Re: [Zope] detect root.

[Bill Anderson]

Sin Hang Kin wrote:
> 
> Hello,
> 
> I ask about how to detect root in the list and Got three answer:
> 
> 
>   We're at the root folder
> 
>   You can go up from here
> 
> 
> 
> 
> Title is Zope
> 
> No title not zope
> 
> 
> 
> root folder have not identity
> 
> there is id
> 
> 
> However, all of them fail working in virtual web with siteroot set. How can
> I detect the root with or without siteroot?


perhasp you can be more specific as to what _exactly_ you need? What
do you intend to do with he information. that has a bearing on how you
get it, and what form the result is in.


Try this:

  You can go up from here :  

  We're at the root folder: 


This works because:
 o URL0 is the root folder 
 o URL1 is the page you are looking: at it always exists. 
 o URL2 only exists if you are in a subfolder or sub-container

If you are needing this to build a navigation system, this may or may
not work fo ryou. You can look at the breadcrumbs howto, or wait a day
or so untill a new one is posted by yours truly, using python.

If all you need is the URL of the root folder, you can use 
Like i said, what you need it for, and how you need it determines how
to get it.

HTH, Bill

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[Zope] detect root.

[Sin Hang Kin]

Hello,

I ask about how to detect root in the list and Got three answer:


  We're at the root folder

  You can go up from here





Title is Zope

No title not zope



root folder have not identity

there is id


However, all of them fail working in virtual web with siteroot set. How can
I detect the root with or without siteroot?


Rgs,

Kent Sin
-
kentsin.weblogs.com
kentsin.imeme.net


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Re: [Zope] FYI: Thank you

[alan runyan]

thank you, thank you, thank you.

tomorrow will be a day o' exploring :)

just out of curiosity - can a ZEO StorageServer now have multiple ZODB's?

~runyaga


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[Zope] Zope Pgsql 7.0/SQL Schema HeLp!

[Richard Smith]

This is going to be a long winded questions.

Ok I have been hacking around with Zope and Pgsql for awhile now.
I am trying to learn both at the same time, not any easy task, I don't
know SQL that well. I learn by doing ,and this is really fun, kinda like
a
digital puzzle of sorts. So any way I set up a database in pgsql to hold
contact information. This was no small task for me, like I said, I am
new to SQL.
I did discover a neat way to use CREATE VIEW foo AS SELECT that is not
in the book though. Anyway the PRIMARY KEY for the table of names is a
SERIAL type, all other tables such as phone numbers and addresses use
REFERENCES to this KEY. The database works quite well, I think I have it
normalize as much as need be (bare with me I am still learning). Now on
to Zope

I have Zope all set, and I can run all your standard SELECT, INSERT,
UPDATE stuff.
But I have one hitch,  I can't seem to figure out how to make it so an
end user
could add a name and email address without knowing about the PKEY
number. This is no problem for a DBA but I want to make it easy for
anyone to INSERT and UPDATE records. Did I make a bad design choice in
use unique numbers to glue all the tables together. Is this an interface
problem. Am I missing something. I need some help. Can someone point me
in the right direction please? 

Richard

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[Zope] Zope.org membership

[Graham Chiu]

Can it be changed so that it remembers both my userid and password, or
just my password?  I usually remember who I am!

-- 
Regards,  Graham Chiu
gchiucompkarori.co.nz
http://www.compkarori.co.nz/index.php
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Re: [Zope] SQLSession vs FSSession for ultra-high scalability and speed.

[Graham Chiu]

In article , J. Atwood
<[EMAIL PROTECTED]> writes
>As for the database, MySQL is hands down the fastest, but certainly not the most 
>robust in terms of features. Oracle is great if you have $10,000 and a full time 
>DBA but PostgreSQL 7.0 is really your best bet. You might also want to take the 
>money you were going to spend on the DB2 and put it right back into DB1 and 
>house everything there. Just get a beefy machine, RAID it up for redundancy and 
>call it a day.

It may be the way I designed my site, but if the database serving
SQLSessions had to be taken down for maintenance, my site became
inaccessible.

Based upon this experience, I would therefore now prefer to use
different database engines for the main database and for the session
tables.  And since for sessions, all you really want is speed without
any fancy SQL transactions, then MySQL for the session data seems an
appropriate use.

Session tables wouldn't have to be too big as you could run ZScheduler
to remove expired sessions.

-- 
Regards,  Graham Chiu
gchiucompkarori.co.nz
http://www.compkarori.co.nz/index.php
Powered by Interbase and Zope.

