class Course(db.Model):
__table_args__ = {'schema': 'moodle'}
__tablename__ = 'mdl_course'
id = db.Column(db.Integer, primary_key=True)
full_name = db.Column('fullname', db.Unicode(254))
short_name = db.Column('shortname', db.Unicode(100))
category = db.Column(db.Integer)
password = db.Column(db.Unicode(50))
visible = db.Column(db.Boolean)
def require_password(self):
return bool(self.password)
@deprecated('view.serializers.course.CourseSchema')
def serialize(self):
serialized = attrs_to_dict(
self,
'id',
'full_name',
'short_name',
)
serialized['require_password'] = self.require_password()
if not self.require_password():
serialized['sections'] = [
section.serialize() for section in self.sections.all()
if section.visible
]
return serialized
class User(SimpleUser):
__mapper_args__ = {'polymorphic_identity': 'user'}
username = db.Column(db.Unicode(100))
email = db.Column(db.Unicode(100))
city = db.Column(db.Unicode(20))
school = db.Column(db.Unicode(255))
problems_week_solved = db.Column(db.Integer)
roles = db.relationship('Role',
secondary='moodle.mdl_role_assignments',
lazy='select')
@property
def token(self):
return generate_auth_token(self)
@classmethod
def check_password(cls, password_md5: str, password: str) -> bool:
return password_md5 == cls.hash_password(password)
@staticmethod
def hash_password(plan_password: str) -> str:
"""Returns MD5 hash for plan password string.
Raises ValueError if password string is invalid.
:param plan_password: password string to hash
:return: hashed password
"""
return hashlib.md5(plan_password.encode('utf-8')).hexdigest()
class Problem(db.Model):
__table_args__ = {'schema':'moodle'}
__tablename__ = 'mdl_problems'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.Unicode(255))
content = db.Column(db.Text)
review = db.Column(db.Text)
hidden = db.Column(db.Boolean)
timelimit = db.Column(db.Float)
memorylimit = db.Column(db.Integer)
description = db.Column(db.Text)
analysis = db.Column(db.Text)
sample_tests = db.Column(db.Unicode(255))
sample_tests_html = db.Column(db.Text)
sample_tests_json = db.Column(JsonType)
show_limits = db.Column(db.Boolean)
output_only = db.Column(db.Boolean)
pr_id = db.Column(db.Integer, db.ForeignKey('moodle.mdl_ejudge_problem.id'))
ejudge_problem = relationship('EjudgeProblem', lazy='select')
def __init__(self, *args, **kwargs):
super(Problem, self).__init__(*args, **kwargs)
self.hidden = 1
self.show_limits = True
class Resource(CourseModuleInstance, db.Model):
"""
Модуль курса, описывающий ссылку
"""
__table_args__ = {'schema': 'moodle'}
__tablename__ = 'mdl_resource'
__mapper_args__ = {
'polymorphic_identity': 'resource',
'concrete': True,
}
MODULE = 13
id = db.Column(db.Integer, primary_key=True)
course_id = db.Column('course', db.Integer)
name = db.Column(db.Unicode(255))
type_ = db.Column('type', db.Unicode(30))
reference = db.Column(db.Unicode(255))
summary = db.Column(db.UnicodeText())
def serialize(self):
serialized = attrs_to_dict(
self,
'id',
'course_id',
'name',
'type',
'reference',
'summary',
)
serialized['type'] = self.type_
return serialized
class SimpleUser(db.Model):
RESET_PASSWORD_LENGTH = 20
__table_args__ = ({'schema': 'moodle'})
__tablename__ = 'mdl_user'
id = db.Column(db.Integer, primary_key=True)
firstname = db.Column(db.Unicode(100))
lastname = db.Column(db.Unicode(100))
deleted = db.Column('deleted', db.Boolean)
problems_solved = db.Column(db.Integer)
password_md5 = db.Column('password', db.Unicode(32))
class Statement(db.Model):
__table_args__ = {'schema': 'moodle'}
__tablename__ = 'mdl_statements'
__mapper_args__ = {
'polymorphic_identity': 'statement',
