diff options
Diffstat (limited to 'admin/include/functions.php')
| -rw-r--r-- | admin/include/functions.php | 545 |
1 files changed, 91 insertions, 454 deletions
diff --git a/admin/include/functions.php b/admin/include/functions.php index 3a8c6b506..f9435b1f1 100644 --- a/admin/include/functions.php +++ b/admin/include/functions.php @@ -152,22 +152,16 @@ function delete_categories($ids) // destruction of all the related elements $query = ' -SELECT image_id - FROM '.IMAGE_CATEGORY_TABLE.' - WHERE is_storage = \'true\' - AND category_id IN ('. - wordwrap( - implode(', ', $ids), - 80, - "\n" - ). - ') +SELECT id + FROM '.IMAGES_TABLE.' + WHERE storage_category_id IN ( +'.wordwrap(implode(', ', $ids), 80, "\n").') ;'; $result = pwg_query($query); $element_ids = array(); while ($row = mysql_fetch_array($result)) { - array_push($element_ids, $row['image_id']); + array_push($element_ids, $row['id']); } delete_elements($element_ids); @@ -194,37 +188,6 @@ DELETE FROM '.GROUP_ACCESS_TABLE.' ;'; pwg_query($query); - // source/destination links deletion - $query = ' -SELECT destination, source - FROM '.CATEGORIES_LINK_TABLE.' - WHERE source IN ('.implode(',', $ids).') - OR destination IN ('.implode(',', $ids).') -;'; - $result = pwg_query($query); - - $sources_of = array(); - - while ($row = mysql_fetch_array($result)) - { - if (!isset($sources_of[ $row['destination'] ])) - { - $sources_of[ $row['destination'] ] = array(); - } - - array_push( - $sources_of[ $row['destination'] ], - $row['source'] - ); - } - - foreach ($sources_of as $destination => $sources) - { - delete_sources($destination, $sources); - } - - update_category(); - // destruction of the category $query = ' DELETE FROM '.CATEGORIES_TABLE.' @@ -441,15 +404,14 @@ SELECT id SELECT category_id, COUNT(image_id) AS nb_images, MAX(date_available) AS date_last - FROM '.IMAGES_TABLE.' - INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON id = image_id + FROM '.IMAGES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON id = image_id WHERE category_id IN ('.wordwrap(implode(', ', $cat_ids), 80, "\n").') GROUP BY category_id ;'; $result = pwg_query($query); $datas = array(); $query_ids = array(); - while ($row = mysql_fetch_array($result)) + while ( $row = mysql_fetch_array( $result ) ) { array_push($query_ids, $row['category_id']); @@ -466,23 +428,12 @@ SELECT category_id, // is returned but the update must be done ! foreach (array_diff($cat_ids, $query_ids) as $id) { - array_push( - $datas, - array( - 'id' => $id, - 'nb_images' => 0, - ) - ); + array_push($datas, array('id' => $id, 'nb_images' => 0)); } - mass_updates( - CATEGORIES_TABLE, - array( - 'primary' => array('id'), - 'update' => array('date_last', 'nb_images') - ), - $datas - ); + $fields = array('primary' => array('id'), + 'update' => array('date_last', 'nb_images')); + mass_updates(CATEGORIES_TABLE, $fields, $datas); // representative pictures if (count($cat_ids) > 0) @@ -1357,42 +1308,19 @@ SELECT id, id_uppercat */ function update_path() { - $images_of = array(); - $query = ' -SELECT category_id, image_id - FROM '.IMAGE_CATEGORY_TABLE.' - WHERE is_storage = \'true\' +SELECT DISTINCT(storage_category_id) + FROM '.IMAGES_TABLE.' ;'; - $result = pwg_query($query); - while ($row = mysql_fetch_array($result)) - { - if (!isset($images_of[ $row['category_id'] ])) - { - $images_of[ $row['category_id'] ] = array(); - } + $cat_ids = array_from_query($query, 'storage_category_id'); + $fulldirs = get_fulldirs($cat_ids); - array_push( - $images_of[ $row['category_id'] ], - $row['image_id'] - ); - } - - $fulldirs = get_fulldirs( - array_keys($images_of) - ); - - foreach ($images_of as $cat_id => $image_ids) + foreach ($cat_ids as $cat_id) { $query = ' UPDATE '.IMAGES_TABLE.' SET path = CONCAT(\''.$fulldirs[$cat_id].'\',\'/\',file) - WHERE id IN ('. - wordwrap( - implode(', ', $image_ids), - 80, - "\n"). - ') + WHERE storage_category_id = '.$cat_id.' ;'; pwg_query($query); } @@ -1613,371 +1541,6 @@ DELETE FROM '.