def activate(activationId, dbInstance):
response = ControllerResponse()
table = dbUtils.getTable('users', dbInstance)
items = []
if table is None:
MentiiLogging.getLogger().error('Unable to get table users in activate')
response.addError('Could not access table. Error', 'The DB did not give us the table')
return response
#Scan for the email associated with this activationId
scanResponse = dbUtils.scanFilter('activationId', activationId, table)
if scanResponse is not None:
#scanResponse is a dictionary that has a list of 'Items'
items = scanResponse['Items']
if not items or 'email' not in items[0].keys():
response.addError('No user with activationid', 'The DB did not return a user with the passed in activationId')
else:
email = items[0]['email']
jsonData = {
'Key': {'email': email},
'UpdateExpression': 'SET active = :a',
'ExpressionAttributeValues': { ':a': 'T' },
'ReturnValues' : 'UPDATED_NEW'
}
#Update using the email we have
res = dbUtils.updateItem(jsonData, table)
response.addToPayload('status', 'Success')
return response
def createClass(dynamoDBInstance, classData, email=None, userRole=None):
response = ControllerResponse()
#g will be not be available during testing
#and email and userRole will need to be passed to the function
if g: # pragma: no cover
email = g.authenticatedUser['email']
userRole = g.authenticatedUser['userRole']
#role is confirmed here incase createClass is called from somewhere other
#than app.py create_class()
if userRole != 'teacher' and userRole != 'admin':
response.addError('Role error', 'Only teachers can create classes')
elif classData is None or not checkClassDataValid(classData):
response.addError('createClass call Failed.',
'Invalid class data given.')
else:
classTable = dbUtils.getTable('classes', dynamoDBInstance)
userTable = dbUtils.getTable('users', dynamoDBInstance)
if classTable is None or userTable is None:
response.addError('createClass call Failed.',
'Unable to locate necessary table(s).')
else:
classCode = str(uuid.uuid4())
newClass = {
'code': classCode,
'title': classData['title'],
'description': classData['description']
}
if 'department' in classData.keys() and classData['department']:
newClass['department'] = classData['department']
if 'section' in classData.keys() and classData['section']:
newClass['classSection'] = classData['section']
result = dbUtils.putItem(newClass, classTable)
if result is None:
response.addError('createClass call Failed.',
'Unable to create class in classes table.')
else:
# Note: if teaching attribute does not previously exist, a set of class codes will be created
# otherwise, the class code will be added to the set of class codes
codeSet = set([classCode])
jsonData = {
'Key': {
'email': email
},
'UpdateExpression': 'ADD teaching :classCode',
'ExpressionAttributeValues': {
':classCode': codeSet
},
'ReturnValues': 'UPDATED_NEW'
}
res = dbUtils.updateItem(jsonData, userTable)
if res is None:
response.addError('createClass call failed',
'Unable to update user data')
else:
response.addToPayload('Success', 'Class Created')
return response
def updateUserTemplateHistory(classId, activity, userId, index, didSucceed,
dynamoDBInstance):
#Get the section so we can update the weights
response = ControllerResponse()
bookId, chapterTitle, sectionTitle = getBookInfoFromActivity(
classId, activity, dynamoDBInstance)
section = book_ctrl.getSectionFromBook(bookId, chapterTitle, sectionTitle,
dynamoDBInstance)
#Update the weights or create new ones if this is the first time
currentWeights = section.get('users', {}).get(userId, [])
newWeights = [0 for _ in xrange(len(section.get('problems', [])))
] #Initial value
if len(currentWeights) != 0: #Update if we can
newWeights = currentWeights
#Actually update the weights
if index < len(newWeights):
if didSucceed:
newWeights[index] += 1
else:
newWeights[index] -= 1
#Send it elsewhere to update the database
updateSuccessful = book_ctrl.updateBookWithUserData(
bookId, chapterTitle, sectionTitle, userId, newWeights,
dynamoDBInstance)
if not updateSuccessful:
response.addError('History Update Error',
'Unable to update the users history')
return response
def addActivity(classCode, jsonData, dynamodb, email=None, userRole=None):
response = ControllerResponse()
classTable = dbUtils.getTable('classes', dynamodb)
if classTable is None:
MentiiLogging.getLogger().error(
'Unable to get classes table in getPublicClassList')
response.addError('Failed to add activity', 'A database error occured')
else:
if g: # pragma: no cover
email = g.authenticatedUser['email']
userRole = g.authenticatedUser['userRole']
if isTeacherOfClass(email, userRole, classCode, dynamodb):
classData = getClassByCode(classCode, dynamodb)
if not classData:
response.addError('Failed to add activity',
'A database error occured')
else:
activities = classData.get('activities', [])
activities.append(jsonData)
classData['activities'] = activities
result = dbUtils.putItem(classData, classTable)
if result is None:
response.addError('Failed to add activity',
'A database error occured')
else:
response.addToPayload('Success', 'Activity Added')
else:
MentiiLogging.getLogger().error(
email + ' is not the teacher of ' + classCode +
', but attempted to add an activity.')
