import re

# Migration: isi code kategori & item_code produk untuk data existing
env.cr.execute(
    "CREATE UNIQUE INDEX IF NOT EXISTS product_template_item_code_uniq "
    "ON product_template (item_code) WHERE item_code IS NOT NULL"
)
env.cr.commit()

cats = env['product.category'].search([])
for c in cats:
    if not c.code:
        c.code = f'{c.id:02d}'
env.cr.commit()
print(f'Kategori di-update: {len(cats)}')

prods = env['product.template'].search([])
for p in prods:
    p._generate_item_code()
env.cr.commit()
print(f'Produk di-update: {len(prods)}')

# Verifikasi contoh
for p in prods[:5]:
    print(f'  {p.name!r} -> {p.item_code!r}')