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| author | Henrik Hodne <me@henrikhodne.com> | 2013-07-17 11:10:35 -0700 |
|---|---|---|
| committer | Henrik Hodne <me@henrikhodne.com> | 2013-07-17 11:37:39 -0700 |
| commit | ef350c9f2e35fc7e16c74158686c9ad2805cb465 (patch) | |
| tree | 6a094dcb22e787c13183bc8d9c23574042b33880 /activerecord | |
| parent | faf6f7851e7766bc64f9d8ed1ade0b5168c5b76f (diff) | |
| download | rails-ef350c9f2e35fc7e16c74158686c9ad2805cb465.tar.gz rails-ef350c9f2e35fc7e16c74158686c9ad2805cb465.tar.bz2 rails-ef350c9f2e35fc7e16c74158686c9ad2805cb465.zip | |
Improve ActiveRecord::QueryMethods#includes docs
It's not immediately clear whether you can pass in multiple relations or
not. After going through the code a bit, I saw that the arguments are
just appended to an array. Also, added nested relations example.
[ci skip]
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/relation/query_methods.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index fb585ab8ab..d0c56ac3d0 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -100,6 +100,14 @@ module ActiveRecord # firing an additional query. This will often result in a # performance improvement over a simple +join+. # + # You can also specify multiple relationships, like this: + # + # users = User.includes(:address, :friends) + # + # Loading nested relationships is possible using a Hash: + # + # users = User.includes(:address, friends: [:address, :followers]) + # # === conditions # # If you want to add conditions to your included models you'll have |