♻️ Refactoring (#1124)

Author: KATO-Hiro

prisma/seed.ts

@@ -177,9 +177,11 @@ async function addWorkBooks() {
           id: workbook.authorId,
         },
       });
+      // Allow undefined to match empty strings
+      const normalizedUrlSlug = workbook.urlSlug || undefined;
       const registeredWorkBook = await prisma.workBook.findMany({
         where: {
-          urlSlug: workbook.urlSlug,
+          urlSlug: normalizedUrlSlug,
         },
       });
 

prisma/workbooks.ts

@@ -1,4 +1,4 @@
-import { WorkBookType, type WorkBook, type WorkBookTasksBase } from '../src/lib/types/workbook';
+import { WorkBookType, type WorkBook } from '../src/lib/types/workbook';
 
 function createWorkBookBase(overrides: Partial<WorkBook> = {}): WorkBook {
   return {
@@ -11,16 +11,12 @@ function createWorkBookBase(overrides: Partial<WorkBook> = {}): WorkBook {
     isOfficial: false,
     isReplenished: false,
     workBookType: WorkBookType.CREATED_BY_USER,
-    urlSlug: '',
-    workBookTasks: createWorkBookTasks(),
+    urlSlug: '', // Only include urlSlug when it's explicitly provided
+    workBookTasks: [],
     ...overrides,
   };
 }
 
-function createWorkBookTasks(): WorkBookTasksBase {
-  return [{ taskId: 'abc322_d', priority: 1, comment: '' }];
-}
-
 export const workbooks = [
   createWorkBookBase({
     title: '標準入出力（1 個の整数）',