first version

app/Http/Requests/Product/ProductFormRequest.php

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+<?php
+
+namespace App\Http\Requests\Product;
+
+use Modules\Common\Http\Requests\BaseFormRequest;
+
+/**
+ * 商品档案 创建/编辑 验证（含多等级价格 prices 数组）
+ */
+class ProductFormRequest extends BaseFormRequest
+{
+    protected $stopOnFirstFailure = true;
+
+    public function rules(): array
+    {
+        return [
+            'name' => 'required|string|max:100',
+            'spec' => 'nullable|string|max:100',
+            'grade' => 'nullable|string|max:50',
+            'unit' => 'nullable|string|max:20',
+            'category_id' => 'required|integer|exists:product_category,id',
+            'supplier_id' => 'nullable|integer|exclude_if:supplier_id,0|exists:supplier,id',
+            'image' => 'nullable|string|max:255',
+            'sort' => 'nullable|integer',
+            'status' => 'nullable|integer|in:0,1',
+            'remark' => 'nullable|string|max:255',
+            'prices' => 'nullable|array',
+            'prices.*.level_id' => 'required|integer|exists:customer_level,id',
+            'prices.*.price' => 'required|numeric|min:0',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'name.required' => '商品名称不能为空',
+            'name.max' => '商品名称最长 100 个字符',
+            'category_id.required' => '请选择商品分类',
+            'category_id.exists' => '商品分类不存在',
+            'supplier_id.exists' => '供应商不存在',
+            'status.in' => '状态值不正确',
+            'prices.*.level_id.required' => '价格行缺少客户等级',
+            'prices.*.level_id.exists' => '客户等级不存在',
+            'prices.*.price.required' => '价格行缺少单价',
+            'prices.*.price.numeric' => '单价必须为数字',
+            'prices.*.price.min' => '单价不能小于 0',
+        ];
+    }
+}