III-1957: Add labels parameter to offer search endpoint

src/OfferSearchController.php

@@ -2,6 +2,7 @@
 
 namespace CultuurNet\UDB3\Search\Http;
 
+use CultuurNet\UDB3\Label\ValueObjects\LabelName;
 use CultuurNet\UDB3\Search\Offer\OfferSearchParameters;
 use CultuurNet\UDB3\Search\Offer\OfferSearchServiceInterface;
 use CultuurNet\UDB3\Search\QueryStringFactoryInterface;
@@ -93,6 +94,19 @@ public function search(Request $request)
             );
         }
 
+        if (!empty($request->query->get('labels'))) {
+            $labels = (array) $request->query->get('labels');
+
+            $labelNames = array_map(
+                function ($label) {
+                    return new LabelName($label);
+                },
+                $labels
+            );
+
+            $parameters = $parameters->withLabels(...$labelNames);
+        }
+
         $resultSet = $this->searchService->search($parameters);
 
         $pagedCollection = $this->pagedCollectionFactory->fromPagedResultSet(

tests/OfferSearchControllerTest.php

@@ -2,6 +2,7 @@
 
 namespace CultuurNet\UDB3\Search\Http;
 
+use CultuurNet\UDB3\Label\ValueObjects\LabelName;
 use CultuurNet\UDB3\ReadModel\JsonDocument;
 use CultuurNet\UDB3\Search\Offer\OfferSearchParameters;
 use CultuurNet\UDB3\Search\Offer\OfferSearchServiceInterface;
@@ -66,6 +67,7 @@ public function it_returns_a_paged_collection_of_search_results_based_on_request
                 'limit' => 10,
                 'q' => 'dag van de fiets',
                 'regionId' => 'gem-leuven',
+                'labels' => ['foo', 'bar'],
             ]
         );
 
@@ -78,6 +80,10 @@ public function it_returns_a_paged_collection_of_search_results_based_on_request
                 $this->regionIndexName,
                 $this->regionDocumentType
             )
+            ->withLabels(
+                new LabelName('foo'),
+                new LabelName('bar')
+            )
             ->withStart(new Natural(30))
             ->withLimit(new Natural(10));
 
@@ -139,4 +145,32 @@ public function it_uses_the_default_limit_of_30_if_a_limit_of_0_is_given()
 
         $this->controller->search($request);
     }
+
+    /**
+     * @test
+     */
+    public function it_can_handle_a_single_string_value_as_query_parameter_for_labels()
+    {
+        $request = new Request(
+            [
+                'start' => 30,
+                'limit' => 10,
+                'labels' => 'foo',
+            ]
+        );
+
+        $expectedSearchParameters = (new OfferSearchParameters())
+            ->withStart(new Natural(30))
+            ->withLimit(new Natural(10))
+            ->withLabels(new LabelName('foo'));
+
+        $expectedResultSet = new PagedResultSet(new Natural(30), new Natural(0), []);
+
+        $this->searchService->expects($this->once())
+            ->method('search')
+            ->with($expectedSearchParameters)
+            ->willReturn($expectedResultSet);
+
+        $this->controller->search($request);
+    }
 }