mikesjewett

# The each method is an iterator. It invokes a block of code a certain amount of times. The amount of times
# it will invoke the block of code depends on the size of the collection (array or hash) it is called on.

# for example, calling each on an array could be done like this:
[1,2,3].each do |num|
  puts num
end

# this returns:
1

mikesjewett

# these all accomplish the same goal.

def sum(numbers=[])
  sum = 0
  numbers.each { |i| sum += i }
  sum
end

def sum(numbers=[])
  numbers.inject(0) { |sum,element| sum += element }

mikesjewett

def rollback_packages
  self.lines.each do |l|
    l.packages each do |p|
      puts "INside the nested deal"
    begin
      ActiveRecord::Base.transaction do
        p.update_attributes(:sold => false, :line_id => nil)
      end
    rescue => e
      self.errors[:base] << e.message    

mikesjewett

$("#follow_form").html("<%= escape_javascript(render('users/unfollow')) %>")
$("#followers").html('<%= @user.followers.count %>')

mikesjewett

<div class="row">
  <div class="span6">   
    <% if @meeting.started && [email protected]? %>
      <%= content_for :javascripts do %>
        <script>
          var count = <%= @meeting.before_time %>;
          var cost = <%= @meeting.cost %>;
        </script>
      <% end %>
    <div class="live_input">  

mikesjewett

rails new <name of app> -d postgresql
rails g scaffold User name:string
rake db:migrate

Install Postgres.app
brew install postgresql

Problem: FATAL: role "<name of app/db here>" does not exist
Solution: 
  cd /usr/lib

mikesjewett

     meeting_comments POST   /meetings/:meeting_id/comments(.:format)          comments#create
      meeting_comment DELETE /meetings/:meeting_id/comments/:id(.:format)      comments#destroy
meeting_meeting_users POST   /meetings/:meeting_id/meeting_users(.:format)     meeting_users#create
 meeting_meeting_user PUT    /meetings/:meeting_id/meeting_users/:id(.:format) meeting_users#update
                      DELETE /meetings/:meeting_id/meeting_users/:id(.:format) meeting_users#destroy
             meetings GET    /meetings(.:format)                               meetings#index
                      POST   /meetings(.:format)                               meetings#create
          new_meeting GET    /meetings/new(.:format)                           meetings#new
         edit_meeting GET    /meetings/:id/edit(.:format)                      meetings#edit
              meeting GET    /meetings/:id(.:format)                           meetings#show

mikesjewett

new-host-2:ltp mike$ brew remove postgresql
Uninstalling /usr/local/Cellar/postgresql/9.1.4...
new-host-2:ltp mike$ brew install postgresql
==> Downloading http://ftp.postgresql.org/pub/source/v9.1.4/postgresql-9.1.4.tar.bz2
Already downloaded: /Library/Caches/Homebrew/postgresql-9.1.4.tar.bz2
==> Patching
patching file src/pl/plpython/Makefile
patching file contrib/uuid-ossp/uuid-ossp.c
==> ./configure --disable-debug --prefix=/usr/local/Cellar/postgresql/9.1.4 --datadir=/usr/local/Cellar/postgresql
==> make install-world

mikesjewett

https://devcenter.heroku.com/articles/multiple-environments
#=> just create a new git remote for ps-staging and then push to it

# PS local constants
store in config/initializers
add to gitignore
commit something.yml.sample to show the contents that the file should have, so other devs can run their own local instance

mikesjewett

# install Foreman
gem install foreman

#bash
export CONSTANT_NAME='name'
export CONSTANT_SOMETHING_ELSE='something_else'

#in app root directory create Procfile, .env and .gitignore
#Procfile
web: bundle exec rails s -p $PORT