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-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb10
1 files changed, 9 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 01d46f7676..7099bdd285 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -347,7 +347,15 @@ module ActiveRecord
end
def construct_relation_for_association_calculations
- apply_join_dependency(self, construct_join_dependency(arel.froms.first))
+ from = arel.froms.first
+ if Arel::Table === from
+ apply_join_dependency(self, construct_join_dependency)
+ else
+ # FIXME: as far as I can tell, `from` will always be an Arel::Table.
+ # There are no tests that test this branch, but presumably it's
+ # possible for `from` to be a list?
+ apply_join_dependency(self, construct_join_dependency(from))
+ end
end
def apply_join_dependency(relation, join_dependency)