def __update_student(self):
target_id = MenuUI.get_input_of_type(int, 'ID of student to update: ')
new_name = MenuUI.get_input_of_type(str, 'New name: ')
old_name = self._student_handler.update_attribute(
target_id, 'name', new_name)
UndoManager.add_undo_operation(self._student_handler,
UndoHandler.UPDATE_STUDENT, target_id,
'name', old_name, new_name)
UndoManager.flush_operations()
def __update_discipline(self):
target_id = MenuUI.get_input_of_type(int,
'ID of discipline to update: ')
new_name = MenuUI.get_input_of_type(str, 'New name: ')
old_name = self._discipline_handler.update_attribute(
target_id, 'name', new_name)
UndoManager.add_undo_operation(self._discipline_handler,
UndoHandler.UPDATE_DISCIPLINE,
target_id, 'name', old_name, new_name)
UndoManager.flush_operations()
def __add_discipline(self):
"""
Function that gets called when the user chose to add a discipline.
An ID and a name will be requested, processed by the handler, and then added to the repository
"""
id = MenuUI.get_input_of_type(int, 'ID: ')
name = MenuUI.get_input_of_type(str, 'Discipline name: ')
discipline = self._discipline_handler.add(id, name)
UndoManager.add_undo_operation(self._discipline_handler,
UndoHandler.ADD_DISCIPLNE, discipline)
UndoManager.flush_operations()
def __add_student(self):
"""
Function that gets called when the user chose to add a student.
An ID and a name will be requested, processed by the handler, and then added to the repository
"""
id = MenuUI.get_input_of_type(int, 'ID: ')
name = MenuUI.get_input_of_type(str, 'Student name: ')
student = self._student_handler.add(id, name)
UndoManager.add_undo_operation(self._student_handler,
UndoHandler.ADD_STUDENT, student)
UndoManager.flush_operations()
def __add_grade(self):
"""
Function that gets called when the user chose to add a grade.
A student ID, a discipline ID and a name will be requested, then
processed by the handler, and then added to the repository
"""
discipline_id = MenuUI.get_input_of_type(int, 'Discipline ID: ')
student_id = MenuUI.get_input_of_type(int, 'Student ID: ')
value = MenuUI.get_input_of_type(int, 'Grade value: ')
if not self._student_handler.id_exists(
student_id): # check if the student actually exists
raise Exception('Student ID does not exist')
if not self._discipline_handler.id_exists(
discipline_id): # check if the discipline actually exists
raise Exception('Discipline ID does not exist')
grade = self._grade_handler.add(discipline_id, student_id, value)
UndoManager.add_undo_operation(self._grade_handler,
UndoHandler.ADD_GRADE, grade)
UndoManager.flush_operations()
def __remove_discipline(self):
# remove discipline
discipline_id = MenuUI.get_input_of_type(int,
'Discipline ID to remove: ')
discipline = self._discipline_handler.remove(discipline_id)
# remove all grades at the given discipline
grades = self._grade_handler.remove_from_discipline(discipline_id)
UndoManager.add_undo_operation(self._discipline_handler,
UndoHandler.REMOVE_DISCIPLINE,
discipline)
for grade in grades:
UndoManager.add_undo_operation(self._grade_handler,
UndoHandler.REMOVE_GRADE, grade)
UndoManager.flush_operations()
def __remove_student(self):
# remove student
student_id = MenuUI.get_input_of_type(int, 'Student ID to remove: ')
student = self._student_handler.remove(student_id)
# remove his grades
grades = self._grade_handler.remove_from_student(student_id)
UndoManager.add_undo_operation(
self._student_handler,
UndoHandler.REMOVE_STUDENT,
# student.id, student.name
student)
for grade in grades:
UndoManager.add_undo_operation(self._grade_handler,
UndoHandler.REMOVE_GRADE, grade)
UndoManager.flush_operations()