date:20000620


At 11:54 AM 6/20/00 +0300, Itamar Shtull-Trauring wrote:
"Phillip J. Eby" wrote:

 * The missing _objectChanged() message - it was very hard to track down,
 because everything appeared to be working right, except for the fact that
 it wasn't working.  Turns out that _v_status_ (the variable, not the
 method) was an empty string.  Which meant that what looked like
 self.__dict__['_v_status_'] in code was actually self.__dict__['']. 

Now I'm having problems with changing objects - 

   Error Type: KeyError
   Error Value: _v_status_
..
  File /home/Zope2/lib/python/Products/ZPatterns/DataSkins.py, line 192, in
__set_attr__
  File /home/Zope2/lib/python/Products/ZPatterns/DataSkins.py, line 137, in
_objectChanging
KeyError: (see above)


As far as I can tell _v_status_ is not initialized at any point, which is
what causes the problem.


Huh?  Oh, %#()@%...  I fixed that in my working copy, but didn't check it
into CVS before building a release .tgz yesterday...   Argh.  Line 137 of
DataSkins.py *should* read:

if self._v_status_ is not ChangedStatus:

Sorry, everyone.  I've checked in this fix, along with the one for Mike's
"missing _v_dm_" problem, and uploaded an alpha3 release.

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Re: [Zope-dev] Test request: ZSession - ZPatterns based session manager


At 08:58 PM 6/19/00 +0800, mike wrote:

http://www.zope.org/Members/RainDog/ZSession/ZSession-0.0.2.tar.gz/view

Comments?


Now that I've had a chance to really look at this (while tracking down one
of the bugs you found), I do have a few comments.

First, nice job...  It's a good adaptation use of ZPatterns.  I do have
some suggestions for fine tuning, though.

* Rather than putting property manipulation functions right into the base
Session class, I would simply let users derive ZClasses of their own from
Session.  They could then actually give the Session a UI of its own, for
example.  Think of someone creating a Session subclass called "Shopping
Cart", with methods for viewing, checking out, adding/deleting items, etc.
Or, if they have many subsystems which want to share the same Session
objects, they could do this by having each subsystem use a different
propertysheet of the same Session object.

IMHO, the basicSheet stuff you've done, while convenient, encourages
developers to take the quick-and-dirty route of just using the Session as a
place to store variables - and that throws away a lot of the usefulness of
ZPatterns.  For one thing, you've guaranteed that Sessions have to be
stored as persistent objects in the ZODB, or at least that the basicSheet
has to support arbitrary properties.

* Make dead session removal something that doesn't happen automatically, or
at least have an option to do so.  Your default deletion algorithm would be
very expensive when executed against a non-ZODB database, and would be more
efficiently done a few times a day in large batches by a cron job.

* Delegate determining which sessions are dead to the Rack, rather than
doing it in the Specialist.  This allows an SQL implementation to make use
of indexes.  Specifically, make removeDead call:

self._getSource().findIdleSessions(self.session_ttl)

And then provide a default implementation of findIdleSessions() in the
Specialist.  (Btw, please note that your current implementation absolutely
requires that at least *some* session data be stored persistently in the
ZODB, which if you're using a FileStorage, is a bad place for it to be.)
Now, the whole thing works the same way when first installed, but if
someone implements the session ID and lastAccessed attributes in an SQL
database, they can substitute a different implementation for
findIdleSessions() by putting it in the Rack.


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Re: [Zope-dev] ZPatterns alpha 3 released (was re: ZPatterns0.4.0a2 bug fixes)


At 10:25 PM 6/20/00 +0800, mike wrote:
"Phillip J. Eby" wrote:
 

 Huh?  Oh, %#()@%...  I fixed that in my working copy, but didn't check it
 into CVS before building a release .tgz yesterday...   Argh.  Line 137 of
 DataSkins.py *should* read:
 
 if self._v_status_ is not ChangedStatus:
 
 Sorry, everyone.  I've checked in this fix, along with the one for Mike's
 "missing _v_dm_" problem, and uploaded an alpha3 release.
 

Thank you, Phillip. I've spent all the evening hunting these bugs.
By the way, how do you debug? Is there better way than inserting things
like

   print "objectChanging %s, has status=%d" % (
   self, self.__dict__.has_key('_v_status_')
   )


I haven't found one yet.  I'm actually using zLOG.LOG calls, however, to a
logfile, so I can look back at things easily (and because I didn't realize
you could use print until you posted this...  :) ).


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[Zope-dev] Re: Objet : Re: ZScheduler-0.0.5 problem

2000-06-20 Thread Loren Stafford


This is going to be hard to debug remotely. Can you help me out?

First try getting ZScheduler 0.0.6 which fixes a problem of non-responsive
Zope, though there the problem was on shut-down not on start-up. Be sure you
have STUPID_LOG_FILE working. Then uncomment some of my debugging statements
(calls to loggerr) in the source of __init__.py and  Dispatcher.py -- maybe
add some instrumentation yourself -- all with the goal of observing how far
it runs before Zope hangs. Maybe you'll have to activate one of the #import
pdb; pdb.set_trace() statements (in an appropriate place, of course).

Also, are there any entries in the Zope log or system log that are seem
relevant?

The only other thing that comes to mind is that ZScheduler depends on
Python's threading module, so you must have a version of threading that
works on your OS. I don't know whether there are any "gotchas" with respect
to Python threading on Linux (Linux 6.1, I386, Zope-2.1.7.). Maybe someone
else can step in and let us know if there are.

Please continue to copy [EMAIL PROTECTED]

-- Thanks
-- Loren

- Original Message -
From: "Francois-Regis CHALAOUX"
[EMAIL PROTECTED]
To: "Receipt Notification Requested" [EMAIL PROTECTED]
Sent: June 20, 2000 06:48 AM
Subject: Objet : Re: ZScheduler-0.0.5 problem


 Hi Loren,

 loren1. Zope 2.1.7 has been withdrawn due to CVS confusion. Can you
 reproduce the
 problem on another version, such as 2.1.6?. Is there any indication of why
 it won't start (error message)? Did you start it with -D set, so it would
 display errors on the console?/loren

 Yes, the script start script contains '-D "$@"' but nothing is displayed
on
 the console when I try to fetch an object from zope.
 Zope is is blocked and that's all :(


  Hi,
 
  1/ I'm Trying to use ZScheduler-0.0.5 on Linux 6.1, I386, Zope-2.1.7.
  Just after to install the product I cannot start Zope !!!
 
  2/ There is also an archive problem when I extract the file from
  ZScheduler-0.0.5.tgz :
 
  srchocolat 138% tar xvzf ZScheduler-0-0-5.tgz
  lib/python/Products/ZScheduler/
  lib/python/Products/ZScheduler/__init__.py
  lib/python/Products/ZScheduler/addOneTimeZEvent.dtml
  lib/python/Products/ZScheduler/README.txt
  lib/python/Products/ZScheduler/CHANGES.txt
  lib/python/Products/ZScheduler/ZSchedule.py
  lib/python/Products/ZScheduler/version.txt
  lib/python/Products/ZScheduler/ZEvent.py
  lib/python/Products/ZScheduler/Loggerr.py
  lib/python/Products/ZScheduler/Dispatcher.py
  lib/python/Products/ZScheduler/documentEdit.dtml
  lib/python/Products/ZScheduler/scheduleView.dtml
  lib/python/Products/ZScheduler/www/
  lib/python/Products/ZScheduler/www/OneTimeZEvent.gif
  lib/python/Products/ZScheduler/www/RecurringZEvent.gif
  lib/python/Products/ZScheduler/www/ZSchedule.gif
 
  gzip: stdin: decompression OK, trailing garbage ignored
  tar: Le processus enfant a retourné le statut 2
  tar: Statut d'erreur reporté d'erreurs précédentes.
  srchocolat 139%
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 









































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Re: [Zope-dev] Test request: ZSession - ZPatterns basedsession manager

2000-06-20 Thread mike


"Phillip J. Eby" wrote:
 
 At 08:58 PM 6/19/00 +0800, mike wrote:
 
 http://www.zope.org/Members/RainDog/ZSession/ZSession-0.0.2.tar.gz/view
 
 Comments?
 
 
 Now that I've had a chance to really look at this (while tracking down one
 of the bugs you found), I do have a few comments.
 
 First, nice job...  It's a good adaptation use of ZPatterns.  I do have

Thanks.

 some suggestions for fine tuning, though.
 
