1、关联查询指定字段代码简化；2、增加delete删除方法；

app/Http/Controllers/Api/UserFavController.php

@@ -15,9 +15,10 @@ class UserFavController extends Controller
 {
 	public function index()
 	{
-		$list = UserFav::query()->with([
-				'agentProduct' => fn($query) => $query->select('id', 'price', 'original_price'),
-				'product' => fn($query) => $query->select('id', 'title', 'pictures'),
+		$list = UserFav::query()
+			->with([
+				'agentProduct:id,price,original_price',
+				'product:id,title,pictures',
 			])
 			->where('user_id', $this->user_id)
 			->select('id', 'agent_product_id', 'product_id', 'created_at')
@@ -30,7 +31,7 @@ class UserFavController extends Controller
 	{
 		$id = (int)request()->input('id');
 
-		$agent_product = AgentProduct::where('user_id', $this->user_id)->find($id);
+		$agent_product = AgentProduct::find($id);
 		if (!$agent_product) {
 			return $this->error('产品不存在或已被删除');
 		}
@@ -44,4 +45,12 @@ class UserFavController extends Controller
 
 		return $this->success();
 	}
+
+	public function delete()
+	{
+		$id = (int)request()->input('id');
+
+		UserFav::where('user_id', $this->user_id)->find($id)->delete();
+		return $this->success();
+	}
 }