lucashungaro

• Jim Weirich: The Building Blocks of Modularity – http://goo.gl/g4Nk
• Jim Weirich: SOLID Ruby – http://goo.gl/z3jd
• Sandi Metz: SOLID Object-Oriented Design – http://goo.gl/PDn6T
• Sandi Metz: Less – The Path to Better Design – http://goo.gl/VuTl4
• Demeter is for Encapsulation – http://is.gd/eeyLx
• Opinionated Modular Code – http://is.gd/eeyXm
• Scaling to Hundreds of Millions of Requests – http://vimeo.com/12814529
• Confident Code – http://goo.gl/VFLX
• Destroy All Software Screencasts – https://www.destroyallsoftware.com/screencasts
• Corey Haines: Fast Rails Tests – http://goo.gl/Va2gb

cmaujean

<!-- app/views/orders/_add_dialog.html.erb -->

<div id="add_to_cart_dialog">
  Your item(s) have been added. You now have <%= order.item_count %> 
  items valued at <%= number_to_currency order.item_total %> in your cart.<br/>
  <div id="buttons" style="margin-top: 10px; width: 100%;">
    <button id="continue_shopping_button" style="float: left;" type="button">Continue Shopping (10)</button>
    <button id="view_cart_button" style="margin-left: 10px; float: left;clear: right;" type="button">Checkout Now</button>
  </div>
</div>

fxposter

require 'haml'

class ErbEngine < Haml::Engine
  def push_script(text, preserve_script, in_tag = false, preserve_tag = false,
                  escape_html = false, nuke_inner_whitespace = false)
    push_text "<%= #{text.strip} %>"
  end
  
  def push_silent(text, can_suppress = false)
    push_text "<% #{text.strip} %>"

rstacruz

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

them0nk

#Model 

@user.should have(1).error_on(:username) # Checks whether there is an error in username 
@user.errors[:username].should include("can't be blank")  # check for the error message 

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)

terryjray

RAILS_ENV=production rake db:setup
# produces the error below.....hmmm.....it's a no-worky
psql:/yourprojectpath/yourproject/db/structure.sql:29: ERROR:  could not open extension control file "/usr/share/postgresql/9.1/extension/hstore.control": No such file or directory

# hstore postgresql extension needs to be installed, so....
sudo apt-get install postgresql-contrib

# now your extension should be available to enable so log in with psql
psql -d yourproject_production -U yourdbuser -W

cpjolicoeur

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

EtienneDepaulis

@import "dataTables/jquery.dataTables";

/* A modifier pour avoir les bons espacements */

body.active_admin .data_table {
  padding-bottom: 10px;
}

body.active_admin .dataTables_paginate {
  margin-top: -10px;

alex-zige

Rails Rspec APIs Testing Notes

Folders Structure

  spec
  |--- apis #do not put into controllers folder. 
        |--- your_api_test_spec.rb  
  |--- controllers
  |--- models
  |--- factories
 |--- views

rusilko

#!/bin/bash

# Function displaying wrong usage information
# Proper usage is: ./dev_start.sh Rails-Project-Folder
usage()
{
cat << EOF
usage: $0 Rails-Project-Folder
EOF
}