class Meta:

        model = ConferenceSpeaker

        exclude = [

            'user',

            'biography_html',

            'experience_html',

            'invite_email',

            'invite_token',

            'annotation',

        ]

    def __init__(self, *a, **k):

        super(ConferenceSpeakerForm, self).__init__(*a, **k)

        self.fields['code_of_conduct'].required = True

class ProposalForm(forms.ModelForm, ProposalMixIn):

    def __init__(self, *a, **k):

        super(ProposalForm, self).__init__(*a, **k)

        self.description_required()

        self.abstract_required()

    def clean_description(self):

        value = self.cleaned_data["description"]

        if len(value) > 400:

            raise forms.ValidationError(

                u"The description must be less than 400 characters"

            )

        return value

class TalkProposalForm(ProposalForm):

    class Meta:

        model = TalkProposal

        fields = [

            "title",

            "description",

            "abstract",

            "new_presentation",

            "extended_presentation",

            "additional_notes",

            "extra_av",

            "slides_release",

            "recording_release",