Solve race condition using database trigger function

01/10/2020
1.137

As example, we have a Budget model, which have allocation_cents as the amount allocated for the budget, which can be used to buy the items proposed in the budget.A budget can have many_items, and we need make sure that the sum of the items' price (price_cents) does not exceed the budget's allocation amount (allocation_cents).
Solve race condition using database trigger function #ruby #rubydeveloper #rubyonrails #database https://rubyonrails.ba/single/solve-race-condition-using-database-trigger-function