### Home Classes Methods

### In Files

- lib/ramaze/helper/simple_captcha.rb

### Methods

- #check_captcha
- #simple_captcha

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- Ramaze::Traited

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No matching classes.

# Ramaze::Helper::SimpleCaptcha

Produce very simple question/answer pairs.

The default is a trivial mathematical problem.

Usage (trait is optional):

    class RegisterController < Ramaze::Controller
      trait :captcha => lambda{
        ["the answer to everything", "42"]
      }

      def index
        %(
          <form action="#{r(:answer}">
            What is #{simple_captcha}?
            <input type="text" name="answer" />"
            <input type="submit" />
          </form>
        ).strip
      end

      def answer
        check_captcha(request[:answer])
      end
    end

### Constants

NUMBERS

### Public Instance Methods

check_captcha(answer) click to toggle source

check the given `answer` against the answer stored in the session.

    # File lib/ramaze/helper/simple_captcha.rb, line 54
    def check_captcha(answer)
      return false unless captcha = session[:CAPTCHA]

      answer.to_s.strip == captcha[:answer].to_s
    end

simple_captcha() click to toggle source

Call the trait and store question/answer in session

    # File lib/ramaze/helper/simple_captcha.rb, line 46
    def simple_captcha
      question, answer  = ancestral_trait[:captcha].call
      session[:CAPTCHA] = { :question => question, :answer => answer.to_s }

      question
    end

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