Class: Validatable::ValidatesPresenceOf

Inherits:
ValidationBase show all
Defined in:
lib/validatable/validations/validates_presence_of.rb

Overview

:nodoc:

Instance Attribute Summary

Attributes inherited from ValidationBase

#after_validate, #allow_blank, #allow_nil, #attribute, #if, #klass

Instance Method Summary collapse

Methods inherited from ValidationBase

#initialize, #validate

Constructor Details

This class inherits a constructor from Validatable::ValidationBase

Instance Method Details

#message(instance) ⇒ Object 



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# File 'lib/validatable/validations/validates_presence_of.rb', line 12

def message(instance)
  super || "can't be empty"
end

#valid?(instance) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validatable/validations/validates_presence_of.rb', line 3

def valid?(instance)
  value = instance.send(self.attribute)
  return true if allow_nil && value.nil?
  return true if allow_blank && (!value or (value.respond_to?(:empty?) and value.empty?))

  return false if instance.send(self.attribute).nil?
  value.respond_to?(:strip) ? instance.send(self.attribute).strip.length != 0 : true
end