- fix appends

Author: athphane

Diff for: src/QueryBuilder.php

@@ -184,7 +184,8 @@ protected function getFieldAppends()
                 }
 
                 $fields = array_map([Str::class, 'snake'], $fields);
-                if ($tableName == $subjectTable) {
+
+                if ($tableName == $subjectTable || $tableName == '_') {
                     return $this->retrieveFieldsToAppends($fields);
                 }
 
@@ -238,6 +239,7 @@ protected function getAllAppends(): array
             $request_appends = $this->request->has('append') ? $this->request->appends()->toArray()
                 : ($this->allowedAppends ? $this->allowedAppends->all() : []);
 
+
             $fields = array_merge($request_appends, $this->getFieldAppends());
             $this->allAppends = collect($fields)->intersect($this->allowedAppends)->values()->all();
         }

Diff for: tests/Feature/ApiControllerTest.php

@@ -130,4 +130,24 @@ public function it_can_list_only_specific_api_model_fields(): void
                 'slug' => 'orange',
             ]);
     }
+
+    /** @test */
+    public function it_can_load_api_model_appends_from_fields_even_if_appends_is_blank(): void
+    {
+        $this->withoutExceptionHandling();
+
+        $product = Product::factory()->create([
+            'name' => 'Apple',
+            'slug' => 'orange',
+        ]);
+
+        $this->getJson('/products?fields=id,formatted_name&append=')
+            ->assertSuccessful()
+            ->assertJsonFragment([
+                'formatted_name' => 'Formatted Apple',
+            ])
+            ->assertJsonMissing([
+                'slug' => 'orange',
+            ]);
+    }
 }