 * Rather than putting property manipulation functions right into the base
 Session class, I would simply let users derive ZClasses of their own from
 Session.  They could then actually give the Session a UI of its own, for

I put those get/set/has stuff just for make easier life of some lazy
people (like me :-)

 example.  Think of someone creating a Session subclass called "Shopping
 Cart", with methods for viewing, checking out, adding/deleting items, etc.
 Or, if they have many subsystems which want to share the same Session
 objects, they could do this by having each subsystem use a different
 propertysheet of the same Session object.

Well, well, well. As for me, beter I've set up a Client abstraction
which have access to CartManager and store cart_id in the session
object. Mixing Session and Cart is not a good idea just because Client
can have several carts, for example. The composition is better than
inheritance in this case, Phillip :-)

 IMHO, the basicSheet stuff you've done, while convenient, encourages
 developers to take the quick-and-dirty route of just using the Session as a
 place to store variables - and that throws away a lot of the usefulness of
 ZPatterns.  For one thing, you've guaranteed that Sessions have to be
 stored as persistent objects in the ZODB, or at least that the basicSheet
 has to support arbitrary properties.

But without this stuff people will have to code ZClasses each time they
want sessions. Hmm... I guess the best way is splitting current session
class into two - simple Session and LazySession.

 * Make dead session removal something that doesn't happen automatically, or
 at least have an option to do so.  Your default deletion algorithm would be
 very expensive when executed against a non-ZODB database, and would be more
 efficiently done a few times a day in large batches by a cron job.

Moreover, I found a bug which causes infinite loop :-( You're right,
automatic removal should be optional. Will be fixed in 0.0.3 release.
 
 * Delegate determining which sessions are dead to the Rack, rather than
 doing it in the Specialist.  This allows an SQL implementation to make use
 of indexes.  Specifically, make removeDead call:
 
 self._getSource().findIdleSessions(self.session_ttl)
 
 And then provide a default implementation of findIdleSessions() in the
 Specialist.  (Btw, please note that your current implementation absolutely
 requires that at least *some* session data be stored persistently in the
 ZODB, which if you're using a FileStorage, is a bad place for it to be.)
 Now, the whole thing works the same way when first installed, but if
 someone implements the session ID and lastAccessed attributes in an SQL
 database, they can substitute a different implementation for
 findIdleSessions() by putting it in the Rack.

Agree with you completely.

Thanks,
Mike

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[Zope-dev] Announce: ZSession-0.0.3a

2000-06-20 Thread mike


In short:

1. URL = http://www.zope.org/Members/RainDog/ZSession
2. It works.
3. I need more comments/suggestions

Mike

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Re: [Zope-dev] Test request: ZSession - ZPatterns basedsession manager


At 10:51 PM 6/20/00 +0800, mike wrote:
"Phillip J. Eby" wrote:
 example.  Think of someone creating a Session subclass called "Shopping
 Cart", with methods for viewing, checking out, adding/deleting items, etc.
 Or, if they have many subsystems which want to share the same Session
 objects, they could do this by having each subsystem use a different
 propertysheet of the same Session object.

Well, well, well. As for me, beter I've set up a Client abstraction
which have access to CartManager and store cart_id in the session
object. Mixing Session and Cart is not a good idea just because Client
can have several carts, for example. The composition is better than
inheritance in this case, Phillip :-)

I look at components in terms of "value add".  Your SessionManager's
value-add is that it lets you transparently create an instance of something
which is associated with a cookie and which can be expired whenever it's
idle for greater than a certain period of time.  But the idea of a
"Session" has no real value-add to me; it just makes it possible for a
thing to be managed by the SessionManager.  You could in fact do without
the Session class altogether, and have SessionManager simply set the
lastAccessed attribute directly.  This would actually make SessionManager
more useful, because you could use it with ZClasses that hadn't been
explicitly designed to be session-based, as long as there was an
AttributeProvider for lastAccessed.  And you could drop the SessionSource
class altogether as well, since any RackMountable/DataSkin would be
acceptable as a "Session".

Popular opinion to the contrary, I don't believe that there is such a thing
as a "session" object.  Session objects are a hack, to give you a place to
put session-specific objects' data.  In my opinion, if you can have
session-specific objects, you don't really need a "session" object.  If one
can simply call CurrentCart() or CurrentGame() (where CurrentCart and
CurrentGame are SessionManager specialists) to retrieve a session-specific
shopping cart or gameboard, why have a "session" object?  If I want them
both to use the same cookie, I can certainly do that by setting the
properties on both CurrentGame and CurrentCart.  And there's also no chance
that two session-specific objects from different vendors (such as perhaps
my Games and Carts) will accidentally collide with each others attributes
or sheets in the "session" object, since they're being handled by seperate
specialists.


 IMHO, the basicSheet stuff you've done, while convenient, encourages
 developers to take the quick-and-dirty route of just using the Session as a
 place to store variables - and that throws away a lot of the usefulness of
 ZPatterns.  For one thing, you've guaranteed that Sessions have to be
 stored as persistent objects in the ZODB, or at least that the basicSheet
 has to support arbitrary properties.

But without this stuff people will have to code ZClasses each time they
want sessions. Hmm... I guess the best way is splitting current session
class into two - simple Session and LazySession.

Yeah, but to my way of thinking, they *should* be coding them, because if
they're not it means they haven't thought their design through enough to
know what *kind* of session-specific object they're making.  To me, there
is no such thing as a session object, only session-specific objects.

In any case, it's not a big deal to make a session-specific object.  Add a
ZClass, base it on DataSkin, set up a "common instance" property sheet, and
boom, you're done.  Now set your session manager's rack to use it, and
you're in business.


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Re: [Zope-dev] ZPatterns alpha 3 released (was re: ZPatterns0.4.0a2 bug fixes)


At 05:49 PM 6/20/00 +0300, Itamar Shtull-Trauring wrote:
 Huh?  Oh, %#()@%...  I fixed that in my working copy, but didn't check it
 into CVS before building a release .tgz yesterday...   Argh.  Line 137 of
 DataSkins.py *should* read:

Great, it works!


Tell me, were you able to use GenericTrigger(s) to do the cataloging?  It
might be more convenient to update/modify than your cataloging-specific
Agent class.  Also, I noticed that your getMemento routine saves the
object's __dict__, but that's of absolutely no value whatsoever, since the
__dict__ is a mutable object and will thus have been changed by the time
you get the commit-time messages.


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[Zope-dev] SOAP?

2000-06-20 Thread David Wilcoxen


I'm trying to find some information about using the SOAP protocol to
communicate with the Zope server. Not having much luck at this point; any
hints or suggestions would be appreciated. Thanks.

David Wilcoxen
Austin, Texas





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RE: [Zope-dev] SOAP?

2000-06-20 Thread Brian Lloyd


 I'm trying to find some information about using the SOAP protocol to
 communicate with the Zope server. Not having much luck at 
 this point; any
 hints or suggestions would be appreciated. Thanks.
 
 David Wilcoxen
 Austin, Texas

Hi David,

Zope doesn't yet support SOAP, though this is expected in the
future.


Brian Lloyd[EMAIL PROTECTED]
Software Engineer  540.371.6909  
Digital Creations  http://www.digicool.com 



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[Zope-dev] censemble communication toolkit and distributed lock manager

2000-06-20 Thread Mark Hayden


I recently announced the availability of censemble
communication toolkit and a distributed lock manager
built using it.  After reading about ZEO and the
plans to turn the Zope Storage Service into a replicated
service, I thought you might find this work useful.

regards, Mark Hayden



CEnsemble Version 0.03

  Download: ftp://24.142.58.202/pub/hayden/

CEnsemble is a toolkit for building reliable distributed
applications.  It provides a library of protocols that can be used
for quickly building complex distributed applications. 

CEnsemble is a rewrite in C of the Ensemble system, which was written
in a dialect of the ML programming language.  More information of
Ensemble can be found at:

  Homepage: http://www.cs.cornell.edu/Info/Projects/Ensemble/index.html
  Download: ftp://cs.cornell.edu/pub/ensemble/

Included with censemble-0.03 is a complete distributed lock manager
(DLM) built using the toolkit.  The DLM can be used either
through a text-based pipe interface or linked into your application
as a C library.  No familiarity with Ensemble is needed to use the
DLM (all the interface is in one header file).  A DLM tutorial is
included (censemble/dlm/README).  The DLM features include:

* Fault-tolerant.  Any of the lock manager processes can fail; the
  system will remain available as long as a quorum (majority) of the
  servers continue running.

