I think you are mistaken... ondelete is for use with upload and reference fields...
http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#Field-constructor On Fri, Mar 21, 2014 at 1:54 PM, PN <pal...@fielddiagnostics.com> wrote: > Your desired behavior is that when a color is deleted it should be set to > null in tshirts, so you need to put the ondelete attribute in the color > field in the color table instead of on the colors field in the tshirt table. > > db.define_table('color', > Field('color', 'string', ondelete="SET NULL")) > > > db.define_table('tshirt', > Field('name', 'string'), > Field('colors', 'list:reference color')) > > > On Thursday, March 20, 2014 2:15:56 PM UTC-4, André Kablu wrote: >> >> I have 2 tables, using sqlite: >> >> db.define_table('color', >> Field('color', 'string')) >> >> >> db.define_table('tshirt', >> Field('name', 'string'), >> Field('colors', 'list:reference color', >> ondelete="SET NULL")) >> >> >> When I delete a color, all tshirts that have this color will break with >> the error message: >> "using a recursive select but encountered a broken reference" >> >> >> So the delete() is not putting NULL on the reference... >> >> This is a bug right? Not the correct behavior... >> >> I was using list:reference b/c it seems much easier than building 3 >> tables... but now I am not sure if it is good to be used once it is not >> "automatic"... >> >> >> >> >> >> -- > 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 a topic in the > Google Groups "web2py-users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/web2py/TycU_Q-ywYI/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > web2py+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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.
