class Session(db.Model):
__tablename__ = 'sessions'
id = db.Column(db.Integer, primary_key=True)
quiz_id = db.Column(db.ForeignKey('quizzes.id'), nullable=False)
quiz = db.relationship("Quiz")
team_sessions = db.relationship('TeamSession')
device_token_id = db.Column(db.ForeignKey('device_tokens.id'))
device_token = db.relationship("DeviceToken")
state = db.Column(db.Enum(SessionState), nullable=False)
current_question_id = db.Column(db.ForeignKey('questions.id'),
nullable=True)
current_question = db.relationship('Question')
start_time = db.Column(
db.DateTime,
nullable=True) # Quiz is temporarily paused if start_time is NULL
offset = db.Column(db.Interval,
nullable=False,
default=datetime.timedelta())
timer_state = db.Column(db.Enum(FinalTimerState), nullable=False)
@classmethod
def on_display(cls):
'''
Whether the session should currently be displayed in its room
'''
return db.or_(cls.state == SessionState.running,
cls.state == SessionState.finished,
cls.state == SessionState.paused)
def isfinal(self):
return len(self.team_sessions) == 4
class Team(db.Model):
__tablename__ = 'teams'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(250), nullable=False)
year = db.Column(db.Integer, nullable=False)
team_sessions = db.relationship('TeamSession')
members = db.relationship('User')
class QuestionChoose(Question):
correct_answer_id = db.Column(
db.ForeignKey('answers_choose.id'), nullable=True
) # Has to be nullable because of inheritance. Use join instead?
answers = db.relationship('AnswerChoose',
foreign_keys='[AnswerChoose.question_id]',
order_by="AnswerChoose.id")
__mapper_args__ = {'polymorphic_identity': QuestionType.choose}
class AnswerChoose(db.Model):
__tablename__ = 'answers_choose'
id = db.Column(db.Integer, primary_key=True)
question_id = db.Column(
db.ForeignKey('questions.id', ondelete='CASCADE'), nullable=False
) # Can we specify this is only valid for QuestionChoose?
question = db.relationship("QuestionChoose",
foreign_keys="[AnswerChoose.question_id]")
answer = db.Column(db.String(250), nullable=False)
class TeamAnswer(db.Model):
__tablename__ = 'team_answers'
id = db.Column(db.Integer, primary_key=True)
team_session_id = db.Column(db.ForeignKey('team_sessions.id'),
nullable=False)
team_session = db.relationship("TeamSession")
answer_type = db.Column(db.Enum(AnswerType), nullable=False)
type = db.Column(db.Enum(QuestionType))
__mapper_args__ = {'polymorphic_on': type}
class Quiz(db.Model):
__tablename__ = 'quizzes'
id = db.Column(db.Integer, primary_key=True)
public = db.Column(db.Boolean, nullable=False)
name = db.Column(db.String(250), nullable=False)
year = db.Column(db.Integer, nullable=False)
questions = db.relationship("Question",
secondary=association_quiz_questions,
back_populates="quizzes",
order_by="Question.id")
class TeamSession(db.Model):
__tablename__ = 'team_sessions'
id = db.Column(db.Integer, primary_key=True)
team_id = db.Column(db.ForeignKey('teams.id'), nullable=False)
team = db.relationship("Team")
session_id = db.Column(db.ForeignKey('sessions.id'), nullable=False)
session = db.relationship("Session")
answers = db.relationship("TeamAnswer")
def score(self):
result = 0.0
for answer in self.answers:
if isinstance(answer, TeamAnswerChoose):
answer_choose = answer.answer
if answer_choose.question.correct_answer_id == answer_choose.id:
if answer.answer_type == AnswerType.normal:
result += 1.0
elif answer.answer_type == AnswerType.final_first:
result += 2.0
elif isinstance(answer, TeamAnswerEstimate):
correct_estimate = answer.question.correct_value
other_estimates = TeamAnswerEstimate.query.join(
TeamAnswerEstimate.team_session).filter(
TeamSession.session_id ==
self.session_id, # Same session
TeamAnswerEstimate.question_id ==
answer.question_id, # Same question
TeamAnswerEstimate.id != answer.id # Not me
).options(db.load_only("estimate")).all()
other_estimate_dists = [
abs(x.estimate - correct_estimate) for x in other_estimates
]
my_estimate_dist = abs(answer.estimate - correct_estimate)
# TODO implement answer type
if len(other_estimate_dists) == 0:
result += 1.0
else:
best_other_dist = min(other_estimate_dists)
if my_estimate_dist < best_other_dist:
result += 1.0
else:
print("WAT?")
return result
class Question(db.Model):
__tablename__ = 'questions'
id = db.Column(db.Integer, primary_key=True)
question = db.Column(db.String(500), nullable=False)
category_id = db.Column(db.ForeignKey('categories.id'), nullable=False)
image_file_name = db.Column(db.String(200),
nullable=True) # Optionales Bilds zur Frage
quizzes = db.relationship('Quiz',
secondary=association_quiz_questions,
back_populates='questions')
type = db.Column(db.Enum(QuestionType))
__mapper_args__ = {'polymorphic_on': type}
class TeamAnswerEstimate(TeamAnswer):
question_id = db.Column(db.ForeignKey('questions.id'), nullable=True)
question = db.relationship("Question")
estimate = db.Column(db.Float, nullable=True)
__mapper_args__ = {'polymorphic_identity': QuestionType.estimate}
class TeamAnswerChoose(TeamAnswer):
answer_id = db.Column(db.ForeignKey('answers_choose.id'), nullable=True)
answer = db.relationship("AnswerChoose")
__mapper_args__ = {'polymorphic_identity': QuestionType.choose}
class Category(db.Model):
__tablename__ = 'categories'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(250), nullable=False)
questions = db.relationship("Question", order_by="Question.id")