def buttons_line(self):
buttons = self.layout.get('buttons', self.form.get_buttons())
button_offset = self.layout.get('button_offset', self.label_width)
buf = Div(_class='form-group')
if button_offset:
with buf:
with buf.div(_class="col-sm-offset-%d col-sm-%d" % (button_offset, 12-button_offset)):
buf << buttons
else:
with buf:
buf << buttons
return str(buf)
