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<?php
/**
copyright 2012,2013 Arun Persaud <arun@nubati.net>
This file is part of photo-tags.
Photo-tags 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, either version 3 of the License, or
(at your option) any later version.
Photo-tags 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 Photo-tags. If not, see <http://www.gnu.org/licenses/>.
**/
$N=30;
/* parse ini -file */
$iniarray=parse_ini_file("config.ini");
$DBFILE=$iniarray["fspotdb"];
$usePDO=$iniarray["usePDO"];
$N=$iniarray["pics_per_page"];
/* end parse ini-file */
if($usePDO)
$DB = new PDO("sqlite:$DBFILE");
else
$DB = new SQlite3($DBFILE);
/* do database query */
if (isset($_REQUEST["S"]))
{
/* single tag or part of tag */
$tag = sqlite_escape_string($_REQUEST["S"]);
$result = $DB->query("SELECT name FROM tags");
}
else if (isset($_REQUEST["NP"]))
{
/* get +- 3 pics from ordered list to show next to a large image */
/* first create a temp table with all images and then use rowid to get +-5 images */
if (isset($_REQUEST["T"]))
{
/* single tag or part of tag */
$tags = $_REQUEST["T"];
$tags = explode(",",$tags);
$nrtags = count($tags);
foreach ($tags as $key => $value)
$tags[$key]=sqlite_escape_string(trim($value));
$tags = "'".implode("','",$tags)."'";
$DB->query("CREATE TEMP TABLE NEXTPREV AS SELECT base_uri, filename, p.id as id FROM photo_tags pt, photos p, tags t".
" WHERE pt.tag_id = t.id".
" AND (t.name COLLATE NOCASE IN ($tags))".
" AND p.id = pt.photo_id ".
" GROUP BY p.id HAVING COUNT( p.id )=$nrtags");
}
else
{
$DB->query("CREATE TEMP TABLE NEXTPREV AS SELECT base_uri, filename, p.id as id FROM photos p");
};
if (isset($_REQUEST["ID"]))
{
$ID=intval($_REQUEST["ID"]);
$result = $DB->query("SELECT * FROM NEXTPREV".
" WHERE rowid > (select rowid from NEXTPREV where id=$ID) -3".
" AND rowid < (select rowid from NEXTPREV where id=$ID) +3");
}
else
{
$result = $DB->query("SELECT 1 where 1=2");
}
}
else if (isset($_REQUEST["ID"]) && !isset($_REQUEST["C"]))
{
$id = intval($_REQUEST["ID"]);
$result = $DB->query("SELECT base_uri, filename, id, description, time FROM photos".
" WHERE id=$id");
}
else if (isset($_REQUEST["IDT"]))
{ /* tags of a single image */
$id = intval($_REQUEST["IDT"]);
$result = $DB->query("SELECT t.name as name FROM photo_tags pt ".
" LEFT JOIN tags t on t.id=pt.tag_id".
" WHERE pt.photo_id=$id");
}
else if (isset($_REQUEST["CLOUD"]))
{
$result = $DB->query("SELECT t.name as name, count(*) as count FROM photo_tags pt ".
" LEFT JOIN tags t on t.id=pt.tag_id".
" GROUP BY t.id");
}
else
{
if (isset($_REQUEST["P"]))
$OFFSET = "".(intval($_REQUEST["P"])*$N-$N);
else
$OFFSET = "0";
if (isset($_REQUEST["T"]))
{
/* single tag or part of tag */
$tags = $_REQUEST["T"];
$tags = explode(",",$tags);
$nrtags = count($tags);
foreach ($tags as $key => $value)
$tags[$key]=sqlite_escape_string(trim($value));
$tags = "'".implode("','",$tags)."'";
/* individual tags are seperated by ',' */
/* use and AND query between tags as a default
a good explanation on different ways of doing this can be found at:
http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html
*/
if (isset($_REQUEST["C"]))
{
$DB->query("CREATE TEMP TABLE TEMPPICS AS SELECT p.id as id FROM photo_tags pt, photos p, tags t".
" WHERE pt.tag_id = t.id".
" AND (t.name COLLATE NOCASE IN ($tags))".
" AND p.id = pt.photo_id ".
" GROUP BY p.id HAVING COUNT( p.id )=$nrtags");
if (isset($_REQUEST["ID"]))
{
$ID = $_REQUEST["ID"];
$result = $DB->query("SELECT count(*) as total, (SELECT rowid from TEMPPICS WHERE id = $ID) as row from TEMPPICS");
}
else
$result = $DB->query("SELECT count(*) as total, -1 as row from TEMPPICS");
}
else
{
$result = $DB->query("SELECT base_uri, filename, p.id as id FROM photo_tags pt, photos p, tags t".
" WHERE pt.tag_id = t.id".
" AND (t.name COLLATE NOCASE IN ($tags))".
" AND p.id = pt.photo_id ".
" GROUP BY p.id HAVING COUNT( p.id )=$nrtags".
" LIMIT $OFFSET, $N");
}
}
else
{
if (isset($_REQUEST["C"]))
{
$DB->query("CREATE TEMP TABLE TEMPPICS AS SELECT id from photos");
if (isset($_REQUEST["ID"]))
{
$ID = $_REQUEST["ID"];
$result = $DB->query("SELECT count(*) as total, (SELECT rowid FROM TEMPPICS WHERE id=$ID) as row FROM TEMPPICS");
}
else
$result = $DB->query("SELECT count(*) as total, -1 as row FROM TEMPPICS");
}
else
$result = $DB->query("SELECT * FROM photos LIMIT $OFFSET, $N");
}
}
/* encode result as an array */
$tmp=array();
if(!$usePDO)
{
/* convert results into array */
while($res = $result->fetchArray(SQLITE3_ASSOC))
$tmp[]=$res;
}
else
{
foreach($result as $res)
$tmp[]=$res;
}
$result=$tmp;
echo json_encode($result);
/* close the database */
if($usePDO)
$DB=null;
else
$DB->close();
?>
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