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Methods
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Included Modules
Instance Public methods
[](k)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 129
def [](k)
  @flashes[k.to_s]
end
[]=(k, v)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 123
def []=(k, v)
  k = k.to_s
  @discard.delete k
  @flashes[k] = v
end
alert()

Convenience accessor for flash[:alert].

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 230
def alert
  self[:alert]
end
alert=(message)

Convenience accessor for flash[:alert]=.

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 235
def alert=(message)
  self[:alert] = message
end
clear()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 162
def clear
  @discard.clear
  @flashes.clear
end
delete(key)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 147
def delete(key)
  key = key.to_s
  @discard.delete key
  @flashes.delete key
  self
end
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
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 215
def discard(k = nil)
  k = k.to_s if k
  @discard.merge Array(k || keys)
  k ? self[k] : self
end
each(&block)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 167
def each(&block)
  @flashes.each(&block)
end
empty?()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 158
def empty?
  @flashes.empty?
end
initialize_copy(other)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 115
def initialize_copy(other)
  if other.now_is_loaded?
    @now = other.now.dup
    @now.flash = self
  end
  super
end
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
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 205
def keep(k = nil)
  k = k.to_s if k
  @discard.subtract Array(k || keys)
  k ? self[k] : self
end
key?(name)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 143
def key?(name)
  @flashes.key? name.to_s
end
keys()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 139
def keys
  @flashes.keys
end
notice()

Convenience accessor for flash[:notice].

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 240
def notice
  self[:notice]
end
notice=(message)

Convenience accessor for flash[:notice]=.

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 245
def notice=(message)
  self[:notice] = message
end
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!"
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 197
def now
  @now ||= FlashNow.new(self)
end
to_hash()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 154
def to_hash
  @flashes.dup
end
Instance Protected methods
now_is_loaded?()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 250
def now_is_loaded?
  @now
end
stringify_array(array)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 254
def stringify_array(array)
  array.map do |item|
    item.kind_of?(Symbol) ? item.to_s : item
  end
end