Django BooleanField as radio buttons

djangodjango-formsdjango-models

Is there a widget in Django 1.0.2 to render a models.BooleanField as two radio buttons instead of a checkbox?

Best Answer

Django 1.2 has added the "widgets" Meta option for modelforms:

In your models.py, specify the "choices" for your boolean field:

BOOL_CHOICES = ((True, 'Yes'), (False, 'No'))

class MyModel(models.Model):
    yes_or_no = models.BooleanField(choices=BOOL_CHOICES)

Then, in your forms.py, specify the RadioSelect widget for that field:

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        widgets = {
            'yes_or_no': forms.RadioSelect
        }

I've tested this with a SQLite db, which also stores booleans as 1/0 values, and it seems to work fine without a custom coerce function.

Related Solutions

Python – a “slug” in Django

A "slug" is a way of generating a valid URL, generally using data already obtained. For instance, a slug uses the title of an article to generate a URL. I advise to generate the slug by means of a function, given the title (or another piece of data), rather than setting it manually.

An example:

<title> The 46 Year Old Virgin </title>
<content> A silly comedy movie </content>
<slug> the-46-year-old-virgin </slug>

Now let's pretend that we have a Django model such as:

class Article(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField(max_length=1000)
    slug = models.SlugField(max_length=40)

How would you reference this object with a URL and with a meaningful name? You could for instance use Article.id so the URL would look like this:

www.example.com/article/23

Or, you might want to reference the title like this:

www.example.com/article/The 46 Year Old Virgin

Since spaces aren't valid in URLs, they must be replaced by %20, which results in:

www.example.com/article/The%2046%20Year%20Old%20Virgin

Both attempts are not resulting in very meaningful, easy-to-read URL. This is better:

www.example.com/article/the-46-year-old-virgin

In this example, the-46-year-old-virgin is a slug: it is created from the title by down-casing all letters, and replacing spaces by hyphens -.

Also see the URL of this very web page for another example.

Python – How to do a not equal in Django queryset filtering

You can use Q objects for this. They can be negated with the ~ operator and combined much like normal Python expressions:

from myapp.models import Entry
from django.db.models import Q

Entry.objects.filter(~Q(id=3))

will return all entries except the one(s) with 3 as their ID:

[<Entry: Entry object>, <Entry: Entry object>, <Entry: Entry object>, ...]

Best Answer

Related Solutions

Python – a “slug” in Django

Python – How to do a not equal in Django queryset filtering

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