josevalim

// Improvements to file uploads with Zombie.
//
// Just start the Sinatra server below and run this file with node.
// Depending on the server used with Sinatra, it will fail upfront or forward
// a bad request to the app. The source code in zombie is in the link below
// (you will need Zombie from git, you can check it out and use `npm link`):
//
// https://github.com/assaf/zombie/blob/master/src/zombie/history.coffee#L93
//
var zombie = require("zombie");

josevalim

Tree = {function,1,foo,1,
          [{clause,1,
                   [{var,1,self}],
                   [],
                   [{op,1,'+',{integer,1,1},{integer,1,2}}]}]}.

% Thanks to N_Ox on #erlang for pointing erl_syntax:abstract out.
{value, Tree, _ } = erl_eval:expr(erl_syntax:revert(erl_syntax:abstract(Tree), [])).

josevalim

# Assuming you mounted it as attachment...
def update_attributes(attributes)
  @previous_attachment = self.attachment
  super
end

after_update do
  if @previous_attachment && @previous_attachment.file != attachment.try(:file)
    @previous_attachment.remove!
  end

josevalim

I am trying to run Mochiweb and I have decided to start with the https_store example:

https://github.com/mochi/mochiweb/blob/master/examples/https/https_store.erl

When I start it through the shell:

$ erl -pa ebin
1> https_store:start().

And then I use curl, everything works fine. Now, when I start it using -s, it simply does not work:

josevalim

diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
index e40b328..c891178 100644
--- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
+++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
@@ -19,10 +19,10 @@ module ActiveRecord::Associations::Builder
         name = self.name
         model.send(:include, Module.new {
           class_eval <<-RUBY, __FILE__, __LINE__ + 1
-            def destroy          # def destroy
-              super              #   super

josevalim

diff --git a/railties/lib/rails/application.rb b/railties/lib/rails/application.rb
index 66a1f88..2bd5c48 100644
--- a/railties/lib/rails/application.rb
+++ b/railties/lib/rails/application.rb
@@ -141,35 +141,17 @@ module Rails
       @assets ||= build_asset_environment
     end
 
+    protected
+

josevalim

In Elixir, you can only have methods in modules. An object is made of two groups of modules: mixins and protos. Mixins specify how the current object behaves, protos specify how the children of the current object will behave. This would be the canonical object definition in Elixir:

object Person
  module Mixin
    % What would be class methods in Ruby
  end

  module Proto
    % What would be instance methods in Ruby

end

josevalim

# With explicit parens, explicit self and semi-colons
class UsersController < ApplicationController
  self.before_filter(:authenticate_user!);

  def index()
    @users = User.all();

    self.respond_to() do |format|
      format.html();
      format.xml() { self.render({:xml => @users}) };

josevalim

Imagine the following route:

  Rails.application.routes.draw do  
    match "/foo", :to => "posts#foo"
  end

If we remove autoload, when the route try to load "PostsController",
it needs to be already there (and not autoload it). One options it to
load all controllers at the beginning of your route file:

josevalim

class NamespacedGeneratorTestCase < Rails::Generators::TestCase
  def setup
    Rails::Generators.namespace = TestApp
  end
end