feat: add HostedImage relation in Category table + data migration to HostedImage

api/functions/graphql/nexus-typegen.ts

@@ -122,7 +122,6 @@ export interface NexusGenObjects {
     workplan: string; // String!
   }
   Category: { // root type
-    cover_image?: string | null; // String
     icon?: string | null; // String
     id: number; // Int!
     title: string; // String!

api/functions/graphql/types/category.js

@@ -4,7 +4,8 @@ const {
     extendType,
     nonNull,
 } = require('nexus');
-const { prisma } = require('../../../prisma')
+const { prisma } = require('../../../prisma');
+const resolveImgObjectToUrl = require('../../../utils/resolveImageUrl');
 
 
 const Category = objectType({
@@ -12,7 +13,17 @@ const Category = objectType({
     definition(t) {
         t.nonNull.int('id');
         t.nonNull.string('title');
-        t.string('cover_image');
+        t.string('cover_image', {
+            async resolve(parent) {
+                const imgObject = await prisma.hostedImage.findUnique({
+                    where: {
+                        id: parent.cover_image_id
+                    }
+                });
+
+                return resolveImgObjectToUrl(imgObject);
+            }
+        });
         t.string('icon');
 
 

prisma/migrations/20220906090616_update_images_to_category_table/migration.sql

@@ -0,0 +1,5 @@
+-- AlterTable
+ALTER TABLE "Category" ADD COLUMN     "cover_image_id" INTEGER;
+
+-- AddForeignKey
+ALTER TABLE "Category" ADD CONSTRAINT "Category_cover_image_id_fkey" FOREIGN KEY ("cover_image_id") REFERENCES "HostedImage"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/schema.prisma

@@ -115,6 +115,8 @@ model Category {
   id              Int          @id @default(autoincrement())
   title           String
   cover_image     String?
+  cover_image_id  Int?
+  cover_image_rel HostedImage? @relation("CategoryCoverImage", fields: [cover_image_id], references: [id])
   icon            String?
 
   project Project[]
@@ -287,6 +289,7 @@ model HostedImage {
 
   ProjectThumbnail   Project[]  @relation("ProjectThumbnail")
   ProjectCoverImage  Project[]  @relation("ProjectCoverImage")
+  CategoryCoverImage Category[] @relation("CategoryCoverImage")
 }
 
 // -----------------

prisma/seed/index.js

@@ -118,6 +118,24 @@ async function migrateOldImages() {
             })
         }
     }
+
+    /**
+     * Category
+     **/
+    const categories = await prisma.category.findMany({
+        select: {
+            id: true,
+            cover_image: true,
+        }
+    })
+    for (const category of categories) {
+        if (category.cover_image) {
+            let hostedImageId = await _insertInHostedImage(category.cover_image)
+            await _updateObjectWithHostedImageId(prisma.category, category.id, {
+                cover_image_id: hostedImageId,
+            })
+        }
+    }
 }
 
 async function _insertInHostedImage(url){