Re: [Rails] What the Ruby Association

On Jul 12, 2012, at 11:18 AM, Jean-Sébastien D. wrote:

>> If you read through the migrations guide, you will learn about rake
>> db:rollback, which will step backward through your migrations. You can
>> then hand-edit the migrations, delete the ones that have rolled back and
>> generate new ones, or some combination of those. Just don't remove an
>> already-run migration without rolling it back first.
>>
>> Walter
>
> Is there a way for me to select one specifically something like this
>
> rake db:rollback YYYYMMDDHHMMSS_model.rb

I don't know specifically -- what do the guides say? I've only ever stepped back one or two at a time, made my adjustments, then run rake db:migrate again to roll back up to the current stage.

Walter

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