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module SimpleCaptcha #:nodoc
module ModelHelpers #:nodoc
def self.included(base)
base.extend(SingletonMethods)
end
# To implement model based simple captcha use this method in the model as...
#
# class User < ActiveRecord::Base
#
# apply_simple_captcha :message => "my customized message"
#
# end
#
# Customize the error message by using :message, the default message is "Captcha did not match".
# As in the applications captcha is needed with a very few cases like signing up the new user, but
# not every time you need to authenticate the captcha with @user.save. So as to maintain simplicity
# here we have the explicit method to save the instace with captcha validation as...
#
# * to validate the instance
#
# @user.valid_with_captcha? # whene captcha validation is required.
#
# @user.valid? # when captcha validation is not required.
#
# * to save the instance
#
# @user.save_with_captcha # whene captcha validation is required.
#
# @user.save # when captcha validation is not required.
module SingletonMethods
def apply_simple_captcha(options = {})
options = { :add_to_base => false }.merge(options)
class_attribute :simple_captcha_options
self.simple_captcha_options = options
unless self.is_a?(ClassMethods)
include InstanceMethods
extend ClassMethods
attr_accessor :captcha, :captcha_key
end
end
end
module ClassMethods
end
module InstanceMethods
def valid_with_captcha?
[valid?, is_captcha_valid?].all?
end
def is_captcha_valid?
return true if SimpleCaptcha.always_pass
if captcha && captcha.upcase.delete(" ") == SimpleCaptcha::Utils::simple_captcha_value(captcha_key)
SimpleCaptcha::Utils::simple_captcha_passed!(captcha_key)
return true
else
message = simple_captcha_options[:message] || I18n.t(self.class.model_name.to_s.downcase, :scope => [:simple_captcha, :message], :default => :default)
simple_captcha_options[:add_to_base] ? errors.add(:base, message) : errors.add(:captcha, message)
return false
end
end
def save_with_captcha
valid_with_captcha? && save(:validate => false)
end
end
end
end
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