Misc updates, implemented comments

backend/api/internal/database/create_tables.sql

@@ -51,6 +51,8 @@ CREATE TABLE Projects (
 CREATE TABLE ProjectComments (
     project_id INTEGER NOT NULL,
     comment_id INTEGER NOT NULL,
+    user_id INTEGER NOT NULL,
+    FOREIGN KEY (user_id) REFERENCES Users(id) ON DELETE CASCADE,
     FOREIGN KEY (project_id) REFERENCES Projects(id) ON DELETE CASCADE,
     FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE,
     PRIMARY KEY (project_id, comment_id)
@@ -72,6 +74,8 @@ CREATE TABLE Posts (
 CREATE TABLE PostComments (
     post_id INTEGER NOT NULL,
     comment_id INTEGER NOT NULL,
+    user_id INTEGER NOT NULL,
+    FOREIGN KEY (user_id) REFERENCES Users(id) ON DELETE CASCADE,
     FOREIGN KEY (post_id) REFERENCES Posts(id) ON DELETE CASCADE,
     FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE,
     PRIMARY KEY (post_id, comment_id)
@@ -81,11 +85,10 @@ CREATE TABLE PostComments (
 CREATE TABLE Comments (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     content TEXT NOT NULL,
-    post_id INTEGER NOT NULL,
     parent_comment_id INTEGER,
+    likes INTEGER NOT NULL,
     creation_date TIMESTAMP NOT NULL,
     user_id INTEGER NOT NULL,
-    FOREIGN KEY (post_id) REFERENCES Posts(id) ON DELETE CASCADE,
     FOREIGN KEY (parent_comment_id) REFERENCES Comments(id) ON DELETE CASCADE,
     FOREIGN KEY (user_id) REFERENCES Users(id) ON DELETE CASCADE
 );

backend/api/internal/database/create_test_data.sql

@@ -1,54 +1,56 @@
--- Insert Users with fixed creation dates
+-- Users
 INSERT INTO Users (username, picture, bio, links, creation_date) VALUES
     ('dev_user1', 'https://example.com/dev_user1.jpg', 'Full-stack developer passionate about open-source projects.', '["https://github.com/dev_user1", "https://devuser1.com"]', '2023-12-13 00:00:00'),
     ('tech_writer2', 'https://example.com/tech_writer2.jpg', 'Technical writer and Python enthusiast.', '["https://blog.techwriter.com"]', '2022-12-13 00:00:00'),
-    ('data_scientist3', 'https://example.com/data_scientist3.jpg', 'Data scientist with a passion for machine learning.', '["https://github.com/data_scientist3", "https://datascientist3.com"]', '2023-06-13 00:00:00');
+    ('data_scientist3', 'https://example.com/data_scientist3.jpg', 'Data scientist with a passion for machine learning.', '["https://github.com/data_scientist3", "https://datascientist3.com"]', '2023-06-13 00:00:00'),
+    ('backend_guru4', 'https://example.com/backend_guru4.jpg', 'Backend expert specializing in scalable systems.', '["https://github.com/backend_guru4"]', '2024-01-15 00:00:00'),
+    ('ui_designer5', 'https://example.com/ui_designer5.jpg', 'UI/UX designer with a love for user-friendly apps.', '["https://portfolio.uidesigner5.com"]', '2023-05-10 00:00:00');
 
--- Insert Projects with fixed creation dates
+-- Projects
 INSERT INTO Projects (name, description, status, likes, tags, links, owner, creation_date) VALUES
     ('OpenAPI Toolkit', 'A toolkit for generating and testing OpenAPI specs.', 1, 120, '["OpenAPI", "Go", "Tooling"]', '["https://github.com/dev_user1/openapi-toolkit"]', (SELECT id FROM Users WHERE username = 'dev_user1'), '2023-06-13 00:00:00'),
     ('DocuHelper', 'A library for streamlining technical documentation processes.', 2, 85, '["Documentation", "Python"]', '["https://github.com/tech_writer2/docuhelper"]', (SELECT id FROM Users WHERE username = 'tech_writer2'), '2021-12-13 00:00:00'),
-    ('ML Research', 'Research repository for various machine learning algorithms.', 1, 45, '["Machine Learning", "Python", "Research"]', '["https://github.com/data_scientist3/ml-research"]', (SELECT id FROM Users WHERE username = 'data_scientist3'), '2024-09-13 00:00:00');
+    ('ML Research', 'Research repository for various machine learning algorithms.', 1, 45, '["Machine Learning", "Python", "Research"]', '["https://github.com/data_scientist3/ml-research"]', (SELECT id FROM Users WHERE username = 'data_scientist3'), '2024-09-13 00:00:00'),
+    ('ScaleDB', 'A scalable database system for modern apps.', 1, 70, '["Database", "Scalability", "Backend"]', '["https://github.com/backend_guru4/scaledb"]', (SELECT id FROM Users WHERE username = 'backend_guru4'), '2024-03-15 00:00:00');
 
