[Zope] Counter and concurrent access

[Paul Everitt]

We wanted to enforce some rules that had to be enforced before someone 
could get to a File.  For instance, you had to register, or you were on 
a list of beta candidates, or you had to come from a certain page, or 
you wanted to record a log of who got to it, etc.

When this was done there were no ZClasses, so it was a pretty 
heavyweight activitiy to make a slight customization to enforce these 
policies.

--Paul

marc lindahl wrote:

> 
>>From: Paul Everitt <paul@zope.com>
>>
>>As the one behind "precondition" several years ago, I cringe to see it
>>brought up in public. :^)  An example of a reasonable idea that, years
>>later, you just hate to be associate with.
>>
> 
> So you're the one!  :)
> 
> Seriously, though... I uncovered this (for myself, anyway) when working on
> my Audio product, and though the it seemed a good idea... but I'm still
> wondering for what :)  Is it a nifty solution in search of a problem, or has
> someone found a truly unique use for it?  Or should it be, er, demoted?
> 
>