def get_valid_student_email(identifier):
"""
Helper function to get an user email from an identifier and validate it.
In the UI a Coach can enroll users using both an email and an username.
This function takes care of:
- in case the identifier is an username, extracting the user object from
the DB and then the associated email
- validating the email
Arguments:
identifier (str): Username or email of the user to enroll
Returns:
str: A validated email for the user to enroll
Raises:
CCXUserValidationException: if the username is not found or the email
is not valid.
"""
user = email = None
try:
user = get_student_from_identifier(identifier)
except User.DoesNotExist:
email = identifier
else:
email = user.email
try:
validate_email(email)
except ValidationError:
raise CCXUserValidationException(
'Could not find a user with name or email "{0}" '.format(
identifier))
return email
def get_valid_student_with_email(identifier):
"""
Helper function to get an user email from an identifier and validate it.
In the UI a Coach can enroll users using both an email and an username.
This function takes care of:
- in case the identifier is an username, extracting the user object from
the DB and then the associated email
- validating the email
Arguments:
identifier (str): Username or email of the user to enroll
Returns:
(tuple): tuple containing:
email (str): A validated email for the user to enroll.
user (User): A valid User object or None.
Raises:
CCXUserValidationException: if the username is not found or the email
is not valid.
"""
user = email = None
try:
user = get_student_from_identifier(identifier)
except User.DoesNotExist:
email = identifier
else:
email = user.email
try:
validate_email(email)
except ValidationError:
raise CCXUserValidationException(
f'Could not find a user with name or email "{identifier}" ') # lint-amnesty, pylint: disable=raise-missing-from
return email, user
