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module SimpleCaptcha #:nodoc
module ControllerHelpers #:nodoc
# This method is to validate the simple captcha in controller.
# It means when the captcha is controller based i.e. :object has not been passed to the method show_simple_captcha.
#
# *Example*
#
# If you want to save an object say @user only if the captcha is validated then do like this in action...
#
# if simple_captcha_valid?
# @user.save
# else
# flash[:notice] = "captcha did not match"
# redirect_to :action => "myaction"
# end
def simple_captcha_valid?
return true if SimpleCaptcha.always_pass
return @_simple_captcha_result unless !defined?(@_simple_captcha_result) || @_simple_captcha_result.nil?
if params[:captcha]
captcha_key = params[:captcha_key] || session[:captcha]
data = SimpleCaptcha::Utils::simple_captcha_value(captcha_key)
result = data == params[:captcha].delete(" ").upcase
SimpleCaptcha::Utils::simple_captcha_passed!(captcha_key) if result
@_simple_captcha_result = result
result
else
false
end
end
end
end
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