127 lines
4.3 KiB
PHP
127 lines
4.3 KiB
PHP
<?php
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namespace App\Exports;
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use App\Models\ProductCategoryModel;
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use App\Models\ProductModel;
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use App\Models\SupplierModel;
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use Illuminate\Support\Collection;
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use Maatwebsite\Excel\Concerns\FromCollection;
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use Maatwebsite\Excel\Concerns\WithStrictNullComparison;
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use Maatwebsite\Excel\Concerns\WithStyles;
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use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
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/**
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* 商品档案导出：列格式与导入模板完全一致（首行即列头，导出文件修改后可直接重新导入）。
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* 分类列输出「父分类/子分类」完整路径；状态列输出中文。
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* template 模式仅输出列头 + 一行示例数据（首次导入前下载参考）。
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*/
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class ProductExport implements FromCollection, WithStrictNullComparison, WithStyles
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{
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/** 列头（与 ProductImport 的解析顺序一一对应，改动需同步） */
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public const array HEADERS = ['品名', '分类', '供应商', '规格/包规', '单位', '成本价', '排序', '库存', '保质期', '状态', '备注'];
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private ?Collection $rows = null;
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/**
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* @param int $categoryId 末级分类筛选（0=全部商品）
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* @param bool $template 仅输出列头 + 示例行（导入模板）
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*/
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public function __construct(
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private readonly int $categoryId = 0,
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private readonly bool $template = false,
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) {
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}
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/**
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* 行结构：第 1 行列头，其后每行一件商品
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*/
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public function collection(): Collection
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{
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if ($this->rows !== null) {
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return $this->rows;
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}
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$rows = [self::HEADERS];
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if ($this->template) {
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$rows[] = ['西红柿', '蔬菜/茄果类', '示例供应商', '10斤/箱', '斤', 2.5, 0, 100, 3, '上架', '示例行，导入前请删除'];
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return $this->rows = collect($rows);
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}
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$products = ProductModel::query()
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->when($this->categoryId > 0, fn ($query) => $query->where('category_id', $this->categoryId))
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->orderBy('sort')
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->orderBy('id')
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->get()
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->makeVisible('cost_price');
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$categoryPaths = $this->categoryPaths($products->pluck('category_id')->unique()->all());
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$supplierNames = SupplierModel::withTrashed()->pluck('name', 'id');
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foreach ($products as $product) {
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$rows[] = [
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$product->name,
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$categoryPaths[(int) $product->category_id] ?? '',
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$supplierNames[(int) $product->supplier_id] ?? '',
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$product->spec,
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$product->unit,
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(float) $product->cost_price,
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(int) $product->sort,
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(int) $product->stock,
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(int) $product->shelf_life,
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(int) $product->status === ProductModel::STATUS_ON ? '上架' : '下架',
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$product->remark,
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];
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}
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return $this->rows = collect($rows);
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}
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/**
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* 列头加粗、冻结首行、设置列宽
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*/
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public function styles(Worksheet $sheet): array
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{
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$this->collection();
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$sheet->freezePane('A2');
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$widths = [20, 16, 14, 14, 8, 10, 8, 8, 8, 8, 24];
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foreach ($widths as $index => $width) {
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$sheet->getColumnDimension(Coordinate::stringFromColumnIndex($index + 1))->setWidth($width);
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}
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return [
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1 => ['font' => ['bold' => true]],
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];
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}
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/**
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* 分类ID => 「父分类/子分类」完整路径（沿 parent_id 上溯拼接）
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*
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* @param array<int, int> $categoryIds
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* @return array<int, string>
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*/
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private function categoryPaths(array $categoryIds): array
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{
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$categories = ProductCategoryModel::all()->keyBy('id');
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$paths = [];
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foreach ($categoryIds as $categoryId) {
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$names = [];
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$cursor = (int) $categoryId;
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$guard = 0;
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while ($cursor > 0 && $guard++ < 20) {
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$category = $categories->get($cursor);
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if ($category === null) {
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break;
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}
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array_unshift($names, $category->name);
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$cursor = (int) $category->parent_id;
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}
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$paths[(int) $categoryId] = implode('/', $names);
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}
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return $paths;
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}
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}
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