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Methods
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Included Modules
Instance Public methods
[](k)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 123
def [](k)
  @flashes[k.to_s]
end
[]=(k, v)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 117
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 224
def alert
  self[:alert]
end
alert=(message)

Convenience accessor for flash[:alert]=.

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 229
def alert=(message)
  self[:alert] = message
end
clear()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 156
def clear
  @discard.clear
  @flashes.clear
end
delete(key)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 141
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 209
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 161
def each(&block)
  @flashes.each(&block)
end
empty?()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 152
def empty?
  @flashes.empty?
end
initialize_copy(other)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 109
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 199
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 137
def key?(name)
  @flashes.key? name.to_s
end
keys()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 133
def keys
  @flashes.keys
end
notice()

Convenience accessor for flash[:notice].

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 234
def notice
  self[:notice]
end
notice=(message)

Convenience accessor for flash[:notice]=.

# File actionpack/lib/action_dispatch/middleware/flash.rb, line 239
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 191
def now
  @now ||= FlashNow.new(self)
end
to_hash()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 148
def to_hash
  @flashes.dup
end
Instance Protected methods
now_is_loaded?()
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 244
def now_is_loaded?
  @now
end
stringify_array(array)
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 248
def stringify_array(array)
  array.map do |item|
    item.kind_of?(Symbol) ? item.to_s : item
  end
end