Class: NotNaughty::NumericalityValidation

Inherits:
FormatValidation show all
Defined in:
lib/not_naughty/validations/numericality_validation.rb

Overview

Validates numericality of obj’s attribute via an regular expression.

Unless the validation succeeds an error hash (:attribute => :message) is added to the obj’s instance of Errors.

Options:

:only_integer

validates with /^[+-]?\d+$/ (false)

:message

see NotNaughty::Errors for details

:if

see NotNaughty::Validation::Condition for details

:unless

see NotNaughty::Validation::Condition for details

Example:

obj = '-12.2' #
def obj.errors() @errors ||= NotNauthy::Errors.new end

NumericalityValidation.new({}, :to_s).call obj, :to_s, '-12.2'
obj.errors.on(:to_s).any? # => false

NumericalityValidation.new({:only_integer => true}, :to_s).
  call obj, :to_s, '-12.2'

obj.errors.on(:to_s).any? # => true

Constant Summary

Constants inherited from FormatValidation

FormatValidation::PREDEFINED

Constants inherited from Validation

Validation::PATTERN

Instance Attribute Summary

Attributes inherited from Validation

#attributes

Instance Method Summary collapse

Methods inherited from Validation

#call_with_conditions, #call_without_conditions, inherited, load, load_paths, new

Constructor Details

#initialize(valid, attributes) ⇒ NumericalityValidation

:nodoc:



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# File 'lib/not_naughty/validations/numericality_validation.rb', line 30

def initialize(valid, attributes) #:nodoc:
  valid[:with] = if valid[:only_integer]
    valid[:message] ||= '%s is not an integer.'
    /^[+-]?\d+$/
  else
    valid[:message] ||= '%s is not a number.'
    /^[+-]?\d*\.?\d+$/
  end

  super valid, attributes
end