Array source (#134)

docs/src/docs/usage.md

@@ -131,3 +131,76 @@ Now, in the template, render the data table using the `data_table` function:
 ```
 
 By default, the data table will look somewhat _ugly_, because we haven't configured the theme yet - see [theming](features/theming.md) documentation section.
+
+## Using array as data source
+
+:::warning In most cases, using array as data source is used only for fast prototyping!
+Remember that paginating an array is not memory efficient, as every item is already loaded into memory.
+If your data comes from a database, pass an instance of Doctrine ORM query builder instead.
+:::
+
+In some cases, you might want to use an array as a data source. This can be achieved by simply passing an array as data to the data table factory method:
+
+```php
+use App\Entity\Product;
+use App\DataTable\Type\ProductDataTableType;
+use Kreyu\Bundle\DataTableBundle\DataTableFactoryAwareTrait;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+
+class ProductController extends AbstractController
+{
+    use DataTableFactoryAwareTrait;
+
+    public function index()
+    {
+        $products = [
+            new Product(id: 1, name: 'Product 1'),
+            new Product(id: 2, name: 'Product 2'),
+            new Product(id: 3, name: 'Product 3'),
+        ];
+
+        $dataTable = $this->createDataTable(ProductDataTableType::class, $products);
+    }
+}
+```
+
+Alternatively, you can manually create an instance of `ArrayProxyQuery` to provide total item count different from given array count.
+This can be useful in cases where you're already retrieving paginated data and still want the data table to properly display the pagination controls:
+
+```php
+use App\Entity\Product;
+use App\DataTable\Type\ProductDataTableType;
+use Kreyu\Bundle\DataTableBundle\DataTableFactoryAwareTrait;
+use Kreyu\Bundle\DataTableBundle\Pagination\PaginationData;
+use Kreyu\Bundle\DataTableBundle\Query\ArrayProxyQuery;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+
+class ProductController extends AbstractController
+{
+    use DataTableFactoryAwareTrait;
+
+    public function index()
+    {
+        $products = new ArrayProxyQuery(
+            data: [
+                new Product(id: 1, name: 'Product 1'),
+                new Product(id: 2, name: 'Product 2'),
+                new Product(id: 3, name: 'Product 3'),
+            ], 
+            totalItemCount: 25,
+        );  
+
+        $dataTable = $this->createDataTable(ProductDataTableType::class, $products);
+
+        // For example, in this case, paginating with 3 items per page will result in 9 pages,
+        // because the proxy query now assumes there's 25 items in total, and the data array
+        // only represents results of a currently displayed page.
+        $dataTable->paginate(new PaginationData(page: 1, perPage: 3));
+    }
+}
+```
+
+Sorting will perform `usort` on the given array, while paginating will simply slice the array.
+However, **there are no built-in filters** for this proxy query, but you can implement 
+your own filter types - see [creating filter types](components/filters#creating-filter-types).
