Class: VectorEmbed::Maker::Number

Inherits:
VectorEmbed::Maker show all
Defined in:
lib/vector_embed/maker/number.rb

Constant Summary collapse

FORMAT = 
'%.16g'

Instance Attribute Summary

Attributes inherited from VectorEmbed::Maker

#cardinality, #k, #options, #parent

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from VectorEmbed::Maker

#initialize, #pairs, pick

Constructor Details

This class inherits a constructor from VectorEmbed::Maker

Class Method Details

.numify(v) ⇒ Object 



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# File 'lib/vector_embed/maker/number.rb', line 16

def numify(v)
  num = if v.is_a?(String)
    if v.include?('.') or v.include?('e')
      v.to_f
    else
      v.to_i
    end
  else
    v
  end
end

.want?(v, parent) ⇒ Boolean 



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# File 'lib/vector_embed/maker/number.rb', line 7

def want?(v, parent)
  case v
  when Numeric, NilClass, NULL, SLASH_N
    true
  when String
    v =~ JUST_A_NUMBER or v =~ UGLY_FLOAT
  end
end

Instance Method Details

#keep_zero? ⇒ Boolean 



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# File 'lib/vector_embed/maker/number.rb', line 45

def keep_zero?
  return @keep_zero_query if defined?(@keep_zero_query)
  @keep_zero = options && !!options[:keep_zero]
end

#value(v) ⇒ Object 



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# File 'lib/vector_embed/maker/number.rb', line 31

def value(v)
  case v
  when Numeric, JUST_A_NUMBER, UGLY_FLOAT
    num = Number.numify v
    if num.nonzero? or keep_zero?
      FORMAT % num
    end
  when NilClass, NULL, SLASH_N
    keep_zero? ? 0 : nil
  else
    raise ArgumentError, "Can't embed #{v.inspect} in number feature #{k.inspect}"
  end
end