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;

src/resolvers/products-resolver.ts

@@ -7,6 +7,12 @@ const ProductBlacklist: IResolverObject = {
   },
 };
 
+const Product: IResolverObject = {
+  async categories({ id }, args, { dataSources }) {
+    return dataSources.productApi.getCategories(id);
+  },
+};
+
 async function getProducts(_, { limit, visible, browsable }, { dataSources }) {
   return dataSources.productApi.getProducts(limit, visible, browsable);
 }
@@ -17,6 +23,7 @@ async function getProduct(_, { id }, { dataSources }) {
 
 export const productTypeDefs = {
   ProductBlacklist,
+  Product,
 };
 
 export const productQueryTypeDefs = {

src/schema.ts

@@ -124,6 +124,7 @@ const typeDefs = gql`
     updated: DateTime
     printProducts: [PrintProduct]
     blacklisting: [ProductBlacklist]
+    categories: [Category]
   }
 
   enum ProductGroup {
@@ -157,42 +158,18 @@ const typeDefs = gql`
 
 export { typeDefs };
 /**
-
-
-type Category {
-  id: ID!
-  name: String
-}
-
-
 type Designer {
   id: ID!
   name: String
   orderRows(fromDate: Date, toDate: Date): [OrderRow]
 }
 
-type PrintProduct {
- insertedDate: DateTime!
-  updatedDate: DateTime
-}
-
 type Product {
-  categories: [Category]
   designer: Designer
-  insertedDate: DateTime!
-  updatedDate: DateTime
-}
-
-type ProductBlacklist {
-  market: Market
-  insertedDate: DateTime!
-  updatedDate: DateTime
 }
 
 type Query {
-  product(id: Int!): Product
   designer(id: Int!): Designer
   designers: [Designer]
 }
-
 */