views.py 文件源码

def get_form_list(self):
        """
        This method returns a form_list based on the initial form list but
        checks if there is a condition method/value in the condition_list.
        If an entry exists in the condition list, it will call/read the value
        and respect the result. (True means add the form, False means ignore
        the form)

        The form_list is always generated on the fly because condition methods
        could use data from other (maybe previous forms).
        """
        form_list = SortedDict()
        for form_key, form_class in six.iteritems(self.form_list):
            # try to fetch the value from condition list, by default, the form
            # gets passed to the new list.
            condition = self.condition_dict.get(form_key, True)
            if callable(condition):
                # call the value if needed, passes the current instance.
                condition = condition(self)
            if condition:
                form_list[form_key] = form_class
        return form_list