From: Chris Hulan <hulachr@...>
Date: 2006-06-20T22:25:54+09:00
Subject: Re: Converting a date to the day of the week

Kris Leech wrote:
> http://www.ruby-doc.org/stdlib/libdoc/date/rdoc/classes/Date.html#M000370
> 
> Looking at the Date class there are two constants, a hash DAYS and an 
> array ABBR_DAYNAMES.
> 
> DAYS = { 'sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday'=> 3, 
> 'thursday' => 4, 'friday' => 5, 'saturday' => 6 }
> ABBR_DAYNAMES = %w(Sun Mon Tue Wed Thu Fri Sat)
> 
> I can get the integer for the day 'number' (0 to 6) from a date using 
> the wday method, ie. Date.today.wday
> But how do I use the array or hash from Date.rb, it does not appear to 
> be initialized at the time of use.
> 
> Ultimately what I wish to create is a select box (monday-sunday) with 
> today's day pre-selected.
> 
> I've looked for a Rails helper to this but there does not appear to be 
> one.
> 
> Many thanks. AFM.

irb(main):003:0> Date::ABBR_DAYNAMES[Date.today.wday]
=> "Tue"
irb(main):004:0> Date::DAYS.index Date.today.wday
=> "tuesday"

HTH

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