Method: ActiveRecord::ConnectionAdapters::PostgreSQL::AlterTable#add_unique_constraint

Defined in:
activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb

#add_unique_constraint(column_name, options) ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb', line 382

def add_unique_constraint(column_name, options)
  @unique_constraint_adds << @td.new_unique_constraint_definition(column_name, options)
end