sort_by_str

SQL-like sorts on your Enumerables.

Getting Started

gem install sort_by_str
require 'sort_by_str'

a = Date.parse('2010-08-22')
b = Date.parse('2010-08-23)

[a,b].sort_by_str('year ASC, day DESC')
=> [b,a]

Call sort_by_str on your Enumerable with a SQL-style sort expression containing a list of fields.

A basic expression might look like like

'year, month, day'.

Optional ASC (ascending) or DESC (descending) modifiers can also be used:

'year ASC, day DESC'

send is used to extract values for comparison, so any valid method name can be used in the expression.