ILIAS  eassessment Revision 61809
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class.ilMDContribute.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 |
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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  | |
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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 
32 include_once 'class.ilMDBase.php';
33 
34 class ilMDContribute extends ilMDBase
35 {
36  function ilMDContribute($a_rbac_id = 0,$a_obj_id = 0,$a_obj_type = '')
37  {
38  parent::ilMDBase($a_rbac_id,
39  $a_obj_id,
40  $a_obj_type);
41  }
42 
43 
44  // Subelements
45  function &getEntityIds()
46  {
47  include_once 'Services/MetaData/classes/class.ilMDEntity.php';
48 
49  return ilMDEntity::_getIds($this->getRBACId(),$this->getObjId(),$this->getMetaId(),'meta_contribute');
50  }
51  function &getEntity($a_entity_id)
52  {
53  include_once 'Services/MetaData/classes/class.ilMDEntity.php';
54 
55  if(!$a_entity_id)
56  {
57  return false;
58  }
59  $ent =& new ilMDEntity();
60  $ent->setMetaId($a_entity_id);
61 
62  return $ent;
63  }
64  function &addEntity()
65  {
66  include_once 'Services/MetaData/classes/class.ilMDEntity.php';
67 
68  $ent = new ilMDEntity($this->getRBACId(),$this->getObjId(),$this->getObjType());
69  $ent->setParentId($this->getMetaId());
70  $ent->setParentType('meta_contribute');
71 
72  return $ent;
73  }
74 
75  // SET/GET
76  function setRole($a_role)
77  {
78  switch($a_role)
79  {
80  case 'Author':
81  case 'Publisher':
82  case 'Unknown':
83  case 'Initiator':
84  case 'Terminator':
85  case 'Editor':
86  case 'GraphicalDesigner':
87  case 'TechnicalImplementer':
88  case 'ContentProvider':
89  case 'TechnicalValidator':
90  case 'EducationalValidator':
91  case 'ScriptWriter':
92  case 'InstructionalDesigner':
93  case 'SubjectMatterExpert':
94  case 'Creator':
95  case 'Validator':
96  case 'PointOfContact':
97  $this->role = $a_role;
98  return true;
99 
100  default:
101  return false;
102  }
103  }
104  function getRole()
105  {
106  return $this->role;
107  }
108  function setDate($a_date)
109  {
110  $this->date = $a_date;
111  }
112  function getDate()
113  {
114  return $this->date;
115  }
116 
117 
118  function save()
119  {
120  global $ilDB;
121 
122  $fields = $this->__getFields();
123  $fields['meta_contribute_id'] = array('integer',$next_id = $ilDB->nextId('il_meta_contribute'));
124 
125  if($this->db->insert('il_meta_contribute',$fields))
126  {
127  $this->setMetaId($next_id);
128  return $this->getMetaId();
129  }
130  return false;
131  }
132 
133  function update()
134  {
135  global $ilDB;
136 
137  if($this->getMetaId())
138  {
139  if($this->db->update('il_meta_contribute',
140  $this->__getFields(),
141  array("meta_contribute_id" => array('integer',$this->getMetaId()))))
142  {
143  return true;
144  }
145  }
146  return false;
147  }
148 
149  function delete()
150  {
151  global $ilDB;
152 
153  if($this->getMetaId())
154  {
155  $query = "DELETE FROM il_meta_contribute ".
156  "WHERE meta_contribute_id = ".$ilDB->quote($this->getMetaId() ,'integer');
157  $res = $ilDB->manipulate($query);
158 
159  foreach($this->getEntityIds() as $id)
160  {
161  $ent = $this->getEntity($id);
162  $ent->delete();
163  }
164  return true;
165  }
166  return false;
167  }
168 
169 
170  function __getFields()
171  {
172  return array('rbac_id' => array('integer',$this->getRBACId()),
173  'obj_id' => array('integer',$this->getObjId()),
174  'obj_type' => array('text',$this->getObjType()),
175  'parent_type' => array('text',$this->getParentType()),
176  'parent_id' => array('integer',$this->getParentId()),
177  'role' => array('text',$this->getRole()),
178  'c_date' => array('text',$this->getDate()));
179  }
180 
181  function read()
182  {
183  global $ilDB;
184 
185  include_once 'Services/MetaData/classes/class.ilMDLanguageItem.php';
186 
187  if($this->getMetaId())
188  {
189  $query = "SELECT * FROM il_meta_contribute ".
190  "WHERE meta_contribute_id = ".$ilDB->quote($this->getMetaId() ,'integer');
191 
192  $res = $this->db->query($query);
193  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
194  {
195  $this->setRBACId($row->rbac_id);
196  $this->setObjId($row->obj_id);
197  $this->setObjType($row->obj_type);
198  $this->setParentId($row->parent_id);
199  $this->setParentType($row->parent_type);
200  $this->setRole($row->role);
201  $this->setDate($row->c_date);
202  }
203  }
204  return true;
205  }
206 
207  /*
208  * XML Export of all meta data
209  * @param object (xml writer) see class.ilMD2XML.php
210  *
211  */
212  function toXML(&$writer)
213  {
214  $writer->xmlStartTag('Contribute',array('Role' => $this->getRole()
215  ? $this->getRole()
216  : 'Author'));
217 
218  // Entities
219  $entities = $this->getEntityIds();
220  foreach($entities as $id)
221  {
222  $ent =& $this->getEntity($id);
223  $ent->toXML($writer);
224  }
225  if(!count($entities))
226  {
227  include_once 'Services/MetaData/classes/class.ilMDEntity.php';
228  $ent = new ilMDEntity($this->getRBACId(),$this->getObjId());
229  $ent->toXML($writer);
230  }
231 
232  $writer->xmlElement('Date',null,$this->getDate());
233  $writer->xmlEndTag('Contribute');
234  }
235 
236 
237  // STATIC
238  function _getIds($a_rbac_id,$a_obj_id,$a_parent_id,$a_parent_type)
239  {
240  global $ilDB;
241 
242  $query = "SELECT meta_contribute_id FROM il_meta_contribute ".
243  "WHERE rbac_id = ".$ilDB->quote($a_rbac_id ,'integer')." ".
244  "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer')." ".
245  "AND parent_id = ".$ilDB->quote($a_parent_id ,'integer')." ".
246  "AND parent_type = ".$ilDB->quote($a_parent_type ,'text');
247 
248  $res = $ilDB->query($query);
249  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
250  {
251  $ids[] = $row->meta_contribute_id;
252  }
253  return $ids ? $ids : array();
254  }
255 
267  public static function _lookupAuthors($a_rbac_id,$a_obj_id,$a_obj_type)
268  {
269  global $ilDB;
270 
271  // Ask for 'author' later to use indexes
272  $query = "SELECT entity,ent.parent_type,role FROM il_meta_entity ent ".
273  "JOIN il_meta_contribute con ON ent.parent_id = con.meta_contribute_id ".
274  "WHERE ent.rbac_id = ".$ilDB->quote($a_rbac_id ,'integer')." ".
275  "AND ent.obj_id = ".$ilDB->quote($a_obj_id ,'integer')." ";
276  $res = $ilDB->query($query);
277  while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
278  {
279  if($row->role == 'Author' and $row->parent_type == 'meta_contribute')
280  {
281  $authors[] = trim($row->entity);
282  }
283  }
284  return $authors ? $authors : array();
285  }
286 }
287 ?>