context.rb in hanami-2.1.0.rc3

- old
+ new

@@ -141,11 +141,18 @@
             #
             # @api public
             # @since 2.1.0
             def assets
               unless @assets
-                raise Hanami::ComponentLoadError, "the hanami-assets gem is required to access assets"
+                msg =
+                  if Hanami.bundled?("hanami-assets")
+                    "Have you put files into your assets directory?"
+                  else
+                    "The hanami-assets gem is required to access assets."
+                  end
+
+                raise Hanami::ComponentLoadError, "Assets not available. #{msg}"
               end
 
               @assets
             end
 
@@ -157,11 +164,11 @@
             #
             # @api public
             # @since 2.1.0
             def request
               unless @request
-                raise Hanami::ComponentLoadError, "only views rendered from Hanami::Action instances have a request"
+                raise Hanami::ComponentLoadError, "Request not available. Only views rendered from Hanami::Action instances have a request."
               end
 
               @request
             end
 
@@ -192,11 +199,11 @@
             #
             #   @example
             #     content_for(:page_title, "Hello world")
             #
             #   @example In a template
-            #     <% content_for :page_title do %>
+            #     <%= content_for :page_title do %>
             #       <h1>Hello world</h1>
             #     <% end %>
             #
             # @overload content_for(key)
             #   Returns the previously stored content for the given key.
@@ -209,11 +216,13 @@
             # @api public
             # @since 2.1.0
             def content_for(key, value = nil)
               if block_given?
                 @content_for[key] = yield
+                nil
               elsif value
                 @content_for[key] = value
+                nil
               else
                 @content_for[key]
               end
             end
 