SLaVKa wrote:
Hey guys... implementing a permission system and just wanted some advice.
If i have permission A
which has implied permissions B and C
How do the permissions relate to each other, for eg if I select
permission A to true, that implies that permission B and C must be set
to true, but then if I set B to false or C to false, or both does that
affect permission A?
Assuming that B, and C dont have implied rights you should be able to
turn both of them off while leaving A on, but then that breaks the rule
for A having implied permissions B and C.
Any help appreciated.
I dont know the Grammar for specifying logic anymore, but
IF A implies B + C, then reverse logic should imply that if !( B && C)
== !A. In other words, it shouldnt matter which of B or C is false.
Or you could specify if ((!B) || (!C)) then A==FALSE.
But more importantly, YOU are specifying the permission system, so you
must define the priority, implications, etc..
I would personally prefer a rule which had A = ( B && C ). In other
words, A does not imply B and C are true, but is defined by there being
true, or is dependent. The possible confusion wil come when you specify
permissions as 'implications' rather than as combinations of 'conditions'.
My 2 cents.
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