response.addError('Unable to add activity',
'A permissions error occured')
return response
def leaveClass(jsonData, dynamoDBInstance, email=None):
response = ControllerResponse()
data = None
if g: # pragma: no cover
email = g.authenticatedUser['email']
if 'code' not in jsonData.keys() or not jsonData['code']:
response.addError('Key Missing Error', 'class code missing from data')
else:
classCode = jsonData['code']
data = {
'email': email,
'classCode': classCode
}
return class_ctrl.removeStudent(dynamoDBInstance, data, response=response, userRole=None)
def resetUserPassword(jsonData, dbInstance):
response = ControllerResponse()
email = jsonData.get('email', None)
password = jsonData.get('password', None)
resetPasswordId = jsonData.get('id', None)
if email is not None and password is not None and resetPasswordId is not None:
res = updatePasswordForEmailAndResetId(email, password, resetPasswordId, dbInstance)
if res is not None:
response.addToPayload('status', 'Success')
else:
response.addError('Failed to Reset Password', 'We were unable to update the password for this account.')
else:
response.addError('Failed to Reset Password', 'We were unable to update the password for this account.')
return response
def changeUserRole(jsonData, dbInstance, adminRole=None):
response = ControllerResponse()
#g will be not be available during testing
#and adminRole will need to be passed to the function
if g: # pragma: no cover
adminRole = g.authenticatedUser['userRole']
#adminRole is confirmed here incase changeUserRole is called from somewhere
#other than app.py changeUserRole()
if adminRole != 'admin':
response.addError('Role Error', 'Only admins can change user roles')
elif 'email' not in jsonData.keys() or 'userRole' not in jsonData.keys():
response.addError('Key Missing Error', 'Email or role missing from json data')
else:
email = jsonData['email']
userRole = jsonData['userRole']
userTable = dbUtils.getTable('users', dbInstance)
if userTable is None:
MentiiLogging.getLogger().error('Unable to get table "users" in changeUserRole')
response.addError('No Access to Data', 'Unable to get data from database')
else:
if userRole != 'student' and userRole != 'teacher' and userRole != 'admin':
MentiiLogging.getLogger().error('Invalid role: ' + userRole + ' specified. Unable to change user role')
response.addError('Invalid Role Type', 'Invaid role specified')
else:
data = {
'Key': {'email': email},
'UpdateExpression': 'SET userRole = :ur',
'ExpressionAttributeValues': { ':ur': userRole },
'ReturnValues' : 'UPDATED_NEW'
}
result = dbUtils.updateItem(data, userTable)
if result is None:
MentiiLogging.getLogger().error('Unable to update the user with email: ' + email + ' in changeUserRole')
response.addError('Result Update Error', 'Could not update the user role in database')
else:
response.addToPayload('Result:', result)
response.addToPayload('success', 'true')
return response
def getPublicClassList(dynamodb, email=None):
response = ControllerResponse()
classCodes = getClassCodesFromUser(dynamodb, email)
classes = []
classesTable = dbUtils.getTable('classes', dynamodb)
if classesTable is None:
MentiiLogging.getLogger().error(
'Unable to get classes table in getPublicClassList')
response.addError('Failed to get class list',
'A database error occured')
else:
res = classesTable.scan()
for pclass in res.get('Items', []):
if pclass[
'code'] not in classCodes and 'private' not in pclass and pclass.get(
'private') != True:
classes.append(pclass)
response.addToPayload('classes', classes)
return response
def getProblemTree(problemTemplate):
#When problem templates work problem could
# be a problem template instead. If that's the case
# we could get the problem from the template here
response = ControllerResponse()
numberOfFailurePoints = 2 #TODO: Replace this with the recommender system output
problem = getProblem(problemTemplate)
problemPath = mathsteps.getStepsForProblem(problem)
if len(problemPath) <= 1:
#We couldn't get a path for the problem
response.addError(
'Problem Solve Error',
'Could not generate path for problem {0}'.format(problem))
else:
problemTree = generateTreeWithBadSteps(problemPath,
numberOfFailurePoints)
response.addToPayload('problemTree', problemTree)
return response
def getBookList(dynamoDBInstance):
response = ControllerResponse()
booksTable = dbUtils.getTable('books', dynamoDBInstance)
if booksTable is None:
MentiiLogging.getLogger().error('Could not get book table')
response.addError('Failed to get book list',
'A database error occured')
else:
books = dbUtils.scan(booksTable)
bookList = []
if books is not None and 'Items' in books:
for book in books.get('Items'):
bookList.append({
'id': book.get('bookId'),
'title': book.get('title')
})
response.addToPayload('books', bookList)
else:
MentiiLogging.getLogger().warning('Could not scan books table')
return response
