageCode())
242 {
243 $attr['Language'] = $this->getLanguageCode();
244 }
245 $writer->xmlStartTag('Meta-Metadata',$attr ? $attr : null);
246
247 // ELEMENT IDENTIFIER
248 foreach($this->getIdentifierIds() as $id)
249 {
250 $ide =& $this->getIdentifier($id);
251 $ide->toXML($writer);
252 }
253
254 // ELEMETN Contribute
255 foreach($this->getContributeIds() as $id)
256 {
257 $con =& $this->getContribute($id);
258 $con->toXML($writer);
259 }
260
261 $writer->xmlEndTag('Meta-Metadata');
262 }
263
264 // STATIC
265 function _getId($a_rbac_id,$a_obj_id)
266 {
267 global $ilDB;
268
269 $query = "SELECT meta_meta_data_id FROM il_meta_meta_data ".
270 "WHERE rbac_id = ".$ilDB->quote($a_rbac_id)." ".
271 "AND obj_id = ".$ilDB->quote($a_obj_id);
272
273 $res = $ilDB->query($query);
274 while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
275 {
276 return $row->meta_meta_data_id;
277 }
278 return false;
279 }
280}
281?>
const DB_FETCHMODE_OBJECT
Definition: class.ilDB.php:11
setObjId($a_id)
setMetaId($a_meta_id, $a_read_data=true)
setObjType($a_type)
setRBACId($a_id)
_getIds($a_rbac_id, $a_obj_id, $a_parent_id, $a_parent_type)
_getIds($a_rbac_id, $a_obj_id, $a_parent_id, $a_parent_type)
_getId($a_rbac_id, $a_obj_id)
& getContribute($a_contribute_id)
& getIdentifier($a_identifier_id)
ilMDMetaMetadata($a_rbac_id=0, $a_obj_id=0, $a_obj_type='')
static prepareDBString($a_str)
prepare a string for db writing (insert/update)
static stripSlashes($a_str, $a_strip_html=true, $a_allow="")
strip slashes if magic qoutes is enabled
global $ilDB