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[Zope] ZTopics and Zope2.2.0a1 don't mix

[Bill Anderson]

Just thought I would let people know that ZTopics 1.0 and the Zope
2.2.0 alpha (and the CVS version of Zope it appears) do not play nice
together.

As long as you use standard zope item properties, or non-ZClass
objects, it works fine. However, try to use any ZClass items and
'additional' properties, and it fails on an attribute error regardin
'Vocabulary'.

Process:
o Create catalog, call it 'Catalog'
o Give a DTML Document a property of 'TopicName', value of 'Testing'
o Add the property to the index and metadata tables in the catalog
o Add the DTML Document to the catalog (via find)
o Create A ZTopic give it a search for 'Testing' (with quotes!) in the
TopicName field
o Look at your ZTopic. it should appear fine.

o Now create a ZClass, inherit from 'ZCatalog: CatalogAware'
o Give it an index_html method to see something when you look at it
(optional)
o Give it a propertysheet, and a property 'TopicName'

o Create an instance of your ZClass, make sure it has 'Testing' as the
value for TopicName.
o Now look at your ZTopic. All will not be well; it will gripe about
the Vocabulary.
o Now change the query to meta_type, and for whatever your ZClass'
metatype is

Now look at your ZTopic folder, all should be well.

If anyone has a fix, I would appreciate it (and am sure Amos would
accept a patch, I am looking into that part of it myself, but have
gotten a bit turned around and may have to shelve it for the night :-(
).

Bill Anderson

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RE: [Zope] Calling External Method...

[Chris McDonough]

> 
> DTML Method that calls the External Method:
> 
> 
>
>  
>
> 

Geez, this is a pretty bad idea security-wise.  Your xCGI Python
function has a docstring and is therefore web-callable, so basically
you're letting anyone who can access your Zope instance run any program
on your server by passing it in as the cmdLine, e.g.
http://yourserver/ExecCGI?cmdLine=rm%20-rf%20*.  I know that's not your
problem right now, but you should reconsider this decision at some
point.

> /usr/local/Zope/lib/python/Products/ExternalMethod/ExternalMethod.py,
> line 248, in __call__
> (Object: ExecCGI)
> (Info: (('./websim',), {}, None))
>   File /usr/local/Zope/Extensions/ExecCGI.py, line 11, in xCGI
> TypeError: (see above)

I *think* this error message is telling you that it can't format the
status code as an integer in your raise statement.  Why don't you take
out your status checking code and see what happens.

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[Zope] Calling External Method...

[Eric L. Walstad]

I am trying to invoke a C++ program from an external method.  Platform is
Linux.  The C++ program returns HTML.  Note that the Python function is
working properly from the Python command line; That is,
ExecCGI.xCGI("./websim") outputs all the expected html.  I have placed the
C++ program in the same folder as the ExecCGI module.  The C++ program works
from apache:  here's an example of the program's output, which is what I'm
trying to get into Zope:

http://63.203.42.146/cgi-bin/websim


ExecCGI module:
import sys, os, string

def xCGI( cmdLine ):
"""
Run an external command and return its standard output as a string.
"""
f = os.popen( cmdLine )
lines = f.readlines()
status = f.close()
if status:
raise "CGI returned error: %d" % status[1]
return string.join( lines )


External Method that calls the C++ program:
Id ExecCGI
Title   Test
Function name  xCGI
Python module file (without suffix)  ExecCGI


DTML Method that calls the External Method:


   
 
   



Traceback:
Traceback (innermost last):
  File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 214, in
publish_module
  File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 179, in
publish
  File /usr/local/Zope/lib/python/Zope/__init__.py, line 202, in
zpublisher_exception_hook
(Object: ElementWithAttributes)
  File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 165, in
publish
  File /usr/local/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply
(Object: TestWS)
  File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 102, in
call_object
(Object: TestWS)
  File /usr/local/Zope/lib/python/OFS/DTMLMethod.py, line 150, in __call__
(Object: TestWS)
  File /usr/local/Zope/lib/python/DocumentTemplate/DT_String.py, line 502,
in __call__
(Object: TestWS)
  File /usr/local/Zope/lib/python/DocumentTemplate/DT_Let.py, line 145, in
render
(Object: cmdLine="'./websim'")
  File /usr/local/Zope/lib/python/DocumentTemplate/DT_Util.py, line 335, in
eval
(Object: ExecCGI(cmdLine))
(Info: ExecCGI)
  File , line 0, in ?
  File /usr/local/Zope/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 248, in __call__
(Object: ExecCGI)
(Info: (('./websim',), {}, None))
  File /usr/local/Zope/Extensions/ExecCGI.py, line 11, in xCGI
TypeError: (see above)


File Permissions in /usr/local/Zope/Extensions/:
-rwxr-xr-x   1 ewalstad users 318 May 20 17:31 ExecCGI.py
-rw-r--r--   1 ewalstad users 576 May 20 17:03 ExecCGI.pyc
-rwxr-xr-x   1 ewalstad users  336081 May 20 17:13 websim

Any help is GREATLY appreciated!