--- Insert Posts with fixed creation dates
+-- Posts
 INSERT INTO Posts (content, project_id, creation_date, user_id, likes) VALUES
     ('Excited to release the first version of OpenAPI Toolkit!', (SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), '2024-09-13 00:00:00', (SELECT id FROM Users WHERE username = 'dev_user1'), 40),
     ('We''ve archived DocuHelper, but feel free to explore the code.', (SELECT id FROM Projects WHERE name = 'DocuHelper'), '2024-06-13 00:00:00', (SELECT id FROM Users WHERE username = 'tech_writer2'), 25),
     ('Updated ML Research repo with new algorithms for data analysis.', (SELECT id FROM Projects WHERE name = 'ML Research'), '2024-11-13 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3'), 15);
 
--- Insert Comments with fixed creation dates
-INSERT INTO Comments (content, post_id, parent_comment_id, creation_date, user_id) VALUES
-    ('This is amazing! Can''t wait to try it out.', (SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), NULL, '2024-10-13 00:00:00', (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ('Thanks for the kind words!', (SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'This is amazing! Can''t wait to try it out.'), '2024-11-13 00:00:00', (SELECT id FROM Users WHERE username = 'dev_user1')),
-    ('Looks great! I''ll test it and report back.', (SELECT id FROM Posts WHERE content = 'Updated ML Research repo with new algorithms for data analysis.'), NULL, '2024-11-13 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3'));
-
--- Insert Project Likes with fixed dates
-INSERT INTO ProjectLikes (project_id, user_id) VALUES
-    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Users WHERE username = 'dev_user1')),
-    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ((SELECT id FROM Projects WHERE name = 'DocuHelper'), (SELECT id FROM Users WHERE username = 'dev_user1')),
-    ((SELECT id FROM Projects WHERE name = 'ML Research'), (SELECT id FROM Users WHERE username = 'data_scientist3'));
-
--- Insert Post Likes with fixed dates
-INSERT INTO PostLikes (post_id, user_id) VALUES
-    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Users WHERE username = 'dev_user1')),
-    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ((SELECT id FROM Posts WHERE content = 'We''ve archived DocuHelper, but feel free to explore the code.'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ((SELECT id FROM Posts WHERE content = 'Updated ML Research repo with new algorithms for data analysis.'), (SELECT id FROM Users WHERE username = 'data_scientist3'));
-
--- Insert Comment Likes with fixed dates
-INSERT INTO CommentLikes (comment_id, user_id) VALUES
-    ((SELECT id FROM Comments WHERE content = 'This is amazing! Can''t wait to try it out.'), (SELECT id FROM Users WHERE username = 'dev_user1')),
-    ((SELECT id FROM Comments WHERE content = 'Thanks for the kind words!'), (SELECT id FROM Users WHERE username = 'tech_writer2'));
-
--- Insert User Follows with fixed dates
-INSERT INTO UserFollows (follower_id, follows_id) VALUES
-    ((SELECT id FROM Users WHERE username = 'dev_user1'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ((SELECT id FROM Users WHERE username = 'tech_writer2'), (SELECT id FROM Users WHERE username = 'data_scientist3')),
-    ((SELECT id FROM Users WHERE username = 'dev_user1'), (SELECT id FROM Users WHERE username = 'data_scientist3')),
-    ((SELECT id FROM Users WHERE username = 'data_scientist3'), (SELECT id FROM Users WHERE username = 'dev_user1'));
-
--- Insert Project Follows with fixed dates
-INSERT INTO ProjectFollows (project_id, user_id) VALUES
-    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
-    ((SELECT id FROM Projects WHERE name = 'ML Research'), (SELECT id FROM Users WHERE username = 'dev_user1'));
+-- Comments on Projects (Parent-child relationships with hardcoded parent_comment_id)
+INSERT INTO Comments (content, parent_comment_id, likes, creation_date, user_id) VALUES
+    ('This is a fantastic project! Can''t wait to contribute.', NULL, 5, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'dev_user1')),
+    ('I love the concept, but I think the documentation could be improved.', NULL, 3, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'tech_writer2')),
+    ('Great to see more open-source tools for API development!', NULL, 4, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'backend_guru4')),
+    ('I agree, but the API specs seem a bit too complex for beginners.', 3, 2, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3')),  -- Hardcoded parent_comment_id = 3
+    ('I hope this toolkit will integrate with other Go tools soon!', 1, 1, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'ui_designer5')),  -- Hardcoded parent_comment_id = 1
+    ('I agree, the documentation is lacking in detail.', 2, 1, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3'));  -- Hardcoded parent_comment_id = 2
+
+-- ProjectComments relations (Mapping comments to projects)
+INSERT INTO ProjectComments (project_id, comment_id, user_id) VALUES
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'This is a fantastic project! Can''t wait to contribute.'), (SELECT id FROM Users WHERE username = 'dev_user1')),
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'I love the concept, but I think the documentation could be improved.'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'Great to see more open-source tools for API development!'), (SELECT id FROM Users WHERE username = 'backend_guru4')),
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'I agree, but the API specs seem a bit too complex for beginners.'), (SELECT id FROM Users WHERE username = 'data_scientist3')),
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'I hope this toolkit will integrate with other Go tools soon!'), (SELECT id FROM Users WHERE username = 'ui_designer5')),
+    ((SELECT id FROM Projects WHERE name = 'OpenAPI Toolkit'), (SELECT id FROM Comments WHERE content = 'I agree, the documentation is lacking in detail.'), (SELECT id FROM Users WHERE username = 'data_scientist3'));
+
+-- Comments on Posts (Parent-child relationships with hardcoded parent_comment_id)
+INSERT INTO Comments (content, parent_comment_id, likes, creation_date, user_id) VALUES
+    ('Awesome update! I''ll try it out.', NULL, 2, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'backend_guru4')),
+    ('Thanks for sharing! Will this feature be extended soon?', NULL, 1, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3')),
+    ('Great work, looking forward to more updates!', NULL, 4, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'ui_designer5')),
+    ('Will this be compatible with earlier versions of OpenAPI?', 2, 1, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'tech_writer2')),  -- Hardcoded parent_comment_id = 2
+    ('I hope the next update addresses performance improvements.', 1, 3, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'data_scientist3')),  -- Hardcoded parent_comment_id = 1
+    ('Looking forward to testing it!', 3, 2, '2024-12-23 00:00:00', (SELECT id FROM Users WHERE username = 'dev_user1'));  -- Hardcoded parent_comment_id = 3
+
+-- PostComments relations (Mapping comments to posts)
+INSERT INTO PostComments (post_id, comment_id, user_id) VALUES
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'Awesome update! I''ll try it out.'), (SELECT id FROM Users WHERE username = 'backend_guru4')),
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'Thanks for sharing! Will this feature be extended soon?'), (SELECT id FROM Users WHERE username = 'data_scientist3')),
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'Great work, looking forward to more updates!'), (SELECT id FROM Users WHERE username = 'ui_designer5')),
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'Will this be compatible with earlier versions of OpenAPI?'), (SELECT id FROM Users WHERE username = 'tech_writer2')),
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'I hope the next update addresses performance improvements.'), (SELECT id FROM Users WHERE username = 'data_scientist3')),
+    ((SELECT id FROM Posts WHERE content = 'Excited to release the first version of OpenAPI Toolkit!'), (SELECT id FROM Comments WHERE content = 'Looking forward to testing it!'), (SELECT id FROM Users WHERE username = 'dev_user1'));

