在轨道上的 ruby 中，我怎样才能一一排队工作？

Question

I have a big problem, I try to queu job one by one in a queu in ruby on rails. I really need that the controller dont access at the same time to a liste of function because it is a long process and it use the databases during. If two time the process is started at same time (or little differences) it will be conflict in my data.

Thanks for your help,

Pierre

Answer 1

the most easy why is to put a static attribute in class

class MyJob
   @@locked=0
   def perform(*args)
    while @@locked==1 do
        sleep(0.2)
    end
    @@locked=1
    # your code here
    @@locked=0
  end
end