def edit()

in bookshelf/main.py [0:0]

• 10 lines of code
• 3 McCabe index (conditional complexity)

def edit(book_id):
    book = firestore.read(book_id)

    if request.method == 'POST':
        data = request.form.to_dict(flat=True)

        # If an image was uploaded, update the data to point to the new image.
        image_url = upload_image_file(request.files.get('image'))

        if image_url:
            data['imageUrl'] = image_url

        book = firestore.update(data, book_id)

        return redirect(url_for('.view', book_id=book['id']))

    return render_template('form.html', action='Edit', book=book)