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newbie questions ?
by Olivier Ricou 24 Oct '00

24 Oct '00

Hi, I spent my week-end learning how to use Zope, it was a nice painful experience. Nice thanks to Zope itself, painful because of the poor docs. The How-Tos helped me a lot but it is a real mess. Here are two questions I did not find the answers : - how to ask for authentification to see my web pages (not manage, just see) ? In Apache one has to put a .htaccess file in the directory. - how to limit the size a folder ? I want to give login to friends so they can add photos in a folder but I don't want to receive more than 200MB of data in this folder. Thanks, Olivier.

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<dtml-if url type contruct>
by kosh 24 Oct '00

24 Oct '00

What would be the correct dtml-if contrstruct for this behavior? I want to check and see if zope can resolve a url to a valid object. Ie does http://foo.com/bar/foo get you to a valid page or is it not found. I need something like <dtml-if http://foo.com/bar/foo> that way I can know when to rewrite the url based on zope finding the object or not. Thanks Kosh

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a problem with 'start' command
by Gabriela Arevalo 23 Oct '00

23 Oct '00

hi all, I am a starter with Zope and i have a simple question. I need to execute 'start' command to start the server again. when i tried to do it, it gives me the message: command not found I looked at the directory, i can find the start command, and the permissions are -rwx--x--x. Can somebody help me with this ? Thanks Gaby

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Calling objects by name
by Danny William Adair 23 Oct '00

23 Oct '00

How can I render an object in DTML if I have its id as a string? I would like to construct its name as a string and then call the object variable by its name. (Meaning I will have to make sure such an object exists) tia, CU+Prost, Danny

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dtml-in returning null
by Diego Rodrigo Neufert 23 Oct '00

23 Oct '00

Hi... I want to do something like this... <dtml-in InMethod> <input type=text name=Name value="<dtml-var name null="Name Here">"> </dtml-in> But, if InMethod return nothing it display this <input> tag one time.... There's a way to do that?? Thanks -- --------------------------- Diego Rodrigo Neufert -webmaster --------------------------- (Magic Web Design) (email) (diego(a)magicwebdesign.com.br) (curitiba) (pr)

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Lost External Methods
by Robert_J_Roberts＠rl.gov 23 Oct '00

23 Oct '00

I am running Zope 2.1.4 (binary release, python 1.5.2, win32-x86) Python version: 1.5.2 (#0, Jul 30 1999, 09:52:18) [MSC 32 bit (Intel)] System Platform: win32 I have several external methods. Just recently, they started to be good for one run only. The external methods run fine once. The next run, they error out with: "Could not execute external method: ExtMthdName" If I reload that method [Edit button it] it runs fine again for one run. Any suggestions? And... while I'm at it, is there a way in Zope to programmatically reload [Edit button] an external method (in case I can't get the problem to go away and just out of general curiosity)? Robert J. Roberts LMSI-SD&I 509.376.6343 robert_j_roberts(a)rl.gov

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Updating auto incrementing counter in a propertysheet
by Max Møller Rasmussen 23 Oct '00

23 Oct '00

What am I doing wrong here ... please !! I am trying to make an autoincrementing counter for use in a diskussion forum. It's purpose is to autogenereate id's for new messages. It is important that the id's are in order, so I need to make them this way. I have a zClass (objectmanger) with a property called "lastID", on a propertysheet called "hidden". I have then written a dtml mehtod that should return the id incremented by 1 and then sets the lastID to this new id. the dtml for the "newID()" dtml method looks like this: ---------- <dtml-call "REQUEST.set('new_id', lastID+1)"> <dtml-call "REQUEST.set(lastID, new_id)"> <dtml-return "_.int(new_id)"> ---------- When I try to get the property directly via the browser i get a result of "1" The default value for lastID=0 to begin with so this sounds plausible, but when I refresh the browser nothing happens. So I guess that lastID isn't updated in the above code. How do I do that? Also when I the try to insert "newID()" in my "mxm_comment_add" method in my zClass, to autogenerate numbers, like this: <dtml-with "mxm_comment.createInObjectManager(newID(), REQUEST)"> I get the following traceback: (And I would expect it to run at least 1 time with "1" as a new id.) Traceback (innermost last): File C:\mxmZope\lib\python\ZPublisher\Publish.py, line 222, in publish_module File C:\mxmZope\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\mxmZope\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File C:\mxmZope\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\mxmZope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: index_html) File C:\mxmZope\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: index_html) File C:\mxmZope\lib\python\App\Factory.py, line 178, in index_html (Object: RoleManager) File C:\mxmZope\lib\python\OFS\DTMLMethod.py, line 172, in __call__ (Object: mxm_comment_add) File C:\mxmZope\lib\python\DocumentTemplate\DT_String.py, line 528, in __call__ (Object: mxm_comment_add) File C:\mxmZope\lib\python\DocumentTemplate\DT_With.py, line 133, in render (Object: mxm_comment.createInObjectManager(newID(), REQUEST)) File C:\mxmZope\lib\python\DocumentTemplate\DT_Util.py, line 337, in eval (Object: mxm_comment.createInObjectManager(newID(), REQUEST)) (Info: newID) File <string>, line 0, in ? File C:\mxmZope\lib\python\OFS\DTMLMethod.py, line 168, in __call__ (Object: newID) File C:\mxmZope\lib\python\DocumentTemplate\DT_String.py, line 528, in __call__ (Object: newID) File C:\mxmZope\lib\python\DocumentTemplate\DT_Util.py, line 337, in eval (Object: REQUEST.set('new_id', lastID+1)) (Info: REQUEST) File <string>, line 0, in ? NameError: (see above)

