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modules/Mall/Models/RefundItem.php

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+<?php
+
+namespace Modules\Mall\Models;
+
+use App\Models\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Modules\Mall\Models\Traits\BelongsToOrder;
+use Modules\Mall\Models\Traits\BelongsToRefund;
+
+class RefundItem extends Model
+{
+
+    use BelongsToOrder,
+        BelongsToRefund;
+
+    const UPDATED_AT = null;
+
+    protected $table = 'mall_refund_items';
+
+    public    $casts = [
+        'source' => 'json',
+    ];
+
+    /**
+     * Notes: 关联order_item
+     * @Author: 玄尘
+     * @Date  : 2021/5/19 9:50
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function order_item(): BelongsTo
+    {
+        return $this->belongsTo(OrderItem::class);
+    }
+
+}