Finish cleaning up rendering stack from views and move assigns evaluation to controller (so plugins and/or controllers can overwrite just one method).

1 files changed, 21 insertions, 0 deletions

diff --git a/actionpack/lib/abstract_controller/assigns.rb b/actionpack/lib/abstract_controller/assigns.rb
new file mode 100644
index 0000000000..21459c6d51
--- /dev/null
+++ b/actionpack/lib/abstract_controller/assigns.rb
@@ -0,0 +1,21 @@
+module AbstractController
+  module Assigns
+    # This method should return a hash with assigns.
+    # You can overwrite this configuration per controller.
+    # :api: public
+    def view_assigns
+      hash = {}
+      variables  = instance_variable_names
+      variables -= protected_instance_variables if respond_to?(:protected_instance_variables)
+      variables.each { |name| hash[name] = instance_variable_get(name) }
+      hash
+    end
+
+    # This method assigns the hash specified in _assigns_hash to the given object.
+    # :api: private
+    # TODO Ideally, this should be done on AV::Base.new initialization.
+    def _evaluate_assigns(object)
+      view_assigns.each { |k,v| object.instance_variable_set(k, v) }
+    end
+  end
+end
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