Re: basic Django 10,000 foot view of users (associating Django User with model class)

On 26/12/2015 12:53 AM, Mitchell McConnell wrote:
> I am just getting started in Django, and probably need to slow down, but
> I am trying to work through
> the documentation *and* work on a real app that I have created in the
> past as a Python desktop app
> using WxPython.
>
> The app manages widgets for employees, who belong to an Organization
> (part of my model). Â My assumption is that
> the Django web site will allow Django Users to log in, who must belong
> to an Organization.
>
> Then, that User will only see the widgets and employees that belong to
> their own Organization. Â Note that
> the Employees being managed (again, part of my model) are *NOT* going to
> need to be Django users on
> the website... only the Organizations widget administrator(s).
>
> I assume that I need toÂ
> 1. Extend the Django User class to include which Organization they
> belong to.
>
>
> But the example I have found so far shows adding a foreign key to the
> model table, e.g.
>
> https://docs.djangoproject.com/en/dev/topics/auth/customizing/#extending-the-existing-user-model
>
> Clearly, my Organization entity can have multiple Django users, and
> every Django user of my app
> must belong to one and only one of my Organizations.
>
> When I added the code from the link above to try and do #1 above, but
> without adding the example's
> one-to-one User field to the Organization, I get the error:

You probably don't want a one-to-one but rather a one-to-many. One org
to many users. So you don't really want a ForeignKey to auth.user

In your extended user model you just need a foreign key to Organization.
That user will then only be able to connect to a single organization.
Lots of other users will however be able to connect to the same
organization.

Mike

>
> ERRORS:
> <class 'certapp.admin.OrganizationInline'>: (admin.E202)
> 'certapp.Organization' has no ForeignKey to 'auth.User'.
>
>
>
> This seems like a pretty common way to organize a traditional app...
> what am I missing, or can
> someone point me to an example that does what I want?
>
> Thanks,
>
> Mitch
>
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