Thanks,

Eric.


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Re: [Zope] Apache mod_rewrite module...

[mindlace]

Pierre Rougier wrote:
> 
> Hi,
> 
> well... I do not know if this is the place to ask it, but...
> I use two servers... ZServer and apache
> 
> My URL references to Apache
> example:
> http://margo.pla.fr/intra/machin.html
> 
> and I want to use httpd.conf to transform it (only for html and htm
> files)
> in
> 
> http://margo.pla.fr/intra/?machin.html (which is my ZServer)
> 
> Does someone know the rewrite I sould use regular expression are a
> mistery for me

does "intra" represent that it should be represented by zserver? if so,

RewriteRule ^/intra/(.*)htm  /intra/?$1htm
RewriteRule ^/intra/(.*)html /intra/?$1html

should do the trick.

http://www.apache.org/docs-1.2/mod/mod_rewrite.html has more
information.

hope that helps,

~mindlace @ imeme & digicool

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Re: [Zope] SQLSession vs FSSession for ultra-high scalability andspeed.

[J. Atwood]

Hi Chas,

Let me give it a try (or just dump all of what I know).

First of all it looks like you are going to want ZEO. If you don't 
know ZEO, get to know ZEO, it fits perfectly with what you want for 
the frontline servers.

As for the SQLSessions. Since there is a lot of writing in 
SQLSessions I would suggest that you stick to the RDBMS model, Zope 
can handle it, but SQL can handle it better and if you are already 
planning on putting a DB behind the Zope installation it will really 
not take that much more (if anything) to add session information. You 
might, however, depending on time, want to invest  a little in 
playing around with your own SQL code to handle session data. There 
are factors like Zope's ability to cache that you will want to take 
full advantage of.

As for the database, MySQL is hands down the fastest, but certainly 
not the most robust in terms of features. Oracle is great if you have 
$10,000 and a full time DBA but PostgreSQL 7.0 is really your best 
bet. You might also want to take the money you were going to spend on 
the DB2 and put it right back into DB1 and house everything there. 
Just get a beefy machine, RAID it up for redundancy and call it a day.

Take a look at some of the benchmarks I ran for an idea of what you 
can do with a plain ole RH 6.1 box and PostgreSQL.

http://www.zope.org/Members/BwanaZulia/zope_benchmarks/benchmarks.html

The other idea that I have been playing around with in terms of 
redundancy is to build something into the Zope code for the ZSQL 
Methods that can go into a "cached" mode if your database dies. I 
have only begun to play with this, but in theory since, Zope can 
cache all your common data that comes from SQL you could, in effect, 
bring down the SQL database and have Zope continue to work with the 
cached data. I think all that it would involve (and I am sure that I 
am simplifying the hell out of this) is to have Zope know that the 
SQL database is no longer there (look for an error) and just turn the 
"Maximum time (seconds) to cache results" to unlimited until the 
database was restored.

Has anyone else thought about this or played with this idea?

Ok.. that is enough...

Cheers,
J



>Sorry if this has been asked before, but can anybody
>advise on FSSession vs SQLSession for:
>
>a) Speed.
>b) Scalability.
>
>Planned architecture employs multiple Zope/Apache
>frontline servers:
>
>+-+
>| Z/A |---+
>+-+   |
>   |
>+-+   |   
>| Z/A |---+  +- DB1
>+-+   |  |
>   |--|
>+-+   |  |
>| Z/A |---+  +- DB2 (optional)
>+-+   |
>   |
>   |
>   Etc, etc.
>
>Z/A = 'front line' webservers running Zope/Apache.
>   Contains application/business logic.
>   We are NOT using the ZODB for data storage.
>
>DB1 = Data storage. eg. Oracle/Postgres
>
>DB2 = potentially just for managing the sessions, if
>   we use SQLSession. Would MySQL be best ?
>
>
>Just how scalable can it really get ? We need it to at least
>be able to scale to 12 million sessions per day (and substant-
>-ially more writes to DB1 per day), even if we will be starting
>out much more modestly than that.  Realistically, should I be
>looking at something like ATG Dynamo instead ? 
>
>Thank you very much,
>
>chas
>
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Re: [Zope] FYI: Latest gem appears in CVS

[Bill Anderson]

Paul Everitt wrote:
> 
> Howdy folks.  As mentioned previously, a gem is ready to appear in CVS:
> mountable databases.


