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<?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"
;
?>
|
