def load_user(username, passwordhash):
"""Load a user based on the passwordhash; if the passwordhash doesn't match
the username, then this should return None."""
client = _get_client()
q = client.query(kind=_USER_ENTITY)
q.add_filter('username', '=', username)
q.add_filter('passwordhash', '=', passwordhash)
for user in q.fetch():
return lmsdata.User(user['username'], user['email'], user['about'])
return None
def register_user():
username = flask.request.form.get('username')
password1 = flask.request.form.get('password1')
password2 = flask.request.form.get('password2')
email = flask.request.form.get('email')
errors = []
if password1 != password2:
errors.append('Passwords do not match.')
email_parts = parseaddr(email)
if len(email_parts) != 2 or not email_parts[1]:
errors.append('Invalid email address: ' + str(email))
user = lmsdata.User(username, email)
if errors:
return show_page('/signup.html', 'Sign Up', errors=errors)
else:
passwordhash = get_password_hash(password1)
lmsdatastore.save_user(user, passwordhash)
flask.session['user'] = user.username
return flask.redirect('/courses')
def load_user(
username, passwordhash
): # note: index.yaml and our User object do not contain passwordhash (it's only in datastore)
"""Load a user based on the passwordhash; if the passwordhash doesn't match
the username, then this should return None."""
client = _get_client() # get the datastore client
q = client.query(
kind=_USER_ENTITY) # prep a query that looks at user entities
# .add_filter('<property>', '<operator>', <value>)
# Filter the query based on a property name, operator and a value.
# Documentation: https://googleapis.dev/python/datastore/latest/queries.html#google.cloud.datastore.query.Query.add_filter
q.add_filter('username', '=', username) # must equal un
q.add_filter('passwordhash', '=', passwordhash) # must equal pwhash
for user in q.fetch(): # fetch the information on the user
# get the information from the datastore (accessing as one accesses a dictionary)
# use that information as a parameter to insert in our python User object
# return object
return lmsdata.User(user['username'], user['email'], user['about'])
return None # if info doesn't exist return None