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RE: TransparentFolder (was: Re: [Zope] Help! I need an old Debia n package.)
by sean.upton＠uniontrib.com 10 Dec '02

10 Dec '02

TFs are evil. They are the wrong solution to a real problem. A better solution for clutter is the CMF skins tool. Even if you only use the CMF to get the skins tool and put a non-CMF zope application within a portal folder, this is much better than using TFs. In Zope 2.3, TFs will break sessioning with CoreSessionTracking becuase of an id collision for browser id managers. I assume this is also true of more modern Zope versions. The skins tool will do for most people what they intended to do with TFs, but in a less surprising, and well-documented way (plus you get configurable layering, and concurrent software upgrade migration paths by developing TTW code in another skin than your production application deployment). Sean -----Original Message----- From: Kyler Laird [mailto:Kyler@Lairds.com] Sent: Tuesday, December 03, 2002 4:50 PM To: Jo Meder Cc: zope(a)zope.org Subject: Re: TransparentFolder (was: Re: [Zope] Help! I need an old Debian package.) On Wed, Dec 04, 2002 at 01:09:43AM +0100, Jo Meder wrote: > I'd second TransparentFolder as a feature request for Zope. They are > really useful to structure storage without complicating URLs if you know > what you're doing. Of course you have to be careful wrt duplicate ids. As I recall, they cause horrible (processing) inefficiencies, so they are not likely to be adopted in the base product. The human efficiencies they bring (to us) are substantial. I've been assuming that I'm the only one using TFs, so it's nice to know someone else does. More people to share the load if we ever need to modify the product to handle a change in Zope! Now for my TF usage... It's become *very* common for me to create a Folder such as "proposals" and fill it with other Folders that represent proposals. Then I want tools that act on the proposals (like "PDF_compilation"). It's sooo clean for me to be able to drop a TF named "tools" into "proposals" and then simply call it like this. http://.../blah/proposals/2002001/PDF_compilation I do this all the time. It would be hard for me to go back to a non-TF world. --kyler _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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type(sql_search())?
by Terry Hancock 10 Dec '02

10 Dec '02

Can anybody tell me what this mysterious "results object" thing actually is? I'm working from within a Zope product, and defining an SQL() method (same as "ZSQLMethod" created within the ZMI). I then call the method and get a "list of results". Okay, that's a list, but what are its elements? Aren't they "class instances"? Why don't they have a __dict__? What *is* this beast, and why isn't it something simple? I was actually trying to forgo the ridiculously cumbersome path of defining a "pluggable brain" with module and class name and passing it to the "advanced management" interface of my ZSQLMethod -- i.e. pretending I'm doing everything through the web. It seems like that really ought not to be necessary in product code. You ought to be able to just slap the wrapper on right in the code, without setting up all that boilerplate, e.g.: class my_wrapper: def __init__(self, sqlres): self.__dict__.update(sqlres.__dict__) my_form = DTMLFile('www/my_form', globals()) def some_method(self, foo): return self.sql_stuff + foo wrapped_results = [my_wrapper(r) for r in sql_search()] However, that "sqlres.__dict__" chokes, because, mysteriously, sqlres doesn't have one. I've had a look at RDB.py, and it sure looks like it ought to have __dict__, but experimentation says no. I thought I'd just run type() on it, and see what Python thinks it is, but that brings up another pet peeve about Zope: Why doesn't type() work correctly in Zope? Or rather, why doesn't it have a repr()? Running debugging code like: raise ValueError("My type is %s!" % repr(type(buggy_object))) returns a Zope traceback page which says: Error Type: ValueError Error Value: My type is! >From the Python command line, of course, this will tell me what the type of the object is, such as: >>> raise ValueError("%s" % type(a)) Traceback (most recent call last): File "<stdin>", line 1, in ? ValueError: <type 'class'> but not in Zope. Any help would be much appreciated! Terry -- Terry Hancock ( hancock at anansispaceworks.com ) Anansi Spaceworks http://www.anansispaceworks.com "Python takes the pain out of programming ... ... and Zope puts it back again."

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Best practices to write business apps?
by Frederic Faure 09 Dec '02

09 Dec '02

Hi, I'm back to playing with Zope, except this time I need it as a tool to rewrite business apps (payroll, in this case.) I've read the New Riders book along wit the online Zope Book. I understand that DTML is evil and that new users should prefer ZPT. Anyway, is there a good document for newbies that come from procedural languages like VB that would show them how to get up to speed? I need to understand how to separate logic and presentation as cleanly as possible. I'm actually still wondering which framework to use (Midgard, Enhydra, etc.) Thx Fred.

