A JSON String schema member. An enumeration (of sorts) - a list of discrete string values that are permitted for the value of a field of this type. Matches must be exact (case sensitive, no leading/trailing white space etc.). Allowed values are expressed as Ruby strings or symbols (converted to and matched as strings) via an array under key :from in the options hash provided to the constructor.

Methods
N
V
Attributes
[RW] from

Array of permitted enumeration values. This may be written with non-String values but they will be converted to Strings when read back.
Class Public methods
new( name, options = {} )

Initialize a String instance with the appropriate name and options.

name

The JSON key.

options

A Hash of options, e.g. :required => true, :from => [ :array, :of, :allowed, :enum, :values ].

Source: show 

# File lib/hoodoo/presenters/types/enum.rb, line 25
def initialize( name, options = {} )
  super( name, options )

  @from = options[ :from ]

  if @from.is_a?( ::Array )
    @from = @from.map { | entry | entry.to_s }
  else
    raise ArgumentError.new( 'Hoodoo::Presenters::Enum must have a :from array listing allowed values' )
  end
end
Instance Public methods
validate( data, path = '' )

Check if data is a valid String and return a Hoodoo::Errors instance.

Source: show 

# File lib/hoodoo/presenters/types/enum.rb, line 39
def validate( data, path = '' )
  errors = super( data, path )
  return errors if errors.has_errors? || ( ! @required && data.nil? )

  unless @from.include?( data )
    errors.add_error(
      'generic.invalid_enum',
      :message   => "Field `#{ full_path( path ) }` does not contain an allowed reference value from this list: `#{@from}`",
      :reference => { :field_name => full_path( path ) }
    )
  end

  errors
end