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<?php |
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/** |
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* Provides database connectivity |
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* |
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* PHP Version 5 |
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* |
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* @category Core |
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* @package Database |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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namespace csphere\core\database; |
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/** |
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* Provides database connectivity |
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* |
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* @category Core |
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* @package Database |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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abstract class Base extends \csphere\core\service\Drivers |
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{ |
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/** |
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* Stores the logger object |
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**/ |
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protected $logger = null; |
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/** |
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* Stores the database prefix |
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**/ |
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protected $prefix = ''; |
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/** |
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* Creates the database handler object |
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* |
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* @param array $config Configuration details as an array |
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* |
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* @return \csphere\core\database\Base |
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**/ |
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public function __construct(array $config) |
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{ |
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parent::__construct($config); |
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// Set prefix for tables |
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$this->prefix = $this->config['prefix']; |
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// Set logger object |
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$this->logger = $this->loader->load('logs'); |
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} |
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/** |
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* Logs database queries |
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* |
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* @param string $query The database query for this case |
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* @param array $assoc Array with columns and values |
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* @param boolean $log Defaults to true which enables log files if used |
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* |
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* @return void |
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**/ |
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protected function log($query, array $assoc, $log = true) |
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{ |
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// Replace assoc data to make queries readable |
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if ($assoc != []) { |
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foreach ($assoc AS $key => $value) { |
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$query = str_replace($key, '\'' . $value . '\'', $query); |
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} |
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} |
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$this->logger->log('database', $query, $log); |
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} |
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/** |
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* Handles errors for the database connection |
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* |
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* @param string $query The database query for this case |
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* @param array $assoc Array with columns and values |
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* @param string $msg The error message if already known |
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* @param boolean $more Append query and and data to message |
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* |
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* @throws \Exception |
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* |
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* @return void |
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**/ |
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protected function error($query, array $assoc, $msg = '', $more = true) |
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{ |
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// Check for error message if not provided |
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$error = empty($msg) ? 'Unknown' : $msg; |
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if ($more === true) { |
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// Append query string and data keys |
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$error .= "\n" . 'Query: ' . $query . "\n" . 'Data: Array('; |
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$data = ''; |
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foreach ($assoc AS $key => $value) { |
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$data .= '\'' . $key . '\', '; |
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} |
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// Clear unused var |
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unset($value); |
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$error .= substr($data, 0, -2) . ')'; |
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} |
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// Throw exception |
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throw new \Exception($error); |
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} |
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/** |
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* Returns a formatted array with statistics |
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* |
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* @return array |
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**/ |
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public function info() |
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{ |
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// Build array with information to return |
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$info = $this->config; |
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unset($info['password'], $info['file']); |
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$more = ['version' => '', |
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'client' => '', |
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'server' => '', |
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'size' => '', |
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'encoding' => '', |
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'tables' => '']; |
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$info = array_merge($info, $more); |
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return $info; |
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} |
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/** |
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* Handle database driver specific transactions |
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* |
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* @param string $command One of these strings: begin, commit, rollback |
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* |
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* @return boolean |
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**/ |
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abstract public function transaction($command); |
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/** |
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* Sends a command to the database and gets the affected rows |
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* |
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* @param string $prepare Prepared query string with placeholders |
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* @param array $assoc Array with columns and values |
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* @param boolean $replace If more than {pre} needs to be replaced |
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* @param boolean $insertid Return the last insert id instead of a rowcount |
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* @param boolean $log Defaults to true which enables log files if used |
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* |
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* @return integer |
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**/ |
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abstract public function exec( |
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$prepare, array $assoc, $replace = false, $insertid = false, $log = true |
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); |
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/** |
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* Sends a query to the database and fetches the result |
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* |
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* @param string $prepare Prepared query string with placeholders |
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* @param array $assoc Array with columns and values |
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* @param integer $first Number of the first dataset to show |
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* @param integer $max Number of datasets to show from first on |
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* |
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* @return array |
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**/ |
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abstract public function query($prepare, array $assoc, $first = 0, $max = 1); |
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} |
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Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.