[1] | 1 | <?php |
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| 2 | /** |
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[362] | 3 | * The Strangecode Codebase - a general application development framework for PHP |
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| 4 | * For details visit the project site: <http://trac.strangecode.com/codebase/> |
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[396] | 5 | * Copyright 2001-2012 Strangecode, LLC |
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[468] | 6 | * |
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[362] | 7 | * This file is part of The Strangecode Codebase. |
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| 8 | * |
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| 9 | * The Strangecode Codebase is free software: you can redistribute it and/or |
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| 10 | * modify it under the terms of the GNU General Public License as published by the |
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| 11 | * Free Software Foundation, either version 3 of the License, or (at your option) |
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| 12 | * any later version. |
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[468] | 13 | * |
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[362] | 14 | * The Strangecode Codebase is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
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| 17 | * details. |
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[468] | 18 | * |
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[362] | 19 | * You should have received a copy of the GNU General Public License along with |
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| 20 | * The Strangecode Codebase. If not, see <http://www.gnu.org/licenses/>. |
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| 21 | */ |
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| 22 | |
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| 23 | /** |
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[137] | 24 | * Version.inc.php |
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[136] | 25 | * |
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[137] | 26 | * The Version class provides a system for saving, reviewing, and |
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[1] | 27 | * restoring versions of a record of any DB table. All the data in the record is |
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| 28 | * serialized, compressed, and saved in a blob in the version_tbl. Restoring a |
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| 29 | * version simply does a REPLACE INTO of the data. It is very simple, and works |
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| 30 | * with multiple database tables, but the drawback is that relationships for |
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[42] | 31 | * a record cannot be retained. For example, an article from an article_tbl can |
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[1] | 32 | * be saved, but not categories associated to the record in a category_article_tbl. |
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| 33 | * The restored article will simple retain the relationships that the previous |
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| 34 | * current article had. |
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| 35 | * |
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| 36 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 37 | * @version 2.1 |
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| 38 | */ |
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[502] | 39 | class Version |
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| 40 | { |
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[1] | 41 | |
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[468] | 42 | // A place to keep an object instance for the singleton pattern. |
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[484] | 43 | protected static $instance = null; |
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[468] | 44 | |
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[1] | 45 | // Configuration of this object. |
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[484] | 46 | protected $_params = array( |
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[1] | 47 | 'max_qty' => 100, // Never have more than this many versions of each record. |
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| 48 | 'min_qty' => 25, // Keep at least this many versions of each record. |
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| 49 | 'min_days' => 7, // Keep ALL versions within this many days, even if MORE than min_qty. |
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| 50 | 'db_table' => 'version_tbl', |
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[468] | 51 | |
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[146] | 52 | // Automatically create table and verify columns. Better set to false after site launch. |
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[396] | 53 | // This value is overwritten by the $app->getParam('db_create_tables') setting if it is available. |
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[146] | 54 | 'create_table' => true, |
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[396] | 55 | // If true, makes an exact comparison of saved vs. live table schemas. If false, just checks that the saved columns are available. |
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| 56 | 'db_schema_strict' => true, |
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[1] | 57 | ); |
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| 58 | |
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| 59 | // Auth_SQL object from which to access a current user_id. |
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[484] | 60 | protected $_auth; |
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[1] | 61 | |
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| 62 | /** |
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| 63 | * This method enforces the singleton pattern for this class. |
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| 64 | * |
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[139] | 65 | * @return object Reference to the global Lock object. |
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[1] | 66 | * @access public |
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| 67 | * @static |
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| 68 | */ |
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[468] | 69 | public static function &getInstance($auth_object) |
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[1] | 70 | { |
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[468] | 71 | if (self::$instance === null) { |
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| 72 | self::$instance = new self($auth_object); |
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[1] | 73 | } |
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| 74 | |
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[468] | 75 | return self::$instance; |
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[1] | 76 | } |
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| 77 | |
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| 78 | /** |
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| 79 | * Constructor. Pass an Auth object on which to perform user lookups. |
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| 80 | * |
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| 81 | * @param mixed $auth_object An Auth_SQL object. |
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| 82 | */ |
