Hello Ernesto,
Thank you for taking the time to respond to my question. I tried your
suggestion and unfortunately it did not work. I need to fill in the
generation field of the board instance with the same generation as in
system. I would like this to happen automatically.
Again thanks for the response. Greatly appreciated. :)
On Apr 9, 9:36 pm, Ernesto Guevara <eguevara2...@gmail.com> wrote:
> Hello!
> I think you need something like this in your admin.py:
>
> class SystemAdmin(admin.ModelAdmin):
> list_display = ("generation", "system", "cog_E")
> ordering = ["-cog_E"]
> search_fields = ("system")
> list_filter = ("generation")
> list_per_page = 10
>
> admin.site.register(System, SystemAdmin)
>
> Try this. =)
>
> 2011/4/9 Aref <arefnamm...@gmail.com>
>
> > I am working on a database project and I am facing a little challenge.
> > Here it is.
>
> > I have three tables defined as below:
>
> > class Generation(models.Model):
> > generation = models.CharField(max_length = 25)
>
> > def __unicode__(self):
> > return self.generation
>
> > class CogE(models.Model):
> > first_name = models.CharField(max_length=30)
> > last_name = models.CharField(max_length=30)
> > office_phone = models.CharField(max_length=15, blank=True)
> > mobile_phone = models.CharField(max_length=15, blank=True)
> > email = models.EmailField(blank=True)
>
> > def __unicode__(self):
> > return u'%s %s' % (self.first_name, self.last_name)
>
> > class System(models.Model):
> > system = models.CharField(max_length=30)
> > cog_E = models.ForeignKey(CogE)
> > project = models.ForeignKey(Project)
> > generation = models.ForeignKey(Generation)
>
> > def __unicode__(self):
> > return self.system
>
> > class Board(models.Model):
> > board = models.CharField(max_length=30)
> > sch_number = models.CharField(max_length=20, blank = True)
> > PWA_number = models.CharField(max_length=20, blank = True)
> > PWB_number = models.CharField(max_length=20, blank = True)
> > system = models.ForeignKey(System)
> > cog_E = models.ForeignKey(CogE)
> > generation = models.ForeignKey(Generation)
>
> > In the admin view I would like to the board generation field to be
> > populated based on the system entry (since generation is also a field
> > in the system table). Is this possible to do in django? Is the schema
> > correct (I know this is not really a django issue)? Any help is
> > greatly appreciated.
>
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