method

unique_constraint_for!

Importance_0
v7.1.3.4 - Show latest stable - 0 notes - Class: SchemaStatements
unique_constraint_for!(table_name, column: nil, **options) public

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# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 1064
          def unique_constraint_for!(table_name, column: nil, **options)
            unique_constraint_for(table_name, column: column, **options) ||
              raise(ArgumentError, "Table '#{table_name}' has no unique constraint for #{column || options}")
          end
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