method

index_exists?

v2.3.8 - Show latest stable - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

index_exists?(table_name, index_name, default)

public

Verify the existence of an index.

The default argument is returned if the underlying implementation does not define the indexes method, as there’s no way to determine the correct answer in that case.

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 347
      def index_exists?(table_name, index_name, default)
        return default unless respond_to?(:indexes)
        indexes(table_name).detect { |i| i.name == index_name }
      end

index_exists?

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