merb-recaptcha

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= merb-recaptcha

== About

Merb-recaptcha is plugin for Merb web-framework. It provides view and controller helpers for Recaptcha service.

== Installation

Install gem from github.com: gem install merb-recaptcha --source=http://gemcutter.org

Add following line in config/dependencies.rb of your web application: dependency "merb-recaptcha", "~> 1.0.0", :require_as => "merb-recaptcha"

Sign up at Recaptcha and get public and private keys. Add keys in config/init.rb: Merb::BootLoader.after_app_loads do Merb::Plugins.config[:merb_recaptcha][:public_key] = "... here your public key ..." Merb::Plugins.config[:merb_recaptcha][:private_key] = "... here your private key ..." end

== Usage

Just add helper in your form: <%= form_for @users, :action => resource(:users), :method => :post do %> ..... <%= recaptcha_tags %> <%= submit "Send" %> <% end %>

And then check captcha in controller: class Users < Application ...... def create(user) @user = User.new(user) if (captcha_correct = recaptcha_valid?) && @user.save redirect resource(@user) else unless captcha_correct @user.valid? @user.errors.add(:general, "Captcha code is incorrect") end end render :new end ...... end