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It's more that Rails needs to know how to recreate the columns

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Jason Noble 2011-12-03 19:12:23 -07:00
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railties/guides/source/migrations.textile
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@ -327,7 +327,7 @@ As always, what has been generated for you is just a starting point. You can add
or remove from it as you see fit. or remove from it as you see fit.
NOTE: The generated migration file for destructive migrations will still be NOTE: The generated migration file for destructive migrations will still be
old-style using the +up+ and +down+ methods. This is because Rails doesn't know old-style using the +up+ and +down+ methods. This is because Rails needs to know
the original data types defined when you made the original changes. the original data types defined when you made the original changes.
h3. Writing a Migration h3. Writing a Migration