* Load balanced: locks are randomly assigned to servers to manage.
  As servers are added or removed from the system, they will reassign
  locks to even the load.

* Reader/writer locks.

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[Zope-dev] DA for postgresql?

2000-06-20 Thread Jephte CLAIN


Hello,

Can anyone tell me about the various Postgresql DA currently available?
I don't know which to take between ZPoPyDA and ZPyGreSQLDA. I installed
both of them, and I can't tell the difference between the two...

This will be for a production server. Is PostgreSQL a good choice?
Actually, I don't have the choice -- I have to use PostgreSQL.

thanks for any input

regards,
jephte clain
[EMAIL PROTECTED]

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[Zope-dev] LoginManager add trouble

2000-06-20 Thread Scott Parish


Using:

Zope2 (cvs)
ZPatterns 0.3.0
LoginManger 0.8.6

When I try to add a LoginManager, I get the following error and traceback.
Any ideas?

sRp

-

Error Type: KeyError
Error Value: _owner

Traceback (innermost last):
  File /a4/srp/Zope2/lib/python/ZPublisher/Publish.py, line 222, in publish_module
  File /a4/srp/Zope2/lib/python/ZPublisher/Publish.py, line 187, in publish
  File /a4/srp/Zope2/lib/python/Zope/__init__.py, line 221, in 
zpublisher_exception_hook
  File /a4/srp/Zope2/lib/python/ZPublisher/Publish.py, line 171, in publish
  File /a4/srp/Zope2/lib/python/ZPublisher/mapply.py, line 160, in mapply
(Object: manage_addLoginManager)
  File /a4/srp/Zope2/lib/python/ZPublisher/Publish.py, line 112, in call_object
(Object: manage_addLoginManager)
  File /a4/srp/Zope2/lib/python/Products/LoginManager/LoginManager.py, line 230, in 
manage_addLoginManager
  File /a4/srp/Zope2/lib/python/OFS/ObjectManager.py, line 249, in _setObject
(Object: ElementWithAttributes)
  File /a4/srp/Zope2/lib/python/AccessControl/Owned.py, line 267, in 
manage_fixupOwnershipAfterAdd
(Object: SheetProviderContainer)
  File /a4/srp/Zope2/lib/python/AccessControl/Owned.py, line 174, in changeOwnership
(Object: SheetProviderContainer)
KeyError: (see above)

-- 
Scott Parish
http://srparish.net

 PGP signature

[Zope] ZServer+SiteAccess+Apache+SSL

2000-06-20 Thread Wayne Izatt


I've just managed to get ZServer running behind Apache with SiteAccess
(thanks for the how-to, anser!)

Now, has anyone managed to configure SSL into a mix like this? Seems to
me I should be able to go through the standard SSL setup for Apache, and
not worry too much more abou the ZServer component of the architecture.

thanks

Wayne


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[Zope] 2.2.0 zclass weirdness

2000-06-20 Thread Roman Milner


I've created a ZClass call HomeDirContainer that inherits from
ObjectManager.  In that ZClass I created another ZClass called
HomeDir.  The idea being that HomeDirs can only exist in
HomeDirContainers.  

So, I add an instance of HomeDirContainer, then go into it and click
"Add"  - which is attempting to post to the current object and pass it
:method=HomeDir_factory.  And I get the following error:

  
Zope Error

Zope has encountered an error while publishing this resource. 

Resource not found

Sorry, the requested Zope resource does not exist.

Check the URL and try again.



Troubleshooting Suggestions

   The URL may be incorrect. 
   The parameters passed to this resource may be incorrect. 
   A resource that this resource relies on may be encountering an error. 

For more detailed information about the error, please refer to the HTML source 
for this page. 

If the error persists please contact the site maintainer. Thank you for your 
patience. 


Traceback (innermost last):
  File /home/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 222, in 
publish_module
  File /home/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 187, in publish
  File /home/Zope-2.2.0b1-src/lib/python/Zope/__init__.py, line 221, in 
zpublisher_exception_hook
(Object: RoleManager)
  File /home/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 162, in publish
  File /home/Zope-2.2.0b1-src/lib/python/ZPublisher/BaseRequest.py, line 427, in 
traverse
  File /home/Zope-2.2.0b1-src/lib/python/AccessControl/User.py, line 414, in validate
(Object: RoleManager)
  File /home/Zope-2.2.0b1-src/lib/python/ZPublisher/HTTPResponse.py, line 520, in 
notFoundError
NotFound: (see above)

Is there something new I need to do in 2.2.0 to make this work - or is
this a bug?  Help is greatly appreciated.

^Roman




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Re: [Zope] 2.2.0 zclass weirdness

2000-06-20 Thread Roman Milner


Well, I figure this out.  HomeDir_factory was getting its Use Factory
permission set to (disabled).  I think this was becuase
HomeDirContaine didn't automatically have "Add HomeDirs" in its list.
Is this a bug?

^Roman



 "RM" == Roman Milner [EMAIL PROTECTED] writes:

RM I've created a ZClass call HomeDirContainer that inherits from
RM ObjectManager.  In that ZClass I created another ZClass called
RM HomeDir.  The idea being that HomeDirs can only exist in
RM HomeDirContainers.

RM So, I add an instance of HomeDirContainer, then go into it and
RM click "Add" - which is attempting to post to the current
RM object and pass it :method=HomeDir_factory.  And I get the
RM following error:

  


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[Zope] comercial products using zope

2000-06-20 Thread Terry Kerr


Hi,

I am researching using zope as a framework for a product that I am going
develop and sell.  I will develop a python product for zope.  The
product will not be open source, so I will only be distributing the byte
code .pyc files, and not the source.  However I understand that it is
possible to decompyle .pyc files back to the sourcealthough I don't
know how difficult this is to do successfully.  Are there any tricks
that I should know about to make this any harder?

Basically I want to know if anyone else has used zope for a commercial
product b4, and how they did it.  Is there anything in particular that I
should know about.  Should I just rely on a good software license to
protect my code?  Also...are .pyc files as platform independent as .py
files?

Any info appreciated.

terry


--
Terry Kerr ([EMAIL PROTECTED])
Adroit Internet Solutions Pty Ltd (www.adroit.net)
Phone:   +613 9563 4461
Fax: +613 9563 3856
Mobile:  +61 414 938 124




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Re: [Zope] Problem with adding items to ZClass instance

2000-06-20 Thread Rik Hoekstra

I don't think there's anything "special" about my ZClass. It's derived from
Catalog Aware and ObjectManager. I believe I reproduced it without the
Catalog Aware and got the same results.

I'm using Andy Dustman's version of the MySQLDA and TinyTable v0.8.2. They
both work just fine once I get the objects in the right place. Maybe the
problem just happens to be with these two products, but I have no clue.

You're welcome to fetch the product at
ftp://ftp.logicetc.com/pub/Zope/IssueTracker.zexp if you want to give it a
look. It's a one day throw-together port of the issue tracking system used
by the PHP project with modifications for my own needs.

OK, I downloaded it and I think I found your problem (not wure how to
remediate this, though). If you look in the source of the management
screen
http://localhost/somefolder/IssueTrackerInstance/manage_main, the
dropdown list for adding Product looks like this:

FORM ACTION="http://localhost/somefolder/IssueTrackerInstance/"
METHOD="GET"
SELECT NAME=":method"
ONCHANGE="location.href='http://localhost/testhier/blup/'+this.options[this.selectedIndex].value"
OPTION value="manage_workspace" DISABLEDAvailable Objects
OPTION value="manage_addProduct/OFSP/documentAdd"DTML Document
OPTION value="manage_addProduct/OFSP/methodAdd"DTML Method
OPTION value="manage_addProduct/MailHost/addMailHost_form"Mail
Host
OPTION value="manage_addTinyTableForm"TinyTable
OPTION value="manage_addProduct/OFSP/manage_addUserFolder"User
Folder
OPTION value="manage_addZMySQLConnectionForm"Z MySQL Database
Connection
/SELECT
INPUT TYPE="SUBMIT" VALUE=" Add "
/FORM

As you see, most of the items have a manage_addProducts/ as a start.
Not so with TinyTables and MySQLConnection. They call the
add_TinyTableForm and manage_addZMySQLConnection form. They do not
switch the namespace to manage_addProduct (not in the form). Why this is
a problem, I can't tell, but this _is_ the problem.

I'm not quite sure about the solution. Probably it's best to make a
custom manage_main form that does the right incantations for adding
products and then map this to your Contents View in the ZCLass
definition.