+

src/Query/ArrayProxyQuery.php

@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kreyu\Bundle\DataTableBundle\Query;
+
+use Kreyu\Bundle\DataTableBundle\Pagination\PaginationData;
+use Kreyu\Bundle\DataTableBundle\Sorting\SortingData;
+use Symfony\Component\PropertyAccess\PropertyAccess;
+
+class ArrayProxyQuery implements ProxyQueryInterface
+{
+    private ?array $originalData = null;
+    private ?array $sortedData = null;
+
+    public function __construct(
+        private array $data,
+        private ?int $totalItemCount = null,
+    ) {
+        $this->originalData = $this->data;
+        $this->sortedData = $this->data;
+        $this->totalItemCount ??= count($this->data);
+    }
+
+    public function sort(SortingData $sortingData): void
+    {
+        $propertyAccessor = PropertyAccess::createPropertyAccessor();
+
+        $this->originalData ??= $this->data;
+
+        $this->data = $this->originalData;
+
+        usort($this->data, function ($a, $b) use ($sortingData, $propertyAccessor) {
+            foreach ($sortingData->getColumns() as $sortingColumnData) {
+                $propertyPath = $sortingColumnData->getPropertyPath();
+                $direction = $sortingColumnData->getDirection();
+
+                $valueA = $propertyAccessor->getValue($a, $propertyPath);
+                $valueB = $propertyAccessor->getValue($b, $propertyPath);
+
+                if ($valueA < $valueB) {
+                    return 'asc' === $direction ? -1 : 1;
+                } elseif ($valueA > $valueB) {
+                    return 'asc' === $direction ? 1 : -1;
+                }
+            }
+
+            return 0;
+        });
+
+        $this->sortedData = $this->data;
+    }
+
+    public function paginate(PaginationData $paginationData): void
+    {
+        $this->data = array_slice(
+            $this->sortedData ?? $this->originalData,
+            $paginationData->getOffset(),
+            $paginationData->getPerPage(),
+        );
+    }
+
+    public function getResult(): ResultSetInterface
+    {
+        return new ResultSet(
+            iterator: new \ArrayIterator($this->data),
+            currentPageItemCount: count($this->data),
+            totalItemCount: $this->totalItemCount,
+        );
+    }
+}

src/Query/ArrayProxyQueryFactory.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kreyu\Bundle\DataTableBundle\Query;
+
+class ArrayProxyQueryFactory implements ProxyQueryFactoryInterface
+{
+    public function create(mixed $data): ProxyQueryInterface
+    {
+        return new ArrayProxyQuery($data);
+    }
+
+    public function supports(mixed $data): bool
+    {
+        return is_array($data);
+    }
+}

src/Resources/config/core.php

@@ -12,6 +12,7 @@
 use Kreyu\Bundle\DataTableBundle\Persistence\PersistenceClearerInterface;
 use Kreyu\Bundle\DataTableBundle\Persistence\StaticPersistenceSubjectProvider;
 use Kreyu\Bundle\DataTableBundle\Persistence\TokenStoragePersistenceSubjectProvider;
+use Kreyu\Bundle\DataTableBundle\Query\ArrayProxyQueryFactory;
 use Kreyu\Bundle\DataTableBundle\Request\HttpFoundationRequestHandler;
 use Kreyu\Bundle\DataTableBundle\Type\DataTableType;
 use Kreyu\Bundle\DataTableBundle\Type\ResolvedDataTableTypeFactory;
@@ -68,6 +69,11 @@
         ->set('kreyu_data_table.request_handler.http_foundation', HttpFoundationRequestHandler::class)
     ;
 
+    $services
+        ->set('kreyu_data_table.proxy_query.factory.array', ArrayProxyQueryFactory::class)
+        ->tag('kreyu_data_table.proxy_query.factory')
+    ;
+
     $services
         ->set('kreyu_data_table.proxy_query.factory.doctrine_orm', DoctrineOrmProxyQueryFactory::class)
         ->tag('kreyu_data_table.proxy_query.factory')

tests/Unit/Query/ArrayProxyQueryFactoryTest.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kreyu\Bundle\DataTableBundle\Tests\Unit\Query;
+
+use Kreyu\Bundle\DataTableBundle\Query\ArrayProxyQuery;
+use Kreyu\Bundle\DataTableBundle\Query\ArrayProxyQueryFactory;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+class ArrayProxyQueryFactoryTest extends TestCase
