Re: [Zope-dev] ZPatterns: missing docstring in getItem()

2000-07-13 Thread Steve Alexander

"Phillip J. Eby" wrote:
 
 Changes checked in.  I should be releasing an alpha5 tomorrow.

That's great. Did you get my message about errors in triggered methods?
I realised that I only sent it to the zope-dev list, and not cc-ed to
you.

 I had hoped to finish my work on proxy roles, ZClass plugins, 

Does that increase the number of "Waaa!" comments in the code?

 and maybe even my local-roles stuff first and make it a "beta" release, 

*If* you get time, can you put a note on the ZPatterns Wiki, or to the
zope-dev mailing list briefly describing what proxy roles, and local
roles mean in the context of ZPatterns? Thanks.

(Of course, if any other ZPatterns gurus can answer that...)

--
Steve Alexander
Software Engineer
Cat-Box limited
http://www.cat-box.net

___
Zope-Dev maillist  -  [EMAIL PROTECTED]
http://lists.zope.org/mailman/listinfo/zope-dev
**  No cross posts or HTML encoding!  **
(Related lists - 
 http://lists.zope.org/mailman/listinfo/zope-announce
 http://lists.zope.org/mailman/listinfo/zope )




Re: [Zope-dev] ZPatterns: missing docstring in getItem()

2000-07-13 Thread Phillip J. Eby

At 08:50 AM 7/13/00 +0100, Steve Alexander wrote:
"Phillip J. Eby" wrote:
 
 Changes checked in.  I should be releasing an alpha5 tomorrow.

That's great. Did you get my message about errors in triggered methods?

Yes, I did, but the solution requires some more thought.  I had thought I
had the "Transactional" machinery set up so that stuff was only called
during transaction phases where it was safe to throw errors.  So I'm going
to have to go back and review that.  However, I also think that errors in
triggers should result in a rollback-and-abort, rather than silently
failing, which could cause many other problems.

I realised that I only sent it to the zope-dev list, and not cc-ed to
you.

Not necessary; my reading rate simply varies.  :)


 I had hoped to finish my work on proxy roles, ZClass plugins, 

Does that increase the number of "Waaa!" comments in the code?

No, I hadn't even got that far yet.  :)


 and maybe even my local-roles stuff first and make it a "beta" release, 

*If* you get time, can you put a note on the ZPatterns Wiki, or to the
zope-dev mailing list briefly describing what proxy roles, and local
roles mean in the context of ZPatterns? Thanks.

The proxy roles stuff is for Generic providers and triggers, so that when
they execute your expressions they can have roles other than those of the
current user, which is important for constructing secure applications.  The
local roles stuff is the ability to have a DataSkin get local role
information from "local role providers", thus allowing rules-based local
roles to exist/co-exist with the standard Zope persistently-managed local
roles.

One aspect that will be considered in the local roles work is adjusting the
LoginUser class so that it can use more efficient ways of checking access
to an object if it's a DataSkin.  The built-in Zope approach has to look
for *all* local roles that a user has, even when it only wants to know
about one of them.  In general I'd like to see Zope's local role API's
tightened up in this fashion.  Another tightening would be to use the user
object rather than the user's ID or name when calling local-roles API's,
since a rule-based approach may need to consult data on the user object.


___
Zope-Dev maillist  -  [EMAIL PROTECTED]
http://lists.zope.org/mailman/listinfo/zope-dev
**  No cross posts or HTML encoding!  **
(Related lists - 
 http://lists.zope.org/mailman/listinfo/zope-announce
 http://lists.zope.org/mailman/listinfo/zope )




Re: [Zope-dev] ZPatterns: missing docstring in getItem()

2000-07-13 Thread Steve Alexander

"Phillip J. Eby" wrote:
 
 That's great. Did you get my message about errors in triggered methods?
 
 Yes, I did, but the solution requires some more thought.  I had thought I
 had the "Transactional" machinery set up so that stuff was only called
 during transaction phases where it was safe to throw errors.  So I'm going
 to have to go back and review that.  However, I also think that errors in
 triggers should result in a rollback-and-abort, rather than silently
 failing, which could cause many other problems.

Right. So the application designer has the choice of whether to put
their methods that are called by GenericTriggers in try-except blocks,
if it doesn't matter if the trigger fails. But it is generally assumed
that triggers need to run without exceptions for the application to work
consistently.

--
Steve Alexander
Software Engineer
Cat-Box limited
http://www.cat-box.net

___
Zope-Dev maillist  -  [EMAIL PROTECTED]
http://lists.zope.org/mailman/listinfo/zope-dev
**  No cross posts or HTML encoding!  **
(Related lists - 
 http://lists.zope.org/mailman/listinfo/zope-announce
 http://lists.zope.org/mailman/listinfo/zope )




Re: [Zope-dev] ZPatterns: missing docstring in getItem()

2000-07-12 Thread Phillip J. Eby

At 11:05 PM 7/12/00 +0100, Steve Alexander wrote:
ZPatterns 0.4.0a4

The file "version" reports it to be "ZPatterns-0-4-0a1". That gave me a
shock! I thought for a moment that I'd been working on an obsolete
edition :-)

Specialists.py, line 28, method getItem() needs a docstring.


Changes checked in.  I should be releasing an alpha5 tomorrow.  I had hoped
to finish my work on proxy roles, ZClass plugins, and maybe even my
local-roles stuff first and make it a "beta" release, but real life has
been very much in the way of that sort of thing this week.  :(


___
Zope-Dev maillist  -  [EMAIL PROTECTED]
http://lists.zope.org/mailman/listinfo/zope-dev
**  No cross posts or HTML encoding!  **
(Related lists - 
 http://lists.zope.org/mailman/listinfo/zope-announce
 http://lists.zope.org/mailman/listinfo/zope )