[Fixed]-Django – class in ChoiceField

by

1👍

✅

You could use a Factory pattern for this. Use HumanModel.__name__ to refer to the name of the class in the selection, than use the name in the Factory to create concrete instances of the class.

class SelectForm(forms.Form):
    selection = forms.ChoiceField(
    choices=[
        (HumanModel.__name__, 'Human'),
        (OtherHumanModel.__name__, 'Other Human')
    ]
)

class HumanModelFactory(object):
    def __init__(self, model_name):
        if model_name == "HumanModel":
            return HumanModel()
        if model_name == "OtherHumanModel":
            return OtherHumanModel()

# usage
model_name = request.POST['selection'] # e.g. 'HumanModel'
instance = HumanModelFactory(model_name)
👤dotcs

Leave a comment