class JsonTableSchema::Types::Number

Public Class Methods

supported_constraints() click to toggle source
# File lib/jsontableschema/types/number.rb, line 9
def self.supported_constraints
  [
    'required',
    'pattern',
    'enum',
    'minimum',
    'maximum',
  ]
end

Public Instance Methods

cast_currency(value) click to toggle source
# File lib/jsontableschema/types/number.rb, line 37
def cast_currency(value)
  cast_default(value)
rescue JsonTableSchema::InvalidCast
  value = preprocess_value(value)
  re = Regexp.new currency_symbols.join('|')
  value.gsub!(re, '')
  cast_default(value)
end
cast_default(value) click to toggle source
# File lib/jsontableschema/types/number.rb, line 27
def cast_default(value)
  return value if value.class == type
  return Float(value) if value.class == ::Fixnum

  value = preprocess_value(value)
  return Float(value)
rescue ArgumentError
  raise JsonTableSchema::InvalidCast.new("#{value} is not a #{name}")
end
currency_symbols() click to toggle source
# File lib/jsontableschema/types/number.rb, line 23
def currency_symbols
  ISO4217::Currency.currencies.to_a.map { |c| Regexp.escape(c.last.symbol) rescue nil }.delete_if { |s| s.nil? }
end
name() click to toggle source
# File lib/jsontableschema/types/number.rb, line 5
def name
  'number'
end
type() click to toggle source
# File lib/jsontableschema/types/number.rb, line 19
def type
  ::Float
end

Private Instance Methods

preprocess_value(value) click to toggle source
# File lib/jsontableschema/types/number.rb, line 48
def preprocess_value(value)
  group_char = @field.fetch('groupChar', ',')
  decimal_char = @field.fetch('decimalChar', '.')
  percent_char = /%|‰|‱|%|﹪|٪/
  value.gsub(group_char, '')
       .gsub(decimal_char, '.')
       .gsub(percent_char, '')
       .gsub(Regexp.new(currency_symbols.join '|'), '')
end