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Webtrends (or something like that) and Zope 2.6
by Martin Koekenberg 09 Dec '02

09 Dec '02

Hallo, Is it possible to use webtrends with zope. I want to have some statistics from the websites that i host in Zope 2.6. Does annybody have an idea how to fix this ? Martin Koekenberg

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Passing more than one variable
by Flavio 09 Dec '02

09 Dec '02

Hi, Does anyone knows how to pass more than one variable using the following : "/courier/evalinvoice/<dtml-var sp_invc><dtml-var sp_subrefc>/editinvoice" Where evalinvoice is the sql method containing the sql statement, editinvoice is the form that will receive the information and the items in red are the variables. Can anyone help me with this ? thanks, Flavio Maciel <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> IT Development & Support Welke Customs Brokers Welke Global Logistics Tel : (416)674-7606 x.268 Fax: (416) 674-1635 HYPERLINK "mailto:flavio@welke.com"mailto:flavio@welke.com --- Checked by AVG anti-virus system (http://www.grisoft.com) Version: 6.0.426 / Virus Database: 239 - Release Date: 12/2/2002

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Re: [Zope] Storing many large objects in many folders
by Paul Winkler 09 Dec '02

09 Dec '02

On Mon, Dec 09, 2002 at 10:04:12PM +0100, Christoph Schmitz wrote: > Hi Paul, > > thanks for your advice; the problem with your suggestion is that > /mytree is already populated with "real" zope objects, and I'd need > something like a "handle" to a filesystem that is a first class zope > citizen, but serves fs content when referenced. If you want to put individual "files" in /mytree, and /mytree is already a zope Folder, just add an ExtFile for each file. -- Paul Winkler http://www.slinkp.com "Welcome to Muppet Labs, where the future is made - today!"

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reference to a DTML Document in a script called by this Document
by Elena Schulz 09 Dec '02

09 Dec '02

Hi, context in a script called from a DTML-Method refers to the containing folder as expected. But context in a script called from a DTML-Document refers also to the containing folder!? Shouldn'd that be the Document itself? Even if I call the script like myscript(this()) in a DTML-Document I cannot get the reference to this DTML-Document. So how do I get reference to a DTML- or ZPT Document in script called from that Document ? -- many thanks for your replies, Elena

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Zope 2.6 & Aache 2.4 on RedHat 8
by Martin Koekenberg 09 Dec '02

09 Dec '02

Hello I'm trying to get Zope And Apache 2.4 working on RedHat 8.0. I try to use the rewrite module but this still without succes. Who can Help me. Martin Koekenberg

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Install problems
by ken 09 Dec '02

09 Dec '02

This is on RH 7.2, kernel version 2.4.7-10. Today I downloaded and installed Zope-2.5.0-linux2-x86 and then did as root in /usr/local/bin/Zope ./install -p /var/www/cgi-bin/zope -g root -u root ./start After getting the below output, it just hung. Running ./start a second time, resulted in the same: <output> ------ 2002-12-09T17:06:26 INFO(0) ZODB Opening database for mounting: '142008640_1039452975.181482' ------ 2002-12-09T17:06:26 INFO(0) ZODB Mounted database '142008640_1039452975.181482' at /temp_folder ------ 2002-12-09T17:06:26 INFO(0) ZServer HTTP server started at Mon Dec 9 12:06:26 2002 Hostname: heidegger.mousecar.net Port: 8080 ------ 2002-12-09T17:06:26 INFO(0) ZServer FTP server started at Mon Dec 9 12:06:26 2002 Hostname: heidegger.mousecar.net Port: 8021 Traceback (most recent call last): File "/usr/local/bin/Zope/z2.py", line 705, in ? asyncore.loop() File "/usr/local/bin/Zope/ZServer/medusa/asyncore.py", line 200, in loop poll_fun (timeout, map) File "/usr/local/bin/Zope/ZServer/medusa/asyncore.py", line 79, in poll r,w,e = select.select (r,w,e, timeout) KeyboardInterrupt Traceback (most recent call last): File "/usr/local/bin/Zope/z2.py", line 474, in ? zdaemon.run(sys.argv, os.path.join(CLIENT_HOME, Zpid)) File "/usr/local/bin/Zope/lib/python/zdaemon/Daemon.py", line 79, in run p,s = os.waitpid(pid, 0) </output> (The "KeyboardInterrupt" above is where I hit ^D to get the prompt back.) What is wrong here? Any recommendations as to how to proceed? tia, ken

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Page Template Dynaics
by Mikhail 09 Dec '02

09 Dec '02

Hello all. Zope Book have example (http://www.zope.org/Documentation/Books/ZopeBook/current/AdvZPT.stx) <p metal:use-macro="python:here.getMacro()"> Replaced with a dynamically determined macro, which is located by the getMacro script. </p> Can you explain this example and show simple script? """ return 'path/to/zpt/macros/some' """ don't work. -- Mikhail 'Xen' Kashkin

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