def count(self):

        return self.report.count()

class BasicReport(Report):

    def __init__(self, title, headings, link_view=None):

    def count(self):

        return self._queryset.count()

class Links(Report):

    def __init__(self, title, links):

    def count(self):

        return len(self._links)

def report_view(title, form_type=None):

    ''' Decorator that converts a report view function into something that

    displays a Report.