A class useful for when it makes sense to think of a week, conceptually, as a single object. An example, at least my use case, would be an app tracking pay periods. It makes sense to explicitly label a beginning marker.

Add this line to your application's Gemfile:

gem 'ordered_week'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ordered_week

You now have access to the OrderedWeek class, which returns an array of Dates, which includes an optionally given Date (defaults to including current day). Note: The following examples assume the current date to be Sunday, 2014-02-16.

OrderedWeek.new
#=> [2014-02-10, 2014-02-11, ... ]

These collections have a concept of where they start and end.

OrderedWeek.new.start_date
#=> #<Date: 2014-02-10 ((2456699j,0s,0n),+0s,2299161j)>
OrderedWeek.new.end_date
#=> #<Date: 2014-02-16 ((2456705j,0s,0n),+0s,2299161j)>

By default, the "week" starts on Monday. You can change this by setting the class option. Note: The following example shows that by resetting the start date for the week, a completely different week can be returned.

OrderedWeek.start_day
#=> :monday
OrderedWeek.start_day = :sunday
#=> :sunday
OrderedWeek.new.start_date
#=> #<Date: 2014-02-16 ((2456705j,0s,0n),+0s,2299161j)>

Don't worry though! If you accidentally pass an argument that isn't the symbol of a valid day of the week, nothing changes

OrderedWeek.start_day
#=> :monday
OrderedWeek.start_day = :bad
#=> :bad
OrderedWeek.start_day
#=> :monday

These objects respond to the following methods

OrderedWeek.new.monday
#=> #<Date: 2014-02-10 ((2456699j,0s,0n),+0s,2299161j)>

...

OrderedWeek.new.sunday
#=> #<Date: 2014-02-16 ((2456705j,0s,0n),+0s,2299161j)>

OrderedWeek.new.to_a
#=> [#<Date: 2014-02-10 ((2456699j,0s,0n),+0s,2299161j)>, #<Date: 2014-02-11 ((2456700j,0s,0n),+0s,2299161j)>, ... ]

The objects are also enumerable, so feel free to modify your Dates however you need

OrderedWeek.new.map {|day| day.strftime("%F")}
#=> ["2014-02-10", "2014-02-11", ... ]

1. Fork it ( http://github.com//ordered_week/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request