def post(self):
subject=self.get_argument('subject')
student=self.get_argument('student',default="")
s=Subject.objects(id=ObjectId(subject)).first()
if not s:
return self.write({'err':'课题不存在'})
if s.professor.username!=self.current_user.username:
return self.write({'err':'不是你的课题'})
if s.selected_by==[]:
return self.write({'err':'不可改选上阶段选好的课题'})
# Clear previous approvement
if s.applied_to:
u=Student.objects(username=s.applied_to.username).first()
u.applied_to=None
u.save()
s.applied_to=None
if student:
for u_embedded in s.selected_by:
u=Student.objects(username=u_embedded.username).first()
if u.username==student:
# You are the one!
s.applied_to=u
u.applied_to=s
u.save()
s.save()
self.write({})
def post(self):
subject=self.get_argument('subject')
student=self.get_argument('student')
s=Subject.objects(id=ObjectId(subject)).first()
if not s:
return self.write({'err':'课题不存在'})
if s.applied_to:
return self.write({'err':'课题已被分配给'+s.applied_to.realname.encode('utf-8')})
u=Student.objects(username=student).first()
if not u:
return self.write({'err':'学生不存在'})
if u.applied_to:
return self.write({'err':'学生已被分配'+u.applied_to.name.encode('utf-8')+'课题'})
# Match Straightly
s.selected_by=[]
s.applied_to=u
u.selected=None
u.applied_to=s
s.save()
u.save()
self.write({})
def get(self):
student=self.get_argument('student',"")
u=Student.objects(username=student).first()
if not u or not u.resume:
raise HTTPError(404)
# Guess browser and write Content-Disposition
# FIXME: an ugly hack here due to a MongoEngine bug
# must use `u.resume.name' for filename while write using `filename'
# FIXME: filename will break on android with its internal browser
e=quote(u.resume.name.encode('utf-8')).replace('+','%20')
ua=self.request.headers['User-Agent'].lower()
if "msie" in ua:
cd='filename="%s"'%e
elif "firefox" in ua:
cd="filename*=UTF-8''%s"%e
else:
cd='filename="%s"'%u.resume.name
self.set_header('Content-Disposition','attachment;'+cd)
self.set_header('Content-Type','application/octet-stream')
self.write(u.resume.read())
