ActiveRecord date field

Rails
#1

By accident, I just realized that an ActiveRecord date field can be set
using a third way…

foo = Fo.new
foo.start_date = Date.new(2016, 1, 31)
foo.start_date = ‘2016-01-31’

and to my surprise…

foo.start_date = ‘31/1/2016’

Where can I find documentation on this? I’ve searched to the point of
wasting my time.

#2

On Thursday, May 5, 2016 at 4:26:19 PM UTC+1, Ruby-Forum.com User wrote:

By accident, I just realized that an ActiveRecord date field can be set
using a third way…

foo = Fo.new
foo.start_date = Date.new(2016, 1, 31)
foo.start_date = ‘2016-01-31’

and to my surprise…

foo.start_date = ‘31/1/2016’

Where can I find documentation on this? I’ve searched to the point of
wasting my time.

In the most general case, active record ends up calling Date._parse
(
http://ruby-doc.org/stdlib-2.3.1/libdoc/date/rdoc/Date.html#method-c-_parse
) from the ruby stdlib which tries to guess/handle all sorts of
different
formats ( https://github.com/ruby/ruby/blob/trunk/ext/date/date_parse.c
)
but without documenting what they are (as far as I can see)

Fred

#3

On Thu, May 5, 2016 at 11:25 PM, Avery W. [email protected]
wrote:

Where can I find documentation on this?

there are lots, try this eg
https://robots.thoughtbot.com/how-rails-works-type-casting
just remember, this is ruby, and “foo=” can be a method call.

kind regards --botp