rescuing I18n::MissingTranslationData is slower than adding a default to the I18n.t call

Author: James McKinney

lib/active_admin/sidebar_section.rb

@@ -25,11 +25,7 @@ def icon
 
     # The title gets displayed within the section in the view
     def title
-      begin
-        I18n.t!("active_admin.sidebars.#{name.to_s}")
-      rescue I18n::MissingTranslationData
-        name.to_s.titlecase
-      end
+      I18n.t("active_admin.sidebars.#{name.to_s}", :default => name.to_s.titlecase)
     end
 
     # If a block is not passed in, the name of the partial to render

lib/active_admin/view_helpers/breadcrumb_helper.rb

@@ -9,7 +9,7 @@ def breadcrumb_links(path = nil)
         parts.pop unless %w{ create update }.include?(params[:action])
         crumbs = []
         parts.each_with_index do |part, index|
-          name = ""
+          name = nil
           if part =~ /^\d|^[a-f0-9]{24}$/ && parent = parts[index - 1]
             begin
               parent_class = parent.singularize.camelcase.constantize
@@ -19,12 +19,9 @@ def breadcrumb_links(path = nil)
             end
           end
 
-          name = part.titlecase if name == ""
-          begin
-            crumbs << link_to( I18n.translate!("activerecord.models.#{part.singularize}", :count => 1.1), "/" + parts[0..index].join('/'))
-          rescue I18n::MissingTranslationData
-            crumbs << link_to( name, "/" + parts[0..index].join('/'))
-          end
+          name ||= I18n.t("activerecord.models.#{part.singularize}", :count => 1.1, :default => part.titlecase)
+
+          crumbs << link_to( name, "/" + parts[0..index].join('/'))
         end
         crumbs
       end

lib/active_admin/views/components/paginated_collection.rb

@@ -89,19 +89,14 @@ def build_download_format_links(formats = [:csv, :xml, :json])
       def page_entries_info(options = {})
         if options[:entry_name]
           entry_name = options[:entry_name]
-          entries_name = options[:entries_name]
+          entries_name = options[:entries_name] || entry_name.pluralize
         elsif collection.empty?
           entry_name = I18n.translate("active_admin.pagination.entry", :count => 1, :default => 'entry')
           entries_name = I18n.translate("active_admin.pagination.entry", :count => 2, :default => 'entries')
         else
-          begin
-            entry_name = I18n.translate!("activerecord.models.#{collection.first.class.model_name.i18n_key}", :count => 1)
-            entries_name = I18n.translate!("activerecord.models.#{collection.first.class.model_name.i18n_key}", :count => collection.size)
-          rescue I18n::MissingTranslationData
-            entry_name = collection.first.class.name.underscore.sub('_', ' ')
-          end
+          entry_name = I18n.translate("activerecord.models.#{collection.first.class.model_name.i18n_key}", :count => 1, :default => collection.first.class.name.underscore.sub('_', ' '))
+          entries_name = I18n.translate("activerecord.models.#{collection.first.class.model_name.i18n_key}", :count => collection.size, :default => entry_name.pluralize)
         end
-        entries_name = entry_name.pluralize unless entries_name
 
         if collection.num_pages < 2
           case collection.size

lib/active_admin/views/components/scopes.rb

@@ -28,11 +28,7 @@ def build(scopes, options = {})
 
       def build_scope(scope, options)
         li :class => classes_for_scope(scope) do
-          begin
-            scope_name = I18n.t!("active_admin.scopes.#{scope.id}")
-          rescue I18n::MissingTranslationData
-            scope_name = scope.name
-          end
+          scope_name = I18n.t("active_admin.scopes.#{scope.id}", :default => scope.name)
 
           a :href => url_for(params.merge(:scope => scope.id, :page => 1)), :class => "table_tools_button" do
             text_node scope_name

lib/active_admin/views/dashboard_section_renderer.rb

@@ -11,11 +11,7 @@ def build(section)
       protected
 
       def title
-        begin
-          I18n.t!("active_admin.sections.#{@section.name.to_s}")
-        rescue I18n::MissingTranslationData
-          @section.name.to_s.titleize
-        end		  
+        I18n.t("active_admin.sections.#{@section.name.to_s}", :default => @section.name.to_s.titleize)
       end
 
     end