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method

add_unique_constraint

rails latest stable - Class: ActiveRecord::ConnectionAdapters::PostgreSQL::AlterTable

Method not available on this version

This method is only available on newer versions. The first available version (v8.1.1) is shown here.

add_unique_constraint(column_name, options)
public

No documentation available.

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 369
        def add_unique_constraint(column_name, options)
          @unique_constraint_adds << @td.new_unique_constraint_definition(column_name, options)
        end