def __readAssignments(self):
'''
Class method to read the assignments from the text file
and return a list of elements of their type.
'''
file = open(self.__fileName, "r")
content = file.readlines()
assignments = IterableStructure()
for line in content:
line.strip()
line = line.replace('\n', '')
line = line.split(';')
assignments.append(Assignment(int(line[0]), line[1], line[2]))
file.close()
return assignments
def __readStudents(self):
'''
Class method to read the students from a file.
This method will form a list of objects of type Student and return it.
'''
file = open(self.__fileName, "r")
content = file.readlines()
students = IterableStructure()
for line in content:
line.strip()
line = line.replace('\n', '')
line = line.split(';')
students.append(Student(int(line[0]), line[1], line[2]))
file.close()
return students
def __readGrades(self):
'''
Class method that reads the grades from the text file
'''
file = open(self.__fileName, "r")
content = file.readlines()
grades = IterableStructure()
for line in content:
line.strip()
line = line.replace('\n', '')
line = line.split(';')
student = self.__fileRepoStudents.searchByID(int(line[1]))
assignment = self.__fileRepoAssignments.searchByID(int(line[0]))
grades.append(Grade(assignment, student, float(line[2])))
file.close()
return grades
class RepoGrades(object):
'''
Class for the grades repository
'''
def __init__(self):
'''
class init for the repository
'''
self.__grades = IterableStructure()
def __len__(self):
'''
returns the length (number of grades) of grades
'''
return len(self.__grades)
def add(self, element):
'''
class function for adding an element into the repository
in - element - element to be added
out: -
raises: RepoError if the element already exists
'''
if element in self.__grades:
raise RepoError("Element already exists!")
self.__grades.append(element)
def search(self, element):
'''
class function to search for an element in grades
in - element - element which is being searched
out: element if it's found
raises: RepoError otherwise, if the element doesn't exist
'''
if element not in self.__grades:
raise RepoError("Element doesn't exist!")
for grades in self.__grades:
if element == grades:
return element
def update(self, element):
'''
class function to update an element in grades
in: element- element which is being updated
out: NoneType if that happens
raises: RepoError otherwise, if it doesn't exist
'''
if element not in self.__grades:
raise RepoError("Element doesn't exist!")
for i in range(len(self.__grades)):
if self.__grades[i] == element:
self.__grades[i] = element
return
def remove(self, element):
'''
class function to remove an element from grades
in : element- element which is being deleted
out- NoneType if that happens
raises: RepoError otherwise, if it doesn't exist
'''
if element not in self.__grades:
raise RepoError("Element doesn't exist!")
for i in range(len(self.__grades)):
if self.__grades[i] == element:
del self.__grades[i]
return
def removeStudentID(self, studentID):
'''
Class function to remove the element with the student id = studentID from the grades repository
'''
for i in range(len(self.__grades)):
if self.__grades[i].getStudentID() == studentID:
del self.__grades[i]
return
def removeAssignmentID(self, assignmentID):
'''
Class function to remove the element with the assignment id = assignmentID from the grades repository
'''
for i in range(len(self.__grades)):
if self.__grades[i].getAssignmentID() == assignmentID:
del self.__grades[i]
return
def getAll(self):
'''
class function to get all the grades
'''
returnList = []
for i in range(0, len(self.__grades)):
returnList.append(self.__grades[i])
return returnList[:]
class RepoStudents(object):
'''
Class for the student repository
'''
def __init__(self):
'''
class init for the repository
'''
self.__students = IterableStructure()
def __len__(self):
'''
returns the length (number of students) of students
'''
return len(self.__students)
def add(self, element):
'''
class function for adding an element into the repository
in - element - element to be added
out: -
raises: RepoError if the element already exists
'''
if element in self.__students:
raise RepoError("Element already exists!")
self.__students.append(element)
def searchByID(self, id):
'''
class function to search for an element in students
in - element - element which is being searched
out: element if it's found
raises: RepoError otherwise, if the element doesn't exist
'''
for students in self.__students:
if students.getID() == id:
return students
raise RepoError("ELement doesnt exist!")
def update(self, element):
'''
class function to update an element in students
in: element- element which is being updated
out: NoneType if that happens
raises: RepoError otherwise, if it doesn't exist
'''
if element not in self.__students:
raise RepoError("Element doesn't exist!")
for i in range(len(self.__students)):
if self.__students[i] == element:
self.__students[i] = element
return
def remove(self, element):
'''
class function to remove an element from students
in : element- element which is being deleted
out- NoneType if that happens
raises: RepoError otherwise, if it doesn't exist
'''
if element not in self.__students:
raise RepoError("Element doesn't exist!")
for i in range(len(self.__students)):
if self.__students[i] == element:
del self.__students[i]
return
def getAll(self):
'''
class function to get all the students
'''
returnList = []
for i in range(0, len(self.__students)):
returnList.append(self.__students[i])
return returnList[:]