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class Tag
  has_many :taggings
  named_scope :important, :include => { :taggings => :important }
end

class Tagging
  belongs_to :tag
  belongs_to :posts
  
  # uses a string 'flag' column but could be changed to a boolean important 

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sub read_savedrecs {
  my $dir = shift;
  my (@rec, @head);
  foreach my $f (<$dir/savedrecs*.txt>) {
    my @file = read_file($f);
    my $head = shift @file;
    @head = @$head unless $#head > 0;
    push @rec, @file;
  }
  my %head_idx;

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sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

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<link rel="stylesheet" type="text/css" media="print" href="print.css"/>
a[href]:after { content: " (" attr(href) ") "; }

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SELECT *,(((acos(sin((".$latitude."*pi()/180)) * sin((`lat`*pi()/180))+cos((".$latitude."*pi()/180)) * cos((`lat`*pi()/180)) * cos(((".$longitude."- `lng`)*pi()/180))))*180/pi())*60*1.1515*1.609344) as distance FROM `items` ORDER BY distance;

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require 'open-uri'

# url dsl -- the ultimate url dsl!
#
# You just can't beat this:
#
#   $ irb -r url_dsl
#   >> include URLDSL
#   => Object
#   >> http://github.com/defunkt.json

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# Critical default settings:
disable_system_gems
disable_rubygems
bundle_path ".gems/bundler_gems"

# List gems to bundle here:
gem "rails", "3.0.pre", :git => "git://github.com/rails/rails.git"
gem "arel",             :git => "git://github.com/rails/arel.git"
gem "i18n"
gem "dm-appengine"

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SELECT table_schema "DB Name", round(sum( data_length + index_length) / 1024 / 1024, 0)  "DB Size in MB" FROM information_schema.TABLES where table_schema = "YOUR_DB_NAME";

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development: &global_settings
  database: textual_development
  host: 127.0.0.1
  port: 27017

test:
  database: textual_test
  <<: *global_settings

production:

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Rails 2.3.5 on App Engine¶ ↑

We assumed Rails 2 would never work without rubygems, and we committed to gem bunlder for JRuby on App Engine, so we were waiting for Rails 3. Fortunately, Takeru Sasaki was able to patch the Rails 2.3.5 calls to rubygems, and now we have it working. Rails 2.3.5 currently spins up several seconds faster than Rails 3, and just a few seconds behind Sinatra.

Install the Development Environment¶ ↑

The gems for the development environment include a pre-release appengine-tools gem that provides a pre-release version of jruby-rack.

sudo gem install google-appengine
sudo gem install appengine-tools --pre