def joinClass(jsonData, dynamoDBInstance, email=None, userRole=None):
response = ControllerResponse()
#g will be not be available during testing
#and email will need to be passed to the function
if g: # pragma: no cover
email = g.authenticatedUser['email']
userRole = g.authenticatedUser['userRole']
if 'code' not in jsonData.keys() or not jsonData['code']:
response.addError('Key Missing Error', 'class code missing from data')
elif userRole == 'teacher' or userRole == 'admin':
if class_ctrl.isCodeInTaughtList(jsonData, dynamoDBInstance, email):
response.addError('Role Error', 'Teachers cannot join their taught class as a student')
else:
classCode = jsonData['code']
addDataToClassAndUser(classCode, email, response, dynamoDBInstance)
else:
classCode = jsonData['code']
addDataToClassAndUser(classCode, email, response, dynamoDBInstance)
return response
def getTaughtClassList(dynamoDBInstance, email=None):
response = ControllerResponse()
if email is None: # pragma: no cover
email = g.authenticatedUser['email']
usersTable = dbUtils.getTable('users', dynamoDBInstance)
classTable = dbUtils.getTable('classes', dynamoDBInstance)
if usersTable is None or classTable is None:
response.addError('Get Taught Class List Failed',
'Unable to access users and/or classes')
else:
classes = []
classCodes = getTaughtClassCodesFromUser(dynamoDBInstance, email)
if classCodes is not None:
for code in classCodes:
request = {'Key': {'code': code}}
res = dbUtils.getItem(request, classTable)
if res is not None and 'Item' in res:
classes.append(res['Item'])
response.addToPayload('classes', classes)
return response
def getClass(classCode, dynamoDBInstance, email=None, userRole=None):
response = ControllerResponse()
classData = getClassByCode(classCode, dynamoDBInstance)
if not classData:
response.addError('Get Class Failed', 'Unable to load class data')
else:
if g: # pragma: no cover
email = g.authenticatedUser['email']
userRole = g.authenticatedUser['userRole']
#Checks that user is the teacher of the class w/ classCode
if ((userRole == 'teacher' or userRole == 'admin')
and classCode in getTaughtClassCodesFromUser(
dynamoDBInstance, email)):
classData['isTeacher'] = True
#Else remove students[] from classData, if it exists, because:
#Only the teacher of a class can get the class's students
elif 'students' in classData:
if email in classData.get('students', []):
classData['isStudent'] = True
del classData['students']
response.addToPayload('class', classData)
return response
def register(httpOrigin, jsonData, mailer, dbInstance):
response = ControllerResponse()
if not validateRegistrationJSON(jsonData):
response.addError('Register Validation Error', 'The json data did not have an email or did not have a password')
else:
email = parseEmail(jsonData)
password = parsePassword(jsonData)
if not isEmailValid(email):
response.addError('Email invalid', 'The email is invalid')
if not isPasswordValid(password):
response.addError('Password Invalid', 'The password is invalid')
if isEmailInSystem(email, dbInstance) and isUserActive(getUserByEmail(email, dbInstance)):
response.addError('Registration Failed', 'We were unable to register this user')
if not response.hasErrors():
hashedPassword = hashPassword(parsePassword(jsonData))
activationId = addUserAndSendEmail(httpOrigin, email, hashedPassword, mailer, dbInstance)
if activationId is None:
response.addError('Activation Id is None', 'Could not create an activation Id')
return response
def removeStudent(dynamoDBInstance, jsonData, response=None, userRole=None):
currentUserEmail = None
if response is None:
response = ControllerResponse()
email = jsonData.get('email')
classCode = jsonData.get('classCode')
if g:
userRole = g.authenticatedUser['userRole']
currentUserEmail = g.authenticatedUser['email']
if not (userRole == 'teacher' or userRole == 'admin'
or currentUserEmail == email):
response.addError(
'Role error',
'Only those with teacher privileges can remove students from classes'
)
elif email is None or classCode is None:
response.addError('Failed to remove student from class',
'Invalid data given')
else:
removeClassFromStudent(dynamoDBInstance, response, email, classCode)
if not response.hasErrors():
removeStudentFromClass(dynamoDBInstance, response, email,
classCode)
return response
def createBook(bookData, dynamoDBInstance, userRole=None):
response = ControllerResponse()
#g will be not be available during testing
#userRole will need to be passed to the function
if g: # pragma: no cover
userRole = g.authenticatedUser['userRole']
#role is confirmed here incase createBook is called from somewhere other
#than app.py createBook()
if userRole != 'admin':
response.addError('Role error', 'Only admins can create books')
# check for required options
elif 'title' not in bookData.keys() or 'description' not in bookData.keys(
):
response.addError('Book creation failed.', 'Invalid book data given.')
