Class: Scraprr::RequiredFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/scraprr/required_filter.rb

Instance Method Summary collapse

Constructor Details

#initialize(chain, name) ⇒ RequiredFilter

Returns a new instance of RequiredFilter.



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# File 'lib/scraprr/required_filter.rb', line 3

def initialize(chain, name)
  @chain = chain
  @name = name
end

Instance Method Details

#run(value) ⇒ Object 



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# File 'lib/scraprr/required_filter.rb', line 8

def run(value)
  value = @chain.run(value)
  if value == nil || value == ''
    raise MissingAttributeError.new "#{@name} has empty value"
  end
  value
end