Added categories to products

src/datasources/product-api.ts

@@ -5,6 +5,7 @@ import {
   ProductGroup,
   PrintProduct,
   ProductBlacklist,
+  Category,
 } from './product-types';
 import { Maybe } from './types';
 
@@ -15,6 +16,24 @@ export class ProductAPI extends SQLDataSource {
     super(config);
   }
 
+  async getCategories(productId: number): Promise<Array<Category>> {
+    const query = /* sql */ `
+      SELECT product_category.category_id, categories.name
+      FROM product_category JOIN categories ON product_category.category_id = categories.id
+      WHERE product_category.product_id = ?
+      `;
+
+    const res = await this.knex.raw(query, productId).then((data) =>
+      data.rows.map((o) => {
+        return {
+          ...o,
+          id: o.category_id,
+        };
+      }),
+    );
+    return res;
+  }
+
   getBlacklisting(row: any): Array<ProductBlacklist> {
     if (!row.blacklisting) {
       return [];

src/datasources/product-types.ts

@@ -8,6 +8,10 @@ export enum ProductGroup {
   FRAMED_PRINT = 8,
 }
 
+export interface Category {
+  id: number;
+  name: string;
+}
 export interface ProductBlacklist {
   id: number;
   groupId: number;