Re: Show HTML in Labels for Model Choice Fields
Hey Adi your answer saved me lots of work, but i want to elaborate on it, i
had this use case but i didnt have to subclass the field all i did was
defined a new label_from_instance
def Option_with_specie(self):
return mark_safe(" %s
"%(self.species.name, self.pk, self.name))
And then on the forms init:
class PetForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(PetForm, self).__init__(*args, **kwargs)
if 'instance' in kwargs:
self.fields['breed'].label_from_instance = Option_with_specie
So now i customized the select field outputted by the foreing key, thanks
to you Adi for finding just the right method to override.
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Re: Show HTML in Labels for Model Choice Fields
I was able to find the solution to it myself.
The key was to
1. Create a custom field that extended ModelChoiceField.
2. Overwrite the label_from_instance method in the custom field.
3. Return a HTML string from the label_from_instance method, and
marking that as a safe_string.
from django.forms import ModelChoiceField
from django.utils.safestring import mark_safe
class ThemeChoiceField(ModelChoiceField):
def label_from_instance(self,obj):
return mark_safe("%s - Click here to see an example. \
" \
% (obj.name, obj.pk, obj.pk, obj.image.url))
-Adi
On Dec 30 2010, 6:36 pm, Adi wrote:
> Hi I have a situation like this
>
> class AppearanceThemesForm(forms.Form):
> page_theme =
> forms.ModelChoiceField(widget=forms.RadioSelect(attrs={'title':'Select
> the appropriate theme for your pages.'}),
>
> queryset=Theme.objects.filter(section="1"),
>
> initial=Theme.objects.get(section="1",representation="").pk,
> label="Page Theme")
>
> And my Theme model is like this:
>
> class Theme(models.Model):
> name = models.CharField(max_length=32)
> image = models.ImageField(upload_to="images/themes", null=True)
>
> def __unicode__(self):
> return "%s" % (self.name)
>
> When I render AppearanceThemesForm in my template, i would like to be
> able to show a link next to the label. If a user clicks the link, the
> webpage displays the image associated with Theme.
>
> I tried putting in a custom field that extends the ModelChoiceField,
> and in the label_from_instance method, tried to output the HTML, but
> that gets escaped.
>
> What is the proper way to achieve what i am trying to do?
>
> Alternatively, how do i get access the underlying model object behind
> the modelchoice field in my templates?
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Show HTML in Labels for Model Choice Fields
Hi I have a situation like this
class AppearanceThemesForm(forms.Form):
page_theme =
forms.ModelChoiceField(widget=forms.RadioSelect(attrs={'title':'Select
the appropriate theme for your pages.'}),
queryset=Theme.objects.filter(section="1"),
initial=Theme.objects.get(section="1",representation="").pk,
label="Page Theme")
And my Theme model is like this:
class Theme(models.Model):
name = models.CharField(max_length=32)
image = models.ImageField(upload_to="images/themes", null=True)
def __unicode__(self):
return "%s" % (self.name)
When I render AppearanceThemesForm in my template, i would like to be
able to show a link next to the label. If a user clicks the link, the
webpage displays the image associated with Theme.
I tried putting in a custom field that extends the ModelChoiceField,
and in the label_from_instance method, tried to output the HTML, but
that gets escaped.
What is the proper way to achieve what i am trying to do?
Alternatively, how do i get access the underlying model object behind
the modelchoice field in my templates?
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