Web service voor het LED-display
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# -*- coding: utf-8 -*-
'''Helper utilities and decorators.'''
from flask import flash
def flash_errors(form, category="warning"):
'''Flash all errors for a form.'''
for field, errors in form.errors.items():
for error in errors:
flash("{0} - {1}"
.format(getattr(form, field).label.text, error), category)