numerus/deploy/edit_product.sql

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-- Deploy numerus:edit_product to pg
-- requires: schema_numerus
-- requires: product
-- requires: product_tax
-- requires: parse_price
-- requires: company
-- requires: currency
begin;
set search_path to numerus, public;
create or replace function edit_product(slug uuid, name text, description text, price text, taxes integer[]) returns boolean
as $$
declare
pid integer;
begin
update product
set name = edit_product.name
, description = edit_product.description
, price = parse_price(edit_product.price, decimal_digits)
from company
join currency using (currency_code)
where product.company_id = company.company_id
and product.slug = edit_product.slug
returning product_id
into pid;
if pid is null then
return false;
end if;
delete from product_tax where product_id = pid;
insert into product_tax(product_id, tax_id)
select pid, tax_id
from unnest(taxes) as tax(tax_id);
return true;
end;
$$ language plpgsql;
revoke execute on function edit_product(uuid, text, text, text, integer[]) from public;
grant execute on function edit_product(uuid, text, text, text, integer[]) to invoicer;
grant execute on function edit_product(uuid, text, text, text, integer[]) to admin;
commit;