old_contents: from django import forms
  from . import models
  
  
  class TalkProposalForm(forms.Form):
      talk_title = forms.CharField()
      talk_description = forms.CharField(max_length=1000, widget=forms.Textarea)
      speaker = forms.ModelChoiceField(queryset=models.Speaker.objects.all(), required=False)
      speaker_first_name = forms.CharField(required=False, max_length=30)
      speaker_last_name = forms.CharField(required=False, max_length=30)
      speaker_website = forms.URLField(required=False)
      speaker_phone = forms.CharField(required=False, max_length=30)
      speaker_email = forms.EmailField(required=False)
      speaker_biography = forms.CharField(required=False)
      speaker_photo = forms.ImageField(required=False)
  
new_contents: from django import forms
  from . import models
  
  
  class TalkProposalForm(forms.Form):
      talk_title = forms.CharField()
      talk_description = forms.CharField(max_length=1000, widget=forms.Textarea)
      speaker = forms.ModelChoiceField(queryset=models.Speaker.objects.all(), required=False)
      speaker_first_name = forms.CharField(required=False, max_length=30)
      speaker_last_name = forms.CharField(required=False, max_length=30)
      speaker_website = forms.URLField(required=False)
      speaker_phone = forms.CharField(required=False, max_length=30)
      speaker_email = forms.EmailField(required=False)
      speaker_biography = forms.CharField(required=False, widget=forms.Textarea)
      speaker_photo = forms.ImageField(required=False)
  
subject: Change biography widget.