Hi Geert Please send me SVN login/password but i don't know when i can find free time for this modification :(
Geert Bevin wrote: > > Hi Maxim, > > > > However, if you do feel that adding column automatically is that > important, feel free to contribute it to rife-contrib. If you want I > can provide you with an SVN login/password for the repository. You'll > have a bit of work to add to RIFE/core also since there's no query > builder for AlterTable yet. I will probably be adding that in a > couple of weeks/months, however if you want to leverage that sooner > you can look at the existing query manager to see how they're built. > It shouldn't be very difficult to write this new one. > > Best regards, > > Geert- > > On 26 Dec 2006, at 10:50, Maxim Grigoriev wrote: > >> >> Hi Geert >> >> I think that 70% of all changes during development are new columns, >> new >> tables. >> Especially it's hard to make with new CMF columns. >> And if this problem will be solved, only 30% of problems will remain. >> Hibernate makes columns adding, not removing or type changing. I've >> never >> spent much time for these 2 operations. But now i'm spending much >> time to >> understand where should i add my column. >> You're right about other problems but they're complex and almost >> non-automized. >> >> Maybe it can be easy to implement some ui for crud objects where >> user can >> easy manage columns ? >> >> >> Geert Bevin wrote: >>> >>> Hi Maxim, >>> >>> I agree that this would be a useful feature. The reason why this >>> hasn't been implemented yet is that this is only a small part of a >>> very difficult topic that is schema migration. Once you start going >>> down this road, people will expect more of it. For example, changing >>> the data types of your properties, deleting properties, normalizing >>> or splitting tables, etc etc. This almost becomes impossible to do >>> 'automatically'. You say that Hibernate supports this, but I've never >>> really seen it working reliably. When I for example upgrade >>> Confluence, it's recommended by Atlassian to dump the entire DB and >>> recreate it from scratch instead of using the schema migration >>> functionality. >>> >>> There are difficult questions that come into play with regards to >>> what happens with existing data, how to handle complex relations that >>> rely on other modifications, etc etc. If you couple these with the >>> fact that many databases don't expose a lot of information through >>> JDBC meta data, it can become very tricky next to impossible to do >>> right. >>> >>> I personally prefer thinking more along the lines of a schema >>> migration framework, like what Rails provides. We kind of discussed >>> this on the list a while ago, but nobody ever got enough time to >>> implement it until now: >>> http://www.nabble.com/CRUD-and-Table-Creation-tf1652964.html#a4606148 >>> >>> Best regards, >>> >>> Geert >>> >>> >>> On 25 Dec 2006, at 17:21, Maxim Grigoriev wrote: >>> >>>> >>>> I've just created this issue >>>> http://uwyn.com/issues/browse/RIFECRUD-4 >>>> I think it will be very usefull feature. >>>> -- >>>> View this message in context: http://www.nabble.com/Make- >>>> CreateCrudStructureParticipant-to-update-db-schema- >>>> tf2879818.html#a8047477 >>>> Sent from the RIFE - users mailing list archive at Nabble.com. >>>> >>>> _______________________________________________ >>>> Rife-users mailing list >>>> Rife-users@uwyn.com >>>> http://lists.uwyn.com/mailman/listinfo/rife-users >>>> >>> >>> -- >>> Geert Bevin >>> Uwyn "Use what you need" - http://uwyn.com >>> RIFE Java application framework - http://rifers.org >>> Music and words - http://gbevin.com >>> >>> >>> _______________________________________________ >>> Rife-users mailing list >>> Rife-users@uwyn.com >>> http://lists.uwyn.com/mailman/listinfo/rife-users >>> >>> >> >> -- >> View this message in context: http://www.nabble.com/Make- >> CreateCrudStructureParticipant-to-update-db-schema- >> tf2879818.html#a8052055 >> Sent from the RIFE - users mailing list archive at Nabble.com. >> >> _______________________________________________ >> Rife-users mailing list >> Rife-users@uwyn.com >> http://lists.uwyn.com/mailman/listinfo/rife-users >> > > -- > Geert Bevin > Uwyn "Use what you need" - http://uwyn.com > RIFE Java application framework - http://rifers.org > Music and words - http://gbevin.com > > > _______________________________________________ > Rife-users mailing list > Rife-users@uwyn.com > http://lists.uwyn.com/mailman/listinfo/rife-users > > -- View this message in context: http://www.nabble.com/Make-CreateCrudStructureParticipant-to-update-db-schema-tf2879818.html#a8278033 Sent from the RIFE - users mailing list archive at Nabble.com. _______________________________________________ Rife-users mailing list Rife-users@uwyn.com http://lists.uwyn.com/mailman/listinfo/rife-users
