Re: Setting default values in a form from DB table
Thank a lot Andre, this is my first project in Django so kind of confused at
many parts. The links will help me to fix my issue.
Thanks and Regards,
Swaroop Shankar V
On Mon, Oct 24, 2011 at 6:03 PM, Andre Terra wrote:
> You should always populate your form in forms.py. This is done using the
> 'initial' kwarg and is thoroughly explained in the docs! [1]
>
> Borrowing from the tutorial's Poll model [2]:
>
> Class PollsForm(forms.Form):
> def __init__ (self, *args, **kwargs):
> self.instance = kwargs.pop('instance', None)
>
> if self.instance.pk is not None:
> kwargs['initial'] = kwargs.get('initial', {})
> kwargs['initial'] = {'question': self.instance.question}
>
> super(PollsForm, self).__init__(*args, **kwargs)
>
> This way, you can edit a Poll object by calling
> PollsForm(instance=some_poll_object), and it will automatically populate
> 'question' with the instance's
> question attribute.
>
>
> Cheers,
> AT
>
> [1]
> https://docs.djangoproject.com/en/dev/ref/forms/api/#dynamic-initial-values
> [2]
> https://docs.djangoproject.com/en/dev/intro/tutorial01/#creating-models
>
>
>
>
> On Sun, Oct 23, 2011 at 4:08 PM, Swaroop Shankar V wrote:
>
>> Hello All,
>>
>> I am trying to create a Edit form to edit user information. I would like
>> to display the default values in the form fields rendered and am getting the
>> values from the db table. I can take an approach by creating a dictionary
>> with the values that needs to be populated in the form fields in my view
>> file and then pass it to the html. Then in the html, i can manually set the
>> values using the django-widget_tweaks. But the problem here is that there
>> are few select box for which this approach wont work. So the next option is
>> to do it from the forms.py but there i need to get the currently logged in
>> user and since request object is not available i created an __init__
>> function with the following statements
>>
>> def __init__(self, *args, **kwargs):
>> self.request = kwargs.pop('request', None)
>> super(UserEditForm, self).__init__(*args, **kwargs)
>>
>> but now i am not sure on how to set up the form values. My form's class
>> code can be accessed via the url http://pastebin.com/1TuRmNhH . Please
>> help.
>>
>> Thanks and Regards,
>> Swaroop Shankar V
>>
>> --
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>>
>
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Re: Setting default values in a form from DB table
You should always populate your form in forms.py. This is done using the
'initial' kwarg and is thoroughly explained in the docs! [1]
Borrowing from the tutorial's Poll model [2]:
Class PollsForm(forms.Form):
def __init__ (self, *args, **kwargs):
self.instance = kwargs.pop('instance', None)
if self.instance.pk is not None:
kwargs['initial'] = kwargs.get('initial', {})
kwargs['initial'] = {'question': self.instance.question}
super(PollsForm, self).__init__(*args, **kwargs)
This way, you can edit a Poll object by calling
PollsForm(instance=some_poll_object),
and it will automatically populate 'question' with the instance's
question attribute.
Cheers,
AT
[1]
https://docs.djangoproject.com/en/dev/ref/forms/api/#dynamic-initial-values
[2] https://docs.djangoproject.com/en/dev/intro/tutorial01/#creating-models
On Sun, Oct 23, 2011 at 4:08 PM, Swaroop Shankar V wrote:
> Hello All,
>
> I am trying to create a Edit form to edit user information. I would like to
> display the default values in the form fields rendered and am getting the
> values from the db table. I can take an approach by creating a dictionary
> with the values that needs to be populated in the form fields in my view
> file and then pass it to the html. Then in the html, i can manually set the
> values using the django-widget_tweaks. But the problem here is that there
> are few select box for which this approach wont work. So the next option is
> to do it from the forms.py but there i need to get the currently logged in
> user and since request object is not available i created an __init__
> function with the following statements
>
> def __init__(self, *args, **kwargs):
> self.request = kwargs.pop('request', None)
> super(UserEditForm, self).__init__(*args, **kwargs)
>
> but now i am not sure on how to set up the form values. My form's class
> code can be accessed via the url http://pastebin.com/1TuRmNhH . Please
> help.
>
> Thanks and Regards,
> Swaroop Shankar V
>
> --
> 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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Setting default values in a form from DB table
Hello All,
I am trying to create a Edit form to edit user information. I would like to
display the default values in the form fields rendered and am getting the
values from the db table. I can take an approach by creating a dictionary
with the values that needs to be populated in the form fields in my view
file and then pass it to the html. Then in the html, i can manually set the
values using the django-widget_tweaks. But the problem here is that there
are few select box for which this approach wont work. So the next option is
to do it from the forms.py but there i need to get the currently logged in
user and since request object is not available i created an __init__
function with the following statements
def __init__(self, *args, **kwargs):
self.request = kwargs.pop('request', None)
super(UserEditForm, self).__init__(*args, **kwargs)
but now i am not sure on how to set up the form values. My form's class code
can be accessed via the url http://pastebin.com/1TuRmNhH . Please help.
Thanks and Regards,
Swaroop Shankar V
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