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[468] | 83 | public function __construct($auth_object) |
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[1] | 84 | { |
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[479] | 85 | $app =& App::getInstance(); |
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[136] | 86 | |
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[149] | 87 | if (!method_exists($auth_object, 'get') || !method_exists($auth_object, 'getUsername')) { |
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[136] | 88 | trigger_error('Constructor not provided a valid Auth_* object.', E_USER_ERROR); |
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[19] | 89 | } |
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[42] | 90 | |
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[1] | 91 | $this->_auth = $auth_object; |
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[42] | 92 | |
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[1] | 93 | // Get create tables config from global context. |
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[136] | 94 | if (!is_null($app->getParam('db_create_tables'))) { |
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| 95 | $this->setParam(array('create_table' => $app->getParam('db_create_tables'))); |
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[1] | 96 | } |
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| 97 | } |
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[42] | 98 | |
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[1] | 99 | /** |
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| 100 | * Setup the database table for this class. |
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| 101 | * |
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| 102 | * @access public |
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| 103 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 104 | * @since 26 Aug 2005 17:09:36 |
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| 105 | */ |
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[468] | 106 | public function initDB($recreate_db=false) |
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[1] | 107 | { |
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[479] | 108 | $app =& App::getInstance(); |
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| 109 | $db =& DB::getInstance(); |
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[136] | 110 | |
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[1] | 111 | static $_db_tested = false; |
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[42] | 112 | |
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[1] | 113 | if ($recreate_db || !$_db_tested && $this->getParam('create_table')) { |
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| 114 | if ($recreate_db) { |
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[136] | 115 | $db->query("DROP TABLE IF EXISTS " . $this->getParam('db_table')); |
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[201] | 116 | $app->logMsg(sprintf('Dropping and recreating table %s.', $this->getParam('db_table')), LOG_INFO, __FILE__, __LINE__); |
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[1] | 117 | } |
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[146] | 118 | $db->query("CREATE TABLE IF NOT EXISTS " . $db->escapeString($this->getParam('db_table')) . " ( |
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[484] | 119 | version_id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, |
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[169] | 120 | record_table VARCHAR(255) NOT NULL DEFAULT '', |
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| 121 | record_key VARCHAR(255) NOT NULL DEFAULT '', |
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| 122 | record_val VARCHAR(255) NOT NULL DEFAULT '', |
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| 123 | version_data MEDIUMBLOB NOT NULL, |
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| 124 | version_title VARCHAR(255) NOT NULL DEFAULT '', |
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| 125 | version_number SMALLINT(11) UNSIGNED NOT NULL DEFAULT '0', |
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| 126 | version_notes VARCHAR(255) NOT NULL DEFAULT '', |
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| 127 | saved_by_user_id SMALLINT(11) NOT NULL DEFAULT '0', |
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| 128 | version_datetime DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00', |
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[1] | 129 | KEY record_table (record_table), |
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| 130 | KEY record_key (record_key), |
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| 131 | KEY record_val (record_val) |
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| 132 | )"); |
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[42] | 133 | |
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[136] | 134 | if (!$db->columnExists($this->getParam('db_table'), array( |
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[1] | 135 | 'version_id', |
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| 136 | 'record_table', |
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| 137 | 'record_key', |
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| 138 | 'record_val', |
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| 139 | 'version_data', |
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| 140 | 'version_title', |
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[169] | 141 | 'version_number', |
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[1] | 142 | 'version_notes', |
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[144] | 143 | 'saved_by_user_id', |
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[1] | 144 | 'version_datetime', |
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| 145 | ), false, false)) { |
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[136] | 146 | $app->logMsg(sprintf('Database table %s has invalid columns. Please update this table manually.', $this->getParam('db_table')), LOG_ALERT, __FILE__, __LINE__); |
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[1] | 147 | trigger_error(sprintf('Database table %s has invalid columns. Please update this table manually.', $this->getParam('db_table')), E_USER_ERROR); |
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| 148 | } |
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[42] | 149 | } |
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[1] | 150 | $_db_tested = true; |
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| 151 | } |
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| 152 | |
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| 153 | /** |
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| 154 | * Set the params of this object. |
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| 155 | * |
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| 156 | * @param array $params Array of param keys and values to set. |
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| 157 | */ |
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[468] | 158 | public function setParam($params=null) |
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[1] | 159 | { |
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| 160 | if (isset($params) && is_array($params)) { |
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| 161 | // Merge new parameters with old overriding only those passed. |
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| 162 | $this->_params = array_merge($this->_params, $params); |
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| 163 | } |
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| 164 | } |
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| 165 | |
