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| author | Jon Leighton <j@jonathanleighton.com> | 2011-03-04 09:33:02 +0000 |
|---|---|---|
| committer | Jon Leighton <j@jonathanleighton.com> | 2011-03-04 20:36:11 +0000 |
| commit | a5ef8b9fa0b30f73af206145cfc39228cb6b9526 (patch) | |
| tree | cffdc4b83a1fabf6f27c682c1d911a9b22b8abc7 /activerecord/lib/active_record/associations/preloader | |
| parent | 735844db712c511dd8abf36a5279318fbc0ff9d0 (diff) | |
| parent | 1db4969dc9cabed9db162e7194b9353d43c967d7 (diff) | |
| download | rails-a5ef8b9fa0b30f73af206145cfc39228cb6b9526.tar.gz rails-a5ef8b9fa0b30f73af206145cfc39228cb6b9526.tar.bz2 rails-a5ef8b9fa0b30f73af206145cfc39228cb6b9526.zip | |
Merge branch 'master' into nested_has_many_through
Diffstat (limited to 'activerecord/lib/active_record/associations/preloader')
| -rw-r--r-- | activerecord/lib/active_record/associations/preloader/through_association.rb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index ad6374d09a..30558ae29c 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -33,8 +33,13 @@ module ActiveRecord through_options ).run + # TODO: Verify that this is actually necessary and not just a symptom of an + # underlying inefficiency + identity_map = {} + Hash[owners.map do |owner| through_records = Array.wrap(owner.send(through_reflection.name)) + through_records.map! { |record| identity_map[record] ||= record } # Dont cache the association - we would only be caching a subset if reflection.options[:source_type] && through_reflection.collection? |