ActiveRecord::Migration::CommandRecorder and change_table

rubyonrails-docs
1

Active Record Migrations — Ruby on Rails Guides and ActiveRecord::Migration::CommandRecorder state that the CommandRecorder knows how to invert the following commands: add_column, add_index, add_timestamp, create_table, remove_timestamps, rename_column, rename_index, rename_table.

In a migration, if I use change_table, will the CommandRecorder knows how to revert the change?

For example, I suppose that the underlying code will use add_column, but as it is not explicitly called in the migration, will the migration be reversible? If not, could that be explicitly written in the doc and guides?

class ExampleMigration < ActiveRecord::Migration   def change     change_table :products do |t|       t.string :category     end   end end

Yours

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The change_table method is not supported yet in reversible migrations. As the docs and guides state, the listed methods are the only ones that can be used in a <code>def change</code> method. See

Regards Vijay