增加UserFav Model

app/Models/UserFav.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class UserFav extends BaseModel
+{
+    use HasFactory;
+	protected $guarded = ['id', 'created_at', 'updated_at']; //不允许批量赋值的字段
+
+    public function agentProduct()
+	{
+		return $this->belongsTo(AgentProduct::class);
+	}
+
+    public function product()
+	{
+		return $this->belongsTo(Product::class);
+	}
+}