This is really great - it only leaves the use case I outlined - updating
rows from csv (or - in the case of UUID / name field of coupon, would this
work that way anyway? Actually, I think so....)
On Sat, Mar 7, 2009 at 3:15 PM, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> Actually if you restore multiple tables using
>
> d={}
> db.table1.import_from_csv_file(file1,d)
> db.table2.import_from_csv_file(file3,d)
> ...
>
> web2py WILL FIX all your references. The new id will not be the same
> as the old ones but the references will reflect the new ids.
> This is achieved by storing a map between the original id and the new
> id in the d={} dictionary. Give it a try.
>
> You can also import_to_csv_field and export_from_csv_file an entire db
> (as opposed to an individual table) and the remapping of the ids is
> the default behaviour.
>
> Massimo
>
> On Mar 7, 1:31 pm, Joe Barnhart <joe.barnh...@gmail.com> wrote:
> > Well, what if I wanted to restore a database with ids used in multi-
> > table links? From what I read of the "import csv" it discards the id
> > field and inserts new records -- which will cause any linked records
> > from other tables to break. Come to think of it, I'm not sure how you
> > restore a database at all unless the ids can be set explicitly.
> >
> > At least this is one use case.
> >
> > -- Joe B.
> >
> > On Mar 5, 9:49 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
> >
> > > Why would anybody do such a thing? This can break the integrity of the
> > > database.
> > <
> > > Massimo
> >
>
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