+{
+    private ArrayProxyQueryFactory $factory;
+
+    protected function setUp(): void
+    {
+        $this->factory = new ArrayProxyQueryFactory();
+    }
+
+    public function testCreate()
+    {
+        $this->assertInstanceOf(ArrayProxyQuery::class, $this->factory->create([]));
+    }
+
+    #[DataProvider('provideSupportsCases')]
+    public function testSupports(mixed $data, bool $expected)
+    {
+        $this->assertEquals($expected, $this->factory->supports($data));
+    }
+
+    public static function provideSupportsCases(): iterable
+    {
+        yield 'array' => [[], true];
+        yield 'string' => ['', false];
+        yield 'integer' => [123, false];
+        yield 'bool' => [true, false];
+        yield 'null' => [null, false];
+        yield 'object' => [new \stdClass(), false];
+    }
+}

tests/Unit/Query/ArrayProxyQueryTest.php

@@ -0,0 +1,103 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kreyu\Bundle\DataTableBundle\Tests\Unit\Query;
+
+use Kreyu\Bundle\DataTableBundle\Pagination\PaginationData;
+use Kreyu\Bundle\DataTableBundle\Query\ArrayProxyQuery;
+use Kreyu\Bundle\DataTableBundle\Sorting\SortingColumnData;
+use Kreyu\Bundle\DataTableBundle\Sorting\SortingData;
+use PHPUnit\Framework\TestCase;
+
+class ArrayProxyQueryTest extends TestCase
+{
+    public function testGetResult()
+    {
+        $query = new ArrayProxyQuery(
+            data: [['foo' => 'bar'], ['bar' => 'baz']],
+        );
+
+        $result = $query->getResult();
+
+        $this->assertEquals(
+            [['foo' => 'bar'], ['bar' => 'baz']],
+            iterator_to_array($result->getIterator()),
+        );
+
+        $this->assertEquals(2, $result->count());
+        $this->assertEquals(2, $result->getTotalItemCount());
+        $this->assertEquals(2, $result->getCurrentPageItemCount());
+    }
+
+    public function testGetResultWithTotalItemCountSet()
+    {
+        $query = new ArrayProxyQuery(
+            data: [['foo' => 'bar'], ['bar' => 'baz']],
+            totalItemCount: 25,
+        );
+
+        $result = $query->getResult();
+
+        $this->assertEquals(
+            [['foo' => 'bar'], ['bar' => 'baz']],
+            iterator_to_array($result->getIterator()),
+        );
+
+        $this->assertEquals(2, $result->count());
+        $this->assertEquals(25, $result->getTotalItemCount());
+        $this->assertEquals(2, $result->getCurrentPageItemCount());
+    }
+
+    public function testSort()
+    {
+        $query = new ArrayProxyQuery(
+            data: [['id' => 1], ['id' => 2], ['id' => 3]],
+        );
+
+        $query->sort(new SortingData([
+            new SortingColumnData('id', 'desc', '[id]'),
+        ]));
+
+        $result = $query->getResult();
+
+        $this->assertEquals(
+            [['id' => 3], ['id' => 2], ['id' => 1]],
+            iterator_to_array($result->getIterator()),
+        );
+    }
+
+    public function testPaginate()
+    {
+        $query = new ArrayProxyQuery(
+            data: [['id' => 1], ['id' => 2], ['id' => 3]],
+        );
+
+        $query->paginate(new PaginationData(page: 2, perPage: 1));
+
+        $result = $query->getResult();
+
+        $this->assertEquals([['id' => 2]], iterator_to_array($result->getIterator()));
+        $this->assertEquals(1, $result->getCurrentPageItemCount());
+        $this->assertEquals(3, $result->getTotalItemCount());
+    }
+
+    public function testSortAndPaginate()
+    {
+        $query = new ArrayProxyQuery(
+            data: [['id' => 1], ['id' => 2], ['id' => 3]],
+        );
+
+        $query->sort(new SortingData([
+            new SortingColumnData('id', 'desc', '[id]'),
+        ]));
+
+        $query->paginate(new PaginationData(page: 3, perPage: 1));
+
+        $result = $query->getResult();
+
+        $this->assertEquals([['id' => 1]], iterator_to_array($result->getIterator()));
+        $this->assertEquals(1, $result->getCurrentPageItemCount());
+        $this->assertEquals(3, $result->getTotalItemCount());
+    }
+}