PHP code example of yiisoft / data

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

yiisoft / data example snippets

$reader = new MyDataReader(...);
$result = $reader->read(); 

// using is foreach
foreach ($result as $item) {
    // ...
}

// preparing array
$dataArray = $result instanceof \Traversable ? iterator_to_array($result, true) : (array)$result;

$reader = (new MyDataReader(...))->withLimit(10);
foreach ($reader->read() as $item) {
    // ...
}

$reader = new MyDataReader(...);
$total = count($reader);

$filter = new All(
    new GreaterThan('id', 3),
    new Like('name', 'agent')
);

$reader = (new MyDataReader(...))
    ->withFilter($filter);

$data = $reader->read();

$dataReader->withFilter((new All())->withCriteriaArray([
    ['=', 'id', 88],
    [
       'or',
       [
          ['=', 'color', 'red'],
          ['=', 'state', 1],
       ]
    ]
]));

// own filter for filtering
class OwnNotTwoFilter implenents FilterInterface
{
    private $field;

    public function __construct($field)
    {
        $this->field = $field;
    }
    public static function getOperator(): string
    {
        return 'my!2';
    }
    public function toArray(): array
    {
        return [static::getOperator(), $this->field];
    }
}

// own iterable filter handler for matching
class OwnIterableNotTwoFilterHandler implements IterableFilterHandlerInterface
{
    public function getOperator(): string
    {
        return OwnNotTwoFilter::getOperator();
    }

    public function match(array $item, array $arguments, array $filterHandlers): bool
    {
        [$field] = $arguments;
        return $item[$field] != 2;
    }
}

// and using it on a data reader
$filter = new All(
    new LessThan('id', 8),
    new OwnNotTwoFilter('id'),
);

$reader = (new MyDataReader(...))
    ->withFilter($filter)
    ->withFilterHandlers(
        new OwnIterableNotTwoFilter()
        new OwnSqlNotTwoFilter()    // for SQL
        // and for any supported readers...
    );

$data = $reader->read();

$sorting = Sort::only([
    'id',
    'name'
]);

$sorting = $sorting->withOrder(['name' => 'asc']);
// or $sorting = $sorting->withOrderString('name');

$reader = (new MyDataReader(...))
    ->withSort($sorting);

$data = $reader->read();

$reader = (new MyDataReader(...))->withOffset(10);

$reader = (new MyDataReader(...));

$paginator = (new OffsetPaginator($dataReader))
            ->withPageSize(10)
            ->withCurrentPage(2);


$total = $paginator->getTotalPages();
$data = $paginator->read();

$sort = Sort::only(['id', 'name'])->withOrderString('id');

$dataReader = (new MyDataReader(...))
    ->withSort($sort);

$paginator = (new KeysetPaginator($dataReader))
    ->withPageSize(10)
    ->withToken(PageToken::next('13'));

$writer = new MyDataWriter(...);
$writer->write($arrayOfItems);

$processor = new MyDataProcessor(...);
$processor->process($arrayOfItems);