[增添]添加了datasource的setting数据库以及默认值

vendor/anourvalar/eloquent-serialize/tests/Models/Post.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace AnourValar\EloquentSerialize\Tests\Models;
+
+class Post extends \Illuminate\Database\Eloquent\Model
+{
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function tag()
+    {
+        return $this->morphOne(Tag::class, 'taggable');
+    }
+}