UK Ruby on Rails, Exalead, AWS, Consultancy - Unsigned integers for MySQL on Rails Comments

Comment on 'Unsigned integers for MySQL on Rails' by LnddMiles

2009-07-21T17:40:13Z

The best information i have found exactly here. Keep going Thank you

Comment on 'Unsigned integers for MySQL on Rails' by Rob Anderton

2009-04-07T07:10:26Z

I think it's safe to say now that this will not make it into core :(

I have made a start on a plugin version of the patch myself, and want to solve the whole primary key thing too, but haven't had chance to finish it yet. Good work on your plugin: I'm glad this post helped you out!

Comment on 'Unsigned integers for MySQL on Rails' by blythe

2009-04-02T21:23:41Z

Hey Rob, this is great. I was also trying to find a way to use unsigned integers and this inspired me to write a little plugin that leverages the existing scale and precision fields to support integer column width and UNSIGNED, respectively.

http://github.com/blythedunham/mysql_migration_optimizer/tree/master

add_column :giraffe, :beer_count, :integer, :scale => 8, :precision => :unsigned SQL: ALTER TABLE giraffe ADD beer_count int(8) UNSIGNED

I got the schema dumping for free by reusing those fields, however, I also had some fun times trying to rewrite it for the other features intended to let you customize table PRIMARY KEY. I ended up gsubing into the original generated schema for each table rather than rewrite the whole thing. I dunno, but you are right there is no good way.

Anyhoo, this is super young and only tested on Rails 2.3 really, but maybe helpful if the patch never gets in.

script/plugin git://github.com/blythedunham/mysql_migration_optimizer.git

Comment on 'Unsigned integers for MySQL on Rails' by Rob Anderton

2009-02-26T08:44:11Z

Putting it in ~/web/lib is correct, but did you also require it from an initializer?

Create an initializer in ~/web/config/initializers called patches.rb
In the file put require File.join(Rails.root, 'lib', 'active_record_ndbcluster.rb')
Restart your webserver/Rails console

It should then work

Comment on 'Unsigned integers for MySQL on Rails' by sygvin

2009-02-25T22:53:23Z

/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.0/lib/active_record/connection_adapters/mysql_adapter.rb (class Mysql adapter)

there is a call def create_table(table_name, options = {}) #:nodoc:

super(table_name, options.reverse_merge(:options => "ENGINE=InnoDB"))

I have a monkey patch in the name active_record_ndbcluster.rb and it has

module ActiveRecord 
  module ConnectionAdapters
    class MysqlAdapter
      def create_table(table_name, options = {}) #:nodoc:
        super(table_name, options.reverse_merge(:options => "ENGINE=NDBCLUSTER"))
      end
    end
  end
end

now where do i place this patch.

when i placed it in ~/web/lib/

it doesn't work. ~/web is the ruby on rails directory.

Thanks

Comment on 'Unsigned integers for MySQL on Rails' by Rob Anderton

2008-09-30T10:05:47Z

As my patch hasn't yet made it into Rails core and our crazy-busy schedule here has prevented me from getting around to turning this into a plugin, I've uploaded a monkey-patch version for your enjoyment. Simply drop it into your lib folder, require it in an initializer and you'll be good to go.

I've been using this patch for the last few months on all my new Rails projects without any problems (it still works with the latest Rails edge). In in the next few weeks I'm hoping to finally get around to offering either a more flexible Rails patch or a plugin: stay tuned for more information!

Comment on 'Unsigned integers for MySQL on Rails' by Rob Anderton

2008-06-04T22:58:50Z

You can find the Rails-core discussion of the patch here.

Comment on 'Unsigned integers for MySQL on Rails' by Thom Parkin

2008-06-02T20:08:07Z

An excellent contribution to the Rails community. This is something that has also bugged me for quite a while!