def analyzeQuestion(self,question):
answers=[]
try:
answers=dbhelper.fetchAnswersOf(question)
except dbhelper.InvalidIdError:
raise
#TODO must check answers size
correctAnswereeThetas={}
totalAnswereeThetas={}
#initialize all possible estimation thetas
for j in range(0,10,1):
correctAnswereeThetas[float(j)]=0.0
totalAnswereeThetas[float(j)]=0.0
for answer in answers:
#find number of people who gave this answer, make it distinct for user, meaning only one answer by a given user will be tabulated
query=AnsweredQuestion.query(AnsweredQuestion.answer==ndb.Key('Answer',answer.key.id()),projection=[AnsweredQuestion.user],distinct=True)
givenAnswers=query.fetch() #who are the people who answered this question?
for givenAnswer in givenAnswers:
who=EstimationCredentials.query(EstimationCredentials.user==givenAnswer.user)
#TODO check if there is only one credential(not implemented just now)
#find theta of this person
theta=who.get().estimatedTheta
totalAnswereeThetas[theta]=totalAnswereeThetas[theta]+1.0
if answer.correct:
#increment the specific estimatedTheta counter by 1
correctAnswereeThetas[theta]=correctAnswereeThetas[theta]+1.0
#normalize correctAnswerrThetas
for j in range(0,10,1):
if totalAnswereeThetas[float(j)]!=0: #ensures we don't divide by zero
correctAnswereeThetas[float(j)]=correctAnswereeThetas[float(j)]/totalAnswereeThetas[float(j)]
return (answers, correctAnswereeThetas, totalAnswereeThetas)
def get(self,q_id):
#get the current user
user=users.get_current_user()
if not user: #if user object is None i.e. No user can be determined
#redirect to the user authentication page
self.redirect(users.create_login_url(self.request.uri))
question=None
answers=[]
try:
question=dbhelper.fetchQuestion(int(q_id))
answers=dbhelper.fetchAnswersOf(question)
except dbhelper.InvalidIdError:
question=Question(question="Could not find this question") #should ideally redirect to 404 page
#Values to pass to the View component
vals={'question':question,'answers':answers,'current_user':user}
#render to the template
template=jinjaEnv.get_template('answerQuestion.html')
#write it to the handler's output stream
self.response.out.write(template.render(vals))