As a side I'd like to remark that all products should comply with the
same manage_addProduct interface, because the current situation leads to
nasty problems.

Rik

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Re: [Zope] comercial products using zope

2000-06-20 Thread Oleg Broytmann


On Tue, 20 Jun 2000, Terry Kerr wrote:
 I am researching using zope as a framework for a product that I am going
 develop and sell.  I will develop a python product for zope.  The
 product will not be open source, so I will only be distributing the byte
 code .pyc files, and not the source.  However I understand that it is
 possible to decompyle .pyc files back to the sourcealthough I don't
 know how difficult this is to do successfully.  Are there any tricks

   Pretty easy... There are good decompilers there...

 that I should know about to make this any harder?

   I doubt.

 Basically I want to know if anyone else has used zope for a commercial
 product b4, and how they did it.  Is there anything in particular that I
 should know about.  Should I just rely on a good software license to

   I think good license, good support and good price would serve you much
better than any tricks.

 protect my code?  Also...are .pyc files as platform independent as .py
 files?

   Currently yes, but I'd recommend not to rely on this - may change in the
future.

Oleg.(All opinions are mine and not of my employer)
 
Oleg Broytmann  Foundation for Effective Policies  [EMAIL PROTECTED]
   Programmers don't die, they just GOSUB without RETURN.


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Re: [Zope] comercial products using zope

2000-06-20 Thread Anthony Baxter


 Terry Kerr wrote
 Basically I want to know if anyone else has used zope for a commercial
 product b4, and how they did it.  Is there anything in particular that I
 should know about.  Should I just rely on a good software license to
 protect my code?  Also...are .pyc files as platform independent as .py
 files?

Yes. Digital Creations, and the product was called Principia. I don't know
if all the stuff with the mangled and encrypted byte code support is still
there, tho.

Anthony

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[Zope] scared


when things happen that I have no understanding of their cause I get a
little scared.

I started up zope this morning, it seemed to open normally.
(I am running zserver and zope on  a win98 machine)
However when I went to access the site through the web, the server would
shut down.

I have recently exported the app. that I was working on, which makes me
happy but I need to get it back up and working asap.  What information do I
need to get the bottom of this?
I don't know how to copy and paste from a dos window, so I will transcribe
what I can see, hopefully someone can tell me where I might look next! (I
have taken out all the directory structure from the filenames)

File "...\ZServer\medusa\asyncore.py", line 321, in handle_error
self.close()
File "..\ZServer\HTTPServer.py", line 356, in close p.more() #free up
resources held by producer
File "..\ZServer\Producers.py", line 108, in more getattr(self.logger,
self.method)(self.bytes)
File "..\ZServer\medusa\http_server.py", line 275, in log, _ _ [%s] "%s" %d
"%s" "%s"\n' % (  LOG STUFF )
...
IOError: [Errno 9] Bad file descriptor


Oh I feel rotten, way out of my depth!  I just want zope to work!!!
Not really sure where to start, will reinstalling the whole thing write over
my data?
I guess I have it backed up, but still...

thanks for ANY help!!

josh on




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Re: [Zope] scared


Would it be a bad idea to just install another copy of zope in a different
directory?  Would that clash somehow?

josh


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Re: [Zope] scared

2000-06-20 Thread Chris Withers


josh on wrote:
 Would it be a bad idea to just install another copy of zope in a different
 directory?  Would that clash somehow?

Maybe, but not in any bad way, the worst I can see happenign is that
they try and get the same ports on your machine. Just run up one
instance at a tiem to make sure that doesn't happen (it shouldn't
anyway, but it never hurts to be paranoid)

You could also try copying the data.fs from the old install over the one
in the new install if you want to get your old data back, no reason why
it shouldn't work.

As for your error, it looks like something bad happened when zope tried
to write to the log file. Did you do any funny configuration fro your
logging? What version of Zope are you using?

cheers,

Chris

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Re: [Zope] scared


Thanks Chris,

 As for your error, it looks like something bad happened when zope tried
 to write to the log file. Did you do any funny configuration fro your
 logging? What version of Zope are you using?

I haven't changed anything to my knowledge.

It did stop working after a crash though.  Perhaps something is corrupted, I
got a friend to test my site.  He kept rightclicking and choosing "back", as
quickly as he could and then it crashed...

I think the page it crashed on had some .js in it...

erk,

I am using "Notes on Zope 2.0"

oh gee I thought I was using 1.6!

What version would you recommend installing?

Thanks,

josh





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[Zope] ANN: First public release of ZEO

2000-06-20 Thread Paul Everitt



ZEO 0.2, an alpha version of ZEO, is now publicly 
available from the "ZEO page", http://www.zope.org/Products/ZEO/. 
ZEO is the clustering code for Zope.  This version does *not* contain
the multiplexing code that was holding up the release.  Be sure to check
the page for performance numbers posted by Greg Ward.

Enjoy!

--Paul

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Re: [Zope] Expressing expressions

2000-06-20 Thread Tino Wildenhain


Hi RC,

RC Compaan wrote:
 
 Simple addition seems a bit tricky in zope
 
  dtml-var expr="counter=counter+value"  --// Here i tried to

Try dtml-call "REQUEST.set('counter',counter+value)"

HTH
Tino Wildenhain

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[Zope] Basic site management using zope and other queries

2000-06-20 Thread Rajil Saraswat


On Tue, 20 Jun 2000, Rajil Saraswat wrote:

 hi ,
i had sent this message. may be some of you had overlooked it,so here it
is again. please answer to this, as it is very important for me to switch
to zope.

   
 
 1. Can zope do basic site management. for example missing link checks. say
 if we call an object which doesnt exist. can zope show us where we have
 gone wrong.(without actually checking each and every object manually)
 
 2. I have large number of small html documents(17,000). I want them to go
 in a database. can we automate this in zope to be uploaded it in the
 database.
 
 3. Say, i want to use a zope enable webiste on a non zope enabld server,
 so i need all the objects(e.g. html files) from the database to come out
 as files. can we do this(sort of Zope to non zope convertion)
 
 4. Which file do i need to upload to the isp end from the programmer
 end ,to make the site  work. If we have to upload a single database it
 will take a lot of time. is there any incremental upload facility
 available. i have only ftp access with my ISP.
 
 5. i need to build a directory like site somewhat like yahoo!, is there
 any toolkit available for it in zope.
 
 Thanks  
 


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Re: [Zope] scared


I have reinstalled zope and zodb, and copied the data.fs across.  It was
about two days old.  All the changes that I had made were gone.  Luckily I
made a backup of my app yesterday by exporting it.

I must have a bad understanding of how this works.  I had imagined that
everytime I hit CHANGE, that the data.fs file would have been updated.

When the computer crashed where were all my current changes?  Is there a
temp file I might be able to recover, as I am still missing quite a few
hours work!

The lesson that I have learnt is to back up regularly by exporting.  Is this
the right conclusion?

Thanks,

 josh on


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Re: [Zope] scared

2000-06-20 Thread Evan Simpson


- Original Message -
From: josh on [EMAIL PROTECTED]
 I have reinstalled zope and zodb, and copied the data.fs across.  It was
 about two days old.  All the changes that I had made were gone.  Luckily I
 made a backup of my app yesterday by exporting it.

 I must have a bad understanding of how this works.  I had imagined that
 everytime I hit CHANGE, that the data.fs file would have been updated.

That is how it is supposed to work, yes.  If the data really isn't in your
Data.fs (as opposed to being there, but inaccessible somehow) then that's a
serious Zope bug.  This may sound stupid, but have you tried using a
different browser or aggressively clearing the cache on your current
browser?  Sometimes a browser has handed me a days-old folder contents view
from its cache, but refreshing fixes it.

 When the computer crashed where were all my current changes?  Is there a
 temp file I might be able to recover, as I am still missing quite a few
 hours work!

You should take another copy of your original Data.fs and run Tranalyzer on
it (http://www.zope.org/Members/tsarna/Tranalyzer) for clues as to what's
really in it.  If it shows no transactions more recent than the two-days old
ones, let us know.

 The lesson that I have learnt is to back up regularly by exporting.  Is
this
 the right conclusion?

Backups are never a bad idea.  You shouldn't have to export, though;
copying Data.fs, even while the system is running, should give you a good
backup.

Cheers,

Evan @ digicool  4-am


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[Zope] Re: LocalFS cross platform bug

2000-06-20 Thread Dan L. Pierson


Jonothan Farr writes:
  That's a good point. Although, your patch actually does the backslash
  replacement regardless of whether the drive specification is present.
  
