/** * __construct() - For concrete implementation of Table * * @param string|array $config string can reference a \libDb\Registry key for a db adapter * OR it can reference the name of a table * @param array|Definition $definition */ public function __construct($config = array(), $definition = null) { if ($definition !== null && is_array($definition)) { $definition = new Definition($definition); } if (is_string($config)) { if (\libDb\Registry::isRegistered($config)) { trigger_error(__CLASS__ . '::' . __METHOD__ . '(\'registryName\') is not valid usage of \\libDb\\Table, ' . 'try extending \\libDb\\AbstractTable in your extending classes.', E_USER_NOTICE); $config = array(self::ADAPTER => $config); } else { // process this as table with or without a definition if ($definition instanceof Definition && $definition->hasTableConfig($config)) { // this will have DEFINITION_CONFIG_NAME & DEFINITION $config = $definition->getTableConfig($config); } else { $config = array(self::NAME => $config); } } } parent::__construct($config); }
/** * Initializes metadata. * * If metadata cannot be loaded from cache, adapter's describeTable() method is called to discover metadata * information. Returns true if and only if the metadata are loaded from cache. * * @return boolean * @throws Exception */ protected function _setupMetadata() { if ($this->metadataCacheInClass() && count($this->_metadata) > 0) { return true; } // Assume that metadata will be loaded from cache $isMetadataFromCache = true; // If $this has no metadata cache but the class has a default metadata cache if (null === $this->_metadataCache && null !== self::$_defaultMetadataCache) { // Make $this use the default metadata cache of the class $this->_setMetadataCache(self::$_defaultMetadataCache); } // If $this has a metadata cache if (null !== $this->_metadataCache) { // Define the cache identifier where the metadata are saved //get db configuration $dbConfig = $this->_db->getConfig(); $port = isset($dbConfig['options']['port']) ? ':' . $dbConfig['options']['port'] : (isset($dbConfig['port']) ? ':' . $dbConfig['port'] : null); $host = isset($dbConfig['options']['host']) ? ':' . $dbConfig['options']['host'] : (isset($dbConfig['host']) ? ':' . $dbConfig['host'] : null); // Define the cache identifier where the metadata are saved $cacheId = md5($port . $host . '/' . $dbConfig['dbname'] . ':' . $this->_schema . '.' . $this->_name); } // If $this has no metadata cache or metadata cache misses if (null === $this->_metadataCache || !($metadata = $this->_metadataCache->load($cacheId))) { // Metadata are not loaded from cache $isMetadataFromCache = false; // Fetch metadata from the adapter's describeTable() method $metadata = $this->_db->describeTable($this->_name, $this->_schema); // If $this has a metadata cache, then cache the metadata if (null !== $this->_metadataCache && !$this->_metadataCache->save($metadata, $cacheId)) { trigger_error('Failed saving metadata to metadataCache', E_USER_NOTICE); } } // Assign the metadata to $this $this->_metadata = $metadata; // Return whether the metadata were loaded from cache return $isMetadataFromCache; }