class TableSchema::Types::Number

Public Class Methods

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

Public Instance Methods

cast_default(value) click to toggle source
# File lib/tableschema/types/number.rb, line 25
def cast_default(value)
  case value
  when type
    value
  when ::Integer
    Float(value)
  when ::String
    process_string(value)
  end
rescue ArgumentError
  raise TableSchema::InvalidCast.new("#{value} is not a #{name}")
end
name() click to toggle source
# File lib/tableschema/types/number.rb, line 5
def name
  'number'
end
type() click to toggle source
# File lib/tableschema/types/number.rb, line 20
def type
  ::Float
end

Private Instance Methods

process_string(value) click to toggle source
# File lib/tableschema/types/number.rb, line 40
def process_string(value)
  case value
  when 'NaN'
    Float::NAN
  when '-INF'
    -Float::INFINITY
  when 'INF'
    Float::INFINITY
  else
    group_char = @field.fetch(:groupChar, TableSchema::DEFAULTS[:group_char])
    decimal_char = @field.fetch(:decimalChar, TableSchema::DEFAULTS[:decimal_char])
    bare_number = @field.fetch(:bareNumber, TableSchema::DEFAULTS[:bare_number])
    formatted_value = value
    formatted_value = formatted_value.gsub(group_char, '')
    formatted_value = formatted_value.gsub(decimal_char, '.')
    if !bare_number
      formatted_value = formatted_value.gsub(/((^\D*)|(\D*$))/, '')
    end
    Float(formatted_value)
  end
end