Methods

Included Modules

Instance Public methods

[](k)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 162
      def [](k)
        @flashes[k.to_s]
      end
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[]=(k, v)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 156
      def []=(k, v)
        k = k.to_s
        @discard.delete k
        @flashes[k] = v
      end
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alert()

Convenience accessor for flash[:alert].

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 268
      def alert
        self[:alert]
      end
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alert=(message)

Convenience accessor for flash[:alert]=.

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 273
      def alert=(message)
        self[:alert] = message
      end
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clear()

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 197
      def clear
        @discard.clear
        @flashes.clear
      end
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delete(key)

Immediately deletes the single flash entry. Use this method when you want remove the message within the current action. See also discard.

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 182
      def delete(key)
        key = key.to_s
        @discard.delete key
        @flashes.delete key
        self
      end
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discard(k = nil)

Marks the entire flash or a single flash entry to be discarded by the end of the current action:

flash.discard              # discard the entire flash at the end of the current action
flash.discard(:warning)    # discard only the "warning" entry at the end of the current action

Use this method when you want to display the message in the current action but not in the next one. See also delete.

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 253
      def discard(k = nil)
        k = k.to_s if k
        @discard.merge Array(k || keys)
        k ? self[k] : self
      end
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each(&block)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 202
      def each(&block)
        @flashes.each(&block)
      end
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empty?()

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 193
      def empty?
        @flashes.empty?
      end
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initialize_copy(other)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 148
      def initialize_copy(other)
        if other.now_is_loaded?
          @now = other.now.dup
          @now.flash = self
        end
        super
      end
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keep(k = nil)

Keeps either the entire current flash or a specific flash entry available for the next action:

flash.keep            # keeps the entire flash
flash.keep(:notice)   # keeps only the "notice" entry, the rest of the flash is discarded
📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 240
      def keep(k = nil)
        k = k.to_s if k
        @discard.subtract Array(k || keys)
        k ? self[k] : self
      end
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key?(name)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 176
      def key?(name)
        @flashes.key? name.to_s
      end
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keys()

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 172
      def keys
        @flashes.keys
      end
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notice()

Convenience accessor for flash[:notice].

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 278
      def notice
        self[:notice]
      end
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notice=(message)

Convenience accessor for flash[:notice]=.

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 283
      def notice=(message)
        self[:notice] = message
      end
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now()

Sets a flash that will not be available to the next action, only to the current.

flash.now[:message] = "Hello current action"

This method enables you to use the flash as a central messaging system in your app. When you need to pass an object to the next action, you use the standard flash assign ([]=). When you need to pass an object to the current action, you use now, and your object will vanish when the current action is done.

Entries set via now are accessed the same way as standard entries: flash['my-key'].

Also, brings two convenience accessors:

flash.now.alert = "Beware now!"
# Equivalent to flash.now[:alert] = "Beware now!"

flash.now.notice = "Good luck now!"
# Equivalent to flash.now[:notice] = "Good luck now!"
📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 232
      def now
        @now ||= FlashNow.new(self)
      end
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to_hash()

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 189
      def to_hash
        @flashes.dup
      end
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Instance Protected methods

now_is_loaded?()

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 288
        def now_is_loaded?
          @now
        end
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Instance Private methods

stringify_array(array)

📝 Source code 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 293
        def stringify_array(array) # :doc:
          array.map do |item|
            item.kind_of?(Symbol) ? item.to_s : item
          end
        end
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