  How about this:
  
  +drive,rest=os.path.splitdrive(path)
  +if drive:
  +path = string.replace(rest, '\\', '/')

I like this better than mine, thanks!

  This will only work if win32 paths are always specified as full paths by the
  browser. Do you know if this is the case?

It seems to be, but I've only done limited testing.


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[Zope] ProxyPass

2000-06-20 Thread RC Compaan


Is there anyway to get around the fact that the remote ip is the server's ip
if you use Apache's ProxyPass directive to pass requests on to Zope?

Roché



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[Zope] Re: LocalFS w/ annotation data

2000-06-20 Thread Dan L. Pierson


Jonothan Farr writes:
  That sounds like a mess. LocalDirectory objects are not persistent, they are
  created each time they are requested. So you'll have nowhere to put your
  PersistentMappings except in the top-level LocalFS object. Trying to make the
  LocalDirectories persistent would be painful. For one, it would be hard to keep
  in synch with the file system. You could store everything in a PM at the top and
  use paths relative to the base but that would make copy,rename,etc. also messy,
  like you said.

I was planning to put the only top level PersistentMapping in the
LocalFS object, all the others would be values in it.  Still, you're
right, it's not pretty.

  What about just storing your meta-data in files in the local file system? Then
  you wouldn't need to modify the LocalFS product at all. Just write a ZClass that
  can read/write you meta-data file format.

Might well be a better approach.  I'll think about it.  Unfortunately, 
it doesn't remove the need for automatically handling move, copy and
rename, since these files wouldn't be visible to the normal archive users.


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[Zope] DCOracle on AIX

2000-06-20 Thread Friedrich, Robin K


Hi guys,
I know this isn't Zope related but this list is the closest thing I know of.
We are attempting to get DCOracle 1.3.0 working on our IBM AIX 4.2 platform
talking to Oracle 8.1.5 and we are running into a problem. We can get things
to compile into the shared object extension fine but it abruptly fails when
we attempt a Connect() call. No exception, no core dump, just exits.
Questions: 
1) Is the code known to work on AIX/Oracle8 ?
2) If so can you give us some pointers or names of folks who have it
working?
3) If not can you provide some things to try to help us track down the root
cause?

TIAAny help would be appreciated.
Robin Friedrich
Flight Operations Reinvent
United Space Alliance

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Re: [Zope] scared

2000-06-20 Thread Jim Sanford


If I were running any remotely critical application on
WIN98 I would be scared too.

Because of legacy data issues we run Zope on NT
and that just makes me nervous.

Jim Sanford

- Original Message - 
From: josh on [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, June 20, 2000 5:38 AM
Subject: [Zope] scared


when things happen that I have no understanding of their cause I get a
little scared.

I started up zope this morning, it seemed to open normally.
(I am running zserver and zope on  a win98 machine)
However when I went to access the site through the web, the server would
shut down.

I have recently exported the app. that I was working on, which makes me
happy but I need to get it back up and working asap.  What information do I
need to get the bottom of this?
I don't know how to copy and paste from a dos window, so I will transcribe
what I can see, hopefully someone can tell me where I might look next! (I
have taken out all the directory structure from the filenames)

File "...\ZServer\medusa\asyncore.py", line 321, in handle_error
self.close()
File "..\ZServer\HTTPServer.py", line 356, in close p.more() #free up
resources held by producer
File "..\ZServer\Producers.py", line 108, in more getattr(self.logger,
self.method)(self.bytes)
File "..\ZServer\medusa\http_server.py", line 275, in log, _ _ [%s] "%s" %d
"%s" "%s"\n' % (  LOG STUFF )
...
IOError: [Errno 9] Bad file descriptor


Oh I feel rotten, way out of my depth!  I just want zope to work!!!
Not really sure where to start, will reinstalling the whole thing write over
my data?
I guess I have it backed up, but still...

thanks for ANY help!!

josh on




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Re: [Zope] Re: LocalFS w/ annotation data

2000-06-20 Thread Jim Sanford


I would suggest putting an extra text box on the upload
form for the filename in ZOPE. You could include javascript
to automatically fill in the text box whenever the ZOPE name
in the file box changed.

The javaScript code could use the C:\  or D:\
or whatever pattern at the beginning to determine that it
might be a windows file and strip off the path.  On the
unlikely occassions it "guesses" wrong the user could
change the name before uploading.


Jim Sanford

- Original Message - 
From: Dan L. Pierson [EMAIL PROTECTED]
To: Jonothan Farr [EMAIL PROTECTED]
Cc: Dan L. Pierson [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, June 20, 2000 7:51 AM
Subject: [Zope] Re: LocalFS w/ annotation data


Jonothan Farr writes:
  That sounds like a mess. LocalDirectory objects are not persistent, they are
  created each time they are requested. So you'll have nowhere to put your
  PersistentMappings except in the top-level LocalFS object. Trying to make the
  LocalDirectories persistent would be painful. For one, it would be hard to keep
  in synch with the file system. You could store everything in a PM at the top and
  use paths relative to the base but that would make copy,rename,etc. also messy,
  like you said.

I was planning to put the only top level PersistentMapping in the
LocalFS object, all the others would be values in it.  Still, you're
right, it's not pretty.

  What about just storing your meta-data in files in the local file system? Then
  you wouldn't need to modify the LocalFS product at all. Just write a ZClass that
  can read/write you meta-data file format.

Might well be a better approach.  I'll think about it.  Unfortunately, 
it doesn't remove the need for automatically handling move, copy and
rename, since these files wouldn't be visible to the normal archive users.


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[Zope] PoPy Licence

2000-06-20 Thread Eric Bianchi


Dear PoPy and zpopyda users,

there has been a lot of discussion lately concerning the GPL issue of PoPy on
zope mailing list, python mailing list and even in the Mixadlive itself.

We have been thinking a lot since there.

On one hand, we are very concerned about using and developing free software
available for the community, on the other hand, we want to provide the best product
for our user and give them the availability to enjoy popy as much as we do
without having licence issue, that's free software...

We have developed PoPy to work faster and cleaner and since we are using it,
our work get easier than ever.

That's why we have chosen to modify licences of PoPy and zpopyda and put them
under the LGPL licence. 

We hope you'll enjoy that

for comments and questions please use our mailing list :
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Regards

the PoPy team


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[Zope] Internationalization 2nd post

2000-06-20 Thread Dan Rusch


How are my fellow Zopers handling Internationalization, especially text.

We have a site that is composed of several hunderd pages. We don't use
classes but we have made heavy use of aquistion though. For example we
have one back button that is aquired thoughout the site etc etc.
Basically if the functionality (or code) is used in more than one place
it has been but into a method and aquired.

Any thoughts or hints?

thanks,


DR




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Re: [Zope] TAG for file date

2000-06-20 Thread CURTIS David


Greeting,

Thanks Tino for  your reply, but alas I am still not able to achieve what I want.  
Perhaps I do not understand what you are teaching.
I am trying to display the date of a document in an HTML document.  Here is what I 
tried.
Step 1.) CREATE A FILE OBJECT
I used the menu to create a file object.
ID=GuideFile
Content Type = Application/
Precondition = BLANK

Step 2.) ADD CODE TO HTML FILE
I tried to add dtml-var "GuideFile.bobobase_modification_time" 
But I do not get an output displayed!!!  I tried to make it a paragraph, bold etc, but 
no luck.  Although I do not get an error from Zope it does not work correctly.  I am 
using the latest version of Zope 2.1.6.

If you see where I failed, please let me know.  Thank you in advance for any 
information.  :-)
  


 [EMAIL PROTECTED] 06/20/00 02:52AM 


CURTIS David wrote:
 
 Greetings,
 
 I have a database file that gets copied via a cron job at night.  I would to display 
the new the new file date in an htlm document using Zope.  What I would like is a tag 
that displays the date of a specific file.  Is there such a dynamic tag?  I am 
thinking something like File-tagcopied-file/File-tag
 Any help would be apprechiated.
 
actually it is dtml-var "fileobject.bobobase_modification_time"
where fileobject is your actual object.

HTH
Tino Wildenhain

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  !
   
   
   
   
   
   
   
   
   
   
   
  !
   
   
   
  

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RE: [Zope] Embedding authentication in a Zope Website

2000-06-20 Thread Chris McDonough


 Chris,
 
 Thanks for the speedy reply. I appreciate it.
 
