latortuga

Notes

This is the latest version of an email which I send periodically, offering customers the opportunity to pre-pay for SaaS in return for a discount. The benefits to the SaaS company are better cash flow and reduced churn rate. The benefits to the customer are, well, in the email. This genre of email has produced hundreds of thousands of dollars in pre-pays for some companies I work with, and it rarely requires any more work than this example.

I've put $79 is as a placeholder for the cost of the user's plan. We calculate that for each account, naturally, along with the billing contact's name.

Subject: Save $79 on Appointment Reminder (and get a tax write-off) Formatting: 100% plain text. Gmail automatically links up the central link. From: Patrick McKenzie (Appointment Reminder) patrick@appointmentreminder.org

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$ ruby poodr.rb 
poodr.rb:20:in `prepare_trip': undefined method `each' for nil:NilClass (NoMethodError)
        from poodr.rb:6:in `block in prepare'
        from poodr.rb:5:in `each'
        from poodr.rb:5:in `prepare'
        from poodr.rb:54:in `<main>'

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require 'active_record'
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Schema.define do
  create_table :somethings, force: true do |t|
    t.integer :age
    t.integer :count
  end
end

class Something < ActiveRecord::Base

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# Imagine we have a form that only sets user name for verified users
class Form
  include ActiveModel::Model

  attr_accessor :name

  def save(user)
    user.name = name if user.verified?
  end
end

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Run tests via Minitest how it's supposed to work

# manual way
Minitest.run(args)

# magic way
require 'minitest/autorun'
# or
Minitest.autorun

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<%= CSV.generate do |csv| %>
  <% csv << ["All Orders"] %>
  <% csv << [] %>
  <% total = 0.0 %>
  <% orders.each do |order| %>
    <% csv << [order.id, order.subtotal, order.tax, order.shipping, order.total] %>
    <% total += order.total %>
  <% end %>
  <% csv << [] %>
  <% csv << ["Total", total] %>

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def method_name
  state.thing_that_throws
rescue
  state.error
ensure
  state.thing
  state
end

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$ git clone git://github.com/author/gem_name
$ cd gem_name

install dependencies, sudo gem install xxx

$ rake gem

$ sudo gem install pkg/gem_name-1.1.1.gem

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Some of this is pulled directly from the git-svn man page.

Push a local git-branch to a new remote new-svn-branch

git svn branch new-svn-branch

now there is a new remote tracking branch, confirm with git branch -r to push local git-branch changes to the new svn branch git checkout git-branch git rebase --onto new-svn-branch OR from master (this seems to work better) git rebase --onto new-svn-branch master git-branch

latortuga

/*
Add a bookmark to this

javascript:(function(){var c=document.getElementsByTagName("link");for(var d=0;d<c.length;d++){var a=c[d];if(a.type=="text/css"){var e="css_buster_"+Math.floor(Math.random()*1000000000);var g=a.href.split("?",1);var f;if(g.length>1){var b=g[1].indexOf("&")==-1;if(b){f=e}else{f=g[1]+"&"+e}}else{f=e}a.href=g[0]+"?"+f}}})();
*/
(function() {
  var links = document.getElementsByTagName('link');
  for (var i = 0; i < links.length; i++) {
    var l = links[i];
    if (l.type == 'text/css') {