Adding count and start to collection query params

see: pluf/lm#2

src/CollectionQuery.php

@@ -0,0 +1,24 @@
+<?php
+namespace Pluf\Core;
+
+use Pluf\Orm\Attribute\Entity;
+use Pluf\Orm\Attribute\Column;
+
+// TODO: maso, 2020: add following constraint
+// use Pluf\Orm\Attribute\IsPositive;
+// use Pluf\Orm\Attribute\Max;
+
+#[Entity]
+class CollectionQuery
+{
+
+    #[Column('start')]
+    public int $start = 0;
+
+    #[Column('count')]
+    public int $count = 500;
+
+    #[Column('query')]
+    public ?string $query = null;
+}
+

src/Process/Entity/ReadEntities.php

@@ -26,9 +26,9 @@ public function __construct(string $class, string $name = "entities")
      */
     public function __invoke(EntityQuery $entityQuery): array
     {
-        return $entityQuery->entity($this->class)
-            ->mode('select')
-            ->exec();
+        return $entityQuery->entity($this->class, '_e')
+            ->mapper('_e')
+            ->select();
     }
 
 }

src/Process/Http/RequestToEntityQuery.php

@@ -1,26 +1,40 @@
 <?php
 namespace Pluf\Core\Process\Http;
 
+use Pluf\Core\CollectionQuery;
 use Pluf\Orm\EntityManager;
+use Pluf\Orm\ObjectMapper;
 use Pluf\Scion\UnitTrackerInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
 /**
  * Creates an entity query based on http request
- * 
+ *
  * NOTE: the class must set.
- * 
- * @author maso
  *
+ * @author maso
+ *        
  */
 class RequestToEntityQuery
 {
-    public function __invoke(ServerRequestInterface $request, EntityManager $entityManager, UnitTrackerInterface $unitTracker)
+
+    public function __invoke(ServerRequestInterface $request, EntityManager $entityManager, ObjectMapper $objectMapperArray, UnitTrackerInterface $unitTracker)
     {
-        $entityQuery = $entityManager->createQuery();
-        //XXX: maso, 2021: read params from the request header.
+        $collectionQuery = $objectMapperArray->readValue($request->getQueryParams(), CollectionQuery::class);
+
+        // TODO: maso, 2021: validate the collection query
+
+        $query = $entityManager->query()
+            ->limit($collectionQuery->count, $collectionQuery->start);
+
+        // TODO: maso, 2021: suport collection query
+        // TODO: amso, 2021: suport collection query filter
+        // TODO: maso, 2021: suport collection query sort
+        // TODO: maso, 2021: suport collection query order
+
         return $unitTracker->next([
-            'entityQuery' => $entityQuery
+            'collectionQuery' => $collectionQuery,
+            'entityQuery' => $query
         ]);
     }
 }