Class: MVCLI::Form::Input::Target

Inherits:
Object
  • Object
show all
Defined in:
lib/mvcli/form/input.rb

Direct Known Subclasses

ListTarget

Instance Method Summary collapse

Constructor Details

#initialize(name, target, options = {}, &block) ⇒ Target

Returns a new instance of Target.



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# File 'lib/mvcli/form/input.rb', line 24

def initialize(name, target, options = {}, &block)
  @name, @options = name, Map(options)
  @decoders = []
  if block_given?
    @decoders << block
  end
end

Instance Method Details

#decode(&block) ⇒ Object 



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# File 'lib/mvcli/form/input.rb', line 32

def decode(&block)
  @decoders << block
end

#default(context) ⇒ Object 



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# File 'lib/mvcli/form/input.rb', line 46

def default(context)
  value = @options[:default]
  if value.respond_to?(:call)
    if context
      context.instance_exec(&value)
    else
      value.call
    end
  else
    value
  end
end

#value(source, context = nil) ⇒ Object 



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# File 'lib/mvcli/form/input.rb', line 36

def value(source, context = nil)
  if value = [source[@name]].flatten.first
    @decoders.reduce(value) do |value, decoder|
      decoder.call value
    end
  else
    default context
  end
end