On Mar 10, 8:11 am, mdipierro <[email protected]> wrote:
> You can do it this way:
>
> buffer=open('buffer','wb')
> db1.export_to_csv_data(buffer)
> buffer=open('buffer','rb')
> db2.import_from_csv_data(buffer)
>
> all references will be preserved although the record ids will change.

Thank you! I'm glad I was wise enough to ask before starting to code
it :)

On Mar 10, 9:11 am, Thadeus Burgess <[email protected]> wrote:
> so if you store record_id as a text field, ( as some plugins do like
> tagging ) then those ids will be wrong upon insertion to a new
> database.

Yes, thanks for pointing this out.

>
> On Mar 10, 6:24 am, Maciek Sykulski <[email protected]> wrote:
>
>
>
> > Hi Everyone,
>
> > Let's assume we have 2 databases db1, db2 with exactly the same
> > structure.
>
> > I need to write a function that imports all the records from db2 to
> > db2 conserving appropriate structure, references on copied records.
> > (of course copying records from one table to another is not good
> > because of auto-incremented ids)
>
> > Treatment of duplicates could be configurable, or we can assume for
> > now that we always create duplicated records (as long as "unique" does
> > not forbid that).
>
> > I could code this to work in particular case of my particular
> > database.
> > Then, I thought that maybe it's worth to write a generic function, a
> > plugin, that works for any given database and a set of records:
>
> > def importToDb(db1, db2, list_of_tablenames, ...):   # Copies records
> > from all tables on the list from db2 to relevant tables in db1
> >     ...
>
> > Probably this function should use mechanisms which are used inside
> > appadmin?
>
> > I'm posting this hoping that maybe someone did something like that
> > before, or maybe has some clues/ideas how to program that?
>
> > Thanks,
> > Maciek


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