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| 166 | /** |
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[136] | 167 | * Return the value of a parameter, if it exists. |
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[1] | 168 | * |
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[136] | 169 | * @access public |
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| 170 | * @param string $param Which parameter to return. |
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| 171 | * @return mixed Configured parameter value. |
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[1] | 172 | */ |
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[468] | 173 | public function getParam($param) |
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[1] | 174 | { |
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[479] | 175 | $app =& App::getInstance(); |
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[468] | 176 | |
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[478] | 177 | if (array_key_exists($param, $this->_params)) { |
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[1] | 178 | return $this->_params[$param]; |
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| 179 | } else { |
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[146] | 180 | $app->logMsg(sprintf('Parameter is not set: %s', $param), LOG_DEBUG, __FILE__, __LINE__); |
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[1] | 181 | return null; |
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| 182 | } |
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| 183 | } |
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| 184 | |
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| 185 | /** |
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| 186 | * Saves a version of the current record into the version table. |
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| 187 | * |
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| 188 | * @param string $record_table The table containing the record. |
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| 189 | * @param string $record_key The key column for the record. |
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| 190 | * @param string $record_val The value of the key column for the record. |
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| 191 | * @param string $title The title of this record. Only used for human presentation. |
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| 192 | * |
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| 193 | * @return int The id for the version (mysql last insert id). |
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| 194 | */ |
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[468] | 195 | public function create($record_table, $record_key, $record_val, $title='', $notes='') |
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[1] | 196 | { |
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[479] | 197 | $app =& App::getInstance(); |
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| 198 | $db =& DB::getInstance(); |
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[136] | 199 | |
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[1] | 200 | $this->initDB(); |
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[42] | 201 | |
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[1] | 202 | // Get current record. |
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| 203 | if (!$record = $this->getCurrent($record_table, $record_key, $record_val)) { |
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[136] | 204 | $app->logMsg(sprintf('Could not create %s version, record not found: %s, %s, %s.', $title, $record_table, $record_key, $record_val), LOG_ERR, __FILE__, __LINE__); |
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[1] | 205 | return false; |
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| 206 | } |
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[468] | 207 | |
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[169] | 208 | // Get previous version_number. |
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| 209 | $qid = $db->query(" |
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| 210 | SELECT MAX(version_number) FROM " . $db->escapeString($this->getParam('db_table')) . " |
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| 211 | WHERE record_table = '" . $db->escapeString($record_table) . "' |
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| 212 | AND record_key = '" . $db->escapeString($record_key) . "' |
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| 213 | AND record_val = '" . $db->escapeString($record_val) . "' |
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| 214 | "); |
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| 215 | list($last_version_number) = mysql_fetch_row($qid); |
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[42] | 216 | |
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[1] | 217 | // Clean-up old versions. |
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| 218 | $this->deleteOld($record_table, $record_key, $record_val); |
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[42] | 219 | |
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[1] | 220 | // Save as new version. |
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[159] | 221 | // TODO: after MySQL 5.0.23 is released this query could benefit from INSERT DELAYED. |
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[136] | 222 | $db->query(" |
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[146] | 223 | INSERT INTO " . $db->escapeString($this->getParam('db_table')) . " ( |
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[1] | 224 | record_table, |
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| 225 | record_key, |
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| 226 | record_val, |
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| 227 | version_data, |
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| 228 | version_title, |
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[169] | 229 | version_number, |
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[1] | 230 | version_notes, |
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[144] | 231 | saved_by_user_id, |
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[1] | 232 | version_datetime |
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| 233 | ) VALUES ( |
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[136] | 234 | '" . $db->escapeString($record_table) . "', |
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| 235 | '" . $db->escapeString($record_key) . "', |
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| 236 | '" . $db->escapeString($record_val) . "', |
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| 237 | '" . $db->escapeString(gzcompress(serialize($record), 9)) . "', |
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| 238 | '" . $db->escapeString($title) . "', |
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[169] | 239 | '" . $db->escapeString($last_version_number + 1) . "', |
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[136] | 240 | '" . $db->escapeString($notes) . "', |
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[149] | 241 | '" . $db->escapeString($this->_auth->get('user_id')) . "', |
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[1] | 242 | NOW() |
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| 243 | ) |
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| 244 | "); |
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| 245 | |
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[136] | 246 | return mysql_insert_id($db->getDBH()); |
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[1] | 247 | } |
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| 248 | |
