On 1/24/07, Rob Hudson <[EMAIL PROTECTED]> wrote: > > Russell Keith-Magee wrote: > > Glad you like it. I'm hoping to get some time in the next week or so > > to finish off the few things that are needed before I bug Adrian for > > permission to commit. In the meantime, if you have any suggestions or > > comments, let me know. > > Maybe I could just throw in another use case and we can see if the > dump/restore facility will work in this way too... > > Right now I'm working on a project that we're developing a new data > model with. The content team is already starting to input data. > Occasionally I find a need to add a new database column to support > something new. This is your typical schema evolution need. > > If I could dump the current data, run an sqlreset, and reload the data, > that would be amazingly helpful. (At least until schema evolution comes > online or even as an alternative approach after it's available.) > > Would/Could it work like this? > > Is the dump/restore facility tied to fixtures? I see a dumpdb option in > your patch but not a reloaddb (or the like)... just a 'installfixture'. > > -Rob > Your case is just I mentioned before, and for simple situations, db_dump.py tool can automatically add new column with default value defined in Model, and if there is not a default value defined in Model, you can change the data file, and add 'default' key to specify the default value of a new column, or the new column is renamed from an old column , you can add 'reference' type for new column, then the value of new column will use the value of referred column. Details you can find in wiki page.
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