Added basic tree-view schema browser with support for tables, views and triggers. Fixed major bug in editor parsing that proper execution of CREATE TRIGGER blocks. Updated example schemas with triggers and audit tables. New stress test script in examples directory.

Author: nfinit

examples/inventory/schema.sql

@@ -1,60 +1,85 @@
--- Home Inventory Schema
--- SQLite/CE Example
+-- Home Inventory Schema
+-- SQLite/CE Example
+
+CREATE TABLE rooms (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL,
+    floor INTEGER
+);
+
+CREATE TABLE categories (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL
+);
+
+CREATE TABLE items (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL,
+    category_id INTEGER,
+    room_id INTEGER,
+    brand TEXT,
+    model TEXT,
+    serial_number TEXT,
+    purchase_date TEXT,
+    purchase_price REAL,
+    current_value REAL,
+    warranty_expires TEXT,
+    notes TEXT
+);
+
+CREATE TABLE photos (
+    id INTEGER PRIMARY KEY,
+    item_id INTEGER NOT NULL,
+    filename TEXT NOT NULL,
+    description TEXT
+);
+
+CREATE INDEX idx_items_room ON items(room_id);
+CREATE INDEX idx_items_category ON items(category_id);
+CREATE INDEX idx_photos_item ON photos(item_id);
+
+-- Views
+CREATE VIEW v_items AS
+SELECT i.id, i.name, c.name AS category, r.name AS room,
+       i.brand, i.model, i.purchase_price, i.current_value
+FROM items i
+LEFT JOIN categories c ON i.category_id = c.id
+LEFT JOIN rooms r ON i.room_id = r.id;
+
+CREATE VIEW v_room_totals AS
+SELECT r.name AS room, COUNT(i.id) AS item_count, 
+       SUM(i.current_value) AS total_value
+FROM rooms r
+LEFT JOIN items i ON r.id = i.room_id
+GROUP BY r.id;
+
+CREATE VIEW v_warranty_expiring AS
+SELECT name, brand, model, warranty_expires
+FROM items
+WHERE warranty_expires IS NOT NULL
+AND warranty_expires <= date('now', '+6 months');
 
-CREATE TABLE rooms (
-    id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL,
-    floor INTEGER
-);
-
-CREATE TABLE categories (
-    id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL
-);
 
-CREATE TABLE items (
+-- Audit log for tracking changes
+CREATE TABLE audit_log (
     id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL,
-    category_id INTEGER,
-    room_id INTEGER,
-    brand TEXT,
-    model TEXT,
-    serial_number TEXT,
-    purchase_date TEXT,
-    purchase_price REAL,
-    current_value REAL,
-    warranty_expires TEXT,
-    notes TEXT
+    table_name TEXT,
+    action TEXT,
+    item_id INTEGER
 );
 
-CREATE TABLE photos (
-    id INTEGER PRIMARY KEY,
-    item_id INTEGER NOT NULL,
-    filename TEXT NOT NULL,
-    description TEXT
-);
-
-CREATE INDEX idx_items_room ON items(room_id);
-CREATE INDEX idx_items_category ON items(category_id);
-CREATE INDEX idx_photos_item ON photos(item_id);
-
--- Views
-CREATE VIEW v_items AS
-SELECT i.id, i.name, c.name AS category, r.name AS room,
-       i.brand, i.model, i.purchase_price, i.current_value
-FROM items i
-LEFT JOIN categories c ON i.category_id = c.id
-LEFT JOIN rooms r ON i.room_id = r.id;
+-- Triggers
+CREATE TRIGGER items_insert AFTER INSERT ON items FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, item_id) VALUES ('items', 'INSERT', NEW.id);
+END;
 
-CREATE VIEW v_room_totals AS
-SELECT r.name AS room, COUNT(i.id) AS item_count, 
-       SUM(i.current_value) AS total_value
-FROM rooms r
-LEFT JOIN items i ON r.id = i.room_id
-GROUP BY r.id;
+CREATE TRIGGER items_update AFTER UPDATE ON items FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, item_id) VALUES ('items', 'UPDATE', NEW.id);
+END;
 
