Re: populating a field based on selection of foreign key

2011-04-10 Thread Aref
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  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 
>
> > 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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Re: populating a field based on selection of foreign key

2011-04-09 Thread Ernesto Guevara
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 

> 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.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-users@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

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populating a field based on selection of foreign key

2011-04-09 Thread Aref
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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populating a field based on selection of foreign key

2011-04-09 Thread Aref
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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