[11741] | 1 | <?php |
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| 2 | // +-----------------------------------------------------------------------+ |
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| 3 | // | User Tags - a plugin for Piwigo | |
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| 4 | // +-----------------------------------------------------------------------+ |
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| 5 | // | Copyright(C) 2010-2011 Nicolas Roudaire http://www.nikrou.net | |
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| 6 | // +-----------------------------------------------------------------------+ |
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| 7 | // | This program is free software; you can redistribute it and/or modify | |
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| 8 | // | it under the terms of the GNU General Public License as published by | |
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| 9 | // | the Free Software Foundation | |
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| 10 | // | | |
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| 11 | // | This program is distributed in the hope that it will be useful, but | |
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| 12 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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| 13 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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| 14 | // | General Public License for more details. | |
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| 15 | // | | |
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| 16 | // | You should have received a copy of the GNU General Public License | |
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| 17 | // | along with this program; if not, write to the Free Software | |
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| 18 | // | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
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| 19 | // | MA 02110-1301 USA. | |
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| 20 | // +-----------------------------------------------------------------------+ |
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| 21 | |
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| 22 | include_once(PHPWG_ROOT_PATH.'admin/include/functions.php'); |
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| 23 | |
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| 24 | class t4u_Ws |
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| 25 | { |
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| 26 | public function addMethods($arr) { |
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| 27 | $service = &$arr[0]; |
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| 28 | |
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| 29 | $service->addMethod(T4U_WS.'list', array($this, 'tagsList'), |
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| 30 | array(), |
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| 31 | 'retrieves a list of tags than can be filtered' |
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| 32 | ); |
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| 33 | |
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| 34 | $service->addMethod(T4U_WS.'update', array($this, 'updateTags'), |
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| 35 | array('image_id' => array(), |
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| 36 | 'tags' => array('default' => array()) |
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| 37 | ), |
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| 38 | 'Updates (add or remove) tags associated to an image (POST method only)' |
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| 39 | ); |
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| 40 | } |
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| 41 | |
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| 42 | public function tagsList($params, &$service) { |
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| 43 | $query = ' |
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| 44 | SELECT |
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| 45 | id AS tag_id, |
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| 46 | name AS tag_name |
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| 47 | FROM '.TAGS_TABLE.' |
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| 48 | ;'; |
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| 49 | |
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| 50 | $tagslist = $this->__makeTagsList($query); |
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| 51 | unset($tagslist['__associative_tags']); |
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| 52 | $cmp = create_function('$a,$b', 'return strcasecmp($a[\'name\'], $b[\'name\']);'); |
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| 53 | usort($tagslist, $cmp); |
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| 54 | |
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| 55 | return $tagslist; |
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| 56 | } |
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| 57 | |
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| 58 | public function updateTags($params, &$service) { |
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| 59 | if (!$service->isPost()) { |
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| 60 | return new PwgError(405, "This method requires HTTP POST"); |
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| 61 | } |
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| 62 | |
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| 63 | if (!t4u_Config::getInstance()->hasPermission('add') && !t4u_Config::getInstance()->hasPermission('delete')) { |
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| 64 | return array('error' => l10n('You are not allowed to add nor delete tags')); |
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| 65 | } |
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| 66 | |
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| 67 | if (empty($params['tags'])) { |
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| 68 | $params['tags'] = array(); |
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| 69 | } |
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| 70 | $message = ''; |
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| 71 | |
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| 72 | $query = ' |
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| 73 | SELECT |
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| 74 | tag_id, |
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| 75 | name AS tag_name |
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| 76 | FROM '.IMAGE_TAG_TABLE.' AS it |
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| 77 | JOIN '.TAGS_TABLE.' AS t ON t.id = it.tag_id |
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| 78 | WHERE image_id = '.(int) $params['image_id'].' |
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| 79 | ;'; |
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| 80 | |
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| 81 | $current_tags = $this->__makeTagsList($query); |
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| 82 | $current_tags_ids = array_keys($current_tags['__associative_tags']); |
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| 83 | if (empty($params['tags'])) { |
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| 84 | $tags_to_associate = array(); |
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| 85 | } else { |
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| 86 | $tags_to_associate = explode(',', $params['tags']); |
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| 87 | } |
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| 88 | |
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| 89 | $removed_tags = array_diff($current_tags_ids, $tags_to_associate); |
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| 90 | $new_tags = array_diff($tags_to_associate, $current_tags_ids); |
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| 91 | |
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| 92 | if (count($removed_tags)>0) { |
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| 93 | if (!t4u_Config::getInstance()->hasPermission('delete')) { |
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| 94 | $message['error'][] = l10n('You are not allowed to delete tags'); |
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| 95 | } else { |
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| 96 | $message['info'] = l10n('Tags updated'); |
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| 97 | } |
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| 98 | } |
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| 99 | if (count($new_tags)>0) { |
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| 100 | if (!t4u_Config::getInstance()->hasPermission('add')) { |
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| 101 | $message['error'][] = l10n('You are not allowed to add tags'); |
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| 102 | $tags_to_associate = array_diff($tags_to_associate, $new_tags); |
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| 103 | } else { |
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| 104 | $message['info'] = l10n('Tags updated'); |
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| 105 | } |
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| 106 | } |
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| 107 | |
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| 108 | if (!empty($tags_to_associate)) { |
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| 109 | $tag_ids = get_tag_ids(implode(',', $tags_to_associate)); |
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| 110 | set_tags($tag_ids, $params['image_id']); |
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| 111 | } |
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| 112 | |
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| 113 | return $message; |
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| 114 | } |
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| 115 | |
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| 116 | private function __makeTagsList($query) { |
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| 117 | $result = pwg_query($query); |
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| 118 | |
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| 119 | $tagslist = array(); |
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| 120 | $associative_tags = array(); |
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| 121 | while ($row = pwg_db_fetch_assoc($result)) { |
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| 122 | $associative_tags['~~'.$row['tag_id'].'~~'] = $row['tag_name']; |
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| 123 | $tagslist[] = array('id' => '~~'.$row['tag_id'].'~~', |
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| 124 | 'name' => $row['tag_name'] |
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| 125 | ); |
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| 126 | |
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| 127 | } |
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| 128 | $tagslist['__associative_tags'] = $associative_tags; |
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| 129 | |
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| 130 | return $tagslist; |
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| 131 | } |
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| 132 | } |
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