'concrete': True,
}
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.Unicode(255))
summary = db.Column(MEDIUMTEXT)
numbering = db.Column(db.Integer)
disable_printing = db.Column('disableprinting', db.Boolean)
custom_titles = db.Column('customtitles', db.Boolean)
time_created = db.Column('timecreated', db.Integer)
time_modified = db.Column('timemodified', db.Integer)
contest_id = db.Column(db.Integer)
time_start = db.Column('timestart', db.Integer)
time_stop = db.Column('timestop', db.Integer)
olympiad = db.Column(db.Boolean)
virtual_olympiad = db.Column(db.Boolean)
virtual_duration = db.Column(db.Integer)
settings = db.Column(JsonType)
problems = db.relationship('Problem',
secondary='moodle.mdl_statements_problems_correlation')
class SimpleUser(db.Model):
RESET_PASSWORD_LENGTH = 20
__table_args__ = ({'schema': 'moodle'})
__tablename__ = 'mdl_user'
id = db.Column(db.Integer, primary_key=True)
firstname = db.Column(db.Unicode(100))
lastname = db.Column(db.Unicode(100))
deleted = db.Column('deleted', db.Boolean)
problems_solved = db.Column(db.Integer)
password_md5 = db.Column('password', db.Unicode(32))
statement = db.relationship(
'Statement',
secondary=StatementUser.__table__,
backref='StatementUsers1',
lazy='dynamic',
)
statements = association_proxy('StatementUsers2', 'statement')
class User(SimpleUser):
__mapper_args__ = {'polymorphic_identity': 'user'}
username = db.Column(db.Unicode(100))
email = db.Column(db.Unicode(100))
city = db.Column(db.Unicode(20))
school = db.Column(db.Unicode(255))
problems_week_solved = db.Column(db.Integer)
roles = db.relationship('Role',
secondary='moodle.mdl_role_assignments',
lazy='select')
@property
def token(self):
return generate_jwt_token(self)
@staticmethod
def check_password(password_md5: str, password: str) -> bool:
hashed_password = hashlib.md5(password.encode('utf-8')).hexdigest()
if password_md5 == hashed_password:
return True
return False
class EjudgeProblem(Problem):
"""
Модель задачи из ejudge
ejudge_prid -- primary key, на который ссылается Problem.pr_id.
После инициализации, соответствтующему объекту Problem проставляется корректный pr_id
contest_id --
ejudge_contest_id -- соответствует contest_id из ejudge
secondary_ejudge_contest_id --
problem_id -- соответствует problem_id из ejudge
short_id -- короткий id (обычно буква)
Здесь используется наследование и polymorphic_identity
Это значит, что можно написать
problem_id = Problem.id
query(EjudgeProblem).filter(EjudgeProblem.id == problem_id) # вернет Problem
При этом неявно приджойнится Problem.pr_id == EjudgeProblem.id
Ещё это даёт нам интересные эффекты, например
query(EjudgeProblem).all() вернёт как EjudgeProblem, так и Problem, a
query(EjudgeProblem).filter(EjudgeProblem.id == 6).all() -- только Problem
А вот такое query(EjudgeProblem).get(6) -- вообще вернёт None, потому что join не отработает
Ещё в Runs у нас ссылка на обе таблицы, и это тоже работает нормально
"""
__table_args__ = (
{'schema':'moodle', 'extend_existing': True}
)
__tablename__ = 'mdl_ejudge_problem'
__mapper_args__ = {'polymorphic_identity': 'ejudgeproblem'}
ejudge_prid = db.Column('id', db.Integer, primary_key=True) #global id in ejudge
contest_id = db.Column(db.Integer, primary_key=True, nullable=False, autoincrement=False)
ejudge_contest_id = db.Column(db.Integer, primary_key=True, nullable=False, autoincrement=False)
secondary_ejudge_contest_id = db.Column(db.Integer, nullable=True)
problem_id = db.Column(db.Integer, primary_key=True, nullable=False, autoincrement=False) #id in contest
