No one has any ideas? This is a pretty basic question... On Jan 30, 8:29 pm, senihele <[email protected]> wrote: > Hey all, > > I have a Sinatra/Datamapper application on Heroku. Datamapper doesn't > handle migrations very well, and to the best of my knowledge can't > remove or rename a column without wiping out the entire database. > Anyone have any ideas on how I can do this manually? I tried to run > the raw sql via the console, but when i run > > ActiveRecord::Base.connection.execute("select ...") > > I get the error message: > > ActiveRecord::ConnectionNotEstablished: > ActiveRecord::ConnectionNotEstablished > > It seems like Datamapper also now has support to AR style migrations, > but I can' find anything on how to set this up with Sinatra. Since I > haven't been using AR style migrations up until this point, it would > just be easier to be able to to remove and rename the columns > directly. > > Any ideas? Thanks.
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