On Tue, Aug 02, 2011 at 01:57:58AM -0700, Nic Young wrote: > > I've got a single worker using MongDbStorage and a catch_all, Storage > Participant, running behind ruote-kit. I've got a small, sample test > app running separately, which runs a very basic workflow. It accepts a > post, initiates the workflow with ruote-kit, and immediately asks > ruote-kit for any resultant workitems before redirecting according to > the workitem payload. It follows the same model when proceeding to > subsequent steps (a call to ruote-kit to proceed, followed immediately > by a workitem query). Mostly it works as expected, but sometimes the > query for resultant workitems either yields no results (when starting > a workflow), or yields a workitem denoting the previous step (when > proceeding). If I then query for workitems again then the expected one > appears. This leads me to believe that somewhere something is > happening asynchronously, and I'm querying before the process has > completed.
Hello Nic, glad to read from you. I plead guilty here. Ruote is fully asynchronous, from day 0. When you launch a process it returns you a process identifier (a so-called wfid), it never returns you the "result of the process". Whatever the storage you choose, you'll see that behaviour. Look at the participants too, they are themselves just fat callbacks you wire into process definitions, they react upon incoming workitems. If your code tries to act on obsolete information, the operation will just fail and you'll have to ask for more up-to-date information before retrying. If your concern is about testing, look at the ruote test suite for some examples, they are using helper methods like Engine#wait_for to wait until some process events trigger. Sorry for the confusion, cheers, -- John Mettraux - http://lambda.io/processi -- you received this message because you are subscribed to the "ruote users" group. to post : send email to [email protected] to unsubscribe : send email to [email protected] more options : http://groups.google.com/group/openwferu-users?hl=en
