JosephPecoraro

# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro

cmd = "echo 'hi'" # Sample string that can be used

# 1. Kernel#` - commonly called backticks - `cmd` 
# This is like many other languages, including bash, PHP, and Perl
#   Synchronous (blocking)
#   Returns the output of the shell command
#   Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111

rogerleite

#!/bin/bash
# Install Monaco font in Linux
# Version from nullvideo https://gist.github.com/rogerleite/99819#gistcomment-2799386

sudo mkdir -p /usr/share/fonts/truetype/ttf-monaco && \
sudo wget https://gist.github.com/rogerleite/b50866eb7f7b5950da01ae8927c5bd61/raw/862b6c9437f534d5899e4e68d60f9bf22f356312/mfont.ttf -O - > \
/usr/share/fonts/truetype/ttf-monaco/Monaco_Linux.ttf && \
sudo fc-cache

akitaonrails

#!/usr/bin/env ruby
#
# Put this script in your PATH and download from onemanga.com like this:
#   onemanga_downloader.rb Bleach [chapter number]
#
# You will find the downloaded chapters under $HOME/Documents/OneManga/Bleach
#
# If you run this script without arguments, it will check your local manga downloads
# and check if there are any new chapters
#

rbarazi

class SessionsController < ApplicationController
  def create
    if user = User.authenticate(params[:email], params[:password])
      session[:user_id] = user.id
      redirect_to root_path, :notice => "Logged in successfully"
    else
      flash.now[:alert] = "Invalid login/password combination"
      render :action => 'new'
    end
  end

rbarazi

<h1>Login</h1>

<%= form_tag session_path do %>
  <div class="field">
    <%= label_tag :email %><br />
    <%= text_field_tag :email %>
  </div>
  <div class="field">
    <%= label_tag :password %><br />
    <%= password_field_tag :password %>

rbarazi

<%= form_for(@article) do |f| %>
  <% if @article.errors.any? %>
  <div id="errorExplanation">
    <h2><%= pluralize(@article.errors.count, "error") %> prohibited this article from being saved:</h2>
    <ul>
    <% @article.errors.full_messages.each do |msg| %>
      <li><%= msg %></li>
    <% end %>
    </ul>
  </div>

rbarazi

class ApplicationController < ActionController::Base
  protect_from_forgery

  protected 
    # Returns the currently logged in user or nil if there isn't one
    def current_user
      return unless session[:user_id]
      @current_user ||= User.find_by_id(session[:user_id]) 
    end

rbarazi

class UsersController < ApplicationController
  before_filter :authenticate, :only => [:edit, :update]

  def new
    @user = User.new
  end
  
  def create
    @user = User.new(params[:user])
    if @user.save

rbarazi

<%= div_for article do %>
  <h3>
    <%= link_to article.title, article %>
    <% if article.owned_by? current_user %>
      <span class='actions'>
        <%= link_to "Edit", edit_article_path(article) %>
        <%= link_to "Delete", article, :confirm => "Are you sure?", :method => :delete %>
      </span>
    <% end %>
  </h3>

rbarazi

module ApplicationHelper
  # Creates a submit button with the given name with a cancel link
  # Accepts two arguments: Form object and the cancel link name
  def submit_or_cancel(form, name='Cancel')
    form.submit + " or " + link_to(name, 'javascript:history.go(-1);', :class => 'cancel')
  end
end