57 lines
1.4 KiB
PHP
57 lines
1.4 KiB
PHP
<?php
|
|
|
|
namespace SilverStripe\ORM\Connect;
|
|
|
|
use PDOStatement;
|
|
use PDO;
|
|
|
|
/**
|
|
* A result-set from a PDO database.
|
|
*/
|
|
class PDOQuery extends Query
|
|
{
|
|
/**
|
|
* The internal MySQL handle that points to the result set.
|
|
* @var PDOStatement
|
|
*/
|
|
protected $statement = null;
|
|
|
|
protected $results = null;
|
|
|
|
/**
|
|
* Hook the result-set given into a Query class, suitable for use by SilverStripe.
|
|
* @param PDOStatement $statement The internal PDOStatement containing the results
|
|
*/
|
|
public function __construct(PDOStatement $statement)
|
|
{
|
|
$this->statement = $statement;
|
|
// Since no more than one PDOStatement for any one connection can be safely
|
|
// traversed, each statement simply requests all rows at once for safety.
|
|
// This could be re-engineered to call fetchAll on an as-needed basis
|
|
$this->results = $statement->fetchAll(PDO::FETCH_ASSOC);
|
|
$statement->closeCursor();
|
|
}
|
|
|
|
public function seek($row)
|
|
{
|
|
$this->rowNum = $row - 1;
|
|
return $this->nextRecord();
|
|
}
|
|
|
|
public function numRecords()
|
|
{
|
|
return count($this->results);
|
|
}
|
|
|
|
public function nextRecord()
|
|
{
|
|
$index = $this->rowNum + 1;
|
|
|
|
if (isset($this->results[$index])) {
|
|
return $this->results[$index];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|