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| author | Jens Lukowski <jens.lukowski@digitalpaperplanes.com> | 2012-01-29 21:53:35 +0100 |
|---|---|---|
| committer | Jens Lukowski <jens.lukowski@digitalpaperplanes.com> | 2012-01-29 21:53:35 +0100 |
| commit | e2cea6cc5d912fffd1654209c168bf79705fa5bb (patch) | |
| tree | 14207421dfb6e244e1e7d9457294ad9ccdf014f9 /activerecord/lib | |
| parent | 4b96dd7962a052af17b9c3a1fe39f4269c4f96c9 (diff) | |
| download | rails-e2cea6cc5d912fffd1654209c168bf79705fa5bb.tar.gz rails-e2cea6cc5d912fffd1654209c168bf79705fa5bb.tar.bz2 rails-e2cea6cc5d912fffd1654209c168bf79705fa5bb.zip | |
fix for Issue 4718
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/relation/finder_methods.rb | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index f1ac421a50..b54a167dc3 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -318,7 +318,8 @@ module ActiveRecord def find_one(id) id = id.id if ActiveRecord::Base === id - if IdentityMap.enabled? && where_values.blank? && + if IdentityMap.enabled? && + (where_values.blank? || contains_only_subclass_constraint?(where_values)) && limit_value.blank? && order_values.blank? && includes_values.blank? && preload_values.blank? && readonly_value.nil? && joins_values.blank? && @@ -394,5 +395,11 @@ module ActiveRecord def using_limitable_reflections?(reflections) reflections.none? { |r| r.collection? } end + + def contains_only_subclass_constraint?(where_values) + where_values.length == 1 && + !where_values[0].left.nil? && where_values[0].left.relation.name == table_name && + !where_values[0].right.nil? && where_values[0].right.length == 1 && where_values[0].right[0] == @klass.name + end end end |