Thanks Il giorno giovedì 20 aprile 2017 15:40:33 UTC+2, Marvix ha scritto: > > https://docs.python.org/2/library/functions.html#any > > def any(iterable): > for element in iterable: > if element: > return True > return False > > so any() return true if one (or more) of the elements is True. > > > this: > > auth.has_membership(role) for role in list_of_roles > > try all the roles in the list. > > so if one of the auth.has_membership() return true, the lamba function return > true. > > > > 2017-04-20 14:36 GMT+02:00 Andrea Fae' <and...@gmail.com <javascript:>>: > >> But... "any"? I need some more information about lambda I think....where >> to find this syntax with any? >> where is written what you told about evaluation? >> Thank you very much >> >> >> Il giorno mercoledì 19 aprile 2017 17:30:06 UTC+2, Anthony ha scritto: >>> >>> First, when using auth.requires(), it is best to put the test inside a >>> lambda (or standard function) so it will not be evaluated until the >>> decorated function is actually called (otherwise, the test will be >>> evaluated whenever the controller file is accessed). >>> >>> Anyway, you can do something like this: >>> >>> list_of_roles = ['role1', 'role2', 'role3'] # You could get this list >>> via a database query >>> >>> @auth.requires(lambda: any(auth.has_membership(role) for role in >>> list_of_roles)) >>> def myfunc(): >>> ... >>> >>> Anthony >>> >>> On Wednesday, April 19, 2017 at 8:14:53 AM UTC-4, Andrea Fae' wrote: >>>> >>>> For example I have this type of functions: >>>> >>>> # sono autorizzati i vari manager a seconda della sede >>>> @auth.requires(auth.has_membership('Total-manager') | >>>> auth.has_membership('Conegliano-studente') | >>>> auth.has_membership('Pordenone-manager') | >>>> auth.has_membership('Pordenone-studente') | >>>> auth.has_membership('Udine-studente')) >>>> def appuntamenti_studente(): >>>> # recupero lo studente selezionato >>>> studente = request.args(0) >>>> # recupero il gruppo >>>> # query per recuperare il nome dello studente >>>> query_nome_studente = db.auth_user.id == studente >>>> # recupero nome e cognome dello studente >>>> row = >>>> db(query_nome_studente).select(db.auth_user.first_name,db.auth_user.last_name).first() >>>> #seleziono gli eventi dello studente >>>> query = (db.evento.studenti.contains(studente)) >>>> eventi_stud = db(query).select() >>>> # imposto la grid per far vedere gli eventi dello studente >>>> exportcls = dict(csv_with_hidden_cols=False, html=False, >>>> json=False, tsv_with_hidden_cols=False, tsv=False) >>>> # solo se lo studente corrisponde a chi si è loggato >>>> if (str(auth.user.id) == studente): >>>> #print 'sono al form normale' >>>> form = SQLFORM.grid(query, args=[studente], >>>> fields=[db.evento.titolo, >>>> db.evento.inizio,db.evento.fine,db.evento.risorsa, db.evento.materia, >>>> db.evento.docente],create=False, details=False, editable=False, >>>> deletable=False, maxtextlength=60, exportclasses = exportcls) >>>> else: >>>> redirect(URL('default','index')) >>>> return locals() >>>> >>>> I'm testing different "fixed" values in the @auth.requires, but they >>>> can be more or less depending on how many roles are in the db. I'd like to >>>> do this dynamically from the db, extracting and compising this >>>> @auth.requires line in dynamic way. Is it possible? Do you have any >>>> examples? Thank you >>>> >>> -- >> 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+un...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > >
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