def by_subject(self, subject_id):
subject = Subject.get_by_id(int(subject_id))
if not subject:
return self.abort(404)
alerts = []
if self.request.method == 'POST':
title = self.request.get('title')
desc = self.request.get('desc')
if not title:
alerts.append('Title field is required!')
else:
clazz = Class(title=title, description=desc, subject=subject.key)
clazz.put()
return self.render('app/class_detail.html', cls=clazz)
classes = subject.get_classes()
return self.render('app/classes.html', classes=classes, alerts=alerts, subject=subject)
