Fixed template recompile logic [#630 state:resolved]

Signed-off-by: Joshua Peek <josh@joshpeek.com>

1 files changed, 31 insertions, 22 deletions

diff --git a/actionpack/lib/action_view/renderable.rb b/actionpack/lib/action_view/renderable.rb
index badb2b171c..46193670f3 100644
--- a/actionpack/lib/action_view/renderable.rb
+++ b/actionpack/lib/action_view/renderable.rb
@@ -9,6 +9,10 @@ module ActionView
 
     include ActiveSupport::Memoizable
 
+    def filename
+      'compiled-template'
+    end
+
     def handler
       Template.handler_class_for_extension(extension)
     end
@@ -35,35 +39,41 @@ module ActionView
     end
 
     private
-      # Compile and evaluate the template's code
+      # Compile and evaluate the template's code (if necessary)
       def compile(local_assigns)
         render_symbol = method(local_assigns)
 
         @@mutex.synchronize do
-          return false unless recompile?(render_symbol)
+          if recompile?(render_symbol)
+            compile!(render_symbol, local_assigns)
+          end
+        end
+      end
 
-          locals_code = local_assigns.keys.map { |key| "#{key} = local_assigns[:#{key}];" }.join
+      def compile!(render_symbol, local_assigns)
+        locals_code = local_assigns.keys.map { |key| "#{key} = local_assigns[:#{key}];" }.join
 
-          source = <<-end_src
-            def #{render_symbol}(local_assigns)
-              old_output_buffer = output_buffer;#{locals_code};#{compiled_source}
-            ensure
-              self.output_buffer = old_output_buffer
-            end
-          end_src
+        source = <<-end_src
+          def #{render_symbol}(local_assigns)
+            old_output_buffer = output_buffer;#{locals_code};#{compiled_source}
+          ensure
+            self.output_buffer = old_output_buffer
+          end
+        end_src
 
-          begin
-            file_name = respond_to?(:filename) ? filename : 'compiled-template'
-            ActionView::Base::CompiledTemplates.module_eval(source, file_name, 0)
-          rescue Exception => e # errors from template code
-            if logger = ActionController::Base.logger
-              logger.debug "ERROR: compiling #{render_symbol} RAISED #{e}"
-              logger.debug "Function body: #{source}"
-              logger.debug "Backtrace: #{e.backtrace.join("\n")}"
-            end
+        begin
+          logger = ActionController::Base.logger
+          logger.debug "Compiling template #{render_symbol}" if logger
 
-            raise ActionView::TemplateError.new(self, {}, e)
+          ActionView::Base::CompiledTemplates.module_eval(source, filename, 0)
+        rescue Exception => e # errors from template code
+          if logger
+            logger.debug "ERROR: compiling #{render_symbol} RAISED #{e}"
+            logger.debug "Function body: #{source}"
+            logger.debug "Backtrace: #{e.backtrace.join("\n")}"
           end
+
+          raise ActionView::TemplateError.new(self, {}, e)
         end
       end
 
@@ -71,8 +81,7 @@ module ActionView
       # The template will be compiled if the file has not been compiled yet, or
       # if local_assigns has a new key, which isn't supported by the compiled code yet.
       def recompile?(symbol)
-        meth = Base::CompiledTemplates.instance_method(template.method) rescue nil
-        !(meth && frozen?)
+        !(frozen? && Base::CompiledTemplates.method_defined?(symbol))
       end
   end
 end