How to split one form fields into multiple fields of a model in django?

问题

This question is similar to

Using multiple input fields for one model's attribute with django

and

How to render two form fields as one field in Django forms?

What I need is basically the opposite of MultiValueField where I can save data from one form field - Name into two model fields - Firstname, Lastname. I'm unable to find any such thing like the opposite of MultiValueField.

Can someone please suggest me what is the better way to do it.

回答1:

Why don't you define the name field in Form and override the save method to save to the model fields like this:

class SomeForm(forms.ModelForm):
    name = forms.CharField(max_length=255, required=True)

    class Meta:
        model = YourModel
        fields = ['name', 'and_other_fields']

    def save(self, commit=True)
        instance = super(SomeForm, self).save(commit=False)
        _name = self.cleaned_data.get('first_name').split(' ')
        instance.first_name = _name[0]
        instance.last_name = ' '.join(_name[1:])
        instance.save()
        return instance

回答2:

Assuming, user will type first name and last name seperated by space. you can use this:

u_name = YourModelName()

name = request.POST['name'].split(" ") # give attribute name in html and use that name here
first_name = name[0]
last_name = name[1]

u_name.first_name = first_name
u_name.last_name = last_name

u_name.save()

you can use any method to save your data. just use split.

来源：https://stackoverflow.com/questions/57288620/how-to-split-one-form-fields-into-multiple-fields-of-a-model-in-django