What I want is to prevent more than 10 entries of children per selected parent
On Sunday, December 12, 2021 at 1:45:31 PM UTC+2 Clemens wrote: > Hello! > > Your are not referencing the parent table. I think, what you want to > address, is as follows: > if db((db.*parent*.id>0) & (db.children.parent==parent.id)).count() >=10: > ... > > Then the error should not occur and you are get all parents with more than > 10 children. > > Regards > Clemens > > > On Sunday, December 12, 2021 at 9:29:11 AM UTC+1 mostwanted wrote: > >> I am trying to create a short validator that limits the number of >> children that can be listed under one parent but I'm having a problem with >> the highlighted line because I cant use *parent.id <http://parent.id> *to >> specify the selected parent when the parent variable is referenced outside >> the validator function. I rightfully get: >> *<type 'exceptions.NameError'> global name 'parent' is not defined* >> >> Anyone on ideas on how to work around this? >> >> def my_validator(form): >> * if db((db.children.id <http://db.children.id>>0) & >> (db.children.parent==parent.id <http://parent.id>)).count() >=10:* >> form.errors.children_names=SPAN("The number of children has >> exceeded the required number") >> >> def registration(): >> * parent=db.parent(request.args(0, cast=int)) #referenced outside the >> validator function* >> db.children.parent.default=parent.id >> form=SQLFORM(db.children) >> if form.process(onvalidation=my_validator).accepted: >> response.flash=T('Client Registered') >> return locals() >> > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/web2py/29e7c1b4-ecd7-424d-8b37-f5cb8baa8d2cn%40googlegroups.com.
