yes
On May 28, 3:44 am, Mathieu Clabaut <[email protected]> wrote: > I guess that one may want some more constraints on the autoincrement field. > For example, it shall begin at 100 for ecample. > It may be because for example, before the application exists some paper > records where made which were referenced by number < 100) > > For such a problem, I've set up with: > > Field('ref_number', compute=lambda r: r['id'] + 100) > > Which I hope would eliminate the race solution as it is calculate upon > insertion in the database... Is it the case ? > > -Mathieu > > On Thu, May 27, 2010 at 23:25, mdipierro <[email protected]> wrote: > > What is wrong with the default id field that web2py creates for every > > table? > > > On May 27, 3:16 pm, matclab <[email protected]> wrote: > > > Hello, > > > I'm finding this message in a thread from February... > > > > I thought that autoincremented field would guaranty unicity in the > > > table. > > > I'm afraid the provided solution would allow two record to have the > > > same autonumber field (think about an access from two users at the > > > same time). > > > I guess the autoincrement should be done on the DAL or database side, > > > inside a transaction.... > > > > What do you think about it ? > > > > On 19 jan, 21:38, Thadeus Burgess <[email protected]> wrote: > > > > > max_id= db(db.table.autonumber>1).select(db.table.autonumber, # > > > > select all records, and only pull the autonumber column > > > > orderby=~db.table.autonumber, # > > > > descending sort on the autonumber, (highest first) > > > > limitby=(0,1) # limit the query and > > > > only select the first record > > > > ).first().autonumber # pull the first record > > > > from the web2py rows object, and get its autonumber member > > > > > db.table.autonumber.default = max_id + 1 # Set the table default as > > > > the last autonumber and incremented by one. > > > > db.table.autonumber.writable = False > > > > > form = crud.create(db.table) > > > > > -Thadeus > > > > > On Tue, Jan 19, 2010 at 4:32 AM, ceriox <[email protected]> wrote: > > > > > thanks for the reply but i'm not a good web2py programmer ... i > > > > > writing my first real app > > > > > you can write the code for my request? (i can't understand the post > > of > > > > > your link) > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > Groups "web2py-users" group. > > > > > To post to this group, send email to [email protected]. > > > > > To unsubscribe from this group, send email to > > [email protected]<web2py%[email protected]> > > . > > > > > For more options, visit this group athttp:// > > groups.google.com/group/web2py?hl=en.
