set group of druids to a particular status via console

set-step-status-console.rb

druids = ["druid:bt238kw3938", "druid:bw690ww9101", "druid:cc502yd9847", "druid:ch100bz7050"]
 druids.each do |druid|
   begin
     @object=Dor::Item.find(druid)
     Dor::WorkflowService.update_workflow_status 'dor', @object.pid, 'accessionWF', 'provenance-metadata', 'waiting'
   end
 end

If you're only using the pid from the object, you don't need to fetch them. Just use the druids you have in the array, and pass them to the update_workflow_status method

see code here: https://github.com/sul-dlss/dor-workflow-service/blob/232e065c99cfb024d07e31ce5e2a524fc0eac822/lib/dor/services/workflow_service.rb#L39

also for my own personal edification i like to use the Dor::Item.find to ensure that the druid I'm looking for actually exists because sometimes i'm doing weird things and they in fact don't.