Class: WhyValidationsSuckIn96::ValidatesLength

Inherits:
WhyValidationsSuckIn96::Validation show all
Includes:
WhyValidationsSuckIn96::AttributeBasedValidation, WhyValidationsSuckIn96::SkippableValidation
Defined in:
lib/whyvalidationssuckin96/macros/validates_length.rb

Overview

Checks the validity of an attribute against a given set of sizes.

Examples:

Checking against an exact value 

  setup_validations do
    validates_length_of :choices, :is => 4
  end

Checking against a range 

  setup_validations do
    validates_length_of :choices, :in => 1..10
  end

Checking against a minimum value 

  setup_validations do
    validates_length_of :choices, :minimum => 1
  end

Checking against a maximum value 

  setup_validations do
    validates_length_of :choices, :maximum => 10
  end

Checking against a minimum and maximum value 

  setup_validations do
    validates_length_of :choices, :minimum => 1, :maximum => 10
  end

Constant Summary

DefaultOptions = 
{:message => "does not meet the given length restrictions"}
ValidOptions = 
[:is, :in, :minimum, :maximum]
OptionIncompatibility = 
{
  :is => [:minimum, :maximum, :in],
  :in => [:minimum, :maximum, :is]
}

Constants inherited from WhyValidationsSuckIn96::Validation

DefaultOptions

Instance Method Summary

Methods included from WhyValidationsSuckIn96::AttributeBasedValidation

#attribute, #attribute_value

Methods inherited from WhyValidationsSuckIn96::Validation

#failed?, #has_run?, #message, new_subclass, #passed?, #validates?

Constructor Details

- (ValidatesLength) initialize(validatable, options = {})

A new instance of ValidatesLength

Parameters:

  • (Object) validatable — An object to be validated.
  • (Hash) options (defaults to: {}) — The options to set up the validation with.

Options Hash (options):

  • (#==] :is An exact value to check the validatable object's #size against.) #==] N/A — :is An exact value to check the validatable object’s #size against.
  • (#include?) :in N/A — A range to check the validatable object’s #size against.
  • (#<=] :minimum A minimum value to check the validatable object's size against.) #<=] N/A — :minimum A minimum value to check the validatable object’s size against.
  • (#) =] N/A — :maximum A maximum value to check the validatable object’s size against. 


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# File 'lib/whyvalidationssuckin96/macros/validates_length.rb', line 49

def initialize(validatable, options = {})
  super
  check_options(options)
end

Instance Method Details

- (Object) validate 



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# File 'lib/whyvalidationssuckin96/macros/validates_length.rb', line 54

def validate
  super
  all_valid = ValidOptions.collect do |opt_name|
    next(true) if options[opt_name].nil?
    send(:"validate_#{opt_name}")
  end.all?
  all_valid ? pass : fail
end