aboutsummaryrefslogtreecommitdiffstats
path: root/install/db/19-database.php
blob: 4dfdf38d0b25639fd955f395634d20f31c6bdc88 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based picture gallery                                  |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2009 Piwigo Team                  http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program is distributed in the hope that it will be useful, but   |
// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

if (!defined('PHPWG_ROOT_PATH'))
{
  die('Hacking attempt!');
}

$upgrade_description = '#images.keywords moved to new table #tags';

// +-----------------------------------------------------------------------+
// |                              New tables                               |
// +-----------------------------------------------------------------------+

$query = '
CREATE TABLE '.PREFIX_TABLE.'tags (
  id smallint(5) UNSIGNED NOT NULL auto_increment,
  name varchar(255) BINARY NOT NULL,
  url_name varchar(255) BINARY NOT NULL,
  PRIMARY KEY (id)
) TYPE=MyISAM
;';
pwg_query($query);

$query = '
CREATE TABLE '.PREFIX_TABLE.'image_tag (
  image_id mediumint(8) UNSIGNED NOT NULL,
  tag_id smallint(5) UNSIGNED NOT NULL,
  PRIMARY KEY (image_id,tag_id)
) TYPE=MyISAM
;';
pwg_query($query);

// +-----------------------------------------------------------------------+
// |                        Move keywords to tags                          |
// +-----------------------------------------------------------------------+

// each tag label is associated to a numeric identifier
$tag_id = array();
// to each tag id (key) a list of image ids (value) is associated
$tag_images = array();

$current_id = 1;

$query = '
SELECT id, keywords
  FROM '.PREFIX_TABLE.'images
  WHERE keywords IS NOT NULL
;';
$result = pwg_query($query);
while ($row = mysql_fetch_array($result))
{
  foreach(preg_split('/[,]+/', $row['keywords']) as $keyword)
  {
    if (!isset($tag_id[$keyword]))
    {
      $tag_id[$keyword] = $current_id++;
    }

    if (!isset($tag_images[ $tag_id[$keyword] ]))
    {
      $tag_images[ $tag_id[$keyword] ] = array();
    }

    array_push($tag_images[ $tag_id[$keyword] ], $row['id']);
  }
}

$datas = array();
foreach ($tag_id as $tag_name => $tag_id)
{
  array_push(
    $datas,
    array(
      'id'       => $tag_id,
      'name'     => $tag_name,
      'url_name' => str2url($tag_name),
      )
    );
}
if (!empty($datas))
mass_inserts(
  PREFIX_TABLE.'tags',
  array_keys($datas[0]),
  $datas
  );

$datas = array();
foreach ($tag_images as $tag_id => $images)
{
  foreach (array_unique($images) as $image_id)
  {
    array_push(
      $datas,
      array(
        'tag_id'   => $tag_id,
        'image_id' => $image_id,
        )
      );
  }
}

if (!empty($datas))
mass_inserts(
  PREFIX_TABLE.'image_tag',
  array_keys($datas[0]),
  $datas
  );

// +-----------------------------------------------------------------------+
// |                         Delete images.keywords                        |
// +-----------------------------------------------------------------------+

$query = '
ALTER TABLE '.PREFIX_TABLE.'images DROP COLUMN keywords
;';
pwg_query($query);

// +-----------------------------------------------------------------------+
// |                           End notification                            |
// +-----------------------------------------------------------------------+

echo
"\n"
.'Table '.PREFIX_TABLE.'tags created and filled'."\n"
.'Table '.PREFIX_TABLE.'image_tag created and filled'."\n"
.'Column '.PREFIX_TABLE.'images.keywords dropped'."\n"
;
?>