增加fav关联

app/Models/AgentProduct.php

@@ -15,6 +15,11 @@ class AgentProduct extends BaseModel
 
 	public function coupon()
 	{
-		return $this->hasMany(Coupon::class)->orWhereIn('agent_product_id', [0]);
+		return $this->hasMany(Coupon::class);
+	}
+
+	public function fav()
+	{
+		return $this->hasOne(UserFav::class);
 	}
 }