Note that if you have different deadlines, reviewers, etc. you'll want

    to distinguish the section as well as the kind.

    """

    section = models.ForeignKey(Section, related_name="proposal_kinds", verbose_name=_("Section"))

    name = models.CharField(_("Name"), max_length=100)

    slug = models.SlugField(verbose_name=_("Slug"))

    def __str__(self):

        return self.name

@python_2_unicode_compatible

class ProposalBase(models.Model):

    objects = InheritanceManager()

    kind = models.ForeignKey(ProposalKind, verbose_name=_("Kind"))

    title = models.CharField(max_length=100, verbose_name=_("Title"))

    abstract = models.TextField(

        _("Abstract"),

                    "href='http://daringfireball.net/projects/markdown/basics' " "target='_blank'>Markdown</a>.")

    )

    abstract_html = models.TextField(blank=True)

    private_abstract = models.TextField(

        _("Private Abstract"),

        help_text=_("This will only be shown to organisers and reviewers. You "

                    "should provide any details about your proposal that you "

                    "don't want to be public here. Edit using <a " "href='http://daringfireball.net/projects/markdown/basics' "

                    "target='_blank'>Markdown</a>.")

    )

    private_abstract_html = models.TextField(blank=True)

    technical_requirements = models.TextField(

        _("Special Requirements"),

        blank=True,

        help_text=_("Speakers will be provided with: Internet access, power, "

                    "projector, audio.  If you require anything in addition, "

                    "please list your technical requirements here.  Such as: a "

                    "static IP address, A/V equipment or will be demonstrating "

                    "security-related techniques on the conference network. "

                    "Edit using <a "

                    "href='http://daringfireball.net/projects/markdown/basics' "

                    "target='_blank'>Markdown</a>.")

    )

    technical_requirements_html = models.TextField(blank=True)

        max_length=100,

        blank=True,

        help_text=_("The name of the project you will be talking about."),

    )

    project_url = models.URLField(

        _("Project URL"),

        blank=True,

        help_text=_("If your project has a webpage, specify the URL here so "

                    "the committee can find out more about your proposal.")

    )

    video_url = models.URLField(

        _("Video"),

        blank=True,

        help_text=_("You may optionally provide us with a link to a video of "

                    "you speaking at another event, or of a short 'elevator "

                    "pitch' of your proposed talk.")

    )

    submitted = models.DateTimeField(

        default=now,

        editable=False,

        verbose_name=_("Submitted")

    )

    speaker = models.ForeignKey(Speaker, related_name="proposals", verbose_name=_("Speaker"))