 The questions I have now is how do you:
 
  1) give users the opportunity to log in... where do you actually do
 authentication? is there a url they must point to? should I 
 be calling any
 python functions, or perhaps writing my own dtml methods to 
 aquire their
 credentials?

You protect an object using permissions and roles.  Once they hit an
object that requires authentication, they'll be prompted to log in.  For
example, you might want to create a role named 'Bleah' and assign a
bunch of users to that role.  Then protect a folder 'Foo' by assigning
the 'View' permission to the 'Bleah' role.  When users navigate to
'Foo', they'll be prompted for a login.  If they have the 'Bleah' role,
and they enter the proper username/password combo, they'll be permitted
access.  If they don't have the 'Bleah' role, or if they do not enter a
proper username/password combo, they'll be denied access.

You may also want to check out the new Zope 2.2 release that has
context-sensitive help for most of this stuff via the 'Help' button on
the page.

  2) how can you seperate your userlists for your web sites 
 from your user
 list for zope administration, especially considering you will probably
 want users to be able to access multiple trees equally?

You don't, a user with management privileges (e.g. the "Manager" role)
is just another user.. it's just that he/she has mangement privileges
while others may not.

 Any advice appreciated. In the meantime, I am looking through 
 as many FAQs
 and HowTos as I can find at the main site.

The help system is good here too.



  Knight,
  
  The primary way of obtaining the credentials of the 
 currently logged in
  user is through the AUTHENTICATED_USER attribute of the 
 REQUEST object,
  ala:
  
  dtml-unless "REQUEST.AUTHENTICATED_USER.getName() == 'Anonymous'
 Important stuff
  /dtml-unless
 Unimportant stuff.
  
  You probably don't want to hardcode too much of this stuff 
 into DTML,
  this is what permissions assigned to objects and roles 
 assigned to users
  are for.  Read the content manager's guide for more information on
  permissions and roles.
  
  The subject is a big one.  I'e never used MySQLuserfolder, 
 so I can't
  give you much info on that in particular.  I assume it operates much
  like the "basic" user folder that comes 'preinstalled' in 
 the Zope root
  folder, in which case you'll need to read up on AUTHENTICATED_USER. 
  Searching the Zope.org site for "AUTHENTICATED" should turn 
 up a bunch
  of hits (although AUTHENTICATED_USER will probably not because of
  limitations in our cataloging engine).  The How-tos that you'll find
  through this search are probably good for this sort of 
 thing as well.
  
  knight wrote:
   
   Greetings,
   
   Please bear with me, I'm still slightly new to Zope, but 
 I'm pretty up on
   the structure, miscellaneous administration, etc. I'm 
 also beginning to do
   well with Python development.
   
   I wanted to start adding authentication to my site via 
 HTML forms, and I
   saw mysqlUserFolder. There aren't any real docs that come 
 with it. More or
   less, a README that explains the feature set of the 
 Product is all that it
   has.
   
   Installing mysqlUserFolder wasn't the problem. The problem is now
   dynamically outputting content based upon login 
 information. How do I
   manipulate who is logged in? How do I check to see if a 
 user is logged in,
   etc? Do I need to read some plain zope authentication 
 docs? If so, please
   point me in the right direction.
   
   What do I embed in my DTML in order to check for authentication?
   
   I really appreciate the help... The Zope documentation is 
 still a little
   out of order, and slightly confusing to navigate.
   
   Knight
   
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RE: [Zope] Basic site management using zope and other queries

2000-06-20 Thread Chris McDonough


 
  1. Can zope do basic site management. for example missing 
 link checks. say
  if we call an object which doesnt exist. can zope show us 
 where we have
  gone wrong.(without actually checking each and every object manually)

No.

  2. I have large number of small html documents(17,000). I 
 want them to go
  in a database. can we automate this in zope to be uploaded it in the
  database.

Yep.  Search the mail archives for loadsite.py

  
  3. Say, i want to use a zope enable webiste on a non zope 
 enabld server,
  so i need all the objects(e.g. html files) from the database 
 to come out
  as files. can we do this(sort of Zope to non zope convertion)

If this is what you want, use Jonothan Farr's LocalFS product.
  
  4. Which file do i need to upload to the isp end from the programmer
  end ,to make the site  work. If we have to upload a single 
 database it
  will take a lot of time. is there any incremental upload facility
  available. i have only ftp access with my ISP.

I'm not sure what you mean.
  
  5. i need to build a directory like site somewhat like 
 yahoo!, is there
  any toolkit available for it in zope.


I'm not sure.  Check the Download section of Zope.org and click on
Products.

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Re: [Zope] comercial products using zope

2000-06-20 Thread Martijn Pieters


On Tue, Jun 20, 2000 at 07:00:40PM +1000, Terry Kerr wrote:
 Basically I want to know if anyone else has used zope for a commercial
 product b4, and how they did it.  Is there anything in particular that I
 should know about.  Should I just rely on a good software license to
 protect my code?  Also...are .pyc files as platform independent as .py
 files?

I personally know of one company that sells a commercial product that is
(almost) fully written in Python: GRiNS, by Oratrix (http://www.oratrix.com).
They protect their product with a license and a license key.

They do package the product as one binary, I believe there are some standard
tools for this, you could try and start searching on python.org. But I don't
think the compiled code has been obfuscated in any way or anything.

For your Product to work with Zope you will have to deliver your Product in a
format that the python interpreter can access, so that Zope can import your
module. .pyc files are such a format, and they are as cross-platform as .py
files.

-- 
Martijn Pieters
| Software Engineermailto:[EMAIL PROTECTED]
| Digital Creations  http://www.digicool.com/
| Creators of Zope   http://www.zope.org/
|   The Open Source Web Application Server
-

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[Zope] Change Notification

2000-06-20 Thread Bob Barter


Is there a way for an object to be notified that it has been modified?

In particular, I want to create Relation objects that relate two arbitrary
Folders.  Creating the Relation object with a ZClass is easy (even for a newbie
like me :-) ), but I need to update the relation links if the destination folder
is moved.

My thinking is that I need a parentChanged method that is invoked by a parent.
parentChanged would then recursively invoke parentChanged for each of its child
folders.  The purpose of parentChanged would be to look for any relation objects
that referenced the old location and either 1) change the reference to the new
location if the old location is no longer valid (i.e. a Cut/Paste operation), or
2) add the new location if the old location is still valid (i.e. a Copy/Paste
operation).

This sounds expensive, and I'm not sure how to kick off the process.  Does a
"Paste" create a new instance?

Thanks for the help,
Bob Barter


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[Zope] Pointers in zope ??? object1 -- object2

2000-06-20 Thread NABETH Thierry

Title: Pointers in zope ??? object1 -- object2

Hello,

I am trying to figure out how I can find a way to implement pointers in Zope.
In other words, I would like to be able that the content of an attribute reference another object.
object1 -- object2
and say for instance: object1.aaa := object2
and then get this object with object1.aaa

I have spent a lot of time, looking for instance how the name space work.

I had thought for instance that I would create a string field in which I would store
the id of the other object. But the problem, is that I do know how to get
the object from this id in the system, unless it belongs to the same namespace.

I had also thought that I could store in this field, the url of the object.
From this url, I would then be able to get the object.
(since you can call an kind of method by url-of-the-object/mymethod)
But it didn't work.
For instance
dtml-with url-of-the-object

/dtml-with
raise an error.

eventually, you can imagine that you can access an object specified in a absulute way
by using plenty of dtml-with.
for instance for accessing the /root/b/c/d/e object, we would use
dtml-with root
dtml-with b
dtml-with c
dtml-with d
dtml-with e
/dtml-with
/dtml-with
/dtml-with
/dtml-with
/dtml-with

But really this is too complicate, and really can not be implemented.

Do you know an answer to this question.
I can not believe that this is not possible, given the OO approach of zope, and the fact that it relies on python.

Thanks,

Thierry Nabeth
Research Fellow
INSEAD CALT (the Centre for Advanced Learning Technologies)
http://www.insead.fr/CALT/

Re: [Zope] Pointers in zope ??? object1 -- object2

2000-06-20 Thread R. David Murray


On Tue, 20 Jun 2000, NABETH Thierry wrote:
 I had also thought that I could store in this field, the url of the object.
 From this url, I would then be able to get the object.
 (since you can call an kind of method by  url-of-the-object/mymethod)
 But it didn't work.
 For instance
 dtml-with  url-of-the-object

 /dtml-with
 raise an error.

