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Multi categories for the same picture

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git-svn-id: http://piwigo.org/svn/trunk@61 68402e56-0260-453c-a942-63ccdbb3a9ee
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z0rglub
2003-08-30 15:54:37 +00:00
parent b5bc939149
commit 044fba0256
17 changed files with 860 additions and 325 deletions
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admin/include/functions.php
+142 -6
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@@ -94,6 +94,7 @@ function delete_site( $id )
// The function delete_category deletes the category identified by the $id
// It also deletes (in the database) :
// - all the images of the images (thanks to delete_image, see further)
// - all the links between images and this category
// - all the restrictions linked to the category
// The function works recursively.
function delete_category( $id )
@@ -101,7 +102,7 @@ function delete_category( $id )
// destruction of all the related images
$query = 'SELECT id';
$query.= ' FROM '.PREFIX_TABLE.'images';
$query.= ' WHERE cat_id = '.$id;
$query.= ' WHERE storage_category_id = '.$id;
$query.= ';';
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
@@ -109,6 +110,12 @@ function delete_category( $id )
delete_image( $row['id'] );
}
// destruction of the links between images and this category
$query = 'DELETE FROM '.PREFIX_TABLE.'image_category';
$query.= ' WHERE category_id = '.$id;
$query.= ';';
mysql_query( $query );
// destruction of the access linked to the category
$query = 'DELETE FROM '.PREFIX_TABLE.'user_access';
$query.= ' WHERE cat_id = '.$id;
@@ -140,6 +147,7 @@ function delete_category( $id )
// The function delete_image deletes the image identified by the $id
// It also deletes (in the database) :
// - all the comments related to the image
// - all the links between categories and this image
// - all the favorites associated to the image
function delete_image( $id )
{
@@ -150,7 +158,13 @@ function delete_image( $id )
$query.= ' WHERE image_id = '.$id;
$query.= ';';
mysql_query( $query );
// destruction of the links between images and this category
$query = 'DELETE FROM '.PREFIX_TABLE.'image_category';
$query.= ' WHERE image_id = '.$id;
$query.= ';';
mysql_query( $query );
// destruction of the favorites associated with the picture
$query = 'DELETE FROM '.PREFIX_TABLE.'favorites';
$query.= ' WHERE image_id = '.$id;
@@ -244,15 +258,28 @@ function check_favorites( $user_id )
$restricted_cat = get_all_restrictions( $user_id, $status );
// retrieving all the favorites for this user and comparing their
// categories to the restricted categories
$query = 'SELECT image_id, cat_id';
$query.= ' FROM '.PREFIX_TABLE.'favorites, '.PREFIX_TABLE.'images';
$query = 'SELECT image_id';
$query.= ' FROM '.PREFIX_TABLE.'favorites';
$query.= ' WHERE user_id = '.$user_id;
$query.= ' AND id = image_id';
$query.= ';';
$result = mysql_query ( $query );
while ( $row = mysql_fetch_array( $result ) )
{
if ( in_array( $row['cat_id'], $restricted_cat ) )
// for each picture, we have to check all the categories it belongs
// to. Indeed if a picture belongs to category_1 and category_2 and that
// category_2 is not restricted to the user, he can have the picture as
// favorite.
$query = 'SELECT DISTINCT(category_id) as category_id';
$query.= ' FROM '.PREFIX_TABLE.'image_category';
$query.= ' WHERE image_id = '.$row['image_id'];
$query.= ';';
$picture_result = mysql_query( $query );
$picture_cat = array();
while ( $picture_row = mysql_fetch_array( $picture_result ) )
{
array_push( $picture_cat, $picture_row['category_id'] );
}
if ( count( array_diff( $picture_cat, $restricted_cat ) ) > 0 )
{
$query = 'DELETE FROM '.PREFIX_TABLE.'favorites';
$query.= ' WHERE image_id = '.$row['image_id'];
@@ -262,4 +289,113 @@ function check_favorites( $user_id )
}
}
}
// update_category updates calculated informations about a category :
// date_last and nb_images
function update_category( $id = 'all' )
{
if ( $id == 'all' )
{
$query = 'SELECT id';
$query.= ' FROM '.PREFIX_TABLE.'categories';
$query.= ';';
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
{
// recursive call
update_category( $row['id'] );
}
}
else if ( is_numeric( $id ) )
{
// updating the number of pictures
$query = 'SELECT COUNT(*) as nb_images';
$query.= ' FROM '.PREFIX_TABLE.'image_category';
$query.= ' WHERE category_id = '.$id;
$query.= ';';
$row = mysql_fetch_array( mysql_query( $query ) );
$query = 'UPDATE '.PREFIX_TABLE.'categories';
$query.= ' SET nb_images = '.$row['nb_images'];
$query.= ' WHERE id = '.$id;
$query.= ';';
mysql_query( $query );
// updating the date_last
$query = 'SELECT date_available';
$query.= ' FROM '.PREFIX_TABLE.'images';
$query.= ' LEFT JOIN '.PREFIX_TABLE.'image_category ON id = image_id';
$query.= ' WHERE category_id = '.$id;
$query.= ' ORDER BY date_available DESC';
$query.= ' LIMIT 0,1';
$query.= ';';
$row = mysql_fetch_array( mysql_query( $query ) );
$query = 'UPDATE '.PREFIX_TABLE.'categories';
$query.= " SET date_last = '".$row['date_available']."'";
$query.= ' WHERE id = '.$id;
$query.= ';';
mysql_query( $query );
}
}
function check_date_format( $date )
{
// date arrives at this format : DD/MM/YYYY
list($day,$month,$year) = explode( '/', $date );
return checkdate ( $month, $day, $year );
}
function date_convert( $date )
{
// date arrives at this format : DD/MM/YYYY
// It must be transformed in YYYY-MM-DD
list($day,$month,$year) = explode( '/', $date );
return $year.'-'.$month.'-'.$day;
}
function date_convert_back( $date )
{
// date arrives at this format : YYYY-MM-DD
// It must be transformed in DD/MM/YYYY
if ( $date != '' )
{
list($year,$month,$day) = explode( '-', $date );
return $day.'/'.$month.'/'.$year;
}
else
{
return '';
}
}
// get_keywords returns an array with relevant keywords found in the string
// given in argument. Keywords must be separated by comma in this string.
// keywords must :
// - be longer or equal to 3 characters
// - not contain ', " or blank characters
// - unique in the string ("test,test" -> "test")
function get_keywords( $keywords_string )
{
$keywords = array();
$candidates = explode( ',', $keywords_string );
foreach ( $candidates as $candidate ) {
if ( strlen($candidate) >= 3 and !preg_match( '/(\'|"|\s)/', $candidate ) )
array_push( $keywords, $candidate );
}
return array_unique( $keywords );
}
function display_categories( $categories, $indent )
{
global $vtp,$sub;
foreach ( $categories as $category ) {
$vtp->addSession( $sub, 'associate_cat' );
$vtp->setVar( $sub, 'associate_cat.value', $category['id'] );
$content = $indent.'- '.$category['name'];
$vtp->setVar( $sub, 'associate_cat.content', $content );
$vtp->closeSession( $sub, 'associate_cat' );
display_categories( $category['subcats'], $indent.str_repeat(' ',3) );
}
}
?>