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How to change the ManyToManyField widget?

How to change ManyToManyField widget to CheckboxSelectMultiple without overriding field definition in a ModelForm

  • I have django ModelForm for model with ManyToManyField. I want to change widget for this field toCheckboxSelectMultiple. Can I do this without overriding a field in a form definition? I constantly use code similar to this: class MyModel(ModelForm): m2m_field = forms.ModelMultipleChoiceField(queryset = SomeModel.objects.all(), widget = forms.CheckboxSelectMultiple()) Is there other way to do this? EDIT: I need this for Django 1.1.1 project

  • Answer:

    If you're using Django 1.2+, you can use the widgets tuple in the inner Meta class. class MyModelForm(forms.ModelForm): class Meta: widgets = {'m2m_field': forms.CheckboxSelectMultiple} See http://docs.djangoproject.com/en/1.2/topics/forms/modelforms/#overriding-the-default-field-types-or-widgets.

Lukasz Dziedzia at Stack Overflow Visit the source

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Another way to do this is doing it in the init of the ModelForm: class MyModel(ModelForm): def __init__(self, *args, **kwargs): super(MyModel, self).__init__(*args, **kwargs) self.fields['m2m_field'].widget = forms.CheckboxSelectMultiple() [...]

patrick

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