remove scanBook function

app/repository/book_repo_impl.go

@@ -26,7 +26,11 @@ func (r *BookRepoImpl) Find(ctx context.Context, id int64) (book *Book, err erro
  return
  }
  if rows.Next() {
- book, err = scanBook(rows)
+ var book0 Book
+ if err = rows.Scan(&book0.ID, &book0.Title, &book0.Author, &book0.UpdatedAt, &book0.CreatedAt); err != nil {
+ return nil, err
+ }
+ book = &book0
  }
  return
 }
@@ -42,11 +46,11 @@ func (r *BookRepoImpl) List(ctx context.Context) (list []*Book, err error) {
  }
  list = make([]*Book, 0)
  for rows.Next() {
- var book *Book
- if book, err = scanBook(rows); err != nil {
- return
+ var book0 Book
+ if err = rows.Scan(&book0.ID, &book0.Title, &book0.Author, &book0.UpdatedAt, &book0.CreatedAt); err != nil {
+ return nil, err
  }
- list = append(list, book)
+ list = append(list, &book0)
  }
  return
 }
@@ -85,12 +89,3 @@ func (r *BookRepoImpl) Update(ctx context.Context, book Book) (err error) {
  _, err = builder.RunWith(r.DB).ExecContext(ctx)
  return
 }
-
-func scanBook(rows *sql.Rows) (*Book, error) {
- var book Book
- var err error
- if err = rows.Scan(&book.ID, &book.Title, &book.Author, &book.UpdatedAt, &book.CreatedAt); err != nil {
- return nil, err
- }
- return &book, nil
-}