Type:
Class

ActiveRecord::Migration::CommandRecorder records commands done during a migration and knows how to reverse those commands. The CommandRecorder knows how to invert the following commands:

  • add_column

  • add_index

  • add_timestamps

  • create_table

  • create_join_table

  • remove_timestamps

  • rename_column

  • rename_index

  • rename_table

inverse_of

inverse_of(command, args, &block) Instance Public methods Returns the inverse

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record

record(*command, &block) Instance Public methods record command

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change_table

change_table(table_name, options = {}) Instance Public methods

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new

new(delegate = nil) Class Public methods

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revert

revert() Instance Public methods While executing the given block, the recorded

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