method

index_name_exists?

v4.2.9 - Show latest stable - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

index_name_exists?(table_name, index_name, default)

public

Verifies the existence of an index with a given name.

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 634
      def index_name_exists?(table_name, index_name, default)
        return default unless respond_to?(:indexes)
        index_name = index_name.to_s
        indexes(table_name).detect { |i| i.name == index_name }
      end

index_name_exists?

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