feat: add category filter to product index page

app/Http/Controllers/Admin/Master/ProductController.php

@@ -29,13 +29,16 @@ public function index(Request $request): Response
     {
         $tableQuery = $this->parseDataTableQuery($request);
         $isActive = $request->string('is_active')->toString();
+        $categoryId = $request->string('category_id')->toString();
 
         return Inertia::render('admin/master/products/Index', [
-            'products' => $this->productService->paginateForIndex($tableQuery, $isActive),
+            'products' => $this->productService->paginateForIndex($tableQuery, $isActive, $categoryId),
             'outOfStockGroups' => $this->productService->outOfStockGroups(),
             'stockWarningGroups' => $this->productService->stockWarningGroups(),
+            'categories' => $this->productService->categoryOptions(),
             'filters' => $this->dataTableFilters($tableQuery, [
                 'is_active' => $isActive,
+                'category_id' => $categoryId,
             ]),
         ]);
     }

app/Services/Master/ProductService.php

@@ -113,7 +113,7 @@ private function inventoryAlertGroups(callable $filter): array
     /**
      * @param  array{search: string, sort: string, direction: 'asc'|'desc'}  $tableQuery
      */
-    public function paginateForIndex(array $tableQuery, string $isActive): LengthAwarePaginator
+    public function paginateForIndex(array $tableQuery, string $isActive, string $categoryId = ''): LengthAwarePaginator
     {
         $query = Product::query()
             ->with([
@@ -135,6 +135,10 @@ public function paginateForIndex(array $tableQuery, string $isActive): LengthAwa
             ->when(
                 $isActive !== '',
                 fn (Builder $query) => $query->where('is_active', $isActive === '1')
+            )
+            ->when(
+                $categoryId !== '',
+                fn (Builder $query) => $query->whereHas('categories', fn (Builder $query) => $query->where('categories.id', $categoryId))
             );
 
         $this->applySorting($query, $tableQuery['sort'], $tableQuery['direction']);

resources/js/pages/admin/master/products/Index.vue

@@ -14,6 +14,7 @@ import {
 import AdminLayout from '@/layouts/AdminLayout.vue';
 import type { DataTableFilterDef } from '@/types/data-table';
 import type {
+    CategoryOption,
     PaginatedProducts,
     ProductOutOfStockGroup,
     ProductStockWarningGroup,
@@ -23,11 +24,13 @@ const props = defineProps<{
     products: PaginatedProducts;
     outOfStockGroups: ProductOutOfStockGroup[];
     stockWarningGroups: ProductStockWarningGroup[];
+    categories: CategoryOption[];
     filters: {
         search: string;
         sort?: string;
         direction?: 'asc' | 'desc';
         is_active?: string;
+        category_id?: string;
     };
 }>();
 
@@ -38,12 +41,18 @@ const { query, setSearch, setFilter, resetFilters, syncFromServer } =
     useDataTableQuery({
         url: '/admin/master/products',
         initial: { ...props.filters },
-        filterKeys: ['is_active'],
+        filterKeys: ['is_active', 'category_id'],
     });
 
 useDataTableQuerySync(() => props.filters, syncFromServer);
 
 const filterDefs = computed<DataTableFilterDef[]>(() => [
+    {
+        key: 'category_id',
+        label: 'Kategori',
+        type: 'select',
+        options: props.categories.map((c) => ({ value: String(c.value), label: c.label })),
+    },
     {
         key: 'is_active',
         label: 'Status',
@@ -56,6 +65,7 @@ const filterDefs = computed<DataTableFilterDef[]>(() => [
 ]);
 
 const filterValues = computed(() => ({
+    category_id: query.value.category_id ?? '',
     is_active: query.value.is_active ?? '',
 }));