IntegrityError is at the database level (not the OS).  Shouldn't have
anything to do with the OS specifically.  Has the database you are using
changed?

On Wed, 2014-07-16 at 13:53 -0700, Pepsodent Cola wrote:
> Hi,
> I have been learning and developing my first Django project in Linux
> Mint 14 for about 2 years.  This month I moved my Django project files
> to Linux Mint 17.
> When I run my unit tests then I get this error, which I don't remember
> having when I was testing code in Linux Mint 14.
> 
> IntegrityError: NOT NULL constraint failed:
> userprofile_userprofile.likes_cheese
> 
> 
> NOT NULL constraint failed
> I try to change the old code from this.
> 
> class UserProfile(models.Model):
>     user = models.OneToOneField(User)
>     likes_cheese = models.BooleanField()
>     favourite_hamster_name = models.CharField(max_length=50)
> 
> To this.
> 
> class UserProfile(models.Model):
>     user = models.OneToOneField(User)
>     likes_cheese = models.NullBooleanField()
>     favourite_hamster_name = models.CharField(max_length=50)
> 
> But then all kinds of different stuff in the project breaks.  Which
> makes me suspect that nothing was wrong with my code to begin with,
> that perhaps the change of operating system has caused this error.
> 
> Did Ubuntu 14.04 or Linux Mint 17 break your Django project files
> also?
> 
> 
> 
> admin.TabularInline
> Also I think Linux Mint 17 broke admin.py's TabularInline function
> because now the fields looks stacked instead.  I'm not sure if this
> has anything to do with my operating system switch.  Or if it's
> because of my recent experimentations with overriding certain parts of
> the admin template.
> 
> class UserProfileInline(admin.TabularInline):
>     model = UserProfile
>     extra = 1
> 
> Did Ubuntu 14.04 or Linux Mint 17 break your Django admin?
> 
> 
> 
> 
> 
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-- 
Adam (a...@csh.rit.edu)

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