public function datatype($type)
{
static $types = array('blob' => array('type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '65535'), 'bool' => array('type' => 'bool'), 'bigint unsigned' => array('type' => 'int', 'min' => '0', 'max' => '18446744073709551615'), 'datetime' => array('type' => 'string'), 'decimal unsigned' => array('type' => 'float', 'exact' => TRUE, 'min' => '0'), 'double' => array('type' => 'float'), 'double precision unsigned' => array('type' => 'float', 'min' => '0'), 'double unsigned' => array('type' => 'float', 'min' => '0'), 'enum' => array('type' => 'string'), 'fixed' => array('type' => 'float', 'exact' => TRUE), 'fixed unsigned' => array('type' => 'float', 'exact' => TRUE, 'min' => '0'), 'float unsigned' => array('type' => 'float', 'min' => '0'), 'geometry' => array('type' => 'string', 'binary' => TRUE), 'int unsigned' => array('type' => 'int', 'min' => '0', 'max' => '4294967295'), 'integer unsigned' => array('type' => 'int', 'min' => '0', 'max' => '4294967295'), 'longblob' => array('type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '4294967295'), 'longtext' => array('type' => 'string', 'character_maximum_length' => '4294967295'), 'mediumblob' => array('type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '16777215'), 'mediumint' => array('type' => 'int', 'min' => '-8388608', 'max' => '8388607'), 'mediumint unsigned' => array('type' => 'int', 'min' => '0', 'max' => '16777215'), 'mediumtext' => array('type' => 'string', 'character_maximum_length' => '16777215'), 'national varchar' => array('type' => 'string'), 'numeric unsigned' => array('type' => 'float', 'exact' => TRUE, 'min' => '0'), 'nvarchar' => array('type' => 'string'), 'point' => array('type' => 'string', 'binary' => TRUE), 'real unsigned' => array('type' => 'float', 'min' => '0'), 'set' => array('type' => 'string'), 'smallint unsigned' => array('type' => 'int', 'min' => '0', 'max' => '65535'), 'text' => array('type' => 'string', 'character_maximum_length' => '65535'), 'tinyblob' => array('type' => 'string', 'binary' => TRUE, 'character_maximum_length' => '255'), 'tinyint' => array('type' => 'int', 'min' => '-128', 'max' => '127'), 'tinyint unsigned' => array('type' => 'int', 'min' => '0', 'max' => '255'), 'tinytext' => array('type' => 'string', 'character_maximum_length' => '255'), 'year' => array('type' => 'string'));
$type = str_replace(' zerofill', '', $type);
if (isset($types[$type])) {
return $types[$type];
}
return parent::datatype($type);
}
public function disconnect()
{
// Destroy the PDO object
$this->_connection = NULL;
return parent::disconnect();
}
/**
* Execute the current query on the given database.
*
* @param mixed $db Database instance or name of instance
* @param string result object classname, TRUE for stdClass or FALSE for array
* @param array result object constructor arguments
* @return object Database_Result for SELECT queries
* @return mixed the insert id for INSERT queries
* @return integer number of affected rows for all other queries
*/
public function execute($db = NULL, $as_object = NULL, $object_params = NULL)
{
if (!is_object($db)) {
// Get the database instance
$db = Database::instance($db);
}
if ($as_object === NULL) {
$as_object = $this->_as_object;
}
if ($object_params === NULL) {
$object_params = $this->_object_params;
}
// Compile the SQL query
$sql = $this->compile($db);
if ($this->_lifetime !== NULL and $this->_type === Database::SELECT) {
// Set the cache key based on the database instance name and SQL
$cache_key = 'Database::query("' . $db . '", "' . $sql . '")';
// Read the cache first to delete a possible hit with lifetime <= 0
if (($result = Profiler::cache($cache_key, NULL, $this->_lifetime)) !== NULL and !$this->_force_execute) {
// Return a cached result
return new Database_Result_Cached($result, $sql, $as_object, $object_params);
}
}
// Execute the query
$result = $db->query($this->_type, $sql, $as_object, $object_params);
if (isset($cache_key) and $this->_lifetime > 0) {
// Cache the result array
Profiler::cache($cache_key, $result->as_array(), $this->_lifetime);
}
return $result;
}