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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index db489143af..80409232a3 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -680,9 +680,10 @@ module ActiveRecord
end
alias :remove_belongs_to :remove_references
- # Adds a foreign key.
+ # Adds a foreign key to the table using a supplied table name.
#
# t.foreign_key(:authors)
+ # t.foreign_key(:authors, column: :author_id, primary_key: "id")
#
# See {connection.add_foreign_key}[rdoc-ref:SchemaStatements#add_foreign_key]
def foreign_key(*args)