jrochkind

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

dhh

class PostsController < ActionController::Base
  def create
    Post.create(post_params)
  end
  
  def update
    Post.find(params[:id]).update_attributes!(post_params)
  end

  private

wycats

Proposal for Improving Mass Assignment

For a while, I have felt that the following is the correct way to improve the mass assignment problem without increasing the burden on new users. Now that the problem with the Rails default has been brought up again, it's a good time to revisit it.

Sign Allowed Fields

When creating a form with form_for, include a signed token including all of the fields that were created at form creation time. Only these fields are allowed.

To allow new known fields to be added via JS, we could add:

kagemusha

Tested on: Rails 3.1

If have error:

ActionDispatch::Session::SessionRestoreError (Session contains objects whose class definition isn't available.
Remember to require the classes for all objects kept in the session.

can fix by changing a char in secret token in initializers/secret_token.rb

    MyApp::Application.config.secret_token

t2

ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
 html = %(<div class="field_with_errors">#{html_tag}</div>).html_safe
 # add nokogiri gem to Gemfile
 elements = Nokogiri::HTML::DocumentFragment.parse(html_tag).css "label, input"
 elements.each do |e|
   if e.node_name.eql? 'label'
     html = %(<div class="clearfix error">#{e}</div>).html_safe
   elsif e.node_name.eql? 'input'
     if instance.error_message.kind_of?(Array)
       html = %(<div class="clearfix error">#{html_tag}<span class="help-inline">&nbsp;#{instance.error_message.join(',')}</span></div>).html_safe

chrisgaunt

Run from the root of the engine project:

rails generate cucumber:install --capybara

Edit features/support/env.rb and add to the top:

ENV["RAILS_ENV"] ||= "test"
require File.expand_path("../../../test/dummy/config/environment.rb",  __FILE__)
ENV["RAILS_ROOT"] ||= File.dirname(__FILE__) + "../../../test/dummy"

jkraemer

# This file is used by Rack-based servers to start the application.

require ::File.expand_path('../config/environment',  __FILE__)

require ::File.expand_path('../lib/devise_basic_auth_fix',  __FILE__)
use DeviseBasicAuthFix

run MyApp::Application