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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 5814c2b711..8ecb7c0506 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -619,7 +619,8 @@ module ActiveRecord
def add_reference(table_name, ref_name, options = {})
polymorphic = options.delete(:polymorphic)
index_options = options.delete(:index)
- add_column(table_name, "#{ref_name}_id", :integer, options)
+ type = options.delete(:type) || :integer
+ add_column(table_name, "#{ref_name}_id", type, options)
add_column(table_name, "#{ref_name}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) if polymorphic
add_index(table_name, polymorphic ? %w[id type].map{ |t| "#{ref_name}_#{t}" } : "#{ref_name}_id", index_options.is_a?(Hash) ? index_options : {}) if index_options
end