lib/ruote/exp/fe_set.rb in ruote-2.1.11 vs lib/ruote/exp/fe_set.rb in ruote-2.2.0

@@ -1,7 +1,7 @@
 #--
-# Copyright (c) 2005-2010, John Mettraux, [e-mail]
+# Copyright (c) 2005-2011, John Mettraux, [e-mail]
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
@@ -83,13 +83,22 @@
   #     set 'f' => 'val0'
   #     set 'v:v' => 'val1'
   #     set 'f_${v:v}' => 'val2'
   #   end
   #
+  # == set and rset
+  #
+  # Some gems (Sinatra) for example may provide a set method that hides calls
+  # to set when building process definitions (see http://groups.google.com/group/openwferu-users/browse_thread/thread/9ac606e30ada686e)
+  #
+  # A workaround is to write 'rset' instead of 'set'.
+  #
+  #   rset 'customer' => 'Jeff'
+  #
   class SetExpression < FlowExpression
 
-    names :set, :unset
+    names :rset, :set, :unset
 
     def apply
 
       opts = { :escape => attribute(:escape) }
 
@@ -115,37 +124,37 @@
       end
 
       reply_to_parent(h.applied_workitem)
     end
 
-    def reply (workitem)
+    def reply(workitem)
 
       # never called
     end
 
     protected
 
-    def set_v (key, value)
+    def set_v(key, value)
 
       if name == 'unset'
         unset_variable(key)
       else
         set_variable(key, value)
       end
     end
 
-    def set_f (key, value)
+    def set_f(key, value)
 
       if name == 'unset'
         h.applied_workitem['fields'].delete(key)
       else
         Ruote.set(h.applied_workitem['fields'], key, value)
       end
     end
 
-    PREFIX_REGEX = /^([^:]+):(.+)$/ unless defined?(PREFIX_REGEX)
+    PREFIX_REGEX = /^([^:]+):(.+)$/ #unless defined?(PREFIX_REGEX)
 
-    def set_vf (key, value)
+    def set_vf(key, value)
 
       field = true
 
       if m = PREFIX_REGEX.match(key)
         field = m[1][0, 1] == 'f'