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Methods
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Included Modules

Instance Public methods

[](k)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 161
def [](k)
  @flashes[k.to_s]
end

[]=(k, v)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 155
def []=(k, v)
  k = k.to_s
  @discard.delete k
  @flashes[k] = v
end

alert()

Convenience accessor for flash[:alert].

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 262
def alert
  self[:alert]
end

alert=(message)

Convenience accessor for flash[:alert]=.

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 267
def alert=(message)
  self[:alert] = message
end

clear()

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 194
def clear
  @discard.clear
  @flashes.clear
end

delete(key)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 179
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

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 247
def discard(k = nil)
  k = k.to_s if k
  @discard.merge Array(k || keys)
  k ? self[k] : self
end

each(&block)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 199
def each(&block)
  @flashes.each(&block)
end

empty?()

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 190
def empty?
  @flashes.empty?
end

initialize_copy(other)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 147
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

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 237
def keep(k = nil)
  k = k.to_s if k
  @discard.subtract Array(k || keys)
  k ? self[k] : self
end

key?(name)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 175
def key?(name)
  @flashes.key? name.to_s
end

keys()

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 171
def keys
  @flashes.keys
end

notice()

Convenience accessor for flash[:notice].

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 272
def notice
  self[:notice]
end

notice=(message)

Convenience accessor for flash[:notice]=.

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 277
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!"

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 229
def now
  @now ||= FlashNow.new(self)
end

to_hash()

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 186
def to_hash
  @flashes.dup
end

Instance Protected methods

now_is_loaded?()

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 282
def now_is_loaded?
  @now
end

Instance Private methods

stringify_array(array)

Source: show | on GitHub 

# File rails/actionpack/lib/action_dispatch/middleware/flash.rb, line 287
def stringify_array(array) # :doc:
  array.map do |item|
    item.kind_of?(Symbol) ? item.to_s : item
  end
end