Thanks Nathan. I think this solves one part of my problem. Also just
for reference, the method should be modified as so:
def company(self):
return self.sub_dept.dept.company
and so on. The exclusion of self, leads Django to look for a global
named "sub_dept".
Any idea how I can add company to 'list_filter'?
On Aug 2, 10:27 am, Nathan Ostgard <[EMAIL PROTECTED]> wrote:
> list_display can use functions as their value... so, you can have:
>
> class Employee(models.Model):
> sub_dept = ForeignKey(SubDept)
>
> def company(self):
> return sub_dept.dept.company
>
> def dept(self):
> return sub_dept.dept
>
> class Admin:
> list_display = ('first_name, 'last_name', 'company', 'dept',
> 'sub_dept')
>
> On Aug 1, 3:16 pm, Rohit <[EMAIL PROTECTED]> wrote:
>
> > Actually my question is two fold, most likely due to brain farts on my
> > end. I'm relatively a newbie to Django, so please bear with me.
>
> > Here's my scenario. I have this for my relationships:
> > Company->Dept->Sub-Dept->Employees->Roles
> > "->" represents a one-to-many relationship.
>
> > Problem #1:
>
> > If I do something like this:
> > Class Company(models.Model):
> > name...
>
> > Class Dept(models.Model):
> > company = ForeignKey(Company)
> > name...
>
> > Class Sub-Dept(models.Model):
> > dept = ForeignKey(Dept)
> > name...
>
> > Class Employee(models.Model):
> > sub-dept = ForeignKey(Sub-Dept)
> > first_name...
>
> > Class Admin:
> > list_display = ( 'first_name', 'last_name', 'sub-dept', )
>
> > The problem is when I go into the admin screen and view employees,
> > there is no way of displaying the company and dept. info next to the
> > name of the employee. How can I accomplish that?
>
> > Problem #2:
> > This kinda arises from my efforts trying to fix Problem #1.
>
> > I changed my code like so:
>
> > .....
> > .....
> > Class Employee(models.Model):
> > company = ForeignKey(Company)
> > dept = ForeignKey(Dept)
> > sub-dept = ForeignKey(Sub-Dept)
> > first_name...
>
> > Class Admin:
> > list_display = ( 'first_name', 'last_name', 'company', 'dept',
> > 'sub-dept', )
>
> > Now the problem is when I add an employee, I have to add some kind of
> > validation to the admin interface that checks whether the sub-dept,
> > dept and company match. My main issue is where can I add this
> > validation so that it is reflected in the admin interface?
>
> > Thanks in advance for the pointers.
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