models.py

        else:
            return u"OTHER_STATE"

    def stringify_percentage(self):
        if self.state == grade_state_change_types.graded:
            if self.valid_percentages:
                return "%.1f" % self.percentage()
            else:
                return u""
        else:
            return ""
# }}}


# {{{ flow <-> grading integration

def get_flow_grading_opportunity(course, flow_id, flow_desc, grading_rule):
    from course.utils import FlowSessionGradingRule
    assert isinstance(grading_rule, FlowSessionGradingRule)

    gopp, created = GradingOpportunity.objects.get_or_create(
            course=course,
            identifier=grading_rule.grade_identifier,
            defaults=dict(
                name="Flow: %s" % flow_desc.title,
                flow_id=flow_id,
                aggregation_strategy=grading_rule.grade_aggregation_strategy,
                ))

    return gopp

# }}}


# {{{ XMPP log

class InstantMessage(models.Model):
    participation = models.ForeignKey(Participation)
    text = models.CharField(max_length=200)
    time = models.DateTimeField(default=now)

    class Meta:
        ordering = ("participation__course", "time")

    def __unicode__(self):
        return "%s: %s" % (self.participation, self.text)

# }}}

# vim: foldmethod=marker