class Condition(db.Model):
"""
An experimental condition, i.e. the variable conditions of a trial
Attributes
----------
id : int
Primary key
test_id : int, optional
Foreign key to the Test the condition belongs to
group_id : int, optional
data : str
JSON-enconded string of formatted condition variables
"""
id = db.Column(db.Integer, primary_key=True)
test_id = db.Column(db.Integer, db.ForeignKey('test.id'))
group_id = db.Column(db.Integer, db.ForeignKey('group.id'))
data = db.Column(db.Text)
trials = db.relationship('Trial', backref='condition', lazy='dynamic')
def __init__(self, data, test_id=None, group_id=None):
self.data = data
self.test_id = test_id
self.group_id = group_id
def __repr__(self):
return "<Condition id=%r, test_id=%r, group_id=%r, data=%r>" % (
self.id, self.test_id, self.group_id, self.data)
class Group(db.Model):
"""
A group of conditions. For MUSHRA this is typically the same as the condition itself, but for pairwise these is the
group of conditions that containing stimuli make up the set of stimuli of a MUSHRA trial. Note that the evaluation
software currently only supports one group per evaluation--therefore when configuring the test, make sure that an
integer multiple of `CONDITIONS_PER_EVALUATION` comprises the number of conditions per group.
Attributes
----------
id : int
Primary key
data : str
JSON-encoded string of formatted group condition variables (like shared references and stimuli)
"""
id = db.Column(db.Integer, primary_key=True)
data = db.Column(db.Text)
conditions = db.relationship('Condition', backref='group', lazy='dynamic')
def __repr__(self):
return "<Group id=%r,data=%r>" % (self.id, self.data)
class Test(db.Model):
"""
An experimental test. Many conditions may share these properties.
Attributes
----------
id: int
Primary key
data: str
JSON-encoded string of formatted test variables
"""
id = db.Column(db.Integer, primary_key=True)
data = db.Column(db.Text)
conditions = db.relationship('Condition', backref='test', lazy='dynamic')
def __init__(self, data):
self.data = data
def __repr__(self):
return "<Test id=%r, data=%r>" % (self.id, self.data)
class Participant(db.Model):
"""
A participant in an experiment
Attributes
----------
id : int
Primary key
ip_address : str
The IP address of the participant
crowd_worker_id : str
The crowdsourcing site ID, e.g. Amazon MTurk's workerId
platform : str
The platform the participant came from, e.g. ANONYMOUS, M_TURK, etc.
passed_hearing_test : bool
The user has passed the hearing test
gave_consent : bool
Participant agreed to the consent form.
hearing_test_attempts : int
The number of hearing_test_attempts
hearing_test_last_attempt : DateTime
The DateTime of the last hearing test attempt (pass or fail)
pre_test_survey : str
Pre-test survey data in JSON
post_test_survey : str
Post-test survey data in JSON
hearing_response_estimation : str
Hearing response estimation data in JSON
"""
id = db.Column(db.Integer, primary_key=True)
ip_address = db.Column(db.String(45))
crowd_worker_id = db.Column(db.String(256), unique=True)
platform = db.Column(db.String(128))
passed_hearing_test = db.Column(db.Boolean, default=False)
gave_consent = db.Column(db.Boolean, default=False)
hearing_test_attempts = db.Column(db.Integer, default=0)
hearing_test_last_attempt = db.Column(db.DateTime,
default=datetime.datetime(1, 1, 1))
pre_test_survey = db.Column(db.Text, default=None)
post_test_survey = db.Column(db.Text, default=None)
hearing_response_estimation = db.Column(db.Text, default=None)
trials = db.relationship('Trial', backref='participant', lazy='dynamic')
def __init__(self, platform, crowd_worker_id=None, ip_address=None):
self.platform = platform
if crowd_worker_id is None or crowd_worker_id == 'ANONYMOUS':
self.crowd_worker_id = uuid.uuid4().hex
else:
self.crowd_worker_id = crowd_worker_id
if app.config['IP_COLLECTION_ENABLED']:
self.ip_address = ip_address
def __repr__(self):
return "<Participant id=%r, platform=%r, crowd_worker_id=%r>" % (
self.id, self.platform, self.crowd_worker_id)
def has_passed_hearing_test_recently(self):
"""
Check to see if participant has passed the hearing test recently (as defined in settings.py)
Returns
-------
bool
"""
if (datetime.datetime.now() - self.hearing_test_last_attempt) \
>= datetime.timedelta(hours=app.config['HEARING_TEST_EXPIRATION_HOURS']):
self.passed_hearing_test = False
self.hearing_test_attempts = 0
# regardless of HEARING_TEST_REJECTION_ENABLED or not, if they haven't taken the test recently, have
# them take it again
return self.passed_hearing_test
else:
# regardless if they have taken the test recently, if HEARING_TEST_REJECTION_ENABLED is False, let them
# through
return self.passed_hearing_test or not app.config[
'HEARING_TEST_REJECTION_ENABLED']
def set_passed_hearing_test(self, passed_hearing_test):
"""
Mark them as having passed the hearing test
Parameters
----------
passed_hearing_test : bool
Returns
-------
None
"""
self.hearing_test_last_attempt = datetime.datetime.now()
self.hearing_test_attempts += 1
self.passed_hearing_test = passed_hearing_test