Class: StrongerParameters::NilStringConstraint

Inherits:
Constraint
  • Object
show all
Defined in:
lib/stronger_parameters/constraints/nil_string_constraint.rb

Constant Summary collapse

NULL_VALUES = 
[nil, '', 'undefined'].freeze

Instance Method Summary collapse

Methods inherited from Constraint

#&, #==, #|

Instance Method Details

#value(v) ⇒ Object 



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# File 'lib/stronger_parameters/constraints/nil_string_constraint.rb', line 8

def value(v)
  if NULL_VALUES.include?(v)
    nil
  else
    StrongerParameters::InvalidValue.new(v, "must be a nil string")
  end
end