-- Migration: Add activity, units, and total_amount columns to work_allocations table
-- Run this if you have an existing database without these columns

ALTER TABLE work_allocations 
ADD COLUMN IF NOT EXISTS activity VARCHAR(100) AFTER sub_department_id;

ALTER TABLE work_allocations 
ADD COLUMN IF NOT EXISTS units DECIMAL(10, 2) AFTER rate;

ALTER TABLE work_allocations 
ADD COLUMN IF NOT EXISTS total_amount DECIMAL(10, 2) AFTER units;