Learning Process Implementation in LMS

To implement the learning process feature where progress is tracked and displayed, you will indeed need to store this information in a database. Here's a guide on how to design this feature using MySQL:

Database Design

Tables:
- users: Stores user information.
- courses: Stores course information.
- sections: Stores sections information within courses.
- lessons: Stores lesson information within sections.
- user_course_progress: Tracks the progress of users in each course.

Table Structure

users

CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(255) NOT NULL,
    email VARCHAR(255) NOT NULL,
    password VARCHAR(255) NOT NULL
);

courses

CREATE TABLE courses (
    id INT AUTO_INCREMENT PRIMARY KEY,
    title VARCHAR(255) NOT NULL,
    description TEXT
);

sections

CREATE TABLE sections (
    id INT AUTO_INCREMENT PRIMARY KEY,
    course_id INT NOT NULL,
    title VARCHAR(255) NOT NULL,
    FOREIGN KEY (course_id) REFERENCES courses(id)
);

lessons

CREATE TABLE lessons (
    id INT AUTO_INCREMENT PRIMARY KEY,
    section_id INT NOT NULL,
    title VARCHAR(255) NOT NULL,
    content TEXT,
    FOREIGN KEY (section_id) REFERENCES sections(id)
);

user_course_progress

CREATE TABLE user_course_progress (
    id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT NOT NULL,
    course_id INT NOT NULL,
    lesson_id INT NOT NULL,
    completed BOOLEAN NOT NULL DEFAULT FALSE,
    completion_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id),
    FOREIGN KEY (course_id) REFERENCES courses(id),
    FOREIGN KEY (lesson_id) REFERENCES lessons(id)
);

Implementation Steps

Track Lesson Completion:
- When a user completes a lesson, insert or update a record in the user_course_progress table to mark the lesson as completed.

INSERT INTO user_course_progress (user_id, course_id, lesson_id, completed)
VALUES (user_id_value, course_id_value, lesson_id_value, TRUE)
ON DUPLICATE KEY UPDATE completed = TRUE, completion_date = CURRENT_TIMESTAMP;

Calculate Course Progress:
- To calculate the progress of a user in a course, you can use a query to count the completed lessons and divide by the total number of lessons in the course.

SELECT 
    COUNT(*) as completed_lessons
FROM 
    user_course_progress 
WHERE 
    user_id = user_id_value 
    AND course_id = course_id_value 
    AND completed = TRUE;

SELECT 
    COUNT(*) as total_lessons
FROM 
    lessons 
WHERE 
    section_id IN (SELECT id FROM sections WHERE course_id = course_id_value);

Calculate the percentage completion in your application logic.

Display Progress:
- Fetch the progress data for the user and display it on the learning panel.

SELECT 
    l.id as lesson_id,
    l.title as lesson_title,
    ucp.completed as lesson_completed
FROM 
    lessons l
LEFT JOIN 
    user_course_progress ucp 
    ON l.id = ucp.lesson_id 
    AND ucp.user_id = user_id_value
WHERE 
    l.section_id IN (SELECT id FROM sections WHERE course_id = course_id_value);

Example Application Logic (Pseudo-Code)

def get_course_progress(user_id, course_id):
    completed_lessons = query_database(f"""
        SELECT COUNT(*) as completed_lessons
        FROM user_course_progress 
        WHERE user_id = {user_id} 
        AND course_id = {course_id} 
        AND completed = TRUE;
    """)
    
    total_lessons = query_database(f"""
        SELECT COUNT(*) as total_lessons
        FROM lessons 
        WHERE section_id IN (SELECT id FROM sections WHERE course_id = {course_id});
    """)
    
    progress_percentage = (completed_lessons / total_lessons) * 100
    return progress_percentage

def display_lesson_status(user_id, course_id):
    lessons_status = query_database(f"""
        SELECT l.id as lesson_id, l.title as lesson_title, ucp.completed as lesson_completed
        FROM lessons l
        LEFT JOIN user_course_progress ucp 
        ON l.id = ucp.lesson_id 
        AND ucp.user_id = {user_id}
        WHERE l.section_id IN (SELECT id FROM sections WHERE course_id = {course_id});
    """)
    
    return lessons_status

This design and approach will ensure that you can effectively track and display user progress through each course.

CREATE TABLE user_course_progress ( id INT AUTO_INCREMENT PRIMARY KEY, user_id INT NOT NULL, course_id INT NOT NULL, lesson_id INT NOT NULL, completed BOOLEAN NOT NULL DEFAULT FALSE, completion_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP, FOREIGN KEY (user_id) REFERENCES users(id), FOREIGN KEY (course_id) REFERENCES courses(id), FOREIGN KEY (lesson_id) REFERENCES lessons(id) );

INSERT INTO user_course_progress (user_id, course_id, lesson_id, completed) VALUES (user_id_value, course_id_value, lesson_id_value, TRUE) ON DUPLICATE KEY UPDATE completed = TRUE, completion_date = CURRENT_TIMESTAMP;

SELECT l.id as lesson_id, l.title as lesson_title, ucp.completed as lesson_completed FROM lessons l LEFT JOIN user_course_progress ucp ON l.id = ucp.lesson_id AND ucp.user_id = user_id_value WHERE l.section_id IN (SELECT id FROM sections WHERE course_id = course_id_value);

def get_course_progress(user_id, course_id): completed_lessons = query_database(f""" SELECT COUNT(*) as completed_lessons FROM user_course_progress WHERE user_id = {user_id} AND course_id = {course_id} AND completed = TRUE; """) total_lessons = query_database(f""" SELECT COUNT(*) as total_lessons FROM lessons WHERE section_id IN (SELECT id FROM sections WHERE course_id = {course_id}); """) progress_percentage = (completed_lessons / total_lessons) * 100 return progress_percentage def display_lesson_status(user_id, course_id): lessons_status = query_database(f""" SELECT l.id as lesson_id, l.title as lesson_title, ucp.completed as lesson_completed FROM lessons l LEFT JOIN user_course_progress ucp ON l.id = ucp.lesson_id AND ucp.user_id = {user_id} WHERE l.section_id IN (SELECT id FROM sections WHERE course_id = {course_id}); """) return lessons_status