141 lines
4.3 KiB
PHP
141 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\PurchaseOrderModel;
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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\WithHeadings;
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use Maatwebsite\Excel\Concerns\WithMapping;
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use Maatwebsite\Excel\Concerns\WithStyles;
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
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/**
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* 采购单导出（C2 全品类按分类 sort 排序 / C3 仅蔬果分类）
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*/
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class PurchaseOrderExport implements FromCollection, WithHeadings, WithMapping, WithStyles
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{
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/** @var array<int, string> 商品ID => 顶级分类名 */
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private array $categoryNames = [];
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/** @var array<int, string> 供应商ID => 名称 */
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private array $supplierNames = [];
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private ?Collection $items = null;
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/**
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* @param PurchaseOrderModel $purchase 采购单
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* @param string $type all 全品类 / category 仅蔬果分类
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*/
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public function __construct(
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private readonly PurchaseOrderModel $purchase,
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private readonly string $type = 'all',
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) {
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}
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/**
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* 导出行（按 sort 排序；蔬果分类时按顶级分类名过滤）
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*/
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public function collection(): Collection
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{
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if ($this->items !== null) {
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return $this->items;
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}
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$items = $this->purchase->items()->orderBy('sort')->get();
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$this->loadLookups($items);
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if ($this->type === 'category') {
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$items = $items->filter(function ($item): bool {
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$rootName = $this->categoryNames[(int) $item->product_id] ?? '';
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return str_contains($rootName, '蔬菜') || str_contains($rootName, '水果');
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})->values();
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}
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return $this->items = $items;
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}
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public function headings(): array
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{
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return ['序号', '分类', '品名', '规格/包规', '单价', '数量', '实际称重', '金额', '供应商', '备注'];
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}
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public function map($item): array
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{
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return [
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$item->sort,
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$this->categoryNames[(int) $item->product_id] ?? '',
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$item->product_name,
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$item->product_spec,
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(float) $item->price,
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(float) $item->quantity,
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(float) $item->weight,
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(float) $item->amount,
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$this->supplierNames[(int) $item->supplier_id] ?? '',
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$item->remark,
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];
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}
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/**
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* 表头加粗 + 冻结首行
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*/
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public function styles(Worksheet $sheet): array
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{
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$sheet->freezePane('A2');
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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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* PDF 模板视图数据
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*
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* @return array{purchase: PurchaseOrderModel, items: Collection, categoryNames: array<int, string>, supplierNames: array<int, string>}
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*/
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public function viewData(): array
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{
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return [
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'purchase' => $this->purchase,
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'items' => $this->collection(),
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'categoryNames' => $this->categoryNames,
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'supplierNames' => $this->supplierNames,
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];
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}
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/**
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* 预加载供应商名与商品顶级分类名（商品/供应商均含软删除，保证历史单据可导出）
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*/
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private function loadLookups(Collection $items): void
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{
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$this->supplierNames = SupplierModel::withTrashed()
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->whereIn('id', $items->pluck('supplier_id')->unique())
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->pluck('name', 'id')
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->toArray();
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$productCategoryIds = ProductModel::withTrashed()
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->whereIn('id', $items->pluck('product_id')->unique())
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->pluck('category_id', 'id');
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$categories = ProductCategoryModel::all()->keyBy('id');
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$this->categoryNames = [];
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foreach ($productCategoryIds as $productId => $categoryId) {
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$rootName = '';
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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 ($category === null) {
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break;
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}
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$rootName = $category->name;
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$cursor = (int) $category->parent_id;
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}
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$this->categoryNames[(int) $productId] = $rootName;
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}
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}
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}
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