From 90871f7198f0739c82df2f1bbb66c5f8dd5a720a Mon Sep 17 00:00:00 2001 From: Ionatan Wiznia Date: Fri, 11 Oct 2013 12:50:23 +0200 Subject: flatten and flatten! methods for ActiveSupport::Duration --- guides/source/active_support_core_extensions.md | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'guides/source') diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index d3f49b19fa..d11c17117e 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -3699,6 +3699,21 @@ Time.utc(1582, 10, 3) + 5.days # => Mon Oct 18 00:00:00 UTC 1582 ``` +When addinng or substracting durations, the resulting duration will be equivalent to subsequent calls to since or advance, so: + +```ruby +Date.new(2013,1,28) + 1.month + 1.month +# => Thu, 28 Mar 2013 +``` + +If you want to add durations and then use them as just one call to since or advance, you can use the flatten or flatten! method: + +```ruby +Date.new(2013,1,31) + (1.month + 1.month).flatten +# => Sun, 31 Mar 2013 +``` + + Extensions to `File` -------------------- -- cgit v1.2.3