Module: Instrument::ControlBuilder

Defined in:
lib/instrument/control_builder.rb

Overview

A module which you can mixin to allow for abbreviated control creation.

Example

include Instrument::ControlBuilder

select_control(:name => "base", :selections => [
  {:label => "One", :value => "1"},
  {:label => "Two", :value => "2"},
  {:label => "Three", :value => "3"},
  {:label => "Four", :value => "4"}
]).to_xhtml

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *params, &block) ⇒ Object

Initializes Instrument::Control subclasses by name.

@param [Symbol] method the method being called
@param [Array] params the method's parameters
@param [Proc] block the block being passed to the method
@return [Instrument::Control] the control being created
@raise NoMethodError if the method wasn't handled



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# File 'lib/instrument/control_builder.rb', line 70

def method_missing(method, *params, &block)
  control_class = ::Instrument::Control.lookup(method.to_s)
  if control_class != nil
    return control_class.new(*params, &block)
  else
    raise NoMethodError,
      "undefined method `#{method}' for " +
      "#{self.inspect}:#{self.class.name}"
  end
end

Instance Method Details

#respond_to?(method, include_private = false) ⇒ Boolean

Returns true if the control builder responds to the given message.

@return [Boolean] if the control builder responds

Returns:

  • (Boolean) 


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# File 'lib/instrument/control_builder.rb', line 56

def respond_to?(method, include_private=false)
  control_class = ::Instrument::Control.lookup(method.to_s)
  return true if control_class != nil
  super
end

#select(*params, &block) ⇒ Object

Prevents Kernel#select from being accidentally called.

@param [Array] params the method's parameters
@param [Proc] block the block being passed to the method
@return [Instrument::Control] the control being created



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# File 'lib/instrument/control_builder.rb', line 48

def select(*params, &block) # :nodoc:
  return self.method_missing(:select, *params, &block)
end