Locomotive CMS

Today, I found a really good CMS. I'm looking for ruby 3 CMS for a while. I found this CMS solution that use my favorite NoSQL database system: MongoDB. I think multi site feature is rare in ror applications. Locomotive CMS do it.

Locomotive is an open source CMS for Rails 3. It's super flexible and integrates with Heroku and Amazon

Some features from technical Specs:

Blog categories:  Web development

Resolve Ruby on Rails UTF-8 error message: invalid multibyte char (US-ASCII)

I got the following error when i run a rake db:seed command on may RoR application:
invalid multibyte char (US-ASCII)

I found the soution and the error has gone away:
You should add a line to your file:

# encoding: utf-8

You can change the utf-8 to any other encoding that you use.
I added this line to my seeds.rb file and all UTF-8 code have been executed without errors.

Rails 3 Content Management Systems (CMS) - 2011

I've collected all open source CMS based on rails 3.x.

Rails CMS/Wiki/Forum

This is a very simple but feature rich CMS framework. It is good startpoint for a new rails project what will be wiki, Forum or CMS

Source: https://github.com/jlapier/Rails-CMS-Wiki-Forum

Casein CMS

This is a very minimal and lightweight CMS. Only users table created on rak db:migrate. It is a good start point for any content based application. This application scaffolding your rails app with a very beauty user interface.

how to install Ruby on rails webshop?

You have installed RoR3 and now you want to install a rails3 webshop.

I think the best solution is Spree. This is the only rails3 based e-commerce solution at this time.

How do you install this shop?

rails new rails3-shop
cd rails3-shop

edit Gemfile and add new line

gem 'spree'

Install new spree site.

rails g spree:site
rake spree:install
rake db:migrate
rake db:seed
rails server

The rails server command starts the webrick server. You should go to http://localhost:3000/ to check spree.

Deploy rack applciaton

Make config.ru with following content:

require 'rubygems'
require 'sinatra'
require './my_sinatra_application.rb'

run Sinatra::Application

You have to run bundle command. This will be install all necessary gems that listed in Gemfile.

You find debug log in default apache 2 error log files. This is /var/log/apache2/error.log in my case.

RMagick install on Ubuntu 10.10 and 10.04

This small tutorial work on Ubuntu Hardy (8.04), Lucid 10.04 and Maverick (10.10)

Install Imagemagick and GraphicsMagick

apt-get install imagemagick graphicsmagick

Install Image Magick development files

apt-get install libmagickcore-dev libmagickwand-dev
gem install rmagick

On Hardy:
Install imagemagick from source and after it install development files:

Blog categories:  Linux  Unix admin

How to use Padrino with mongodb

Padrino is a ruby framework built upon the excellent Sinatra Microframework.

$ padrino g project blog -d mongomapper -t rspec -s jquery -e haml -c compass
create config.ru
create public/favicon.ico
create config/apps.rb
create config/boot.rb
create app
create app/app.rb
create app/controllers
create app/helpers
create .components
create Gemfile
Applying 'mongomapper' (orm)...
apply orms/mongomapper
inject Gemfile

Blog categories:  Web development
Blog tags:  ruby  padrino

How to install Phusion Passenger for ruby 1.9.2

There are some easy steps to install Phusion Passenger for ruby 1.9.2 and apache2 on Ubuntu Linux.

1. Install rvm system wide

sudo bash < <( curl -L http://bit.ly/rvm-install-system-wide )

2. Install ruby 1.9.2

rvm install 1.9.2

3. add new line in /etc/bash.bashrc

[[ -s /usr/local/lib/rvm ]] && . /usr/local/lib/rvm

4. install passenger

sudo -i # you need root shell
rvm use 1.9.2-p0@global # or your version, use: rvm list

How to generate dynamic javascript files with Ruby on Rails?

The problem

I want to write JavaScript files that use dynamic informations via Ruby on Rails. I think my solution also works with rails 2 and 3.
What can dynamic JavaScript do for you? You can write JavaScript on your ERB (embedded ruby) file beside HTML code. This is very simple, but not the best solution for a longer jQuery script.
For example:
Translation in JavaScript: translation with I18n.t() Rails method would be great in separated JavaScript file with ERB capability.

// some jquery code before alert