short_id = db.Column(db.Unicode(50))
ejudge_name = db.Column('name', db.Unicode(255))
@staticmethod
def create(**kwargs):
"""
При создании EjudgeProblem сначала в базу пишет Problem потом EjudgeProblem,
из-за чего pr_id не проставляется
"""
instance = EjudgeProblem(**kwargs)
db.session.add(instance)
db.session.flush([instance])
problem_id = instance.id
ejudge_problem_id = instance.pr_id
db.session.commit()
problem_instance = db.session.query(Problem).filter_by(id=problem_id).one()
problem_instance.pr_id = ejudge_problem_id
db.session.commit()
return db.session.query(EjudgeProblem).filter_by(id=problem_id).one()
@deprecated('view.serializers.ProblemSchema')
def serialize(self):
if self.sample_tests:
self.generate_samples_json(force_update=True)
attrs = [
'id',
'name',
'content',
'timelimit',
'memorylimit',
'show_limits',
'sample_tests_json',
'output_only',
]
problem_dict = {
attr: getattr(self, attr, 'undefined')
for attr in attrs
}
# problem_dict['languages'] = context.get_allowed_languages()
return problem_dict
def get_test(self, test_num, size=255):
conf = EjudgeContestCfg(number=self.ejudge_contest_id)
prob = conf.get_problem(self.problem_id)
test_file_name = (prob.tests_dir + prob.test_pat) % int(test_num)
if os.path.exists(test_file_name):
res = read_file_unknown_encoding(test_file_name, size)
else:
res = test_file_name
return res
def get_corr(self, test_num, size=255):
conf = EjudgeContestCfg(number = self.ejudge_contest_id)
prob = conf.get_problem(self.problem_id)
corr_file_name = (prob.tests_dir + prob.corr_pat) % int(test_num)
if os.path.exists(corr_file_name):
res = read_file_unknown_encoding(corr_file_name, size)
else:
res = corr_file_name
return res
def generate_samples_json(self, force_update=False):
if self.sample_tests != '':
if not self.sample_tests_json:
self.sample_tests_json = {}
for test in self.sample_tests.split(','):
if not force_update and test in self.sample_tests_json:
continue
test_input = self.get_test(test, 4096)
test_correct = self.get_corr(test, 4096)
self.sample_tests_json[test] = {
'input': test_input,
'correct': test_correct,
}
class Statement(CourseModuleInstance, db.Model):
__table_args__ = {'schema': 'moodle'}
__tablename__ = 'mdl_statements'
__mapper_args__ = {
'polymorphic_identity': 'statement',
'concrete': True,
}
MODULE = 19
id = db.Column(db.Integer, primary_key=True)
course_id = db.Column('course', db.Integer,
db.ForeignKey('moodle.mdl_course.id'))
name = db.Column(db.Unicode(255))
summary = db.Column(MEDIUMTEXT)
numbering = db.Column(db.Integer)
disable_printing = db.Column('disableprinting', db.Boolean)
custom_titles = db.Column('customtitles', db.Boolean)
time_created = db.Column('timecreated', db.Integer)
time_modified = db.Column('timemodified', db.Integer)
contest_id = db.Column(db.Integer)
time_start = db.Column('timestart', db.Integer)
time_stop = db.Column('timestop', db.Integer)
olympiad = db.Column(db.Boolean)
virtual_olympiad = db.Column(db.Boolean)
virtual_duration = db.Column(db.Integer)
settings = db.Column(JsonType)
course = db.relationship('Course',
backref=db.backref('statements', lazy='dynamic'))
user = association_proxy('StatementUsers1', 'user')
SETTINGS_SCHEMA = {
'type': 'object',
'properties': {
'allowed_languages': {
'type': 'array',
'uniqueItems': True,
'items': {
'type': 'integer',
'enum': list(LANG_NAME_BY_ID.keys()),
}
},
'type': {
'oneOf': [{
'type': 'null',
}, {
'type': 'string',
'enum': [
'olympiad',
'virtual',
],
}],
},
'group': {
'type': 'integer',
},
'team': {
'type': 'boolean',
},
'time_start': {
'type': 'integer',
