dalli_captcha

DalliCaptcha is a captcha engine base on Dalli for Rails 3.2. It provides simple captcha that can be read by human.

• DalliCaptcha is easy to setup, easy to use.
• DalliCaptcha provides simple captcha that can be read by human.
• You don't have to manage image files because they will be removed by Tempfile.
• The Captcha will be Expired automatically by setting expired_time.
• ......

• Ruby = ree
• Rails > 3.2
• Dalli > 2.4
• ImageMagick
• Memcache

I haven't tried lower version yet.

1. Add DalliCaptcha to your gemfile

  gem 'dalli_captcha'
or
  gem 'dalli_captcha',:git =>"git://github.com/javyliu/dalli_captcha.git"

2. Generate initializer

    rails g dalli_captcha:install

It'll generate config/initializers/dalli_captcha.rb, and you can configure all options here.

3. Mount DalliCaptcha::Engine in your router.rb

mount DalliCaptcha::Engine => '/captcha', :as => :captcha

4. Add before_filter to your controller

class PostsController < ApplicationController
    before_filter :generate_captcha_key, :only => [:new, :edit]
    ......
end

4. Add module to your model

class Post < ActiveRecord::Base
    include DalliCaptcha::Model
end

if you set config.active_record.whitelist_attributes = true in config/application.rb, remember to add attr_accessible to your model:

attr_accessible :captcha, :captcha_key

to your model.

5. Use DalliCaptcha in your view

<%= image_tag(captcha_path(:timestamp => Time.now.to_i), :alt => "captcha") %>
<%= f.text_field :captcha %>
<%= f.hidden_field :captcha_key, :value => session[:captcha_key] %>

6. Use DalliCaptcha in your controller

    # Initialize a post
    @post = Post.new(:title => "test")

    # valid with captcha
    @post.valid?

    # save with captcha
    @post.save

    # valid without captcha
    @post.valid_without_captcha?

    # save without captcha
    @post.save_without_captcha

Enjoy it!

• To add a simple site
• To write tests

0.0.1

First Version

• javy_liu@163.com
• http://hi.baidu.com/javyquan

This project rocks and uses MIT-LICENSE.