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<?php
/**
* Extension independent database result
*/
declare(strict_types=1);
namespace PhpMyAdmin\Tests\Stubs;
use Generator;
use PhpMyAdmin\Dbal\ResultInterface;
use PhpMyAdmin\FieldMetadata;
use function array_column;
use function is_string;
/**
* Extension independent database result
*/
class DummyResult implements ResultInterface
{
/**
* The result identifier produced by the DBiExtension
*
* @var int|false $result
*/
private $result;
/**
* Link to DbiDummy instance
*
* @var DbiDummy
*/
private $link;
/**
* @param int|false $result
*/
public function __construct(DbiDummy $link, $result)
{
$this->link = $link;
$this->result = $result;
}
/**
* Returns a generator that traverses through the whole result set
* and returns each row as an associative array
*
* @return Generator<int, array<string, string|null>, mixed, void>
*/
public function getIterator(): Generator
{
if ($this->result === false) {
return;
}
$this->seek(0);
while ($row = $this->fetchAssoc()) {
yield $row;
}
}
/**
* Returns the next row of the result with associative keys
*
* @return array<string,string|null>
*/
public function fetchAssoc(): array
{
if ($this->result === false) {
return [];
}
return $this->link->fetchAssoc($this->result) ?? [];
}
/**
* Returns the next row of the result with numeric keys
*
* @return array<int,string|null>
*/
public function fetchRow(): array
{
if ($this->result === false) {
return [];
}
return $this->link->fetchRow($this->result) ?? [];
}
/**
* Returns a single value from the given result; false on error
*
* @param int|string $field
*
* @return string|false|null
*/
public function fetchValue($field = 0)
{
if (is_string($field)) {
$row = $this->fetchAssoc();
} else {
$row = $this->fetchRow();
}
return $row[$field] ?? false;
}
/**
* Returns all rows of the result
*
* @return array<int, array<string,string|null>>
*/
public function fetchAllAssoc(): array
{
if ($this->result === false) {
return [];
}
// This function should return all rows, not only the remaining rows
$this->seek(0);
$rows = [];
while ($row = $this->fetchAssoc()) {
$rows[] = $row;
}
return $rows;
}
/**
* Returns values from the first column of each row
*
* @return array<int, string|null>
*/
public function fetchAllColumn(): array
{
if ($this->result === false) {
return [];
}
// This function should return all rows, not only the remaining rows
$this->seek(0);
$rows = [];
while ($row = $this->fetchRow()) {
$rows[] = $row[0];
}
return $rows;
}
/**
* Returns values as single dimensional array where the key is the first column
* and the value is the second column, e.g.
* SELECT id, name FROM users
* produces: ['123' => 'John', '124' => 'Jane']
*
* @return array<string, string|null>
*/
public function fetchAllKeyPair(): array
{
if ($this->result === false) {
return [];
}
// This function should return all rows, not only the remaining rows
$this->seek(0);
$rows = [];
while ($row = $this->fetchRow()) {
$rows[$row[0] ?? ''] = $row[1];
}
return $rows;
}
/**
* Returns the number of fields in the result
*/
public function numFields(): int
{
if ($this->result === false) {
return 0;
}
return $this->link->numFields($this->result);
}
/**
* Returns the number of rows in the result
*
* @return string|int
* @psalm-return int|numeric-string
*/
public function numRows()
{
return $this->link->numRows($this->result);
}
/**
* Adjusts the result pointer to an arbitrary row in the result
*
* @param int $offset offset to seek
*
* @return bool True if the offset exists, false otherwise
*/
public function seek(int $offset): bool
{
if ($this->result === false) {
return false;
}
return $this->link->dataSeek($this->result, $offset);
}
/**
* returns meta info for fields in $result
*
* @return array<int, FieldMetadata> meta info for fields in $result
*/
public function getFieldsMeta(): array
{
if ($this->result === false) {
return [];
}
return $this->link->getFieldsMeta($this->result);
}
/**
* Returns the names of the fields in the result
*
* @return array<int, string> Fields names
*/
public function getFieldNames(): array
{
if ($this->result === false) {
return [];
}
return array_column($this->link->getFieldsMeta($this->result), 'name');
}
}
|
