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from __future__ import absolute_import, unicode_literals | ||
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from django.contrib import messages | ||
from django.utils.translation import ugettext_lazy as _ | ||
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class FormSuccessMessageMixin(object): | ||
""" | ||
Add a message when form validation succeeds (requires the message framework). | ||
Notice that this mixin will handle both single and multi-form views, | ||
like the ones provided by django-extra-views. | ||
""" | ||
success_message = _("All changes have been saved successfully.") | ||
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def get_success_message(self, form=None, inlines=None): | ||
return self.success_message | ||
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def form_valid(self, form): | ||
""" | ||
Add the success message to a single-form view. | ||
""" | ||
response = super(FormSuccessMessageMixin, self).form_valid(form) | ||
success_message = self.get_success_message(form) | ||
if success_message: | ||
messages.success(self.request, success_message, fail_silently=True) | ||
return response | ||
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def forms_valid(self, form, inlines): | ||
""" | ||
Add the success message to a form + inlines view. | ||
""" | ||
response = super(FormSuccessMessageMixin, self).forms_valid(form, inlines) | ||
success_message = self.get_success_message(form, inlines) | ||
if success_message: | ||
messages.success(self.request, success_message, fail_silently=True) | ||
return response | ||
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class FormErrorMessageMixin(object): | ||
""" | ||
Add a message when form validation fails (requires the message framework). | ||
Notice that this mixin will handle both single and multi-form views, | ||
like the ones provided by django-extra-views. | ||
""" | ||
error_message = _("Please correct the errors below.") | ||
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def get_error_message(self, form=None, inlines=None): | ||
return self.error_message | ||
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def form_invalid(self, form): | ||
""" | ||
Add the error message to a single-form view. | ||
""" | ||
response = super(FormErrorMessageMixin, self).form_invalid(form) | ||
error_message = self.get_error_message(form) | ||
if error_message: | ||
messages.error(self.request, error_message, fail_silently=True) | ||
return response | ||
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def forms_invalid(self, form, inlines): | ||
""" | ||
Add the error message to a form + inlines view. | ||
""" | ||
response = super(FormErrorMessageMixin, self).forms_invalid(form, inlines) | ||
error_message = self.get_error_message(form, inlines) | ||
if error_message: | ||
messages.error(self.request, error_message, fail_silently=True) | ||
return response | ||
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class FormMessagesMixin(FormSuccessMessageMixin, FormErrorMessageMixin): | ||
""" | ||
Add messages when form validation succeeds or fails. | ||
Notice that this mixin will handle both single and multi-form views, | ||
like the ones provided by django-extra-views. | ||
""" | ||
pass |