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| 249 | /** |
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| 250 | * Copy a version back into it's original table. |
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| 251 | * |
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| 252 | * @param string $version_id The id of the version to restore. |
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| 253 | * |
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| 254 | * @return int The id for the version (mysql last insert id). |
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| 255 | */ |
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[468] | 256 | public function restore($version_id) |
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[1] | 257 | { |
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[479] | 258 | $app =& App::getInstance(); |
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| 259 | $db =& DB::getInstance(); |
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[136] | 260 | |
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[1] | 261 | $this->initDB(); |
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[42] | 262 | |
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[1] | 263 | // Get version data. |
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[136] | 264 | $qid = $db->query(" |
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[146] | 265 | SELECT * FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 266 | WHERE version_id = '" . $db->escapeString($version_id) . "' |
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[1] | 267 | "); |
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| 268 | if (!$record = mysql_fetch_assoc($qid)) { |
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[497] | 269 | $app->raiseMsg(sprintf(_("Version %s%s not found."), $version_id, (empty($record['version_title']) ? '' : ' (' . $record['version_title'] . ')')), MSG_WARNING, __FILE__, __LINE__); |
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| 270 | $app->logMsg(sprintf('Version %s%s not found.', $version_id, (empty($record['version_title']) ? '' : ' (' . $record['version_title'] . ')')), LOG_WARNING, __FILE__, __LINE__); |
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[1] | 271 | return false; |
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| 272 | } |
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| 273 | $data = unserialize(gzuncompress($record['version_data'])); |
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| 274 | |
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| 275 | // Ensure saved db columns match current table schema. |
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[136] | 276 | if (!$db->columnExists($record['record_table'], array_keys($data), $this->getParam('db_schema_strict'))) { |
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[497] | 277 | $app->raiseMsg(sprintf(_("Version %s%s is not compatible with the current database table."), $version_id, (empty($record['version_title']) ? '' : ' (' . $record['version_title'] . ')')), MSG_ERR, __FILE__, __LINE__); |
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| 278 | $app->logMsg(sprintf('Version %s%s restoration failed, DB schema does not match for table %s.', $version_id, (empty($record['version_title']) ? '' : ' (' . $record['version_title'] . ')'), $record['record_table']), LOG_ALERT, __FILE__, __LINE__); |
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[1] | 279 | return false; |
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| 280 | } |
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| 281 | |
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| 282 | // SQLize the keys of the specified versioned record. |
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[136] | 283 | $replace_keys = join(",\n", array_map(array($db, 'escapeString'), array_keys($data))); |
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[42] | 284 | |
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[1] | 285 | // SQLize the keys of the values of the specified versioned record. (These are more complex because we need to account for SQL null values.) |
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| 286 | $replace_values = ''; |
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| 287 | $comma = ''; |
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| 288 | foreach ($data as $v) { |
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[136] | 289 | $replace_values .= is_null($v) ? "$comma\nNULL" : "$comma\n'" . $db->escapeString($v) . "'"; |
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[1] | 290 | $comma = ','; |
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| 291 | } |
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[42] | 292 | |
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[502] | 293 | // Disable foreign_key_checks to prevent ON DELETE triggers or restrictions. |
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| 294 | $db->query("SET SESSION foreign_key_checks = 0"); |
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| 295 | // Replace current record with specified versioned record. Consider converting this SQL to use INSERT ⊠ON DUPLICATE KEY UPDATE ⊠|
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[136] | 296 | $db->query(" |
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[502] | 297 | REPLACE INTO " . $record['record_table'] . " ( |
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[1] | 298 | $replace_keys |
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| 299 | ) VALUES ( |
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| 300 | $replace_values |
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[502] | 301 | ); |
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[1] | 302 | "); |
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[502] | 303 | // Re-enable foreign_key_checks. |
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| 304 | $db->query("SET SESSION foreign_key_checks = 1"); |
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[42] | 305 | |
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[1] | 306 | return $record; |
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| 307 | } |
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| 308 | |
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| 309 | /** |
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| 310 | * Version garbage collection. Deletes versions older than min_days |
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| 311 | * when quantity of versions exceeds min_qty. If quantity |
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[42] | 312 | * exceeds 100 within min_days, the oldest are deleted to bring the |
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[1] | 313 | * quantity back down to min_qty. |
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| 314 | * |
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| 315 | * @param string $record_table The table containing the record. |
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| 316 | * @param string $record_key The key column for the record. |
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| 317 | * @param string $record_val The value of the key column for the record. |
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| 318 | * |
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| 319 | * @return mixed Array of versions, or false if none. |
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| 320 | */ |
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[468] | 321 | public function deleteOld($record_table, $record_key, $record_val) |
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[1] | 322 | { |
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[479] | 323 | $db =& DB::getInstance(); |