Am I correct in thinking this are ready to appear, but not _in_ CVS
yet?
I've been looking for the last 15 minutes with no luck, though the
history tab is certainly there! :-)

Bill

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[Zope] FYI: Latest gem appears in CVS

[Jerry Spicklemire]

Paul Everitt wrote:
> Howdy folks.  As mentioned previously, a gem is ready to appear in CVS:
> mountable databases.
 snip
>If you want to send thanks, send them to Jim Fulton and Shane Hathaway.

>From the way this sounds, I need to go update the "DevTestProd" page in the
"HighAvailabilityZope" ZWikki, because DC has just answered about 95% of
the questions posted there!

I think it was John Cleese (as Robin Hood) in Time Bandits, who said it
best (upon receiving a bountiful treasure in contribution to the cause)
when he stated,
"Thank you very, very, very, very, very, very, very, very, very, very,
very, very, very, very, very, very, very, very, very, very, very, very,
very, very, very, very, very, very, very, very, very, very, very, very,
very, very, very, very, very, very, very, very, very, very, very, very,
very, very, very, very, very, very, very, very, very, very, very, very,
very, very, much."

Can't wait to try it,
Jerry S.





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[Zope] SQLSession vs FSSession for ultra-high scalability and speed.

[chas]

Hi Folks,

Sorry if this has been asked before, but can anybody 
advise on FSSession vs SQLSession for:

a) Speed.
b) Scalability.

Planned architecture employs multiple Zope/Apache 
frontline servers:

+-+
| Z/A |---+
+-+   |
  |
+-+   |
| Z/A |---+  +- DB1 
+-+   |  |
  |--|
+-+   |  |
| Z/A |---+  +- DB2 (optional)
+-+   |
  |
  |
  Etc, etc.

Z/A = 'front line' webservers running Zope/Apache.
  Contains application/business logic. 
  We are NOT using the ZODB for data storage.

DB1 = Data storage. eg. Oracle/Postgres

DB2 = potentially just for managing the sessions, if
  we use SQLSession. Would MySQL be best ?


Just how scalable can it really get ? We need it to at least
be able to scale to 12 million sessions per day (and substant-
-ially more writes to DB1 per day), even if we will be starting
out much more modestly than that.  Realistically, should I be 
looking at something like ATG Dynamo instead ?  

Thank you very much,

chas 

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[Zope] RE: Generate edito form from dtmlDocument : property type

[Dr. Ross Lazarus]

I think the general idea of automating html generation for data entry
web forms is a very
good one, but IMHO it's heroic to even think about doing this sort of
stuff in dtml!! (This
discussion probably should be moved to zope-dev?)

I've got something which generates useful DTML and ZSQL code
automagically from ZClass BASIC propertysheet contents and so can be
used to do the grunt work for making zclass add and edit methods. It
generates ZSQL code which is only tested for the sybaseda but would be
relatively easy to tweak for other DA's

It uses a single python external method - have a look at
http://www.zope.org/Members/rossl/ZClassExtender for an example of
what's possible...feel free to extend it?!!

Sin Hang Kin wrote:

> I have the method form_dtmlDocument which generate the data entry form from
> an existing dtmldocument, How can I determine the type of the properties?
> Moreover, if the property is expected as list, how can I convert it into
> multiple input tag?


-- 

Dr Ross Lazarus
Associate Professor and Sub-Dean for Information Technology
Faculty of Medicine, Room 126A, A27, University of Sydney,
Camperdown, NSW 2006, Australia
Tel: (+61 2) 93514429   Mobile: +61414872482  
Fax: (+61 2) 93516646   Email: [EMAIL PROTECTED]

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Re: [Zope] FYI: Latest gem appears in CVS

[Jimmie Houchin]

>From someone who has lobbied for this feature and greatly looks forward
to using it...

Woohoo!!!

Thanks Jim.

Thanks Shane.

This is greatly appreciated.

