Some database refactoring

internal/database/handlers.go

@@ -33,9 +33,9 @@ func GetBoard(db *sql.DB, slug string) (Board, error) {
 	return result, row.Err()
 }
 
-func GetBoardThreads(db *sql.DB, board_id int) ([]Thread, error) {
+func GetBoardThreads(db *sql.DB, slug string) ([]Thread, error) {
 	rows, err := db.Query(
-		`SELECT id, board_id, subject, created_at, bumped_at FROM threads WHERE board_id = ?`, board_id)
+		`SELECT id, board_slug, subject, created_at, bumped_at FROM threads WHERE board_slug = ?`, slug)
 	if err != nil {
 		return nil, err
 	}
@@ -44,7 +44,7 @@ func GetBoardThreads(db *sql.DB, board_id int) ([]Thread, error) {
 	var result []Thread
 	for rows.Next() {
 		var t Thread
-		err := rows.Scan(&t.Id, &t.BoardId, &t.Subject, &t.CreatedAt, &t.BumpedAt)
+		err := rows.Scan(&t.Id, &t.BoardSlug, &t.Subject, &t.CreatedAt, &t.BumpedAt)
 		if err != nil {
 			return nil, err
 		}
@@ -74,14 +74,14 @@ func GetThreadPosts(db *sql.DB, thread_id int) ([]Post, error) {
 	return result, rows.Err()
 }
 
-func PutBoardThread(db *sql.DB, boardId int, subject string, body string) error {
+func PutBoardThread(db *sql.DB, board_slug string, subject string, body string) error {
 	tx, err := db.Begin()
 	if err != nil {
 		return err
 	}
 	defer tx.Rollback()
 
-	res, err := tx.Exec(`INSERT INTO threads (board_id, subject) VALUES (?, ?) RETURNING id`, boardId, subject)
+	res, err := tx.Exec(`INSERT INTO threads (board_slug, subject) VALUES (?, ?) RETURNING id`, board_slug, subject)
 	if err != nil {
 		return err
 	}

internal/database/models.go

@@ -11,7 +11,7 @@ type Board struct {
 
 type Thread struct {
 	Id        int
-	BoardId   int
+	BoardSlug string
 	Subject   string
 	CreatedAt time.Time
 	BumpedAt  time.Time

internal/database/seed.sql

@@ -13,11 +13,11 @@ CREATE TABLE IF NOT EXISTS boards (
 
 CREATE TABLE IF NOT EXISTS threads ( 
     id INTEGER PRIMARY KEY AUTOINCREMENT, 
-    board_id INTEGER NOT NULL,
+    board_slug TEXT NOT NULL,
     subject TEXT NOT NULL DEFAULT '',
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
     bumped_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (board_id) REFERENCES boards(id) ON DELETE CASCADE
+    FOREIGN KEY (board_slug) REFERENCES boards(slug) ON DELETE CASCADE ON UPDATE CASCADE
 );
 
 CREATE TABLE IF NOT EXISTS posts (
@@ -42,8 +42,8 @@ INSERT INTO boards (slug, name, tag) VALUES
 -- Welcome threads
 
   -- /comfy/
-    INSERT INTO threads (board_id, subject) VALUES ( 
-        (SELECT id FROM boards WHERE slug='comfy'),
+    INSERT INTO threads (board_slug, subject) VALUES ( 
+        'comfy',
         'Welcome to /comfy/.' 
     );
     INSERT INTO posts (thread_id, body) VALUES (