$table.' } /** - * Returns all destinations of a list of source categories. This function - * solves transitivity. - * - * @param mixed array of category ids, empty for all categories - */ -function get_destinations($categories = 'all') -{ - $query = ' -SELECT source, destination - FROM '.CATEGORIES_LINK_TABLE.' -'; - $result = pwg_query($query); - - $destinations_of = array(); - - while ($row = mysql_fetch_array($result)) - { - if (!isset($destinations_of[ $row['source'] ])) - { - $destinations_of[ $row['source'] ] = array(); - } - - array_push( - $destinations_of[ $row['source'] ], - $row['destination'] - ); - } - - // transitivity resolution: if " => " means "source of", if A=>B=>C - // implies A=>B and A=>C. So A has 2 destinations: B and C. - do - { - // let's suppose we only need a single turn - $need_new_turn = false; - - foreach ($destinations_of as $source => $destinations) - { - foreach ($destinations as $destination) - { - // does the current destination has destinations itself? - if (isset($destinations_of[$destination])) - { - // are there destinations of current destination not already among - // destinations of the current source? (advise: take a piece of - // paper and draw a schema). The source itself must not be counted - // as a destination, thus avoiding cyclic links. - $missing_destinations = array_diff( - $destinations_of[$destination], - $destinations, - array($source) // no cyclic link - ); - - if (count($missing_destinations) > 0) - { - $destinations_of[$source] = array_unique( - array_merge( - $destinations, - $missing_destinations - ) - ); - - // a category has a least one new destination, we have to check - // one more time that it doesn't generate more destinations - $need_new_turn = true; - } - } - } - } - } while ($need_new_turn); - - if (is_array($categories)) - { - $filtered_destinations_of = array(); - - // Even if there is no destinations for the requested categories, we - // return empty arrays - foreach ($categories as $category) - { - $filtered_destinations_of[$category] = array(); - } - - foreach ($destinations_of as $source => $destinations) - { - if (in_array($source, $categories)) - { - $filtered_destinations_of[$source] = $destinations; - } - } - - return $filtered_destinations_of; - } - else - { - return $destinations_of; - } -} - -/** - * Returns all sources of a list of destination categories. This function - * solves transitivity. - * - * @param mixed array of category ids, empty for all categories - */ -function get_sources($categories = 'all') -{ - $destinations_of = get_destinations(); - - $sources_of = array(); - - foreach ($destinations_of as $source => $destinations) - { - foreach ($destinations as $destination) - { - if (!isset($sources_of[$destination])) - { - $sources_of[$destination] = array(); - } - - array_push($sources_of[$destination], $source); - } - } - - // eventually, filter - if (is_array($categories)) - { - $filtered_sources_of = array(); - - // Even if there is no sources for the requested categories, we return - // empty arrays - foreach ($categories as $category) - { - $filtered_sources_of[$category] = array(); - } - - foreach ($sources_of as $destination => $sources) - { - if (in_array($destination, $categories)) - { - $filtered_sources_of[$destination] = $sources; - } - } - - return $filtered_sources_of; - } - else - { - return $sources_of; - } -} - -/** - * Checks categories links are respected for a given list of destinations. - * - * Checking categories links means that each destination must be associated - * to the images of its sources. - * - * @param mixed source category ids - */ -function check_links($destinations = 'all') -{ - $sources_of = get_sources($destinations); - - if (empty($sources_of)) - { - return true; - } - - // we need to search images of all sources and destinations - $images_of = array(); - - foreach ($sources_of as $destination => $sources) - { - $images_of[$destination] = array(); - - foreach ($sources as $source) - { - $images_of[$source] = array(); - } - } - - $query = ' -SELECT image_id, category_id - FROM '.IMAGE_CATEGORY_TABLE.' - WHERE category_id IN ('. - implode(',', array_keys($images_of)). - ') -;'; - $result = pwg_query($query); - - while ($row = mysql_fetch_array($result)) - { - array_push( - $images_of[ $row['category_id'] ], - $row['image_id'] - ); - } - - $inserts = array(); - - foreach ($sources_of as $destination => $sources) - { - // merge all images from the sources of this destination - $sources_images = array(); - - foreach ($sources as $source) - { - $sources_images = array_merge( - $sources_images, - $images_of[$source] - ); - } - - $sources_images = array_unique($sources_images); - - // are there images among the sources that are not linked to the - // destination? - $missing_images = array_diff( - $sources_images, - $images_of[$destination] - ); - - // if we find missing images (missing links in reality), we prepare the - // final mass_inserts - if (count($missing_images) > 0) - { - foreach ($missing_images as $missing_image) - { - array_push( - $inserts, - array( - 'category_id' => $destination, - 'image_id' => $missing_image, - ) - ); - } - } - } - - if (count($inserts) > 0) - { - mass_inserts( - IMAGE_CATEGORY_TABLE, - array_keys($inserts[0]), - $inserts - ); - } -} - -/** - * Based on categories links, delete