[Fixed]-Need to get id instead of selected value in modelchoicefield django

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This model form saved my life. The MyModelChoiceField class shows the label but send id on the backend.

class MyModelChoiceField(forms.ModelChoiceField):
    def label_from_instance(self, obj):
        return obj.description


class TmpFormm(forms.ModelForm):
    pos_code = MyModelChoiceField(queryset=Positions.objects.all(), widget=forms.Select(attrs={'class': 'select2_single form-control', 'blank': 'True'}))
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