<?php
  /**
   * Copyright (c) 2013 Thomas Müller <deepdiver@owncloud.com>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  namespace OC\DB;
  
  
  class ConnectionWrapper implements \OCP\IDBConnection {
  
  	private $connection;
  
  	public function __construct(Connection $conn) {
  		$this->connection = $conn;
  	}
  
  	/**
  	 * Used to the owncloud database access away
  	 * @param string $sql the sql query with ? placeholder for params
  	 * @param int $limit the maximum number of rows
  	 * @param int $offset from which row we want to start
  	 * @return \Doctrine\DBAL\Driver\Statement The prepared statement.
  	 */
  	public function prepare($sql, $limit = null, $offset = null)
  	{
  		return $this->connection->prepare($sql, $limit, $offset);
  	}
  
  	/**
  	 * Used to get the id of the just inserted element

  	 * @param string $table the name of the table where we inserted the item
  	 * @return string the id of the inserted element

  	 */
  	public function lastInsertId($table = null)
  	{
  		return $this->connection->lastInsertId($table);
  	}
  
  	/**
  	 * Insert a row if a matching row doesn't exists.

  	 * @param string $table The table name (will replace *PREFIX*) to perform the replace on.
  	 * @param array $input

  	 *
  	 * The input array if in the form:
  	 *
  	 * array ( 'id' => array ( 'value' => 6,
  	 *    'key' => true
  	 *    ),
  	 *    'name' => array ('value' => 'Stoyan'),
  	 *    'family' => array ('value' => 'Stefanov'),
  	 *    'birth_date' => array ('value' => '1975-06-20')
  	 *    );
  	 * @return bool
  	 *
  	 */
  	public function insertIfNotExist($table, $input)
  	{
  		return $this->connection->insertIfNotExist($table, $input);
  	}
  
  	/**
  	 * Start a transaction
  	 * @return bool TRUE on success or FALSE on failure
  	 */
  	public function beginTransaction()
  	{
  		return $this->connection->beginTransaction();
  	}
  
  	/**
  	 * Commit the database changes done during a transaction that is in progress
  	 * @return bool TRUE on success or FALSE on failure
  	 */
  	public function commit()
  	{
  		return $this->connection->commit();
  	}
  
  	/**
  	 * Rollback the database changes done during a transaction that is in progress
  	 * @return bool TRUE on success or FALSE on failure
  	 */
  	public function rollBack()
  	{
  		return $this->connection->rollBack();
  	}
  
  	/**
  	 * Gets the error code and message as a string for logging
  	 * @return string
  	 */
  	public function getError()
  	{
  		return $this->connection->getError();
  	}
  }