/ Ruby on Rails
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method

unique_constraint

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

Method not available on this version

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

unique_constraint(column_name, **options)
public

No documentation available.

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 248
        def unique_constraint(column_name, **options)
          unique_constraints << new_unique_constraint_definition(column_name, options)
        end