There's a method on REQUEST that takes an absolute URL and gives you
back the object.  Check the ZQR.

--RDM


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Re: [Zope] Internationalization 2nd post

2000-06-20 Thread R. David Murray


On Tue, 20 Jun 2000, Dan Rusch wrote:
 How are my fellow Zopers handling Internationalization, especially text.

Check out the list of mailing lists in the resources section of zope.org.
You'll find a mailing list for ZIP, the Zope Internationalization Project,
complete with archives.

--RDM


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[Zope] dtml-sendmail tag that worked in 2.1.6 appears broken in 2.1.7

2000-06-20 Thread Shaw, Mark


Hello,

I have a site that contains the following tag:

dtml-sendmail smtphost="localhost" mailto="zope"
mailfrom="[EMAIL PROTECTED]" subject="SITE.COM EMAIL"

...

/dtml-sendmail

This worked fine when my server was running Zope 2.1.6.  After upgrading to
2.1.7, I get the following error:

Error Type: TypeError
Error Value: unexpected keyword argument: localHost

I've made an attempt to revert to 2.1.6 to resolve this problem.  However, I
noticed that  I was unable to successfully pack the database after moving
all the data files from the  2.1.7 tree to the 2.1.6 tree.

Has anyone seen/resolved this problem?  Any help is greatly appreciated.

-Mark

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[Zope] Re: LocalFS cross platform bug

2000-06-20 Thread Jonothan Farr


   How about this:
   
   +drive,rest=os.path.splitdrive(path)
   +if drive:
   +path = string.replace(rest, '\\', '/')
 
 Oops, looks like this doesn't work after all.  The Linux version of
 splitdrive doesn't actually do the split :-(.

Doh! Looks like we'll need to roll our own splitdrive then.

--jfarr

"Perl is worse than Python because people wanted it worse."
Larry Wall, 14 Oct 1998



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[Zope] Re: LocalFS w/ annotation data

2000-06-20 Thread Jonothan Farr


   What about just storing your meta-data in files in the local file system?
Then
   you wouldn't need to modify the LocalFS product at all. Just write a ZClass
that
   can read/write you meta-data file format.

 Might well be a better approach.  I'll think about it.  Unfortunately,
 it doesn't remove the need for automatically handling move, copy and
 rename, since these files wouldn't be visible to the normal archive users.


Good point. Well, for my next trick I plan to add support for generic object
meta-data in the file system. If you need it right away I'd say go for it,
because I don't know when I'll get to it. I'd like it if you could let me know
what you come up with, though. That'll probably make things easier when I get
around to implementing a general solution, which will eliminate the maintenance
chore for you of keeping your branch synched up with mine.

--jfarr



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Re: [Zope] Internationalization 2nd post

2000-06-20 Thread Rik Hoekstra





How are my fellow Zopers handling Internationalization, especially text.

We have a site that is composed of several hunderd pages. We don't use
classes but we have made heavy use of aquistion though. For example we
have one back button that is aquired thoughout the site etc etc.
Basically if the functionality (or code) is used in more than one place
it has been but into a method and aquired.

Any thoughts or hints?


You could use a number of different 'language specific' folders and make
your site acquire from them. There is a caveat, however, because you have to
be careful to use acquisition in this way. There is a bit of information in
my Changing Contexts in Zope 2
http://www.zope.org/members/Hoekstra/ChangingContexts1

hth

Rik


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Re: [Zope] scared

2000-06-20 Thread Rik Hoekstra





I have reinstalled zope and zodb, and copied the data.fs across.  It was
about two days old.  All the changes that I had made were gone.  Luckily I
made a backup of my app yesterday by exporting it.

I must have a bad understanding of how this works.  I had imagined that
everytime I hit CHANGE, that the data.fs file would have been updated.


It should


When the computer crashed where were all my current changes?  Is there a
temp file I might be able to recover, as I am still missing quite a few
hours work!


THis never happened to me before, but it did yesterday (zope 2.1.4 on Win95)
! This seems like a bug.

As for your error: I have had to throw away a corrupted (read: one that
couldn't be opened) logfile before on NT. It made it possible to restart
Zope again. I have wondered what strange corruptions could happen to a
logfile, but apparently this may happen at times (especially if the logfile
is getting big)

hth

Rik


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[Zope] Creating a ZClass within a folder

2000-06-20 Thread Aaron Payne


Hi all,
I am trying to create a zclass instance within a newly added folder.

Here is the sequence of events
1. get name from a form, vendor
2. add a folder with id of vendor
3. within the new folder create a CouponProduct

The following add method (snipped) puts the zclass instance at the same 
level as the new folder and not inside of it.

Note:
merchants is a folder containing all of the vendor folders.
The add method is at the same level as the merchant folder.

dtml-with merchants
dtml-call "merchants.manage_addFolder(vendor,'',1)"

dtml-with "vendor"
   dtml-with "manage_addProduct['CouponProduct']"
 dtml-call "REQUEST.set('id',`ZopeTime().timeTime()`)"
 dtml-call "CouponProductZClass_add(_.None, _, noRedirect=1)"
   /dtml-with manage_addProduct--
/dtml-with vendor

/dtml-with merchants
Peacefully,
Aaron


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[Zope] Select Box Problem

2000-06-20 Thread Kenny Flegal


I have a form that pulls back previous order information from a customer. 
This form has a select box for with a list of customers in the database so 
that a user can easily select who made the order. Everything in this form 
works fine except for the select box. The select box shows the option at the 
top of the list everytime. This is not what I am looking for however, I need 
the select box to reflect what the customer that placed the order. I could 
easily do this with the select except for the fact that the select 
information is dynamically filled by a query. The following code is used.

select name="customerid"dtml-in custcompanysearchoption value=dtml-var 
customeriddtml-var firstname dtml-var lastname/dtml-in/select

The entire form is in a dtml-in that has a customerid value. I would like 
to have the current customer show up in this box. How would I tell the 
select box to select the current custoemer as default?

Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com


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[Zope] Does dtml-sendmail work with 2.1.7?

2000-06-20 Thread Shaw, Mark


Just thought I'd rephrase the question after doing more troubleshooting.
Does anyone have this tag working for them when using Zope  2.1.6???

Thanks again.
-Mark


 -Original Message-
From:   Shaw, Mark [mailto:[EMAIL PROTECTED]] 
Sent:   Tuesday, June 20, 2000 2:39 PM
To: [EMAIL PROTECTED]
Subject:[Zope] dtml-sendmail tag that worked in 2.1.6 appears broken
in 2.1.7

Hello,

I have a site that contains the following tag:

dtml-sendmail smtphost="localhost" mailto="zope"
mailfrom="[EMAIL PROTECTED]" subject="SITE.COM EMAIL"

...

/dtml-sendmail

This worked fine when my server was running Zope 2.1.6.  After upgrading to
2.1.7, I get the following error:

Error Type: TypeError
Error Value: unexpected keyword argument: localHost

I've made an attempt to revert to 2.1.6 to resolve this problem.  However, I
noticed that  I was unable to successfully pack the database after moving
all the data files from the  2.1.7 tree to the 2.1.6 tree.

Has anyone seen/resolved this problem?  Any help is greatly appreciated.

-Mark

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Re: [Zope] dtml-sendmail tag that worked in 2.1.6 appears broken in 2.1.7

2000-06-20 Thread Jim Sanford


The error is saying that Zope is seeing
localHost (CAPITAL H) where your snippet
of code reads localhost (small h). Does your
actual code have a typo?


Jim
- Original Message - 
From: Shaw, Mark [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, June 20, 2000 1:39 PM
Subject: [Zope] dtml-sendmail tag that worked in 2.1.6 appears broken in 2.1.7


Hello,

I have a site that contains the following tag:

dtml-sendmail smtphost="localhost" mailto="zope"
mailfrom="[EMAIL PROTECTED]" subject="SITE.COM EMAIL"

...

/dtml-sendmail

This worked fine when my server was running Zope 2.1.6.  After upgrading to
2.1.7, I get the following error:

Error Type: TypeError
Error Value: unexpected keyword argument: localHost

I've made an attempt to revert to 2.1.6 to resolve this problem.  However, I
noticed that  I was unable to successfully pack the database after moving
all the data files from the  2.1.7 tree to the 2.1.6 tree.

Has anyone seen/resolved this problem?  Any help is greatly appreciated.

-Mark

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Re: [Zope] How can I upload files to mySQL


  I am using Zope and mySQL and want to load up text and Images to text or =
  blob fields.
  