Jimmie Houchin


> Paul Everitt [EMAIL PROTECTED] on
> Sat, 20 May 2000 18:40:30 -0400 wrote:
> 
> Howdy folks.  As mentioned previously, a gem is ready to appear in CVS:
> mountable databases.
> 
> What are these?  I'll answer with a question.  Ever want to have your
> data segregated into multiple Data.fs files?  Ever want to have some of
> your object data in the regular FileStorage, some in a Berkeley storage
> for no undo, some in some mythical forthcoming RelationalStorage, etc.? 
> Or perhaps you want to segregate your data for other reasons.
> 
> This is mountable databases, and it's running on Zope.org right now. 
> We're doing it to have Wikis that don't get pack, to let us see
> historical information.  If you want to send thanks, send them to Jim
> Fulton and Shane Hathaway.
> 
> But how would we see the historical information, since Zope doesn't do
> CVS-like things?  Those of you on zope-checkins might have seen this
> today:
> 
> """
> Message: 4
> Date: Sat, 20 May 2000 12:07:08 -0400
> From: Jim Fulton <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: [Zope-Checkins] CVS: Zope2  - History.py:1.1 history.dtml:1.1
> historyCompare.dtml:1.1 ndiff.py:1.1 DTMLMethod.py:1.45
> 
> Update of /cvs-repository/Zope2/lib/python/OFS
> In directory
> korak.digicool.com:/projects/users/jim/Historical/lib/python/OFS
> 
> Modified Files:
> DTMLMethod.py 
> Added Files:
> History.py history.dtml historyCompare.dtml ndiff.py 
> Log Message:
> Added the ability to browse, compare, and revert to historical revisions
> for DTML methods and documents
> """
> 
> Sure enough, I updated my CVS and saw a "History" tab.  Fun stuff, and
> something that's been a long, long time request from the community.  Jim
> did this in his spare time, so he gets 100% of the credit.
> 
> --Paul

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Re: [Zope] FYI: Latest gem appears in CVS

[Bill Anderson]

Paul Everitt wrote:
> 
> Howdy folks.  As mentioned previously, a gem is ready to appear in CVS:
> mountable databases.


...and there was much rejoicing.

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[Zope] FYI: Documentation

[Paul Everitt]

One other thing I'd like to point out.  Have any of you looking at the
latest-greatest Zope poked around in the help system?  One thing you
might note is the excellent API documentation Michel Pelletier has been
doing, hooked up to Amos' help system.

Browseable, searchable API documentation.  Thanks Michel!

--Paul

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[Zope] FYI: Latest gem appears in CVS

[Paul Everitt]

Howdy folks.  As mentioned previously, a gem is ready to appear in CVS:
mountable databases.

What are these?  I'll answer with a question.  Ever want to have your
data segregated into multiple Data.fs files?  Ever want to have some of
your object data in the regular FileStorage, some in a Berkeley storage
for no undo, some in some mythical forthcoming RelationalStorage, etc.? 
Or perhaps you want to segregate your data for other reasons.

This is mountable databases, and it's running on Zope.org right now. 
We're doing it to have Wikis that don't get pack, to let us see
historical information.  If you want to send thanks, send them to Jim
Fulton and Shane Hathaway.

But how would we see the historical information, since Zope doesn't do
CVS-like things?  Those of you on zope-checkins might have seen this
today:

"""
Message: 4
Date: Sat, 20 May 2000 12:07:08 -0400
From: Jim Fulton <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: [Zope-Checkins] CVS: Zope2  - History.py:1.1 history.dtml:1.1
historyCompare.dtml:1.1 ndiff.py:1.1 DTMLMethod.py:1.45

Update of /cvs-repository/Zope2/lib/python/OFS
In directory
korak.digicool.com:/projects/users/jim/Historical/lib/python/OFS

Modified Files:
DTMLMethod.py 
Added Files:
History.py history.dtml historyCompare.dtml ndiff.py 
Log Message:
Added the ability to browse, compare, and revert to historical revisions
for DTML methods and documents
"""

Sure enough, I updated my CVS and saw a "History" tab.  Fun stuff, and
something that's been a long, long time request from the community.  Jim
did this in his spare time, so he gets 100% of the credit.

--Paul

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[Zope] Memory creep

[John Hile]

We have been having 
the problem with memory usage creeping slowly upward that I've seen reported by 
several others in this list. I read several of the threads on this topic in the 
archives but, though there were a lot of theories floated, no firm conclusions 
seemed to be drawn. Like the others, memory usage as reported by 'free' on the 
'-/+ buffers/cache' line creeps steadily upward until the site crashes. 
Restarting Zope frees most of the memory.
 
We're running RedHat 
Linux 6.1, on a dual- 550M processor box with 256Mb of memory, Zope 2.1.4 using 
Apache, mod-ssl and PCGI, ZMySqlDA 1.1.3. The ZODB holds only non-dynamic data, 
all user data is kept in the MySQL data base.
 
I tried testing on 
our development server while no one else was accessing the site with the 'free' 
utility displaying memory use every 5 seconds in an attempt to find out what 
activity caused memory usage to creep upward without coming back 
down.
 
