old_contents: from django import forms
  from .models import DeviceToken
  
  
  class CertFileUploadForm(forms.Form):
      cert_file = forms.FileField()
      target = forms.ChoiceField(choices=((0, 'Develop'), (1, 'Distribute')), required=True, widget=forms.RadioSelect)
  
  
  class NotificationSendForm(forms.Form):
  
      target = forms.ChoiceField(choices=((0, 'Develop'), (1, 'Distribute')),
                                 required=True,
                                 widget=forms.RadioSelect,
                                 initial=0)
      device_token = forms.MultipleChoiceField(label='Device Token',
                                               choices=tuple(map(lambda token:
                                                                 (token.id, token.device_token),
                                                                 DeviceToken.objects.all())),
                                               required=True
                                               )
      title = forms.CharField(required=True)
      subtitle = forms.CharField(required=False)
      body = forms.CharField(required=False)
      sound = forms.CharField(initial='default', required=True)
      badge = forms.IntegerField(initial=1, min_value=0, required=True)
      content_available = forms.BooleanField(initial=False, required=False)
      mutable_content = forms.BooleanField(initial=False, required=False)
      extra = forms.CharField(widget=forms.Textarea, required=False)
  
new_contents: from django import forms
  from .models import DeviceToken
  
  
  class CertFileUploadForm(forms.Form):
      cert_file = forms.FileField()
      target = forms.ChoiceField(choices=((0, 'Develop'), (1, 'Distribute')), required=True, widget=forms.RadioSelect)
  
  
  class NotificationSendForm(forms.Form):
  
      target = forms.ChoiceField(choices=((0, 'Develop'), (1, 'Distribute')),
                                 required=True,
                                 widget=forms.RadioSelect,
                                 initial=0)
      device_token = forms.MultipleChoiceField(label='Device Token',
                                               choices=tuple(map(lambda token: (token.id, token.device_token),
                                                                 DeviceToken.objects.all())),
                                               required=True
                                               )
      title = forms.CharField(required=True)
      subtitle = forms.CharField(required=False)
      body = forms.CharField(required=False)
      sound = forms.CharField(initial='default', required=True)
      badge = forms.IntegerField(initial=1, min_value=0, required=True)
      content_available = forms.BooleanField(initial=False, required=False)
      mutable_content = forms.BooleanField(initial=False, required=False)
      extra = forms.CharField(widget=forms.Textarea, required=False)
  
subject: Modify choice's tuple