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115 lines
2.3 KiB
115 lines
2.3 KiB
<?php
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/**
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* @copyright NetMonsters <team@netmonsters.ru>
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* @link http://netmonsters.ru
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* @package Majestic
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* @subpackage db
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* @since 2010-02-19
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*/
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abstract class DbStatement
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{
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/**
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* @var DbDriver
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*/
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protected $driver;
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/**
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* @var string
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*/
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protected $request;
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protected $params = array();
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protected $result;
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public function __construct($driver, $request)
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{
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$this->driver = $driver;
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$this->request = $request;
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}
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/**
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* @param array $params
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* @return bool
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*/
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public function execute($params = null)
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{
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if (is_array($params)) {
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foreach ($params as $param => &$value) {
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$this->bindParam($param, $value);
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}
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}
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return $this->driverExecute($this->assemble());
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}
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public function __destruct()
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{
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$this->close();
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}
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/**
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* @param mixed $style
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* @return array
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*/
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public function fetchAll($style = Db::FETCH_OBJ)
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{
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$data = array();
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while ($row = $this->fetch($style)) {
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$data[] = $row;
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}
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return $data;
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}
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/**
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* @param string $field
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* @return array Value of queried field for all matching rows
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*/
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public function fetchColumn($field)
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{
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$data = array();
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while ($row = $this->fetch(Db::FETCH_ASSOC)) {
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$data[] = $row[$field];
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}
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return $data;
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}
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/**
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* @param string $field
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* @return mixed Value of queried filed for first matching row
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*/
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public function fetchField($field)
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{
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$row = $this->fetch(Db::FETCH_ASSOC);
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if (isset($row[$field])) {
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return $row[$field];
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}
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return false;
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}
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/* Abstract methods */
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abstract public function bindParam($param, &$value);
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abstract protected function assemble();
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abstract public function fetch($style = Db::FETCH_OBJ);
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abstract public function fetchObject($class = 'stdClass');
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abstract public function close();
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/**
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* @return int
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*/
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abstract public function affectedRows();
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abstract public function numRows();
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/**
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* @param mixed $request
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* @return bool
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*/
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abstract protected function driverExecute($request);
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}
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