To cut to the chase, 
I seem to have narrowed it down to access to the MySQL database from multiple 
threads. As it happens, we have a very thin client piece that can access the 
server through http outside the browser. Most use of the site is through a 
browser, but this small client checks with the server occasionally for scheduled 
tasks when the browser isn't up. In some cases, access through the browser will 
use a plug-in to trigger the client to check immediately rather than waiting for 
its infrequent poll interval. 
 
After an afternoon 
of testing, I discovered that, with no one else accessing the site, I could 
access pages as fast as I was able through  the browser only (no client) or 
from the client only (sped up to poll every few seconds) with no memory creep. 
But when both were running at once (as they normally do), the memory usage would 
slowly creep up. 
 
Other 
details:
 
Letting the client 
poll and query the MySQL database frequently while using the browser to access 
only pages that did NOT access the DB resulted in no creep.
 
Having two people 
simultaneously access pages that DID access the database without the client 
running on either machine DID cause memory creep.
 
Having two people 
access pages that did NOT access the database without the client running did NOT 
cause memory creep.
 
Looks to me like 
there is a memory leak when ZMySQLDA is accessed from multiple 
threads.
 
Anyone have any 
ideas on where I could go to pin this down 
further?

[Zope] yet another LOCAL FS question

[Tom Scheidt]

I want to use this:





but have the images placed into a folder in Apache. Can I send them
directly? I have a local fs in the same folder as the above doc, should i
send the images there, will the really end up in Apache?


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[Zope] Refresh adds objects to Add list again

[Kevin Dangoor]

Hi,

I'm working with a very simple Product. Whenever I Refresh it, it shows
up an additional time in the Add list. Is this expected behavior? I don't
think I'm doing anything odd at all in the __init__.py or in the product
itself. The __init__.py consists of basically just a single
context.registerClass...

Kevin
http://www.byproducts.com - Humor and Novelties


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Re: [Zope] Using ReportLab with Zope

[Robin Becker]

In article <01bfc278$7c017e80$[EMAIL PROTECTED]>,
Richard Folwell <[EMAIL PROTECTED]> writes

On the reportlab site we have several pages which can be viewed as PDF.
The PDF & HTML versions are generated in parallel from a common source
by a python script.

I guess you can get a pythonmethod to run over your existing documents
and produce PDF versions provided you can parse the DTML or some major
subset of it. You would also need to add the generated PDF document into
the ZODB database and modify the DTML to contain a reference to the
generated PDF.

ReportLab doesn't use Zope , but I have some experience with it.

>To sound out what, if anything, other people are doing in this area:
>
>I am interested in using ReportLab with Zope, to provide an improved printed 
>version of
>web-published documents.  What I want to do is fairly straightforward, to create 
>a PDF file with:
>
> - a title/cover page with control information
> - a table of contents
> - the body of the document, with a technical document style header and footer 
>(title, docref,
>revision, date, page x of numpages, etc)
>
>Indexing would be nice, but that involves much more complexity and is outside 
>the scope of what I
>need right now.
>
>Currently I have documents published from Zope, sourced either as HTML (DTML 
>documents) or XML, with
>the intention to also produce documents whose content will come mostly from a 
>database (clearly
>straightforward in Zope).
>
>I think what I need to do is find some way of re-directing the output from Zope 
>(what would normally
>go to the browser) to an external program, which uses ReportLab to generate the 
>PDF file from the
>HTML stream, and returns the location of the file to Zope to pass to the browser 
>as a re-direct (so
>the browser gives the user the option to view or download the PDF file).
>
>Is this correct?  Is anyone already working in this direction?  Any hints or 
>tips?
>
>Richard
>
>
>
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-- 
Robin Becker

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[Zope] Using ReportLab with Zope

[Richard Folwell]

To sound out what, if anything, other people are doing in this area:

I am interested in using ReportLab with Zope, to provide an improved printed version of
web-published documents.  What I want to do is fairly straightforward, to create a PDF 
file with:

 - a title/cover page with control information
 - a table of contents
 - the body of the document, with a technical document style header and footer (title, 
docref,
revision, date, page x of numpages, etc)

Indexing would be nice, but that involves much more complexity and is outside the 
scope of what I
need right now.

Currently I have documents published from Zope, sourced either as HTML (DTML 
documents) or XML, with
the intention to also produce documents whose content will come mostly from a database 
(clearly
straightforward in Zope).

I think what I need to do is find some way of re-directing the output from Zope (what 
would normally
go to the browser) to an external program, which uses ReportLab to generate the PDF 
file from the
HTML stream, and returns the location of the file to Zope to pass to the browser as a 
re-direct (so
the browser gives the user the option to view or download the PDF file).

Is this correct?  Is anyone already working in this direction?  Any hints or tips?