else:
# Get books table
booksTable = dbUtils.getTable('books', dynamoDBInstance)
if booksTable is None:
response.addError('Get Books Table Failed',
'Unable to get books table from database')
else:
bookId = str(uuid.uuid4())
# prep json data
book = {
'bookId': bookId,
'title': bookData['title'],
'description': bookData['description'],
'chapters': bookData.get('chapters', [])
}
# put item into table
result = dbUtils.putItem(book, booksTable)
if result is None:
response.addError('Book creation failed.',
'Unable to create Book in database.')
else:
response.addToPayload('Success', 'Book Created')
return response
def editBook(bookData, dynamoDBInstance):
response = ControllerResponse()
# check for required options
if not bookData or 'title' not in bookData.keys(
) or 'description' not in bookData.keys() or 'bookId' not in bookData.keys(
):
response.addError('Book update failed.', 'Invalid book data given.')
else:
# Get books table
booksTable = dbUtils.getTable('books', dynamoDBInstance)
if booksTable is None:
response.addError('Get Books Table Failed',
'Unable to get books table from database')
else:
# put item into table
result = dbUtils.putItem(bookData, booksTable)
if result is None:
response.addError('Book update failed.',
'Unable to update Book in database.')
else:
response.addToPayload('Success', 'Book Updated')
return response
def updateClassDetails(jsonData, dynamodb, email=None, userRole=None):
response = ControllerResponse()
classesTable = dbUtils.getTable('classes', dynamodb)
if classesTable is None:
MentiiLogging.getLogger().error(
'Unable to get classes table in getPublicClassList')
response.addError('Failed to get class list',
'A database error occured')
else:
# get data from request body
code = jsonData.get('code')
title = jsonData.get('title')
desc = jsonData.get('description')
dept = jsonData.get('department') # optional
sec = jsonData.get('section') # optional
if g: # pragma: no cover
email = g.authenticatedUser['email']
userRole = g.authenticatedUser['userRole']
#check if teacher is teacher of the class
if ((userRole == 'teacher' or userRole == 'admin')
and code in getTaughtClassCodesFromUser(dynamodb, email)):
updateExprString = 'SET title =:t, description =:dn'
expresionAttrDict = {':t': title, ':dn': desc}
removeString = ''
# if empty string is given, remove the attribute
if dept == '' and sec == '':
removeString = removeString + ' REMOVE department, classSection'
else:
if dept == '':
removeString = removeString + ' REMOVE department'
else:
updateExprString = updateExprString + ', department = :dt'
expresionAttrDict[':dt'] = dept
if sec == '':
removeString = removeString + ' REMOVE classSection'
else:
updateExprString = updateExprString + ', classSection = :s'
expresionAttrDict[':s'] = sec
updateExprString = updateExprString + removeString
# update item
updateData = {
'Key': {
'code': code
},
'UpdateExpression': updateExprString,
'ExpressionAttributeValues': expresionAttrDict,
'ReturnValues': 'UPDATED_NEW'
}
res = dbUtils.updateItem(updateData, classesTable)
if res is None:
response.addError('updateClassDetails has error',
'Unable to update class details')
else:
response.addToPayload('Success', 'Class Details Updated')
else:
response.addError('Teacher permissions incorrect',
'Unable to update class details')
return response