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| author | Pramod Sharma <pramod_sharma@outlook.com> | 2014-09-25 19:48:26 +0530 |
|---|---|---|
| committer | Zachary Scott <e@zzak.io> | 2014-10-18 12:59:51 -0700 |
| commit | 68fd1a3b2310d7054cbd13432c6e1273e61c7d2b (patch) | |
| tree | 5f63de316bc5de03edb31e4699d137607d3857bc /activesupport/lib | |
| parent | 0ab075e75f58bf403f7ebe20546c7005f35db1f6 (diff) | |
| download | rails-68fd1a3b2310d7054cbd13432c6e1273e61c7d2b.tar.gz rails-68fd1a3b2310d7054cbd13432c6e1273e61c7d2b.tar.bz2 rails-68fd1a3b2310d7054cbd13432c6e1273e61c7d2b.zip | |
[ci skip] Add Doc of with_options for the case when inherited default options and original options have same keys
Diffstat (limited to 'activesupport/lib')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/object/with_options.rb | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/with_options.rb b/activesupport/lib/active_support/core_ext/object/with_options.rb index 42e87c4424..7d38e1d134 100644 --- a/activesupport/lib/active_support/core_ext/object/with_options.rb +++ b/activesupport/lib/active_support/core_ext/object/with_options.rb @@ -47,7 +47,21 @@ class Object # end # # <tt>with_options</tt> can also be nested since the call is forwarded to its receiver. - # Each nesting level will merge inherited defaults in addition to their own. + # + # NOTE: Each nesting level will merge inherited defaults in addition to their own. + # + # class Post < ActiveRecord::Base + # with_options if: :persisted?, length: { minimum: 50 } do + # validates :content, if: -> { content.present? } + # end + # end + # + # The code is equivalent to: + # + # validates :content, length: { minimum: 50 }, if: -> { content.present? } + # + # Hence the inherited default for `if` key is ignored. + # def with_options(options, &block) option_merger = ActiveSupport::OptionMerger.new(self, options) block.arity.zero? ? option_merger.instance_eval(&block) : block.call(option_merger) |