Richard



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Re: [Zope] Fw: ZTopics and Canned Queries

[Michael Bernstein]

Shalabh Chaturvedi wrote:

> What I want to do is create: (creator : creatorName)
> And use http://url/FilterCreator?creatorName=shalabh
>
> Currently ZTopic does not allow me to create an object like above as it tries
> to evaluate the query at creation time.
> 
> I have modified my local copy of ZTopics to do what I need. Now I have an extra
> checkbox that allows creation of 'parameterized' ZTopics. When it is checked,
> caching is turned off and REQUEST is also looked up during construction of the
> query at run time.
> 
> Does anyone else find this useful? I know this product is unsupported but is it
> possible (or worth it) to submit this as a patch?
> Are there other products that might achive the same (any kind of 'search
> objects' or 'canned queries')?

This sounds interesting. How would this end up being
different from doing a ZCatalog search, though?

In any case, You probably want to submit a patch to Amos
Latteier ([EMAIL PROTECTED]).

HTH,

Michael Bernstein.

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Re: [Zope] detect root folder

[Morten W. Petersen]

> Just don't give any other folders the title of 'Zope' 

Hmm, this is better(tm):


The root folder has no identity!!">

sweet">


You could always do a "id == '' and title == 'Zope'", but I don't think
that's necessary.

-Morten (0.01$) =)


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Re: [Zope] detect root folder

[Andrew Kenneth Milton]

+[ Morten W. Petersen ]-
| > 
| >   We're at the root folder
| > 
| >   You can go up from here
| > 
| > 
| 
| I think the root folder has the title Zope too, so:
| 
| 
|   
| 
|   
| 

Just don't give any other folders the title of 'Zope' 

-- 
Totally Holistic Enterprises Internet|  P:+61 7 3870 0066   | Andrew Milton
The Internet (Aust) Pty Ltd  |  F:+61 7 3870 4477   | 
ACN: 082 081 472 |  M:+61 416 022 411   | Carpe Daemon
PO Box 837 Indooroopilly QLD 4068|[EMAIL PROTECTED]| 

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Re: [Zope] detect root folder

[Morten W. Petersen]

> 
>   We're at the root folder
> 
>   You can go up from here
> 
> 

I think the root folder has the title Zope too, so:







-Morten (0.01$)


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Re: [Zope] How to use WebDAV?

[Tino Wildenhain]

Hi Richard,

Richard Folwell wrote:
> 
> I am trying to use WebDAV (so far under Win98).
> 
> IE5/File/Open(check "Open as Web Folder") - "http://localhost:8080"
> 
> So far so good.  IE5 opens a folder with the Zope files and folders visible, and I 
>can navigate
> through the folders.  However it is not clear how to work with files.  
>Right-clicking on a file
> gives potentially useful options to Open or Send To.  Open simply renders the file 
>as if served
> normally through Zope, Send To does nothing - I tried sending to a plain text editor 
>(PFE), my
> favorite HTML editor (CoffeeCup) and NotePad.  Nothing happens.
> 
> What am I doing wrong?
You are exploring the "wonderful world" of windows ;-)
IE5 WebDAV is buggy and (like the ftp-mode) unintelligent implemented.
(who wonders...)
So you cant do the obvious things as to send files to the appropriate
tools,
you cant use sessions (because IE wont send cookies when using "open as
webfolder"
You may probably notice a major slowdown on the whole system, if your
"open as
webfolder" is the first action with authorisation on the site with IE.
So you have to always "log in" before open as webfolder.

But you can drag and drop files into the open folder. At least this
works :-)
This is helpful for putting downloadable file, images into a zope
folder.

Regards
Tino Wildenhain

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Re: [Zope] detect root folder

[Steve Alexander]

Sin Hang Kin wrote:
> 
> Hi,
> 
> Is it possible to detect the top folder in dtml?
> 
> I means I would like to prevent squishdot to show the ../ when it is already
> in the top level.


  We're at the root folder

  You can go up from here



--
Steve Alexander
Software Engineer
Cat-Box limited

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Re: [Zope] SiteAccess smashes 'REQUEST.resolve_url(...)' in DTML ?

[Oleg Broytmann]

Hi!

On Fri, 19 May 2000, Evan Simpson wrote:
> From: Martin Grönemeyer <[EMAIL PROTECTED]>
> > Error Type: ValueError
> > Error Value: Different namespace.
> 
> REQUEST.resolve_url requires that the URL you pass to it begins with
> REQUEST.script

   Oops! Can you tell more details on this? What is REQUEST.script?
   I'm asking this becasue my mod_pcgi2 Apache module screws SCRIPT
environment variable, and screws it by purpose!

