University Registration System

This project is built using python to register or unregister a student to a course in which Linked list data structure is implemented.

Data Structures Used:

Below are examples the data used:

colleges = [{"id": 1, "name": "Agriculture" }, { "id": 2, "name": "Medicine" }]

departments = [{"id":1,"name":"dept1","collegeId":1},{"id":2,"name":"dept2","collegeId":1}]

courses = [{"id": 1,"name": "crs 1","departmentId": 1, "firstNode": None},   {"id": 2,"name": "crs 2",     "departmentId": 1   , "firstNode": None}]

students = [{"id": 1,"name": "Sophia Alvarez","departmentId": 1 , "firstNode": None},   {     "id": 2,     "name": "Jerry Powell",     "departmentId": 1   , "firstNode": None}]

and below is the Node used for registration:

Other values are as college Id, Department Id, grade

UML Diagram:

Folder Structure:

---

UI.ipynb	The file that the user deal with within JupyterLab
registrationNode.py	The node class
registrationLL.py	The Linked List class having the following functions: length getting the total number of registrations addNewRegistration add new Registration having the following inputs: student dictionary, college Id, department Id, course dictionary getRegisteredStudentsInCourse get list & count of students registered in a course given the following inputs: course dictionary, course Id, list of students, instance of the helper class getCoursesRegisteredByStudent get list & count of courses registered by a student given the following inputs: student dictionary, student Id, list of courses, instance of the helper class deleteRegistration delete a registration of a student in a course
Helper.py	A class having functions to help in logic; it is used from UI.ipynb to call functions in registrationLL.py getDataById get any of the data; colleges, departments, students or courses by passing its list and the id to search for getAllItemsOfData Print all elements of a data list isInputsValid validate the student Id and Course Id given addNewRegister add new register for a student in a course by passing student Id & course Id getAllRegistrationsDone get total # of registrations getRegisteredStudentsInCourse get list & count of students registered in a course getCoursesRegisteredByStudent get list & count of courses registered by a student deleteRegistration delete a registration of a student in a course

Algorithms Used:

Here is the algorithm made to add a new registration of a student in a course:

And below is the algorithm used to get the registered students in a course (getting the courses registered by a student uses same algorithm with only different inputs and variables)

And the delete registration algorithm:

Use Cases:

Assume having the below registrations: rows are students, cols are courses

_	1	2	3	4	5	6	7
1	*	*	*
2	*			*	*		*
3		*	*		*	*
4		*		*		*	*
5			*	*		*	*

---

First importing that Helper class

from helper import Helper

creating an instance of the Helper Class

helper = Helper(colleges, departments, students, courses)

To add registration e.g: passing student Id, Course Id

helper.addNewRegister(1, 2)

to get total # of registrations:

helper.getAllRegistrationsDone()

To get list & count of students registered in a course: passing course Id

helper.getRegisteredStudentsInCourse(5) 

To get list & count of courses registered by a student: passing student Id

helper.getCoursesRegisteredByStudent(7)

To delete a registration: passing student Id, Course Id

helper.deleteRegistration(3, 3)

Screen shots: