old_contents: from django import forms
  from django.core.exceptions import ValidationError
  
  from wye.profiles.models import UserType
  
  from . import models
  
  
  class RegionalLeadForm(forms.ModelForm):
  
      class Meta:
          model = models.RegionalLead
          exclude = ()
  
      def clean(self):
          location = self.cleaned_data['location']
          error_message = []
          for u in self.cleaned_data['leads']:
              if not u.profile:
                  error_message.append('Profile for user %s not found' % (u))
              elif u.profile.location != location:
                  error_message.append(
                      "User %s doesn't belong to region %s" % (u, location))
          if error_message:
              raise ValidationError(error_message)
  
      def save(self, force_insert=False, force_update=False, commit=True):
          m = super(RegionalLeadForm, self).save(commit=False)
          for u in self.cleaned_data['leads']:
              u.profile.usertype.add(UserType.objects.get(slug='lead'))
          return m
  
  
  class LocationForm(forms.ModelForm):
  
      class Meta:
          model = models.Location
          exclude = ()
  
  
  class StateForm(forms.ModelForm):
  
      class Meta:
          model = models.State
          exclude = ()
  
new_contents: from django import forms
  from django.core.exceptions import ValidationError
  
  from wye.profiles.models import UserType
  
  from . import models
  
  
  class RegionalLeadForm(forms.ModelForm):
  
      class Meta:
          model = models.RegionalLead
          exclude = ()
  
      def clean(self):
          error_message = []
          if (self.cleaned_data.get('location', '') and
                  self.cleaned_data.get('leads', '')):
              location = self.cleaned_data['location']
              for u in self.cleaned_data['leads']:
                  if not u.profile:
                      error_message.append('Profile for user %s not found' % (u))
                  elif u.profile.location != location:
                      error_message.append(
                          "User %s doesn't belong to region %s" % (u, location))
          if error_message:
              raise ValidationError(error_message)
  
      def save(self, force_insert=False, force_update=False, commit=True):
          m = super(RegionalLeadForm, self).save(commit=False)
          for u in self.cleaned_data['leads']:
              u.profile.usertype.add(UserType.objects.get(slug='lead'))
          return m
  
  
  class LocationForm(forms.ModelForm):
  
      class Meta:
          model = models.Location
          exclude = ()
  
  
  class StateForm(forms.ModelForm):
  
      class Meta:
          model = models.State
          exclude = ()
  
subject: Handle empty location and leads data