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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[Zope] detect root folder

[Sin Hang Kin]

Hi,

Is it possible to detect the top folder in dtml?

I means I would like to prevent squishdot to show the ../ when it is already
in the top level.


Rgs,

Kent Sin
-
kentsin.weblogs.com
kentsin.imeme.net


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Re: [Zope] I _still_ need help on ZClasses and manage_clone

[Marco Mariani]

On Wed, May 17, 2000 at 12:16:15PM -0700, Erik Stephens wrote:

> I think a lot of people, myself included, have had problems trying to
> clone objects inside of new ZClass instances.

Thank you. I just need to add a page after creation of the instance,
but before the addition of the objects.


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Re: [Zope] I _still_ need help on ZClasses and manage_clone

[Marco Mariani]

On Tue, May 16, 2000 at 06:36:19PM +0200, Heiko Stoermer wrote:

> still I don't see why you would use an external method for the functions
> below.

Because I need the imaging library, and I happen to like python.

> When I started zoping, I did far too much  in external methods because I
> didn't know that DTML does it too.

I also didn't find a decent edit-through-ftp solution for DTML (no I
ain't gonna learn emacs, no way), though the zopeshell script brings
me halfway there.

> Maybe this helps, because I think you have a structural problem in your
> product.

I was an undocumented feature, that could be mentioned on the ZQR.


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[Zope] How to use WebDAV?

[Richard Folwell]

I am trying to use WebDAV (so far under Win98).

IE5/File/Open(check "Open as Web Folder") - "http://localhost:8080"

So far so good.  IE5 opens a folder with the Zope files and folders visible, and I can 
navigate
through the folders.  However it is not clear how to work with files.  Right-clicking 
on a file
gives potentially useful options to Open or Send To.  Open simply renders the file as 
if served
normally through Zope, Send To does nothing - I tried sending to a plain text editor 
(PFE), my
favorite HTML editor (CoffeeCup) and NotePad.  Nothing happens.

What am I doing wrong?

Thanks,

Richard


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Re: [Zope] Zope/Apache Image Catalog

[Steve Alexander]

Tom Scheidt wrote:
> 
> Hi
> 
> I want to be able to upload images into a folder on Apache using
> a form page in Zope, and at the same time have the ids cataloged
> with keywords into a ZCatalog. Basically, to be able to search on
> keywords and have the related images displayed on a page.
> 
> Does anyone have any recommendations, or know of any
> examples of this? Thanks in advance.

What follows is a terse answer explaining how I'd go about it, but
giving no information about how to accomplish each of the steps. sorry I
can't offer any more right now. Hope it helps.



Create a ZClass that represents the metadata of your image objects --
that is,

  Path to the image on Apache
  Keywords

Each time someone enters an image, save the image via LocalFS to a
filesystem folder accessible from Apache, and create an instance of your
metadata ZClass.

Your metadata ZClass should derive fom CatalogAware.

--
Steve Alexander
Software Engineer
Cat-Box limited

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[Zope] Generate edito form from dtmlDocument : property type

[Sin Hang Kin]

Hello,

I have the method form_dtmlDocument which generate the data entry form from
an existing dtmldocument, How can I determine the type of the properties?
Moreover, if the property is expected as list, how can I convert it into
multiple input tag?

CODE : form_dtmlDocument


 


: 
   "
value="" size="50">
   











Rgs,

Kent Sin
-
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kentsin.imeme.net


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[Zope] : generic adddtmlDocument method need to find extra form data type

[Sin Hang Kin]

Hello,

I have make the method for adding a dtml-document to the current folder with
additional data as properties, However, I can not determine the type of the
data, the type information I put in the form :date is removed by zope.
(also, zope display an ugly debug screen if the data type is wrong), HOW can
I get control of the data type?


the code is below, I have manually make all data to string.

CODE : add_dtmlDocument


This method add a dtml-document to the current folder or to what folder
point to
If no id is found in REQUEST one is generated,
the title, data is set to the title and data of the DTML document.
all other data from the form including those hidden data, is set as
properties of the dtmldocument



  



  

  
  
  
  
  
  



Rgs,

Kent Sin
-
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kentsin.imeme.net


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[Zope] Zclass unaware of refreshable base class?

[Tom Schwaller]

I derived a small ZClass ("ZTest") from the Python class
"Renderable" (made it refreshable) and made
some minor modifications to "Renderable".
After that I reloaded "Renderable", but the derived 
Class "ZTest" which uses a method from "Renderable" 
did not see the change and still used the old Version
of "Renderable".

Is there a way to fix that?


-- 

Tom Schwaller
http://www.linux-magazin.de/
http://www.linux-community.de

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