Costum module get some error need FULLTIME developer - 2

- i filtering in edit all purchase id page, view all purchase id page, hilang page, kosong page, when i go to page 2 it will show result which is not that filtered content - when i filter use exclude days option and sorting, it will using the ex_days=0 on link , or when i open another page it will makes ex_days=0 too - when i filter use view option and i open page 2, then the link will adding &order=ASC automaticly, the truth in page one there's no &order=ASC - dashboard not showing all product which is not having last status - when i sorting on purchase id page and going to page 2 the page will showing wrong result because the link is sorting also changed - when i filter like this .... why its still showing up TP81 product, i have already add specific product to show, its BP31 - make when we change status into gk dtg / hilang / kosong on edit all purchase product page the date_modified for those qty gk dtg / hilang / kosong will become now time + 1second - when create purchase id if the qty is 0 then it will not inserted