diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/middleware/flash.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/middleware/flash.rb | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/flash.rb b/actionpack/lib/action_dispatch/middleware/flash.rb index 4821d2a899..a7f95150a4 100644 --- a/actionpack/lib/action_dispatch/middleware/flash.rb +++ b/actionpack/lib/action_dispatch/middleware/flash.rb @@ -10,7 +10,7 @@ module ActionDispatch end end - # The flash provides a way to pass temporary objects between actions. Anything you place in the flash will be exposed + # The flash provides a way to pass temporary primitive-types (String, Array, Hash) between actions. Anything you place in the flash will be exposed # to the very next action and then cleared out. This is a great way of doing notices and alerts, such as a create # action that sets <tt>flash[:notice] = "Post successfully created"</tt> before redirecting to a display action that can # then expose the flash to its template. Actually, that exposure is automatically done. @@ -37,8 +37,11 @@ module ActionDispatch # flash.alert = "You must be logged in" # flash.notice = "Post successfully created" # - # This example just places a string in the flash, but you can put any object in there. And of course, you can put as - # many as you like at a time too. Just remember: They'll be gone by the time the next action has been performed. + # This example places a string in the flash. And of course, you can put as many as you like at a time too. If you want to pass + # non-primitive types, you will have to handle that in your application. Example: To show messages with links, you will have to + # use sanitize helper. + # + # Just remember: They'll be gone by the time the next action has been performed. # # See docs on the FlashHash class for more details about the flash. class Flash @@ -76,7 +79,7 @@ module ActionDispatch class FlashHash include Enumerable - def self.from_session_value(value) + def self.from_session_value(value) #:nodoc: flash = case value when FlashHash # Rails 3.1, 3.2 new(value.instance_variable_get(:@flashes), value.instance_variable_get(:@used)) @@ -88,8 +91,11 @@ module ActionDispatch flash.tap(&:sweep) end - - def to_session_value + + # Builds a hash containing the discarded values and the hashes + # representing the flashes. + # If there are no values in @flashes, returns nil. + def to_session_value #:nodoc: return nil if empty? {'discard' => @discard.to_a, 'flashes' => @flashes} end @@ -129,7 +135,7 @@ module ActionDispatch end def key?(name) - @flashes.key? name + @flashes.key? name.to_s end def delete(key) |