specific bits of additional info are
> >>> also ok.
> >>>
> >>> For example I have a Student model that has name and address
> >>> info. There is a ManyToMany relation to the Class(es) in which
> >>> that Student is enrolled. A "student" instance is valid if the
> >>> name and address fields are filled. A student is "complete" if
> >>> the student is valid and has signed up for one or more classes.
> >>>
> >>> So, my question is: where should the valid and complete methods
> >>> live? Should they be in the Student model or CBV? Someplace
> >>> else? Does it matter?
> >>
> >> I like to put that sort of stuff into model methods then add
> >> model.clean() to call them and raise whatever error may be
> >> appropriate if they fail.
> >>
> >>
> https://docs.djangoproject.com/en/2.1/topics/forms/modelforms/#interaction-with-model-validation
> >>
> >> and
> >>
> >>
> https://docs.djangoproject.com/en/2.1/ref/models/instances/#validating-objects
> >>
> >> and
> >>
> >>
> https://docs.djangoproject.com/en/2.1/ref/models/instances/#django.db.models.Model.clean
> >>
> >> You can raise your own errors which inherit from ValidationError
> >> to fine tune the process. For example, I differentiate between
> >> BusinessRuleViolation and InvalidToken and a couple of others
> >> where that delivers better control.
> >>
> >>
> >>>
> >>> Cheers
> >>> --
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> >>
> >>
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> >> <mailto:django-users@googlegroups.com>.
> >> Visit this group athttps://groups.google.com/group/django-users.
> >> To view this discussion on the web
> >> visithttps://
> groups.google.com/d/msgid/django-users/ajujeafh6d4qa4vvpfv2bxf9.1563085360028%40email.android.com
> >> <
> https://groups.google.com/d/msgid/django-users/ajujeafh6d4qa4vvpfv2bxf9.1563085360028%40email.android.com?utm_medium=email&utm_source=footer
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> >
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> >
> https://groups.google.com/d/msgid/django-users/A2531CD5-E89E-4EB3-84C5-CF6CEB05E53D%40hotmail.com
> > <
> https://groups.google.com/d/msgid/django-users/A2531CD5-E89E-4EB3-84C5-CF6CEB05E53D%40hotmail.com?utm_medium=email&utm_source=footer
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>
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> .
>
--
Cheers,
Matt Zand
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Work: 240-200-6131
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