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RE: [Zope] Help Debugging External Methods
by Robert_J_Roberts＠rl.gov 23 Oct '00

23 Oct '00

I do pretty much the same things myself. I assign sys.stderr = sys.stdout, then I create my own log file object from a module I wrote a few years ago, and then assign something like sys.stderr = self.logObj. That works well for any errors that occur after those assignments have occurred but doesn't do much for anything that happens earlier. I also run the python code outside of Zope to get it all working. It's just a pain when I have to make some minor change in the Zope to External Method logic and it breaks. That's where I start to lose it some in the debugging. Using something like: import sys, traceback, string try: trysomething() except: type, val, tb = sys.exc_info() sys.stderr.write(string.join(traceback.format_exception(type, val, tb), '')) del type, val, tb ...helps, but even with that I seem to get errors that I just can't seem to catch and report properly. I'm not sure what you are referring to with "...the Python debugger "pdb"...". I've never used it. Thanks for your help, Robert J. Roberts LMSI-SD&I 509.376.6343 robert_j_roberts(a)rl.gov -----Original Message----- From: Dieter Maurer [mailto:dieter@handshake.de] Sent: Saturday, October 14, 2000 1:51 PM To: Robert_J_Roberts(a)rl.gov Cc: zope(a)zope.org Subject: Re: [Zope] Help Debugging External Methods Robert_J_Roberts(a)rl.gov writes: > What are my options for debugging External Methods in Zope running on > Windows NT? I work under Unix. Maybe my technics are not applicable for NT. Usually, I use "print" statements for debugging purposes. Under Unix, I can redirect "stdout" to a file and view the output (be sure to flush stdout after "print"). You can also use "zLog" (may be spelled differently!). This writes log entries into the log file. The advantages: will work under Windows, contains a timestamp. If the external method does not need too many Zope infrastructure, I test it outside of Zope and integrate only, when it works properly. When everything else does not work, I use "Test.py" and the Python debugger "pdb". Dieter

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A ZClass for LaTeX documents
by John Verzani 23 Oct '00

23 Oct '00

Hi, I've been using a ZClass for LaTeX documents that I put together in a manner very similar to the one described in making a ZClass for STX documents at http://www.zope.org/Members/tseaver/STX_Document I like to mark things up in LaTeX as I can type it faster than HTML, I can create very nice printouts in PDF or PostScript and there is a nice renderer into HTML called tth. There are a few annoyances that I would like some help on. * I am using tth (http://hutchinson.belmont.ma.us/tth/) which can convert LaTeX into HTML quite well. In order to do so, when uploading the tex file or changing the tex file, I call tth and store the HTML along with the tex source. My DTML for this is <dtml-if uploaded_body> <dtml-call "REQUEST.set('body_tex', uploaded_body )"> </dtml-if> <dtml-if body_tex> <dtml-let body_html="PARENTS[-1].SiteMethods.tth(body_tex)"> <dtml-call "REQUEST.set('body_html',body_html)"> </dtml-let> </dtml-if> <dtml-call "propertysheets.Basic.manage_editProperties( REQUEST )"> <dtml-call reindex_object> Which if there is a new file upload stores it in body_tex, and then takes body tex and run tth on this to create the body_html. When I do this though, the tth is called on the old body_tex data, not the recently stored one. Because of this, I have to change the file twice. Any ideas as to why and how I can fix this? My guess is subtransactions, but I don't know how to fix that. * Ideally, I would like to be able to call the latex file this way <dtml-var latex_filename fmt=tth> (or even better just as <dtml-var latex_filename>) where tth is a method which takes a latex document and returns HTML. I couldn't figure out how to do this though. How does one go about defining new format methods for ZClasses? I would imagine it isn't hard, I just need to know where to look. * If that isn't too hard, I would also like to know how to make this an option for markup in SquishDot. I have a math class using this as a discussion board, and it would be nice to let them use basic LaTeX for math markup. Thanks for any pointers. John Verzani -- .................................................................... . John Verzani mailto:verzani@math.csi.cuny.edu . . Dept. of Mathematics http://www.math.csi.cuny.edu/~verzani . . City University of New York tel: (718) 982-3623 . . College of Staten Island fax: (718) 982-3631 . . Staten Island, NY 10314 . ....................................................................

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overriding manage methods
by Robin Becker 23 Oct '00

23 Oct '00

In my Z-Class I would like to hook various standard methods in a dtmlish way. The frame work would call my dtml method say manage_delObjects and within that method I would like to call the original manage_delObjects. I guess this must be a very standard requirement as I see that there are methods called afterAdd and beforeDelete etc in the object manager. I just don't know the proper namespace magic to override and eventually call these. -- Robin Becker

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