old_contents: from django import forms
  from django.forms import ModelForm
  from django.contrib.auth.models import Group
  from todo.models import Item, List
  from django.contrib.auth import get_user_model
  
  
  class AddListForm(ModelForm):
      # The picklist showing allowable groups to which a new list can be added
      # determines which groups the user belongs to. This queries the form object
      # to derive that list.
      def __init__(self, user, *args, **kwargs):
          super(AddListForm, self).__init__(*args, **kwargs)
          self.fields['group'].queryset = Group.objects.filter(user=user)
  
      class Meta:
          model = List
          exclude = []
  
  
  class AddItemForm(ModelForm):
      # The picklist showing the users to which a new task can be assigned
      # must find other members of the groups the current list belongs to.
      def __init__(self, task_list, *args, **kwargs):
          super(AddItemForm, self).__init__(*args, **kwargs)
          # print dir(self.fields['list'])
          # print self.fields['list'].initial
          self.fields['assigned_to'].queryset = get_user_model().objects.filter(groups__in=[task_list.group])
          self.fields['assigned_to'].label_from_instance = \
              lambda obj: "%s (%s)" % (obj.get_full_name(), obj.username)
  
      due_date = forms.DateField(
          required=False,
          widget=forms.DateTimeInput(attrs={'class': 'due_date_picker'})
      )
  
      title = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
  
      note = forms.CharField(widget=forms.Textarea(), required=False)
  
      class Meta:
          model = Item
          exclude = []
  
  
  class EditItemForm(ModelForm):
      # The picklist showing the users to which a new task can be assigned
      # must find other members of the groups the current list belongs to.
      def __init__(self, *args, **kwargs):
          super(EditItemForm, self).__init__(*args, **kwargs)
          self.fields['assigned_to'].queryset = get_user_model().objects.filter(groups__in=[self.instance.list.group])
  
      class Meta:
          model = Item
          exclude = ('created_date', 'created_by',)
  
  
  class AddExternalItemForm(ModelForm):
      """Form to allow users who are not part of the GTD system to file a ticket."""
  
      title = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
      note = forms.CharField(
          widget=forms.widgets.Textarea(),
          help_text='Foo',
      )
  
      class Meta:
          model = Item
          exclude = ('list', 'created_date', 'due_date', 'created_by', 'assigned_to',)
  
  
  class SearchForm(forms.Form):
      """Search."""
  
      q = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
  
new_contents: from django import forms
  from django.forms import ModelForm
  from django.contrib.auth.models import Group
  from todo.models import Item, List
  from django.contrib.auth import get_user_model
  
  
  class AddListForm(ModelForm):
      # The picklist showing allowable groups to which a new list can be added
      # determines which groups the user belongs to. This queries the form object
      # to derive that list.
      def __init__(self, user, *args, **kwargs):
          super(AddListForm, self).__init__(*args, **kwargs)
          self.fields['group'].queryset = Group.objects.filter(user=user)
  
      class Meta:
          model = List
          exclude = []
  
  
  class AddItemForm(ModelForm):
      # The picklist showing the users to which a new task can be assigned
      # must find other members of the groups the current list belongs to.
      def __init__(self, task_list, *args, **kwargs):
          super(AddItemForm, self).__init__(*args, **kwargs)
          # print dir(self.fields['list'])
          # print self.fields['list'].initial
          self.fields['assigned_to'].queryset = get_user_model().objects.filter(groups__in=[task_list.group])
          self.fields['assigned_to'].label_from_instance = \
              lambda obj: "%s (%s)" % (obj.get_full_name(), obj.username)
  
      due_date = forms.DateField(widget=forms.DateInput(attrs={'type': 'date'}))
  
      title = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
  
      note = forms.CharField(widget=forms.Textarea(), required=False)
  
      class Meta:
          model = Item
          exclude = []
  
  
  class EditItemForm(ModelForm):
      # The picklist showing the users to which a new task can be assigned
      # must find other members of the groups the current list belongs to.
      def __init__(self, *args, **kwargs):
          super(EditItemForm, self).__init__(*args, **kwargs)
          self.fields['assigned_to'].queryset = get_user_model().objects.filter(groups__in=[self.instance.list.group])
  
      due_date = forms.DateField(widget=forms.DateInput(attrs={'type': 'date'}))
  
      class Meta:
          model = Item
          exclude = ('created_date', 'created_by',)
  
  
  class AddExternalItemForm(ModelForm):
      """Form to allow users who are not part of the GTD system to file a ticket."""
  
      title = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
      note = forms.CharField(
          widget=forms.widgets.Textarea(),
          help_text='Foo',
      )
  
      class Meta:
          model = Item
          exclude = ('list', 'created_date', 'due_date', 'created_by', 'assigned_to',)
  
  
  class SearchForm(forms.Form):
      """Search."""
  
      q = forms.CharField(
          widget=forms.widgets.TextInput(attrs={'size': 35})
      )
  
subject: Use HTML5 date inputs for due_date