Question

I have a ModelForm that contains a ModelChoiceField using the RadioSelect widget.

class MyAForm(forms.ModelForm):
    one_property = models.ModelChoiceField(
        widget=forms.RadioSelect,
        queryset=MyBModel.objects.filter(visible=True),
        empty_label=None)
    class Meta:
        model = MyAModel

There are attributes on MyBModel that I want to display next to the radio button. I would override label_from_instance on a sub-class of ModelChoiceField but this does not allow me to do what I want as I want the radio button to appear inside a table which has a row for each selection item.

So somewhere in my template I want something like…

{% for field in form.visible_fields %}
    {% if field.name == "one_property" %}
    <table>
        {% for choice in field.choices %}
            <tr>
                <td><input value="{{choice.id}}" type="radio" name="one_property" />{{choice.description}}</td>
                <td><img src="{{choice.img_url}}" /></td>
            </tr>
        {% endfor %}
    </table>
    {% endif %}
{% endfor %}

Unfortunately field.choices returns a tuple of the object’s id and the label and not an instance from the queryset.

Is there a simple way to get instances of the choices for a ModelChoiceField to use within a template?

Answer 1

After delving into the django source for ModelChoiceField I discovered it has a property “queryset”.

I was able to use something like…

{% for field in form.visible_fields %}
    {% if field.name == "one_property" %}
    <table>
        {% for choice in field.queryset %}
            <tr>
                <td><input value="{{choice.id}}" type="radio" name="one_property" />{{choice.description}}</td>
                <td><img src="{{choice.img_url}}" /></td>
            </tr>
        {% endfor %}
    </table>
    {% endif %}
{% endfor %}