johnnaegle

class Api::UsersController < ApplicationController
  def show
    if stale?(:last_modified => current_user.updated_at, :etag => current_user.updated_at)
    end
  end
end

johnnaegle

class User < ActiveRecord::Base
  COLUMNS_TO_EXCLUDE_FROM_CACHING = ["id", "updated_at", "created_at", "last_request_at"].freeze
  COLUMNS_FOR_CACHING = (User.column_names - COLUMNS_TO_EXCLUDE_FROM_CACHING).freeze
  before_validation do
    unless (COLUMNS_FOR_CACHING & changed).empty?
      self.user_updated_at = Time.now
    end
    true
  end
end

johnnaegle

class Api::UsersController < ApiController
  def show
    if stale?(:last_modified => current_user.user_updated_at, :etag => current_user.user_updated_at)
    end
  end
end

johnnaegle

class Post < ActiveRecord::Base
  has_many :comments, :dependent => :destroy, :inverse_of => :post

  accepts_nested_attributes_for :comments, :allow_destroy => true
end

class Comment < ActiveRecord::Base
  belongs_to :post, :inverse_of => :comments
end

johnnaegle

post = Post.create!

post.attributes = {
  :comments_attributes => {
    "0" => {:body =>
      Lorem::Base.new('words', 50).output.split(" ").shuffle.join(' ')
    }
  }
}
puts "Updated at: #{post.updated_at.to_f}"

johnnaegle

INSERT INTO "posts" ("created_at", "updated_at") VALUES ($1, $2) RETURNING "id" 
[["created_at", Sat, 15 Mar 2014 03:35:32 UTC +00:00], ["updated_at", Sat, 15 Mar 2014 03:35:32 UTC +00:00]]

COMMIT

Updated at: 1394854532.1633868

BEGIN
  INSERT INTO "comments" ("body", "created_at", "post_id", "updated_at") VALUES 
  ($1, $2, $3, $4) RETURNING "id"  [["body", "Lorem sit dolor vitae amet, blandit vitae consectetuer 

johnnaegle

class Comment < ActiveRecord::Base
  belongs_to :post, :inverse_of => :comments

  before_save do
    post.touch
  end
  
  before_destroy do
    post.touch
  end

johnnaegle

BEGIN
  INSERT INTO "posts" ("created_at", "updated_at") VALUES ($1, $2) RETURNING "id"  
  [["created_at", Sat, 15 Mar 2014 03:41:25 UTC +00:00], ["updated_at", Sat, 15 Mar 2014 03:41:25 UTC +00:00]]
COMMIT

Updated at: 1394854885.189413

BEGIN
  UPDATE "posts" SET "updated_at" = '2014-03-15 03:41:30.205245' WHERE "posts"."id" = 7

johnnaegle

# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.0.4'
require 'active_record'
require 'minitest/autorun'
require 'logger'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

johnnaegle

class Post < ActiveRecord::Base
  validates :name, :presence => true
  has_many :comments, :inverse_of=>:post, :dependent=>:destroy, :autosave=>true
end

class Comment < ActiveRecord::Base
  belongs_to :post, :inverse_of=>:comments
  scope :model, -> {where(:index => false)}
end