Class: Validatable::ValidatesPresenceOf

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

Overview

:nodoc:

Instance Attribute Summary

Attributes inherited from ValidationBase

#attribute

Instance Method Summary collapse

Methods inherited from ValidationBase

after_validate, after_validations, all_after_validations, all_defaults, default, defaults, #initialize, option, #raise_error_if_key_is_dup, required_option, #run_after_validate, #should_validate?, #validate_this_time?

Methods included from Requireable

included, #requires

Methods included from Understandable

included, #must_understand

Constructor Details

This class inherits a constructor from Validatable::ValidationBase

Instance Method Details

#message(instance) ⇒ Object 



12
13
14
 
# File 'lib/validations/validates_presence_of.rb', line 12

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

#valid?(instance) ⇒ Boolean

Returns:

  • (Boolean) 


3
4
5
6
7
8
9
10
 
# File 'lib/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.blank?

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