lib/openwfe/expressions/fe_command.rb in openwferu-0.9.13 vs lib/openwfe/expressions/fe_command.rb in openwferu-0.9.14

@@ -36,11 +36,10 @@
 #
 # John Mettraux at openwfe.org
 #
 
 require 'openwfe/expressions/condition'
-#require 'openwfe/expressions/flowexpression'
 
 
 module OpenWFE
 
     #
@@ -190,9 +189,23 @@
     #         go_to_shop
     #         check_prices
     #         _break :if => "${price} > ${f:current_cash}"
     #         buy_stuff
     #     end
+    #
+    # The 'rif' attribute may be used instead of the 'if' attribute. Its value
+    # is some ruby code that, when evaluating to true will let the command
+    # be executed.
+    #
+    #     _skip 2, :rif => "workitem.customers.size % 2 == 0"
+    #         #
+    #         # skips if the nb of customers is pair
+    #
+    # Note that the 'rif' attribute will work only if the 
+    # <tt>:ruby_eval_allowed</tt> parameter is set to true in the engine's
+    # application context.
+    #
+    #     engine.application_context[:ruby_eval_allowed] = true
     #
     class CursorCommandExpression < FlowExpression
         include CommandConstants
         include ConditionMixin