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[468] | 324 | |
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[1] | 325 | $this->initDB(); |
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[42] | 326 | |
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[1] | 327 | // Get total number of versions for this record. |
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[136] | 328 | $qid = $db->query(" |
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[146] | 329 | SELECT COUNT(*) FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 330 | WHERE record_table = '" . $db->escapeString($record_table) . "' |
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| 331 | AND record_key = '" . $db->escapeString($record_key) . "' |
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| 332 | AND record_val = '" . $db->escapeString($record_val) . "' |
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[1] | 333 | "); |
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| 334 | list($v_count) = mysql_fetch_row($qid); |
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[42] | 335 | |
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[1] | 336 | if ($v_count > $this->getParam('min_qty')) { |
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| 337 | if ($v_count > $this->getParam('max_qty')) { |
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| 338 | // To prevent a record bomb, limit max number of versions to max_qty. |
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| 339 | // First query for oldest records, selecting enough to bring total number down to min_qty. |
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[136] | 340 | $qid = $db->query(" |
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[146] | 341 | SELECT version_id FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 342 | WHERE record_table = '" . $db->escapeString($record_table) . "' |
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| 343 | AND record_key = '" . $db->escapeString($record_key) . "' |
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| 344 | AND record_val = '" . $db->escapeString($record_val) . "' |
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[1] | 345 | ORDER BY version_datetime ASC |
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| 346 | LIMIT " . ($v_count - $this->getParam('min_qty')) . " |
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| 347 | "); |
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| 348 | while (list($old_id) = mysql_fetch_row($qid)) { |
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| 349 | $old_versions[] = $old_id; |
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| 350 | } |
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[136] | 351 | $db->query(" |
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[146] | 352 | DELETE FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[1] | 353 | WHERE version_id IN ('" . join("','", $old_versions) . "') |
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| 354 | "); |
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| 355 | } else { |
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[49] | 356 | // Delete versions older than min_days, while still keeping min_qty. |
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[136] | 357 | $qid = $db->query(" |
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[146] | 358 | SELECT version_id FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 359 | WHERE record_table = '" . $db->escapeString($record_table) . "' |
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| 360 | AND record_key = '" . $db->escapeString($record_key) . "' |
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| 361 | AND record_val = '" . $db->escapeString($record_val) . "' |
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[1] | 362 | AND DATE_ADD(version_datetime, INTERVAL '" . $this->getParam('min_days') . "' DAY) < NOW() |
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| 363 | ORDER BY version_datetime ASC |
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| 364 | LIMIT " . ($v_count - $this->getParam('min_qty')) . " |
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| 365 | "); |
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| 366 | while (list($old_id) = mysql_fetch_row($qid)) { |
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| 367 | $old_versions[] = $old_id; |
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| 368 | } |
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| 369 | if (sizeof($old_versions) > 0) { |
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[136] | 370 | $db->query(" |
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[146] | 371 | DELETE FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[1] | 372 | WHERE version_id IN ('" . join("','", $old_versions) . "') |
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| 373 | "); |
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| 374 | } |
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| 375 | } |
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| 376 | } |
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| 377 | } |
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| 378 | |
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| 379 | /** |
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| 380 | * Get a list of versions of specified record. |
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| 381 | * |
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| 382 | * @param string $record_table The table containing the record. |
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| 383 | * @param string $record_key The key column for the record. |
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| 384 | * @param string $record_val The value of the key column for the record. |
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| 385 | * |
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| 386 | * @return mixed Array of versions, or false if none. |
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| 387 | */ |
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[468] | 388 | public function getList($record_table, $record_key, $record_val) |
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[1] | 389 | { |
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[479] | 390 | $db =& DB::getInstance(); |
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[468] | 391 | |
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[1] | 392 | $this->initDB(); |
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[42] | 393 | |
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[1] | 394 | // Get versions of this record. |
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[136] | 395 | $qid = $db->query(" |
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[468] | 396 | SELECT |
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[169] | 397 | version_id, |
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| 398 | saved_by_user_id, |
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| 399 | version_datetime, |
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| 400 | version_title, |
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| 401 | version_number, |
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| 402 | version_notes |
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[146] | 403 | FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 404 | WHERE record_table = '" . $db->escapeString($record_table) . "' |
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| 405 | AND record_key = '" . $db->escapeString($record_key) . "' |
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| 406 | AND record_val = '" . $db->escapeString($record_val) . "' |
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[1] | 407 | ORDER BY version_datetime DESC |
