Entity entity = Entity.newBuilder(key)         // Convert Book to an Entity
.set(Book.AUTHOR, book.getAuthor())
.set(Book.DESCRIPTION, book.getDescription())
.set(Book.PUBLISHED_DATE, book.getPublishedDate())
.set(Book.TITLE, book.getTitle())
<BUG>.set(Book.IMAGE_URL, book.getImageUrl())
.build();</BUG>
datastore.update(entity);                   // Update the Entity
}
@Override

Entity entity = Entity.newBuilder(key)         // Convert Book to an Entity
.set(Book.AUTHOR, book.getAuthor())
.set(Book.DESCRIPTION, book.getDescription())
.set(Book.PUBLISHED_DATE, book.getPublishedDate())
.set(Book.TITLE, book.getTitle())
.set(Book.IMAGE_URL, book.getImageUrl())
.set(Book.CREATED_BY, book.getCreatedBy())
.set(Book.CREATED_BY_ID, book.getCreatedById())
.build();
datastore.update(entity);                   // Update the Entity
}
@Override
