UPDATE: Added database functionality for search bar, still need to integrate with webapp

web_server/blueprints/search_bar.py

@@ -18,7 +18,7 @@ def search_results(query: str):
     # 3 categories
     categories = db.fetchall("""
                 SELECT bm25(category_fts), rank, f.category_id, f.category_name
-                FROM categorys AS c
+                FROM categories AS c
                 INNER JOIN category_fts AS f ON c.category_id = f.category_id
                 WHERE category_fts MATCH ?
                 LIMIT 3;
@@ -38,7 +38,7 @@ def search_results(query: str):
                 SELECT bm25(stream_fts), rank, f.user_id, f.title, f.num_viewers, f.category_id
                 FROM streams s
                 INNER JOIN stream_fts f ON s.user_id = f.user_id
-                WHERE user_fts MATCH ?
+                WHERE stream_fts MATCH ?
                 LIMIT 3;
         """, (query,))
 
@@ -54,7 +54,7 @@ def search_categories(query: str):
 
     categories = db.fetchall("""
                 SELECT bm25(category_fts), rank, f.category_id, f.category_name
-                FROM categorys AS c
+                FROM categories AS c
                 INNER JOIN category_fts AS f ON c.category_id = f.category_id
                 WHERE category_fts MATCH ?;
         """, (query,))
@@ -91,7 +91,7 @@ def search_streams(query: str):
                 SELECT bm25(stream_fts), rank, f.user_id, f.title, f.num_viewers, f.category_id
                 FROM streams s
                 INNER JOIN stream_fts f ON s.user_id = f.user_id
-                WHERE user_fts MATCH ?;
+                WHERE stream_fts MATCH ?;
         """, (query,))
 
     db.close_connection()

web_server/database/text_search.sql

@@ -0,0 +1,114 @@
+/* Full text search queries for categories */
+DROP TABLE IF EXISTS category_fts;
+CREATE VIRTUAL TABLE category_fts
+USING fts5 (category_id, category_name);
+
+INSERT INTO category_fts (category_id, category_name)
+SELECT category_id, category_name
+FROM categories;
+
+-- Triggers that inserts new titles into category_fts
+DROP TRIGGER IF EXISTS insert_category_fts;
+CREATE TRIGGER insert_category_fts
+AFTER INSERT ON categories
+BEGIN
+    INSERT INTO category_fts(category_id, category_name)
+    VALUES (NEW.category_id, NEW.category_name);
+END;
+
+DROP TRIGGER IF EXISTS update_category_fts;
+CREATE TRIGGER update_category_fts
+AFTER UPDATE ON categories
+BEGIN
+    UPDATE category_fts
+    SET
+        category_id = NEW.category_id,
+        category_name = NEW.category_name
+    WHERE category_id = NEW.category_id;
+END;
+
+DROP TRIGGER IF EXISTS delete_category_fts;
+CREATE TRIGGER delete_category_fts
+AFTER DELETE ON categories
+BEGIN
+    DELETE FROM category_fts
+    WHERE category_id = OLD.category_id;
+END;
+
+/* Full text search queries for users */
+DROP TABLE IF EXISTS user_fts;
+CREATE VIRTUAL TABLE user_fts
+USING fts5 (user_id, username, is_live);
+
+INSERT INTO user_fts (user_id, username, is_live)
+SELECT user_id, username, is_live
+FROM users;
+
+-- Triggers that inserts new titles into user_fts
+DROP TRIGGER IF EXISTS insert_user_fts;
+CREATE TRIGGER insert_user_fts
+AFTER INSERT ON users
+BEGIN
+    INSERT INTO user_fts(user_id, username, is_live)
+    VALUES (NEW.user_id, NEW.username, NEW.is_live);
+END;
+
+DROP TRIGGER IF EXISTS update_user_fts;
+CREATE TRIGGER update_user_fts
+AFTER UPDATE ON users
+BEGIN
+    UPDATE user_fts
+    SET
+        user_id = NEW.user_id,
+        username = NEW.username,
+        is_live = NEW.is_live
+    WHERE user_id = NEW.user_id;
+END;
+
+DROP TRIGGER IF EXISTS delete_user_fts;
+CREATE TRIGGER delete_user_fts
+AFTER DELETE ON users
+BEGIN
+    DELETE FROM user_fts
+    WHERE user_id = OLD.user_id;
+END;
+
+
+/* Full text search queries for users */
+DROP TABLE IF EXISTS stream_fts;
+CREATE VIRTUAL TABLE stream_fts
+USING fts5 (user_id, title, num_viewers, category_id);
+
+INSERT INTO stream_fts (user_id, title, num_viewers, category_id)
+SELECT user_id, title, num_viewers, category_id
+FROM streams;
+
+-- Triggers that inserts new titles into stream_fts
+DROP TRIGGER IF EXISTS insert_stream_fts;
+CREATE TRIGGER insert_stream_fts
+AFTER INSERT ON streams
+BEGIN
+    INSERT INTO stream_fts(user_id, title, num_viewers, category_id)
+    VALUES (NEW.user_id, NEW.title, NEW.num_viewers, NEW.category_id);
+END;
+
+DROP TRIGGER IF EXISTS update_stream_fts;
+CREATE TRIGGER update_stream_fts
+AFTER UPDATE ON streams
+BEGIN
+    UPDATE stream_fts
+    SET
+        user_id = NEW.user_id,
+        title = NEW.title,
+        num_viewers = NEW.num_viewers,
+        category_id = NEW.category_id
+    WHERE user_id = NEW.user_id;
+END;
+
+DROP TRIGGER IF EXISTS delete_stream_fts;
+CREATE TRIGGER delete_stream_fts
+AFTER DELETE ON streams
+BEGIN
+    DELETE FROM stream_fts
+    WHERE user_id = OLD.user_id;
+END;