backend/api/internal/database/post_queries.go

@@ -129,7 +129,7 @@ func QueryUpdatePost(id int, updatedData map[string]interface{}) error {
 //   - id: The unique identifier of the user to query.
 //
 // Returns:
-//   - *types.Post: The post details if found.
+//   - []types.Post: The post details if found.
 //   - error: An error if the query fails. Returns nil for both if no post exists.
 func QueryPostsByUserId(userId int) ([]types.Post, int, error) {
 	query := `SELECT id, user_id, project_id, content, likes, creation_date FROM Posts WHERE user_id = ?;`
@@ -140,7 +140,7 @@ func QueryPostsByUserId(userId int) ([]types.Post, int, error) {
 	}
 	defer rows.Close()
 
-	var posts []types.Post = []types.Post{}
+	var posts []types.Post
 
 	for rows.Next() {
 		var post types.Post

backend/api/internal/database/project_queries.go

@@ -53,6 +53,55 @@ func QueryProject(id int) (*types.Project, error) {
 	return &project, nil
 }
 
+// QueryProjectsByUserId retrieves a user's projects by a user ID from the database.
+//
+// Parameters:
+//   - id: The unique identifier of the user to query projects on.
+//
+// Returns:
+//   - *[]types.Project: A list of the projects' details if found.
+//   - error: An error if the query fails. Returns nil for both if no project exists.
+func QueryProjectsByUserId(userId int) ([]types.Project, int, error) {
+	query := `SELECT id, name, description, status, likes, links, tags, owner, creation_date FROM Projects WHERE owner = ?;`
+	rows, err := DB.Query(query, userId)
+	if err != nil {
+		return nil, http.StatusNotFound, err
+	}
+	var projects []types.Project
+	defer rows.Close()
+
+	for rows.Next() {
+		var project types.Project
+		var linksJSON, tagsJSON string
+		err := rows.Scan(
+			&project.ID,
+			&project.Name,
+			&project.Description,
+			&project.Status,
+			&project.Likes,
+			&linksJSON,
+			&tagsJSON,
+			&project.Owner,
+			&project.CreationDate,
+		)
+		if err != nil {
+			if err == sql.ErrNoRows {
+				return nil, http.StatusOK, nil
+			}
+			return nil, http.StatusInternalServerError, err
+		}
+
+		if err := UnmarshalFromJSON(linksJSON, &project.Links); err != nil {
+			return nil, http.StatusBadRequest, err
+		}
+		if err := UnmarshalFromJSON(tagsJSON, &project.Tags); err != nil {
+			return nil, http.StatusBadRequest, err
+		}
+	}
+
+	return projects, http.StatusOK, nil
+}
+
 // QueryCreateProject creates a new project in the database.
 //
 // Parameters: