Move missing template logic to ActionView

actionpack/CHANGELOG

 *SVN*
 
+* Move missing template logic to ActionView. [Pratik]
+
 * Introduce ActionView::InlineTemplate class. [Pratik]
 
 * Automatically parse posted JSON content for Mime::JSON requests.  [rick]

actionpack/lib/action_controller/base.rb

@@ -16,9 +16,6 @@ class ActionControllerError < StandardError #:nodoc:
   class SessionRestoreError < ActionControllerError #:nodoc:
   end
 
-  class MissingTemplate < ActionControllerError #:nodoc:
-  end
-
   class RenderError < ActionControllerError #:nodoc:
   end
 
@@ -1105,7 +1102,6 @@ def reset_session #:doc:
     private
       def render_for_file(template_path, status = nil, use_full_path = false, locals = {}) #:nodoc:
         add_variables_to_assigns
-        assert_existence_of_template_file(template_path) if use_full_path
         logger.info("Rendering #{template_path}" + (status ? " (#{status})" : '')) if logger
         render_for_text(@template.render_file(template_path, use_full_path, locals), status)
       end
@@ -1267,15 +1263,6 @@ def template_exempt_from_layout?(template_name = default_template_name)
         @@exempt_from_layout.any? { |ext| name_with_extension =~ ext }
       end
 
-      def assert_existence_of_template_file(template_name)
-        unless template_exists?(template_name) || ignore_missing_templates
-          full_template_path = template_name.include?('.') ? template_name : "#{template_name}.#{@template.template_format}.erb"
-          display_paths = view_paths.join(':')
-          template_type = (template_name =~ /layouts/i) ? 'layout' : 'template'
-          raise(MissingTemplate, "Missing #{template_type} #{full_template_path} in view path #{display_paths}")
-        end
-      end
-
       def default_template_name(action_name = self.action_name)
         if action_name
           action_name = action_name.to_s

actionpack/lib/action_controller/layout.rb

@@ -244,9 +244,7 @@ def active_layout(passed_layout = nil)
       def render_with_a_layout(options = nil, extra_options = {}, &block) #:nodoc:
         template_with_options = options.is_a?(Hash)
 
-        if apply_layout?(template_with_options, options) && (layout = pick_layout(template_with_options, options))
-          assert_existence_of_template_file(layout)
-
+        if (layout = pick_layout(template_with_options, options)) && apply_layout?(template_with_options, options)
           options = options.merge :layout => false if template_with_options
           logger.info("Rendering template within #{layout}") if logger
 

actionpack/lib/action_controller/rescue.rb

@@ -26,7 +26,7 @@ module Rescue
 
     DEFAULT_RESCUE_TEMPLATE = 'diagnostics'
     DEFAULT_RESCUE_TEMPLATES = {
-      'ActionController::MissingTemplate' => 'missing_template',
+      'ActionView::MissingTemplate'       => 'missing_template',
       'ActionController::RoutingError'    => 'routing_error',
       'ActionController::UnknownAction'   => 'unknown_action',
       'ActionView::TemplateError'         => 'template_error'

actionpack/lib/action_view/base.rb

 module ActionView #:nodoc:
   class ActionViewError < StandardError #:nodoc:
   end
+  
+  class MissingTemplate < ActionViewError #:nodoc:
+  end
 
   # Action View templates can be written in three ways. If the template file has a +.erb+ (or +.rhtml+) extension then it uses a mixture of ERb 
   # (included in Ruby) and HTML. If the template file has a +.builder+ (or +.rxml+) extension then Jim Weirich's Builder::XmlMarkup library is used. 

actionpack/lib/action_view/template.rb

@@ -54,9 +54,8 @@ def set_extension_and_file_name(use_full_path)
           @filename = @finder.pick_template(@path_without_extension, @extension)
         else
           @extension = @finder.pick_template_extension(@path).to_s
-          unless @extension
-            raise ActionViewError, "No template found for #{@path} in #{@finder.view_paths.inspect}"
-          end
+          raise_missing_template_exception unless @extension
+          
           @filename = @finder.pick_template(@path, @extension)
           @extension = @extension.gsub(/^.+\./, '') # strip off any formats
         end
@@ -64,9 +63,14 @@ def set_extension_and_file_name(use_full_path)
         @filename = @path
       end
 
-      if @filename.blank?
-        raise ActionViewError, "Couldn't find template file for #{@path} in #{@finder.view_paths.inspect}"
-      end
+      raise_missing_template_exception if @filename.blank?
+    end
+    
+    def raise_missing_template_exception
+      full_template_path = @path.include?('.') ? @path : "#{@path}.#{@view.template_format}.erb"
+      display_paths = @finder.view_paths.join(':')
+      template_type = (@path =~ /layouts/i) ? 'layout' : 'template'
+      raise(MissingTemplate, "Missing #{template_type} #{full_template_path} in view path #{display_paths}")
     end
 
     # Template Handlers

actionpack/test/controller/cookie_test.rb

@@ -37,7 +37,7 @@ def authenticate_with_http_only
     end
 
     def rescue_action(e) 
-      raise unless ActionController::MissingTemplate # No templates here, and we don't care about the output 
+      raise unless ActionView::MissingTemplate # No templates here, and we don't care about the output 
     end
   end
 

actionpack/test/controller/flash_test.rb

@@ -52,7 +52,7 @@ def use_flash_after_reset_session
     end
 
     def rescue_action(e)
-      raise unless ActionController::MissingTemplate === e
+      raise unless ActionView::MissingTemplate === e
     end
 
     # methods for test_sweep_after_halted_filter_chain

actionpack/test/controller/layout_test.rb

@@ -216,7 +216,7 @@ def test_exception_raised_when_layout_file_not_found
     @controller = SetsNonExistentLayoutFile.new
     get :hello
     @response.template.class.module_eval { attr_accessor :exception }
-    assert_equal ActionController::MissingTemplate, @response.template.exception.class
+    assert_equal ActionView::MissingTemplate, @response.template.exception.class
   end
 end
 

actionpack/test/controller/mime_responds_test.rb

@@ -468,7 +468,7 @@ def test_format_with_custom_response_type_and_request_headers_with_only_one_layo
     assert_equal '<html><div id="html_missing">Hello future from Firefox!</div></html>', @response.body 
 
     @request.env["HTTP_ACCEPT"] = "text/iphone"
-    assert_raises(ActionController::MissingTemplate) { get :iphone_with_html_response_type_without_layout }
+    assert_raises(ActionView::MissingTemplate) { get :iphone_with_html_response_type_without_layout }
   end 
 end
 

actionpack/test/controller/new_render_test.rb

@@ -652,7 +652,7 @@ def test_render_to_string_partial
   end  
 
   def test_bad_render_to_string_still_throws_exception
-    assert_raises(ActionController::MissingTemplate) { get :render_to_string_with_exception }
+    assert_raises(ActionView::MissingTemplate) { get :render_to_string_with_exception }
   end
   
   def test_render_to_string_that_throws_caught_exception_doesnt_break_assigns
@@ -787,7 +787,7 @@ def test_partial_with_implicit_local_assignment
   end
   
   def test_render_missing_partial_template
-    assert_raises(ActionView::ActionViewError) do
+    assert_raises(ActionView::MissingTemplate) do
       get :missing_partial
     end
   end

actionpack/test/controller/rescue_test.rb

@@ -279,7 +279,7 @@ def test_rescue_templates
     assert_equal ActionController::Rescue::DEFAULT_RESCUE_TEMPLATE, templates.default
     assert_equal ActionController::Rescue::DEFAULT_RESCUE_TEMPLATE, templates[Exception.new]
 
-    assert_equal 'missing_template',  templates[ActionController::MissingTemplate.name]
+    assert_equal 'missing_template',  templates[ActionView::MissingTemplate.name]
     assert_equal 'routing_error',     templates[ActionController::RoutingError.name]
     assert_equal 'unknown_action',    templates[ActionController::UnknownAction.name]
     assert_equal 'template_error',    templates[ActionView::TemplateError.name]

actionpack/test/template/template_object_test.rb

@@ -82,7 +82,7 @@ def test_js
 
     def test_xml
       @view.template_format = :xml
-      assert_raise ActionView::ActionViewError do
+      assert_raise ActionView::MissingTemplate do
         ActionView::PartialTemplate.new(@view, @path, nil)
       end
     end