old_contents: from django import forms
  
  from cyder.base.constants import LEVELS
  from cyder.base.mixins import UsabilityFormMixin
  from cyder.core.ctnr.models import Ctnr
  
  
  class CtnrForm(forms.ModelForm, UsabilityFormMixin):
      class Meta:
          model = Ctnr
          exclude = ('users',)
  
      def filter_by_ctnr_all(self, ctnr):
          pass
  
  
  class CtnrUserForm(forms.Form):
      level = forms.ChoiceField(widget=forms.RadioSelect,
                                label="Level*",
                                choices=[item for item in LEVELS.items()])
  
  class CtnrObjectForm(forms.Form):
      obj_type = forms.ChoiceField(
          widget=forms.RadioSelect,
          label='Type*',
          choices=(
              ('user', 'User'),
              ('domain', 'Domain'),
              ('range', 'Range'),
              ('workgroup', 'Workgroup')))
  
      def __init__(self, *args, **kwargs):
          obj_perm = kwargs.pop('obj_perm', False)
          super(CtnrObjectForm, self).__init__(*args, **kwargs)
          if not obj_perm:
              self.fields['obj_type'].choices = (('user', 'User'),)
  
      obj = forms.CharField(
          widget=forms.TextInput(attrs={'id': 'object-searchbox'}),
          label='Search*')
  
new_contents: from django import forms
  
  from cyder.base.constants import LEVELS
  from cyder.base.mixins import UsabilityFormMixin
  from cyder.core.ctnr.models import Ctnr
  
  
  class CtnrForm(forms.ModelForm, UsabilityFormMixin):
      class Meta:
          model = Ctnr
          exclude = ('users', 'domains', 'ranges', 'workgroups')
  
      def filter_by_ctnr_all(self, ctnr):
          pass
  
  
  class CtnrUserForm(forms.Form):
      level = forms.ChoiceField(widget=forms.RadioSelect,
                                label="Level*",
                                choices=[item for item in LEVELS.items()])
  
  class CtnrObjectForm(forms.Form):
      obj_type = forms.ChoiceField(
          widget=forms.RadioSelect,
          label='Type*',
          choices=(
              ('user', 'User'),
              ('domain', 'Domain'),
              ('range', 'Range'),
              ('workgroup', 'Workgroup')))
  
      def __init__(self, *args, **kwargs):
          obj_perm = kwargs.pop('obj_perm', False)
          super(CtnrObjectForm, self).__init__(*args, **kwargs)
          if not obj_perm:
              self.fields['obj_type'].choices = (('user', 'User'),)
  
      obj = forms.CharField(
          widget=forms.TextInput(attrs={'id': 'object-searchbox'}),
          label='Search*')
  
subject: Remove m2m fields from ctnr edit form