On Feb 27, 2013, at 5:46 PM, David Avendasora wrote:
> > On Feb 28, 2013, at 8:35 AM, Ramsey Gurley <[email protected]> wrote: > >> >> On Feb 27, 2013, at 5:07 PM, David Avendasora wrote: >> >>> >>> On Feb 28, 2013, at 3:00 AM, Ramsey Gurley <[email protected]> wrote: >>> >>>>> >>>>> I've looked at a couple ways, but I'm not sure what is the best strategy. >>>>> I'm thinking creating a custom D2W Assignment subclass is the way, but >>>>> I'm not sure. >>>> >>>> If you aren't storing them, you can probably come up with a decent >>>> solution using a single assignment. It would just need some sort of >>>> permission manager object to consult. Maybe that comes from the rules or >>>> maybe a thread local. >>> >>> >>> What I was thinking of is something similar to the QueryDatasourceDelegate >>> where you could define a delegate class that would have the logic to filter >>> the array of displayPropertyKeys prior to them being returned by the >>> D2WContext. >>> >>> Simply create a rule that defines what delegate it should use to filter the >>> displayPropertyKeys prior to returning them. The logic of why or how to >>> filter is entirely up to the developer - it could be based on user >>> preference or permissions triggering it would be controlled by the rule >>> system. >>> >>> Dave >> >> What you've described actually exists! It's called an Assignment ;-) >> >> Ramsey >> > > > Okay, maybe I'm missing a fundamental concept (no shocker there). So how do I > tell it to go use the delegate instead of providing a list of keys manually > in a rule? > > Dave With a rule, of course :-) 100: *true* => displayPropertyKeys = "" [DavesAssignment] Notice there's no value on the rule. There could be, but there doesn't have to be. And now all your displayPropertyKeys everywhere will be set by DavesAssignment. Ramsey
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