OK, so what does your code look like? Why can't you preserve the id's? Anthony
On Monday, October 10, 2016 at 9:43:50 AM UTC-4, luis.vallada...@metamaxzone.com wrote: > > I thin that method doesnt work for me, let me explain better what i want > to do: > > 6 months ago i released a production APP, now we will launch the second > version of this app and there are several (big) differences between the > database structure in production and the one i will deploy now, but i dont > want to lose all the data collected in production, so what i want to do can > be resumed in 3 steps: > > 1. Get all the information from the production database with the OLD > structure > 2. Format this information to the NEW structure (some fields will be > deleted, other will be added... there are several changes) > 3. Insert this data in the NEW structure database. > > Also, this app is created with a microservices architecture which means > that i dont have only one database, instead i've 14 database that have > cross data between them (i mean, the id stored for a user in the users > database are also used in several other databases as reference to the user) > > So because this if i change the ids i will need to make a big coherence > check around my 14 databases, with (approximately) 10 tables each one, this > is a big deal as you can see. > > Thanks a lot for the help and i hope you can keep helping me. > > El jueves, 6 de octubre de 2016, 14:19:49 (UTC-4), Anthony escribió: >> >> Do you really need the id's to remain the same? Note, if you use this >> method >> <http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#CSV--all-tables-at-once-> >> >> to migrate, web2py will automatically update any reference fields so they >> contain the new ids of referenced records. >> >> Anthony >> >> On Wednesday, October 5, 2016 at 5:47:36 PM UTC-4, >> argenio...@metamaxzone.com wrote: >>> >>> I'm doing a migrate data of 2 databases with diferents tables. >>> >>> My only problems is with ids! >>> >>> table 1 >>> id: 5, name: Diana >>> id: 8, name: Carlos >>> >>> >>> when i migrate this data to databases 2 >>> id: 1, name: Diana >>> id: 2, name: Carlos >>> >>> Look the id's not the same. >>> >>> what is the method to save the same id? >>> I read about primarekey parameters but dont work. >>> >>> The process of migrate if a script with 2 Pydal, one for the old >>> database and other for new databases. >>> I execute one select() of everithing (not much data), later convert to >>> the new structure and all work perfectly. the only problem is with ID . >>> >>> Please help me, thanks. >>> >> -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
