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<?php
class MySQLQuerier extends AbstractSQLQuerier
{
private $query_var_replacator;
public function __construct(DBConnection $connection, SQLQueryTranslator $translator)
{
parent::__construct($connection, $translator);
$this->query_var_replacator = new SQLQueryVars($this);
}
public function select($query, $parameters = array(), $fetch_mode = SelectQueryResult::FETCH_ASSOC)
{
$resource = $this->execute($query, $parameters);
return new MySQLSelectQueryResult($query, $parameters, $resource, $fetch_mode);
}
public function inject($query, $parameters = array())
{
$resource = $this->execute($query, $parameters);
return new MySQLInjectQueryResult($query, $parameters, $resource, $this->link);
}
public function escape($value)
{
return mysqli_real_escape_string($this->link, $value);
}
private function execute($query, $parameters)
{
$query = $this->prepare($query);
if (!empty($parameters))
{
$query = $this->query_var_replacator->replace($query, $parameters);
}
$resource = mysqli_query($this->link, $query);
$has_error = mysqli_error($this->link) !== '' && mysqli_errno($this->link) > 0;
if ($resource === false && $has_error)
{
throw new MySQLQuerierException('invalid query', $query);
}
$this->display_database_query($query);
return $resource;
}
private function display_database_query($query)
{
if (Debug::is_display_database_query_enabled())
{
Debug::dump($query);
Debug::print_stacktrace(4);
}
}
}
?>