Class: JsonTableSchema::Types::Null

Inherits:
Base
  • Object
show all
Defined in:
lib/jsontableschema/types/null.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#cast, #initialize, #set_format, #test

Methods included from Helpers

#convert_to_boolean, #false_values, #get_class_for_type, #true_values, #type_class_lookup

Constructor Details

This class inherits a constructor from JsonTableSchema::Types::Base

Class Method Details

.supported_constraints ⇒ Object 



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# File 'lib/jsontableschema/types/null.rb', line 9

def self.supported_constraints
  [
    'required',
    'pattern',
    'enum',
  ]
end

Instance Method Details

#cast_default(value) ⇒ Object 



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# File 'lib/jsontableschema/types/null.rb', line 25

def cast_default(value)
  if value.is_a?(type)
    return value
  elsif null_values.include?(value.to_s.downcase)
    nil
  else
    raise JsonTableSchema::InvalidCast.new("#{value} is not a #{name}")
  end
end

#name ⇒ Object 



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# File 'lib/jsontableschema/types/null.rb', line 5

def name
  'null'
end

#null_values ⇒ Object 



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# File 'lib/jsontableschema/types/null.rb', line 21

def null_values
  ['null', 'none', 'nil', 'nan', '-', '']
end

#type ⇒ Object 



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# File 'lib/jsontableschema/types/null.rb', line 17

def type
  ::NilClass
end