  How can I upload file content to TEXT (plain text)=20
  and BLOB (images: jpg, gif) using DTML?
I can answer only part of your question.

Uploaded files are "ZPublisher.FileUpload" objects which
you can find in the REQUEST object under the form field
name. They have a "read" method returning the content
as a string.

Placing the string into a text field should be straight forward
(same way you did it up to now).

I do not know, how MySQL wants to receive BLOB values, though.


Dieter

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Re: [Zope] Internationalization


Dan Rusch writes:
  We have a site that is composed of several hunderd pages. We don't use
  classes but we have made heavy use of aquistion though. For example we
  have one back button that is aquired thoughout the site etc etc.
  Basically if the functionality (or code) is used in more than one place
  it has been but into a method and aquired.
Aquisition should play well with internationalization.

You would put the localization into the aquired objects.

If the language information is e.g. in a cookie,
you could use its value to select the various language
variants of your object.
If the language information is in the URL, I probably would
extend the Zope folder class to a LangFolder.
It would behave exactly likes a normal folder, but would
add an "LANGUAGE" variable to the REQUEST object during
traversal.

To select the correct localization of an object,
you could have language folders for each language
containing the localizations for the respective language.
If we assume, that all the id's are unique, DTML
code similar to this can be used for selection:

dtml-with "_[LANGUAGE]"
  dtml-var "_[id]"
/dtml-with


Dieter

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Re: [Zope] TAG for file date


CURTIS David writes:
  I have a database file that gets copied via a cron job at night.  I would to display 
 the new the new file date in an htlm document using Zope.  What I would like is a tag 
 that displays the date of a specific file.  Is there such a dynamic tag?  I am 
 thinking something like File-tagcopied-file/File-tag
  Any help would be apprechiated.
You probably will need an external method -- at least, if you
speak about a file in the file system and not an object in
the ZODB.

The Python module "os" contains the function "stat" that allows you
to access the modification time. You may want to have a look
at the Python module "time" or the Zope module "DateTime.DateTime"
for ways to format the time you got with "stat".


Dieter

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Re: [Zope] brain hurts regarding dynamic fcn args in Python


Jeff Sasmor writes:
  Is there a (straightforward?) way to dynamically compose function
  argument lists?  For example, in C, you can write"
  
  f(arg1, arg2, (conditional expression)?(val for TRUE state):(val for FALSE state)).
Others have pointed out, that you can use
"and" and "or" to emulate "? ... : ...".
Be careful, there are dangers, because the emulation is not faithful.

  In my case here in Zope, sometimes I have to search a ZCatalog
  prior to displaying the results in a dtml-in looping construct.
  
  dtml-in
  
 "Catalog.searchResults(meta_type='EventDoc',event_date=[first,last],event_date_usage='range:min:max',sort_on='event_date
  ')"
  

  /dtml-in
  
  
  Now if the 'moderated' property is active I want to add the keyword arg
  
  reviewed='on'
  
  to the arg list at the time that the searchResults method is invoked.
In some cases, you could use:
   ...(..., reviewed= moderated and 'on', ...)
This will define "reviewed". It will have a Python "false" value
if moderated is "false", otherwise the value 'on'.

If your function uses code like:
"if kw.has_key('reviewed') and kw['reviewed': ..."
this will work. If the second and term is missing, if won't.


I do not know, what code ZCatalog uses. Try it out or
look into the source.


Dieter


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Re: [Zope] sifting through python sub-objects


ed colmar writes:
  I've succesfully gotten the catalog to work (thanks everyone!), but in
  doing so, I've created a problem.  Squishdot uses this code like this in
  order to add an item:
  
  id=self.createId()# make a datestamp id
  msg=PromoterPost(id,title) 
  msg=msg.__of__(self)  #  ???
  self.setItem(id,msg)  #  set the item
  
  This code is incompatible with the catalog.  As far as I can tell because
  The catalog likes to see id's as strings,
As far as I know the sources, ZCatalog expects its fields to
be either simple objects (strings, numbers, dates, ...) or
be callable with the result a simple object.
  but I don't think the object gets
  completely added to the zope fs either.
What does that mean?

  After changing the code that does
  the adding to the zope fs everything related to the catalog seems good.
  Here's the new code:
  
  ob=PromoterPost(id,title)
  ob.id = id
  ob.title = title
  
  self._setObject(id,ob)
  self.getCatalog().catalog_object(ob,id)
I would expect that "_setObject" stores the association
"id - ob" somewhere. I assume, a Python dictionary is
used for this purpose.

Squishdot probably uses a BTree instead, because is can
handle a big number of content objects more efficiently
than a Python dict.

  So here's the problem, the methods that squishdot uses to locate
  sub-objects relies on a BTree() type method, called "data", and is used by
  a few methods like this:
  
  def objectValues(self):
  """ return list of subobjects """
  return map(lambda x, p=self: x.__of__(p), self.data.map(self.ids))
   or 
  
  def is_local_user(self, thisuser):
  """ returns true with ID if user is a local user
  based on rev_id_list in squishdot
  """
  rlist = map(None,self.ids)
  rlist = filter(lambda x,p=self : p.data[x].validated, rlist)
  rlist = filter(lambda x,p=self : p.data[x].meta_type ==
  'SRPersonPost', rlist)
  rlist = filter(lambda x,p=self,s=thisuser : p.data[x].title == s,
  rlist)
  return rlist
  
   Neither return any results, becuase in the new code, the data object is
  not getting updated.  Do I need to keep a record of all the ids like
  squishdot does, or can I leave that up to zope?
Use the BTree, if you want to use major parts of Squishdot.

Otherwise, you must use methods from the same place you have
taken "_setObject" from. I am sure, the class will have
"objectValues" and "objectIds", too.
And I expect, there will be some form of "_getObject" (probably
named differently) to access the object corresponding to an "id".
Have a look at the Object Reference in the Zope documentation.


Dieter

  
   It seems like there should be an easier way than "self.data" to do this...  
  
   Any ideas?
  
  

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Re: [Zope] Basic site management using zope and other queries


Rajil Saraswat writes:
  On Tue, 20 Jun 2000, Rajil Saraswat wrote:
  i had sent this message. may be some of you had overlooked it,so here it
  is again. please answer to this, as it is very important for me to switch
  to zope.
You seem not to be patient ;-)

   1. Can zope do basic site management. for example missing link checks. say
   if we call an object which doesnt exist. can zope show us where we have
   gone wrong.(without actually checking each and every object manually)
There is a tool called "wget", which is not related to Zope.
It allows to recursively visit (and download) any WWW hierarchy.

Called with normal arguments, it will have problems with
Zope folders ("missing trailing / in the URL").
However, about a month ago, someone posted an argument
that should work with Zope.

I, myself, did not yet work with "wget" and cannot help
you more. Look into the archives.


   2. I have large number of small html documents(17,000). I want them to go
   in a database. can we automate this in zope to be uploaded it in the
   database.
I assume, you think of the Zope database ZODB.
If not, put it into the database by any means that the database
provides.

You can use the product "LoadSite" to put lots of files
into ZODB with a single call.


   3. Say, i want to use a zope enable webiste on a non zope enabld server,
   so i need all the objects(e.g. html files) from the database to come out
   as files. can we do this(sort of Zope to non zope convertion)
You want to look at "wget" (see above).
You will loose all dynamic features, such as e.g. database access
(now I speak about relational databases not the ZODB).


   4. Which file do i need to upload to the isp end from the programmer
   end ,to make the site  work. If we have to upload a single database it
   will take a lot of time. is there any incremental upload facility
   available. i have only ftp access with my ISP.
This question is not clear.

When you want to use Zope at the ISP, it must be installed there.

If it is installed there, you can use "LoadSite" or (maybe)
FTP (if ZServer with FTP is running) to load your
pages into Zope.


   5. i need to build a directory like site somewhat like yahoo!, is there
   any toolkit available for it in zope.
Have a look at "ZTopic".



Dieter

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Re: [Zope] Need to use a 'date' data type in sqltest


Jones, David H writes:
  I need to include a test of a date in a DTML variable referenced in a sqltest tag in 
 ZSQL.  From reading documentation and testing, it does not appear that the 'date' 
 data type is supported.
As fas as I know, SQL databases vary greatly in the representation
of times and dates.

If your database accepts string representations for date fields,
you could use an "dtml-var" (rather than "dtml-sqltest") with
an appropriate "fmt" argument.


Dieter

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Re: [Zope] TAG for file date