image_category links on destinations. - * - * The rule is the following: if an image belong to the category and to the - * source, we suppose it comes from the source. If the source/destination - * link is broken, we delete the image/category link if the only origin of - * the link was the broken categories link. - * - * Example: "=>" means "source of". Between brackets the associated images. - * - * A (1,2,9) => \ - * |=> C (1,2,3,4,5,9) => D (1,2,3,4,5,6,9) - * B (3,4,9) => / - * - * In category C, we suppose (1,2) come from A, (3,4) from B, 9 from A or B - * and 5 was manually added. In category D, 6 was added manually. - * - * If we break A=>C, C and D loose (1,2) but not 9 because it can come from - * B. If we break C=>D, D loose (3,4,5,9) but not 6 because it was - * associated manually to 9. - * - * Warning: only virtual links can be removed, physical links are protected. - * - * @param int destination - * @param array sources - */ -function delete_sources($destination, $sources) -{ - // if no sources to unlink, we stop with OK status - if (count($sources) == 0) - { - return true; - } - - $query = ' -DELETE - FROM '.CATEGORIES_LINK_TABLE.' - WHERE destination = '.$destination.' - AND source IN ('.implode(',', $sources).') -;'; - pwg_query($query); - - // The strategy is the following: - // - // * first we brutally delete the image/category associations on - // destinations categories for all images belonging to sources. - // - // * then we check_links on destinations to rebuild missing image/category - // associations. - - // what are the images associated to the sources to unlink - $query = ' -SELECT image_id - FROM '.IMAGE_CATEGORY_TABLE.' - WHERE category_id IN ('. - implode(',', $sources). - ') -;'; - $sources_images = array_unique( - array_from_query($query, 'image_id') - ); - - if (count($sources_images) == 0) - { - return true; - } - - // retrieve all direct and indirect destinations of the current - // destination - $destinations_of = get_destinations(array($destination)); - - $destinations = array_merge( - array($destination), - $destinations_of[$destination] - ); - - // unlink sources images from destinations - $query = ' -DELETE - FROM '.IMAGE_CATEGORY_TABLE.' - WHERE category_id IN ('.implode(',', $destinations).') - AND image_id IN ('.implode(',', $sources_images).') - AND is_storage = \'false\' -;'; - pwg_query($query); - - // if the representative thumbnail of destinations was a picture from - // $sources_images, we request a new random representant - $query = ' -SELECT id, representative_picture_id - FROM '.CATEGORIES_TABLE.' - WHERE id IN ('.implode(',', $destinations).') -;'; - $result = pwg_query($query); - - $request_random = array(); - - while ($row = mysql_fetch_array($result)) - { - if (isset($row['representative_picture_id'])) - { - if (in_array($row['representative_picture_id'], $sources_images)) - { - array_push($request_random, $row['id']); - } - } - } - - set_random_representant($request_random); - - // eventually, we check_links to rebuild missing associations - check_links($destinations); - - return true; -} - -/** * create a virtual category * * @param string category name @@ -2299,4 +1862,78 @@ function do_maintenance_all_tables() pwg_query($query); } + +/** + * Associate a list of images to a list of categories. + * + * The function will not duplicate links + * + * @param array images + * @param array categories + * @return void + */ +function associate_images_to_categories($images, $categories) +{ + if (count($images) == 0 + or count($categories) == 0) + { + return false; + } + + $query = ' +DELETE + FROM '.IMAGE_CATEGORY_TABLE.' + WHERE image_id IN ('.implode(',', $images).') + AND category_id IN ('.implode(',', $categories).') +;'; + pwg_query($query); + + $inserts = array(); + foreach ($categories as $category_id) + { + foreach ($images as $image_id) + { + array_push( + $inserts, + array( + 'image_id' => $image_id, + 'category_id' => $category_id, + ) + ); + } + } + + mass_inserts( + IMAGE_CATEGORY_TABLE, + array_keys($inserts[0]), + $inserts + ); + + update_category($categories); +} + +/** + * Associate images associated to a list of source categories to a list of + * destination categories. + * + * @param array sources + * @param array destinations + * @return void + */ +function associate_categories_to_categories($sources, $destinations) +{ + if (count($sources) == 0) + { + return false; + } + + $query = ' +SELECT image_id + FROM '.IMAGE_CATEGORY_TABLE.' + WHERE category_id IN ('.implode(',', $sources).') +;'; + $images = array_from_query($query, 'image_id'); + + associate_images_to_categories($images, $destinations); +} ?> |