增加UserChannel Model

app/Models/UserChannel.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * 我的频道
+ * Class UserChannel
+ * @package App\Models
+ */
+class UserChannel extends Model
+{
+    use HasFactory;
+
+    public function getChannelsAttribute($value)
+    {
+        return json_decode($value, true);
+    }
+
+    public function setChannelsAttribute($value)
+    {
+        return json_encode($value);
+    }
+}