feat: use the repository for example generation if available

sites.json

@@ -0,0 +1,10 @@
+{
+    "example": {
+        "domain": "johnsmith.com",
+        "name": "Johns site"
+    },
+    "foo": {
+        "domain": "foo.bar",
+        "name": "Foo Bar"
+    }
+}

src/ResourceContainer.php

@@ -4,6 +4,7 @@
 
 use LaravelJsonApi\Contracts\Schema\Schema;
 use LaravelJsonApi\Contracts\Server\Server;
+use LaravelJsonApi\Contracts\Store\QueriesAll;
 use LaravelJsonApi\Core\Resources\JsonApiResource;
 
 class ResourceContainer
@@ -33,7 +34,7 @@ public function resource($model): JsonApiResource
         $resource = $this->resources[$fqn]->first();
 
         if (!$resource) {
-            throw new \RuntimeException(sprintf('No resource found for model [%s], make sure your database is seeded!', $fqn));
+            throw new \RuntimeException(sprintfz('No resource found for model [%s], make sure your database is seeded!', $fqn));
         }
 
         return $resource;
@@ -77,6 +78,17 @@ protected function getFQN($model): string
      */
     protected function loadResources(string $model)
     {
+        $schema = $this->server->schemas()->schemaForModel($model);
+        $repository = $schema->repository();
+
+        if ($repository instanceof QueriesAll) {
+            $this->resources[$model] = $repository->queryAll()->get()->map(function ($model) {
+                return $this->server->resources()->create($model);
+            })->take(3);
+
+            return;
+        }
+
         if (method_exists($model, 'all')) {
             $resources = $model::all()->map(function ($model) {
                 return $this->server->resources()->create($model);

tests/Support/Entities/Site.php

@@ -5,7 +5,6 @@
 namespace LaravelJsonApi\OpenApiSpec\Tests\Support\Entities;
 
 use Illuminate\Contracts\Support\Arrayable;
-use Illuminate\Support\Collection;
 
 class Site implements Arrayable
 {
@@ -51,16 +50,6 @@ public function getName(): ?string
         return $this->name;
     }
 
-    public static function all(): Collection
-    {
-        return collect([
-            self::fromArray('example', [
-                'domain' => 'example.com',
-                'name' => 'Johns Site',
-            ]),
-        ]);
-    }
-
     public function setName(?string $name): Site
     {
         $this->name = $name;