def removeStudentFromDiscipline(self, discipline, studentID):
'''
removes a student from a discipline
Input: discipline - string, the name of the discipline that the student must be removed from
studentID - positive integer, the ID of the student to remove from the discipline
Output: if such a Grade exists, it is removed and returned
Exceptions: raises GradeException if a Grade with the given discipline and studentID does not exist
'''
indexDisciplineAndStudentID = self.__find(discipline, studentID)
if indexDisciplineAndStudentID == -1:
raise GradeException("There is no student with the ID: " + str(studentID) + " added to discipline: " + discipline + "!")
self.__data.pop(indexDisciplineAndStudentID)
def updateGrade(self, discipline, studentID, grade):
'''
updates a Grade's grade
Input: discipline - string, the name of the discipline that the student must be added to
studentID - positive integer, the ID of the student to add to a discipline
grade - float, 1<= grade <= 10, the grade to be updated
Output: if such a Grade exists, it is updated
Exceptions: raises GradeException if a Grade with the given discipline and studentID does not exist
'''
indexGrade = self.__find(discipline, studentID)
if indexGrade == -1:
raise GradeException("Student with ID " + str(self.__data[indexGrade].getStudentID()) + " must be added first to discipline " + self.__data[indexGrade].getDiscipline() + "!")
self.__data[indexGrade].setGrade(grade)
def addStudentToDiscipline(self, discipline, studentID):
'''
adds a student to a discipline
Input: discipline - string, the name of the discipline that the student must be added to
studentID - positive integer, the ID of the student to add to the discipline
Output: the given Grade is added to the repository, if no other Grade with the same discipline and studentID exists
! the given Grade's grade is initialized with 0
Exceptions: raises GradeException if another Grade with the same discipline and studentID already exists
'''
if self.findByDisciplineAndStudentID(discipline, studentID) != None:
raise GradeException("Student with ID " + str(studentID) + " already added to discipline " + discipline + "!")
gra = Grade(discipline, studentID, 0)
self.__data.append(gra)
def removeGrade(self, disID, stuID):
'''
removes a grade with the given student ID and discipline ID
Input: disID - positive integer, the ID of the grade's discipline to be removed
stuID - positive integer, the ID of the grade's student to be removed
Output: if such a Grade exists, it is removed and returned
Exceptions: raises GradeException if a Grade with the given disID and stuID does not exist
'''
indexDisciplineIDandStudentID = self.__find(disID, stuID)
if indexDisciplineIDandStudentID == -1:
raise GradeException("There is no grade with the student ID: " +
str(stuID) + " and discipline ID: " +
str(disID) + "!")
self.__data.pop(indexDisciplineIDandStudentID)
def addGrade(self, gra, sturepo, disrepo):
'''
adds a grade to the grade repository
Input: gra - object type of grade
Output: the given grade is added to the repository, if the studentID and disciplineID of the grade exists
Exception: the disID or the stuID does not exist
'''
if disrepo.findBydID(
gra.getDisciplineID()) != None and sturepo.findBysID(
gra.getStudentID()) != None:
self.__data.append(gra)
else:
#print(sturepo.findBysID(gra.getStudentID()))
raise GradeException("Student with ID: " +
str(gra.getStudentID()) +
" or the discipline with ID: " +
str(gra.getDisciplineID()) +
" does not exist!")