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-rw-r--r--activerecord/lib/active_record/associations/has_many_association.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index a0e2e8b479..0d044b28e4 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -58,7 +58,7 @@ module ActiveRecord
when :delete_all
@reflection.klass.delete(records.map { |r| r.id })
else
- updates = { @reflection.primary_key_name => nil }
+ updates = { @reflection.foreign_key => nil }
conditions = { @reflection.association_primary_key => records.map { |r| r.id } }
with_scope(@scope) do