Adding css class to field on validation error in django
Expanding upon errx's answer.
Add the CSS
.error input, .error select {
border: 2px red solid;
}
to specifically highlight the field
What about defining error_css_class? http://docs.djangoproject.com/en/dev/ref/forms/api/#styling-required-or-erroneous-form-rows?
class MyForm(ModelForm):
error_css_class = 'error'
To answer the original question.
You can add the desired class to the field in the view to where you are submitting your form and doing your form.is_valid()
check. Not the prettiest but it will work.
def submit_form(request):
if request.method = 'POST':
if. form.is_valid():
# Do something with clean form data
pass
else:
# Append css class to every field that contains errors.
for field in form.errors:
form[field].field.widget.attrs['class'] += ' my-css-class'
return render(request, submit_form.html, {
'form': form
})