WebOnRails » edge_rails

Edge Rails: Time#current

Akhil Bansal — Mon, 05 Jul 2010 16:37:57 +0000

Returns Time.zone.now when config.time_zone is set, otherwise just returns Time.now

Edge Rails: Array#random_element

Akhil Bansal — Mon, 24 May 2010 12:30:45 +0000

Array#rand is deprecated in favor of Array#random_element and will be removed in Rails 3.

As per the comment added to the commit:
Array#rand is deprecated because it masks Kernel#rand within the Array class itself, which may be used by a 3rd party library extending Array in turn. See https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/4555

Edge Rails Updates

Akhil Bansal — Fri, 14 May 2010 15:54:57 +0000

New edge rails deprecations:

Time#last_year is deprecated in favor of Time#prev_year
Time#last_month is deprecated in favor of Time#prev_month

Date#last_year is deprecated in favor of Date#prev_year
Date#last_month is deprecated in favor of Date#prev_month

New methods/aliases:

Date#sunday: Returns a new Date representing the end of this week
Time#sunday: Returns a new Time representing the end of this week
rename_index: Rename database index
Ex: rename_index :people, ‘index_people_on_last_name’, ‘index_users_on_last_name’

Feel free to add more as comments..

Edge rails: ActiveRecord::Base.each and ActiveRecord::Base.find_in_batches for batch processing

Akhil Bansal — Mon, 23 Feb 2009 15:45:25 +0000

You guys must faced a situation when you need to process large number of records, for example sending newsletters. Then you must have done some sort of batch processing to save it eating up all of your memory. This feature is committed to rails core by DHH.

Now you can do something like User.each and User.find_in_batches.

Please refer here for more details.

Generating association while generating model

Akhil Bansal — Sun, 14 Dec 2008 11:10:32 +0000

May be you guys are already aware of, but in Rails 2.2 we can specify belongs_to association while generating model. So if we issue:

script/generate model Post title:string author:belongs_to

We will get a Post model like:

class Post < ActiveRecord::Base
  belongs_to :author
end

Also it will automatically add the foreign key column in the migration.

class CreatePosts < ActiveRecord::Migration
  def self.up
    create_table :posts do |t|
      t.string :title
      t.belongs_to :author

      t.timestamps
    end
  end

  def self.down
    drop_table :posts
  end
end

Nothing much but saves some keystrokes.

Ever tried Rails.root

Akhil Bansal — Mon, 01 Dec 2008 08:30:56 +0000

Guys, have you ever tried Rails.root. It gives same value as RAILS_ROOT. But now in edge rails it is modified and you can do much more with it.

You can use Rails.root at places like:

 File.join(RAILS_ROOT, 'public', 'images')

 Rails.root.join('public', 'images')

Both gives the same result.

Enjoy…

Edge Rails: Now define your plugin’s routes in plugin’s config/routes.rb

Akhil Bansal — Fri, 28 Nov 2008 05:19:26 +0000

If you wrote/writing a rails plugin that need to have an entry in rails routing, you need not to ask your plugin users to make that entry in RAILS_ROOT/config/routes.rb manually any more. In the latest version of rails you can add your custum routes in your plugin config/routes.rb file. Rails will automatically load those routes.