RE: value for choices arguments for newforms.MultipleSelectField

[Chris Brand]

Hi Peter,

> What should I pass as a dummy queryset parameter: this is positional
> mandatory argument and I cannot pass None. 

If you're going to replace it before you render the form, it really doesn't
matter - any queryset will do.

I used .objects.all(), but that has the disadvantage of actually
querying the database for a list that I then throw away when I change the
queryset.

I see that the trunk now has .none(), which is probably perfect for this
situation. If you're using 0.96, though, the ideal is probably some queryset
that you know will return no (or very few) objects.

Chris




--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

Re: value for choices arguments for newforms.MultipleSelectField

[Peter Melvyn]

On 8/7/07, Chris Brand <[EMAIL PROTECTED]> wrote:

>  self.fields[f].queryset = queryset
>  # Have to force the widget to update itself (bug 4787)
>  self.fields[f].widget.choices = self.fields[f].choices

Hi Chris,

thanks for your help - it solved my problem, but another one has arised:

What should I pass as a dummy queryset parameter: this is positional
mandatory argument and I cannot pass None. Is it correct if I pass

 queryset = _QuerySet()

Thanks, Peter

--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

RE: value for choices arguments for newforms.MultipleSelectField

[Chris Brand]

> def my_view(request):
> 
> class MyForm(forms.Form)
>  emails = forms.ModelMultipleChoiceField(queryset=
>   MyDBModel.objects.filter(user=request.user.id)
> 
> 
> But I'd like to have form declaration out of this view na pass user's
> ID as an argument - is there any way how to supply queryset in
> runtime? I tried to assign queryset later to form's instance having no
> success.

If ModelMultipleChoiceField behaves the same as ModelChoiceField, you'll
have to explicitly set the choices on the widget, too. Here's an extract
from my code :
 self.fields[f].queryset = queryset
 # Have to force the widget to update itself (bug 4787)
 self.fields[f].widget.choices = self.fields[f].choices

http://code.djangoproject.com/ticket/4787 doesn't mention
ModelMultipleChoiceField, so if you do need to do this, you should probably
update the ticket to say so.

Chris




--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

Re: value for choices arguments for newforms.MultipleSelectField

[Peter Melvyn]

On 2 Srp, 17:35, Nathan Ostgard <[EMAIL PROTECTED]> wrote:

> You can use ModelMultipleChoiceField for this:
>
> items =
> newforms.ModelMultipleChoiceField(queryset=Items.objects.all())

Hi Nathan,

I use it this way, but I need to reduce the queryset for current user
whom ID is contained in HTTP request. I'm a beginner, hence I
implemented it by nesting form's declaration into view function:

def my_view(request):

class MyForm(forms.Form)
 emails = forms.ModelMultipleChoiceField(queryset=
  MyDBModel.objects.filter(user=request.user.id)


But I'd like to have form declaration out of this view na pass user's
ID as an argument - is there any way how to supply queryset in
runtime? I tried to assign queryset later to form's instance having no
success.

Thanks, Peter


--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

Re: value for choices arguments for newforms.MultipleSelectField

[Kai Kuehne]

Hi,

On 8/3/07, james_027 <[EMAIL PROTECTED]> wrote:
> I don't see ModelMultipleChoiceField on the documentaion or the latest
> source code

You can look at
http://code.djangoproject.com/browser/django/trunk/tests/regressiontests/forms/tests.py

till the documenation is updated.

> Thanks
> james

Kai

--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

Re: value for choices arguments for newforms.MultipleSelectField

[james_027]

H

On Aug 2, 11:35 pm, Nathan Ostgard <[EMAIL PROTECTED]> wrote:
> You can use ModelMultipleChoiceField for this:
>
> items =
> newforms.ModelMultipleChoiceField(queryset=Items.objects.all())
>

I don't see ModelMultipleChoiceField on the documentaion or the latest
source code

Thanks
james


--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

Re: value for choices arguments for newforms.MultipleSelectField

[Nathan Ostgard]

You can use ModelMultipleChoiceField for this:

items =
newforms.ModelMultipleChoiceField(queryset=Items.objects.all())

On Aug 2, 1:24 am, james_027 <[EMAIL PROTECTED]> wrote:
> hi
>
> somewhere on the django documentation I saw the choice provided for
> MultipleSelectField is from a Database but I can't recall where I read
> it but I do it this way, let me know if there are better alternative
>
> items = newforms.MultipleChoiceField(choices = [('i.id', 'i.name') for
> i in Items.objects.all()])
>
> Thanks
> james


--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---

value for choices arguments for newforms.MultipleSelectField

[james_027]

hi

somewhere on the django documentation I saw the choice provided for
MultipleSelectField is from a Database but I can't recall where I read
it but I do it this way, let me know if there are better alternative

items = newforms.MultipleChoiceField(choices = [('i.id', 'i.name') for
i in Items.objects.all()])

Thanks
james


--~--~-~--~~~---~--~~
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 [EMAIL PROTECTED]
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en
-~--~~~~--~~--~--~---