Module: StackableFlash::StackLayer

Defined in:
lib/stackable_flash/stack_layer.rb

Instance Method Summary collapse

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/stackable_flash/stack_layer.rb', line 6

def [](key)
  if StackableFlash.stacking
    #Do it in a non-stacking block so we get normal behavior from flash[:notice] calls
    StackableFlash.not_stacked do
      actual = super(key)
      if actual.nil?
        send(:[]=, key, StackableFlash::FlashStack.new)
      end
    end
  else
    # All StackableFlash functionality is completely bypassed
    super(key)
  end
  return super(key)
end

#[]=(key, value) ⇒ Object

Make an array at the key, while providing a seamless upgrade to existing flashes

Initial set to Array

Principle of least surprise flash = [‘message1’,‘message2’] flash # => [‘message1’,‘message2’]

Initial set to String

Principle of least surprise flash = ‘original’ flash # => [‘original’]

Overwrite!

Principle of least surprise flash = ‘original’ flash = ‘altered’ flash # => [‘altered’]

The same line of code does all of the above. Leave existing behavior in place, but send the full array as the value so it doesn’t get killed.



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# File 'lib/stackable_flash/stack_layer.rb', line 45

def []=(key, value)
  if StackableFlash.stacking
    super(key,
      StackableFlash::FlashStack.new.replace(
        value.kind_of?(Array) ?
          value :
          # Preserves nil values in the result... I suppose that's OK, users can compact if needed :)
          Array.new(1, value)
      )
    )
  else
    # All StackableFlash functionality is completely bypassed
    super(key, value)
  end
end