def edit(request, key):
layout = Layout.get(db.Key(key))
form = LayoutForm(request.form, obj=layout)
if request.method == "POST" and form.validate():
form.auto_populate(layout)
layout.put()
# clear depending caches
for node in layout.get_affected_nodes():
node.invalidate_cache()
if form.save.data is True:
return redirect(url_for('nut:layouts/list'), 301)
return render_template('app:layouts/form.html', form=form, layout=layout)
