Class: Aequitas::Rule::Block

Inherits:
Aequitas::Rule show all
Defined in:
lib/aequitas/rule/block.rb

Instance Attribute Summary collapse

Attributes inherited from Aequitas::Rule

#attribute_name, #custom_message, #guard, #skip_condition

Attributes included from Equalizable

#equalizer

Instance Method Summary collapse

Methods inherited from Aequitas::Rule

#attribute_value, #execute?, rules_for, #skip?, #violation_data, #violation_info, #violation_values

Methods included from Equalizable

#equalize_on

Constructor Details

#initialize(attribute_name, options, &block) ⇒ Block

Returns a new instance of Block.



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# File 'lib/aequitas/rule/block.rb', line 11

def initialize(attribute_name, options, &block)
  unless block_given?
    raise ArgumentError, 'cannot initialize a Block validator without a block'
  end

  super

  @block = block
end

Instance Attribute Details

#block ⇒ Object (readonly)

Returns the value of attribute block.



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# File 'lib/aequitas/rule/block.rb', line 9

def block
  @block
end

Instance Method Details

#validate(resource) ⇒ Object 



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# File 'lib/aequitas/rule/block.rb', line 21

def validate(resource)
  result, error_message = resource.instance_eval(&self.block)

  if result
    nil
  else
    Violation.new(resource, error_message, self)
  end
end