-CREATE VIEW v_warranty_expiring AS
-SELECT name, brand, model, warranty_expires
-FROM items
-WHERE warranty_expires IS NOT NULL
-AND warranty_expires <= date('now', '+6 months');
+CREATE TRIGGER items_delete AFTER DELETE ON items FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, item_id) VALUES ('items', 'DELETE', OLD.id);
+END;

examples/library/schema.sql

@@ -1,48 +1,73 @@
--- Home Library Catalog Schema
--- SQLite/CE Example
+-- Home Library Catalog Schema
+-- SQLite/CE Example
+
+CREATE TABLE authors (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL,
+    birth_year INTEGER
+);
+
+CREATE TABLE books (
+    id INTEGER PRIMARY KEY,
+    title TEXT NOT NULL,
+    author_id INTEGER,
+    isbn TEXT,
+    year_published INTEGER,
+    genre TEXT,
+    format TEXT,
+    location TEXT,
+    rating INTEGER,
+    date_added TEXT,
+    notes TEXT
+);
+
+CREATE TABLE loans (
+    id INTEGER PRIMARY KEY,
+    book_id INTEGER NOT NULL,
+    borrower TEXT NOT NULL,
+    date_out TEXT NOT NULL,
+    date_due TEXT,
+    date_returned TEXT
+);
+
+CREATE INDEX idx_books_author ON books(author_id);
+CREATE INDEX idx_books_genre ON books(genre);
+CREATE INDEX idx_loans_book ON loans(book_id);
+
+-- Views
+CREATE VIEW v_books AS
+SELECT b.id, b.title, a.name AS author, b.year_published, 
+       b.genre, b.format, b.location, b.rating
+FROM books b
+LEFT JOIN authors a ON b.author_id = a.id;
+
+CREATE VIEW v_loans_active AS
+SELECT l.id, b.title, l.borrower, l.date_out, l.date_due
+FROM loans l
+JOIN books b ON l.book_id = b.id
+WHERE l.date_returned IS NULL;
 
-CREATE TABLE authors (
-    id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL,
-    birth_year INTEGER
-);
-
-CREATE TABLE books (
-    id INTEGER PRIMARY KEY,
-    title TEXT NOT NULL,
-    author_id INTEGER,
-    isbn TEXT,
-    year_published INTEGER,
-    genre TEXT,
-    format TEXT,
-    location TEXT,
-    rating INTEGER,
-    date_added TEXT,
-    notes TEXT
-);
 
-CREATE TABLE loans (
+-- Audit log for tracking changes
+CREATE TABLE audit_log (
     id INTEGER PRIMARY KEY,
-    book_id INTEGER NOT NULL,
-    borrower TEXT NOT NULL,
-    date_out TEXT NOT NULL,
-    date_due TEXT,
-    date_returned TEXT
+    table_name TEXT,
+    action TEXT,
+    record_id INTEGER
 );
 
-CREATE INDEX idx_books_author ON books(author_id);
-CREATE INDEX idx_books_genre ON books(genre);
-CREATE INDEX idx_loans_book ON loans(book_id);
+-- Triggers for books
+CREATE TRIGGER books_insert AFTER INSERT ON books FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, record_id) VALUES ('books', 'INSERT', NEW.id);
+END;
 
--- Views
-CREATE VIEW v_books AS
-SELECT b.id, b.title, a.name AS author, b.year_published, 
-       b.genre, b.format, b.location, b.rating
-FROM books b
-LEFT JOIN authors a ON b.author_id = a.id;
+CREATE TRIGGER books_update AFTER UPDATE ON books FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, record_id) VALUES ('books', 'UPDATE', NEW.id);
+END;
 
-CREATE VIEW v_loans_active AS
-SELECT l.id, b.title, l.borrower, l.date_out, l.date_due
-FROM loans l
-JOIN books b ON l.book_id = b.id
-WHERE l.date_returned IS NULL;
+CREATE TRIGGER books_delete AFTER DELETE ON books FOR EACH ROW
+BEGIN
+    INSERT INTO audit_log (table_name, action, record_id) VALUES ('books', 'DELETE', OLD.id);
+END;