/**
* Get Table information
*
* @param string $tableName
* @return array
*/
protected function getTableDescription($tableName)
{
if (!isset($this->_tableMetadata[$tableName])) {
$this->_tableMetadata[$tableName] = $this->_connection->describeTable($tableName);
}
return $this->_tableMetadata[$tableName];
}
/**
* 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 \Zend\DB\Table\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();
// Define the cache identifier where the metadata are saved
$cacheId = md5((isset($dbConfig['options']['port']) ? ':' . $dbConfig['options']['port'] : null) . (isset($dbConfig['options']['host']) ? ':' . $dbConfig['options']['host'] : null) . '/' . $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 $isMetadataFromCache;
}
/**
* Initializes metadata.
*
* If metadata cannot be loaded from cache, adapter's describeTable() method is called to discover metadata
* information. Returns true if and only if the metadata are loaded from cache.
*
* @return boolean
* @throws \Zend\Db\Table\Exception
*/
protected function _setupMetadata()
{
if ($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) {
$cacheId = $this->_cacheId();
}
// If $this has no metadata cache or metadata cache misses
if (null === $this->_metadataCache || !($metadata = $this->_metadataCache->getItem($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->setItem($cacheId, $metadata)) {
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;
}
