Class: Mutations::FloatFilter

Inherits:
AdditionalFilter show all
Defined in:
lib/mutations/float_filter.rb

Instance Attribute Summary

Attributes inherited from InputFilter

#options

Instance Method Summary collapse

Methods inherited from AdditionalFilter

inherited

Methods inherited from InputFilter

#default, default_options, #discard_empty?, #discard_invalid?, #discard_nils?, #has_default?, #initialize

Constructor Details

This class inherits a constructor from Mutations::InputFilter

Instance Method Details

#filter(data) ⇒ Object 



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# File 'lib/mutations/float_filter.rb', line 9

def filter(data)

  # Handle nil case
  if data.nil?
    return [nil, nil] if options[:nils]
    return [nil, :nils]
  end
  
  # Now check if it's empty:
  return [data, :empty] if data == ""

  # Ensure it's the correct data type (Float)
  if !data.is_a?(Float)
    if data.is_a?(String) && data =~ /^[-+]?\d*\.?\d+/
      data = data.to_f
    elsif data.is_a?(Integer)
      data = data.to_f
    else
      return [data, :float]
    end
  end

  return [data, :min] if options[:min] && data < options[:min]
  return [data, :max] if options[:max] && data > options[:max]

  # We win, it's valid!
  [data, nil]
end