craigweston

    template<typename C, C first, C last>
    class EnumIterator {
    private:
        typedef typename std::underlying_type<C>::type val_t;

    public:
        EnumIterator(C const &f) : val(f) {}

        EnumIterator() : val(first) {}

craigweston

# called with: rake db:migrate:touch['123456_migration_file.rb']

namespace :db do
  namespace :migrate do
    desc "Touch migration - Renames file with new version and runs db:migrate:down with old version and db:migrate:up with new version"
    task :touch, [:filename] => [:environment] do |t, args|
      migrate_path = ActiveRecord::Migrator.migrations_path
      filename = args[:filename]

      next_version = ActiveRecord::Migrator.current_version.to_i + 1

craigweston

// double wrapping performance test: http://jsperf.com/check-jquery-wrap

$.extend({
  ensure: function(el) {
    return !(el instanceof jQuery) ? $(el) : el;
  }
});

// example use
function doSomethingWithEl(el) {

craigweston

module ActiveRecord
  module Querying
    delegate :or, :to => :all
  end
end

module ActiveRecord
  module QueryMethods
  	 # OrChain objects act as placeholder for queries in which #or does not have any parameter.
    # In this case, #or must be chained with any other relation method to return a new relation.

craigweston

names = ['Mike Smith', 'McDonald, John', 'Jill Doe']
names.map { |e| e.split(/,\s*/).reverse!.join(' ') }
# => ["Mike Smith", "John McDonald", "Jill Doe"] 

craigweston

<label>All starting with:</label>
<g:each in="${'a'..'z'}" var="ch">
   <g:link action="list" params="[searchLetter: ch]">${ch}</g:link> |
</g:each>