Feature #12211
openintroduce Date#first_of_month and Date#last_of_month
Description
Proposes new methods Date#first_of_month and Date#last_of_month which can be very helpful in reporting applications which need the first and the last day of a month very frequently.
class Date
def first_of_month
Date.new(year, month, 1)
end
def last_of_month
next_month.first_of_month.prev_day
end
end
Current way to do it Date.new(date.year, date.month, 1)
is not elegant and short enough for this simple and common operation.
Updated by zverok (Victor Shepelev) over 8 years ago
IMHO, consistent approach would be "allow Date/Time to be rounded to any component", there are many uses for this. Maybe something like ceil
/floor
/round
methods set with Symbol argument? Like floor(:month)
and ceil(:month)
?
Updated by shyouhei (Shyouhei Urabe) over 8 years ago
Naming-wise, Rails (ActiveSupport) has Date#beginning_of_month. That name can be more familiar to other devs.
I'm against floor(:month) and such, especially against Time class. The concept of "the second that a day begins" is not that concrete when it relates to summer time. I recommend you to stick this proposal to Date only.
Updated by araipiyo (Shunichi Arai) over 8 years ago
Shyouhei Urabe wrote:
Naming-wise, Rails (ActiveSupport) has Date#beginning_of_month. That name can be more familiar to other devs.
I'm against floor(:month) and such, especially against Time class. The concept of "the second that a day begins" is not that concrete when it relates to summer time. I recommend you to stick this proposal to Date only.
I think Date#beginning_of_month is bit verbose but okay too. How about to have an alias to Date#first_of_month?
floor(:month) looks elegant, but I think it's bit counter-intuitive. How about Date#day(n), Date#wday(n), or Date#year(n) which create a new date object with diffrent day / wday / year?