},
'time_stop': {
'type': 'integer',
},
'freeze_time': {
'type': 'integer',
},
'standings': {
'type': 'boolean',
},
'test_only_samples': {
'type': 'boolean',
},
'reset_submits_on_start': {
'type': 'boolean',
},
'test_until_fail': {
'type': 'boolean',
},
'start_from_scratch': {
'type': 'boolean',
},
'restrict_view': {
'type': 'boolean',
}
},
'additionalProperties': False,
}
SETTINGS_SCHEMA_VALIDATOR = Draft4Validator(SETTINGS_SCHEMA)
def get_allowed_languages(self):
if not (self.settings and 'allowed_languages' in self.settings):
return None
return self.settings['allowed_languages']
def set_settings(self, settings):
validation_error = next(
self.SETTINGS_SCHEMA_VALIDATOR.iter_errors(settings), None)
if validation_error:
raise ValueError(validation_error.message)
self.settings = settings
if settings.get('time_start'):
self.time_start = settings['time_start']
if settings.get('time_stop'):
self.time_stop = settings['time_stop']
if 'type' in settings:
type_ = settings['type']
if type_ == None:
self.olympiad = False
self.virtual_olympiad = False
elif type_ == 'olympiad':
self.olympiad = True
self.virtual_olympiad = False
else:
self.olympiad = False
self.virtual_olympiad = True
self.time_modified = int(time.time())
def start_participant(
self,
user,
duration,
password=None,
):
if self.course \
and self.course.require_password() \
and password != self.course.password:
raise ValueError()
if self.participants.filter(Participant.user_id == user.id).count():
raise ValueError()
if user.get_active_participant():
raise ValueError()
new_participant = Participant(
user_id=user.id,
statement_id=self.id,
start=int(time.time()),
duration=duration,
)
db.session.add(new_participant)
return new_participant
def finish_participant(self, user):
active_participant = user.get_active_participant()
if not active_participant or active_participant.statement_id != self.id:
raise ValueError()
active_participant.duration = int(time.time() -
active_participant.start)
return active_participant
def start(
self,
user,
password=None,
):
if not self.olympiad:
raise ValueError()
now = time.time()
if now < self.time_start:
raise ValueError()
if now >= self.time_stop:
raise ValueError()
return self.start_participant(
user=user,
duration=self.time_stop - int(time.time()),
password=password,
)
def finish(self, user):
if not self.olympiad:
raise ValueError()
return self.finish_participant(user)
def serialize(self, attributes=None):
if not attributes:
attributes = (
'id',
'name',
'olympiad',
'settings',
'time_start',
'time_stop',
'virtual_olympiad',
'virtual_duration',
'course_module_id',
'course',
'require_password',
)
serialized = attrs_to_dict(self, *attributes)
if 'course' in attributes and self.course:
serialized['course'] = self.course.serialize()
serialized['course_module_id'] = getattr(self.course_module, 'id',
None)
if 'require_password' in attributes:
if self.course:
serialized['require_password'] = self.course.require_password()
else:
serialized['require_password'] = False
user = getattr(g, 'user', None)
if self.olympiad or self.virtual_olympiad:
if not user:
return serialized
try:
participant = self.participants.filter_by(
user_id=user.id).one()
except NoResultFound:
return serialized
serialized['participant'] = participant.serialize()
serialized['problems'] = {
rank: {
'id': statement_problem.problem.id,
'name': statement_problem.problem.name,
}
for rank, statement_problem in self.StatementProblems.items()
if statement_problem.problem and not statement_problem.hidden
}
return serialized
def name(cls):
return db.Column(db.Unicode(255))
