setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = " CREATE TABLE IF NOT EXISTS equipment ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) NOT NULL, description TEXT, is_active BOOLEAN NOT NULL DEFAULT TRUE, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) ENGINE=INNODB; CREATE TABLE IF NOT EXISTS operators ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) NOT NULL, is_active BOOLEAN NOT NULL DEFAULT TRUE, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) ENGINE=INNODB; CREATE TABLE IF NOT EXISTS locations ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) NOT NULL, address TEXT, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) ENGINE=INNODB; CREATE TABLE IF NOT EXISTS fuel_receipts ( id INT AUTO_INCREMENT PRIMARY KEY, receipt_date DATE NOT NULL, quantity DECIMAL(10, 2) NOT NULL, supplier VARCHAR(255), created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) ENGINE=INNODB; CREATE TABLE IF NOT EXISTS fuel_issues ( id INT AUTO_INCREMENT PRIMARY KEY, issue_date DATE NOT NULL, equipment_id INT NOT NULL, operator_id INT NOT NULL, location_id INT NOT NULL, quantity DECIMAL(10, 2) NOT NULL, notes TEXT, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, FOREIGN KEY (equipment_id) REFERENCES equipment(id) ON DELETE RESTRICT, FOREIGN KEY (operator_id) REFERENCES operators(id) ON DELETE RESTRICT, FOREIGN KEY (location_id) REFERENCES locations(id) ON DELETE RESTRICT ) ENGINE=INNODB; CREATE TABLE IF NOT EXISTS users ( id INT AUTO_INCREMENT PRIMARY KEY, username VARCHAR(50) NOT NULL UNIQUE, password_hash VARCHAR(255) NOT NULL, role ENUM('admin', 'user') NOT NULL DEFAULT 'user', created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) ENGINE=INNODB; "; $pdo->exec($sql); echo "
"; } catch (PDOException $e) { echo "