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[15] | 408 | "); |
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[1] | 409 | $versions = array(); |
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| 410 | while ($row = mysql_fetch_assoc($qid)) { |
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| 411 | // Get admin usernames. |
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[161] | 412 | $row['editor'] = $this->_auth->getUsername($row['saved_by_user_id']); |
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[1] | 413 | $versions[] = $row; |
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| 414 | } |
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| 415 | return $versions; |
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| 416 | } |
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| 417 | |
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| 418 | /** |
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| 419 | * Get the version record for a specified version id. |
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| 420 | * |
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| 421 | * @param string $version_id The id of the version to restore. |
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| 422 | * |
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| 423 | * @return mixed Array of data saved in version, or false if none. |
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| 424 | */ |
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[468] | 425 | public function getVerson($version_id) |
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[1] | 426 | { |
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[479] | 427 | $db =& DB::getInstance(); |
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[468] | 428 | |
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[1] | 429 | $this->initDB(); |
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[42] | 430 | |
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[1] | 431 | // Get version data. |
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[136] | 432 | $qid = $db->query(" |
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[146] | 433 | SELECT * FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 434 | WHERE version_id = '" . $db->escapeString($version_id) . "' |
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[1] | 435 | "); |
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| 436 | return mysql_fetch_assoc($qid); |
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| 437 | } |
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| 438 | |
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| 439 | /** |
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| 440 | * Get the data stored for a specified version id. |
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| 441 | * |
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| 442 | * @param string $version_id The id of the version to restore. |
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| 443 | * |
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| 444 | * @return mixed Array of data saved in version, or false if none. |
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| 445 | */ |
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[468] | 446 | public function getData($version_id) |
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[1] | 447 | { |
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[479] | 448 | $db =& DB::getInstance(); |
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[468] | 449 | |
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[1] | 450 | $this->initDB(); |
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[42] | 451 | |
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[1] | 452 | // Get version data. |
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[136] | 453 | $qid = $db->query(" |
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[146] | 454 | SELECT * FROM " . $db->escapeString($this->getParam('db_table')) . " |
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[136] | 455 | WHERE version_id = '" . $db->escapeString($version_id) . "' |
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[1] | 456 | "); |
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| 457 | $record = mysql_fetch_assoc($qid); |
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| 458 | if (isset($record['version_data'])) { |
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| 459 | return unserialize(gzuncompress($record['version_data'])); |
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| 460 | } else { |
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| 461 | return false; |
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| 462 | } |
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| 463 | } |
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| 464 | |
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| 465 | /** |
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| 466 | * Get the current record data from the original table. |
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| 467 | * |
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| 468 | * @param string $version_id The id of the version to restore. |
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| 469 | * |
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| 470 | * @return mixed Array of data saved in version, or false if none. |
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| 471 | */ |
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[468] | 472 | public function getCurrent($record_table, $record_key, $record_val) |
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[1] | 473 | { |
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[479] | 474 | $db =& DB::getInstance(); |
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[502] | 475 | $app =& App::getInstance(); |
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[468] | 476 | |
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[1] | 477 | $this->initDB(); |
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[42] | 478 | |
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[502] | 479 | if (!$record_table || !$record_key || !$record_val) { |
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| 480 | $app->logMsg(sprintf('Invalid current version args: %s, %s, %s.', $record_table, $record_key, $record_val), LOG_ERR, __FILE__, __LINE__); |
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| 481 | return false; |
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| 482 | } |
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| 483 | |
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[136] | 484 | $qid = $db->query(" |
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| 485 | SELECT * FROM " . $db->escapeString($record_table) . " |
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| 486 | WHERE " . $db->escapeString($record_key) . " = '" . $db->escapeString($record_val) . "' |
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[1] | 487 | "); |
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| 488 | if ($record = mysql_fetch_assoc($qid)) { |
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| 489 | return $record; |
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| 490 | } else { |
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| 491 | return false; |
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| 492 | } |
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| 493 | } |
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| 494 | |
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| 495 | |
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| 496 | } // End of class. |
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