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Adding ZClass Instances via DTML
by Nico Grubert 10 Feb '00

10 Feb '00

hello, I try to add a new instance of a simple zclass "BuchClass" via dtml. I use a dtml-method "view_html" containing some code like this: <FORM ACTION="add_html" METHOD=post enctype="multipart/form-data"> <td>ID: <input type=text name=newID></td> <input type=submit value="Add"> </form> This dtml-method calls another dtml-method "add_dtml" which looks like this: <dtml-call "REQUEST.set('id','<dtml-var newID>')"> <dtml-with "manage_addProduct['BuchProduct']"> <dtml-call "BuchClass_add(_.None,_, NoRedir=1)"> </dtml-with> Calling up "add_dtml" which gets the variable "newID" will bring me this error: The id contains characters illegal in URLs. ****************************************************************** The id contains characters illegal in URLs. Traceback (innermost last): File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: add_html) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: add_html) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: add_html) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: add_html) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: manage_addProduct['BuchProduct']) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_Util.py, line 321, in eval (Object: BuchClass_add(_.None,_, NoRedir=1)) File <string>, line 0, in ? File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: BuchClass_add) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: BuchClass_add) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_With.py, line 133, in render (Object: BuchClass.createInObjectManager(REQUEST['id'], REQUEST)) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_Util.py, line 321, in eval (Object: BuchClass.createInObjectManager(REQUEST['id'], REQUEST)) File <string>, line 0, in ? File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/ZClasses/ZClass.py, line 431, in createInObjectManager (Object: BuchClass) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/OFS/ObjectManager.py, line 225, in _setObject (Object: ElementWithAttributes) File /usr/local/ZopePark/Zope-2.0.1-src/lib/python/OFS/ObjectManager.py, line 201, in _checkId (Object: ElementWithAttributes) Bad Request: (see above) ************************************************************************************************ Replacing '<dtml-var newID>' with for example 'mynewObject' will add a new zclass instance. Should I make some changes in the constructor-method which contain this codde?:    <dtml-comment> <dtml-call "REQUEST.set('id','newObId')"> <dtml-if NoRedir> <dtml-else>       thank you nico

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Calling a ZSQL methods from an external method
by J C Lawrence 10 Feb '00

10 Feb '00

Would someone who is successfully calling a ZSQL methods from an external method mind dropping me their recipe? I'm following the HOW-TO exactly, but it keeps complaining that I can't find my database connector (and is using the wrong name to find it). -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=--

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RE: [Zope] Object ID and Property confusion
by David Salgado 10 Feb '00

10 Feb '00

>I don't think this is normal behavior. This may be related to the "ZClass >ID bug". You may want to take a look at this doc: ><http://www.zope.org/Members/AlexR/ZClassIDBug>. You're right. Adding a setName call in the ZClass _add method solves the problem for all new instances. Many thanks David

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ZODBCDA Test tab doesn't work - Fix
by Duncan Booth 10 Feb '00

10 Feb '00

Previous posts to this mailing list have noted that the Test tab on an ODBC database connection doesn't work (it gives a unpack sequence of wrong size error). I have modified db.py to fix this problem, and the patch is available from http://www.zope.org/Members/Duncan/zodbcda_patch if anyone wants it. -- Duncan Booth duncan(a)dales.rmplc.co.uk int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3" "\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure? http://dales.rmplc.co.uk/Duncan

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Help ZClasses and Properties.
by Mats Nordgren 10 Feb '00

10 Feb '00

I'm trying to figure out how to use ZClasses and I found myself having problems with the manage_changeProperties for a property of the Class I made. I followed the ZDG ZClass tutorial and created the CDProduct the CDClass, set the property sheet and the class seems to be working ok but I can not for my life get the manage_changeProperties to update the properties of the instance of myCD in the root folder. I can change the properties with the Properties tab of the instance but not through DTML with the line: <dtml-call "myCD.manage_changeProperites({'title':'this title', 'artist':'this artist', 'description':'this desc'})"> It doesn't give me an error or anything it just dont change any property values. Please Help, Sincerely, Mats Nordgren

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[newbie] I Can't Get Zope to Zope
by Richard Gordon 10 Feb '00

10 Feb '00

I recently downloaded Zope to pay with on mkLinux and have yet to actually get it to run. Somewhere along the line, I did determine that I needed to rebuild Python 1.5.2 with threading enabled and got that done, so the Zope installation process went ok. The problem is: When I do ./start, things churn around for a bit, then visibly start to happen- first I get a PROBLEM(100) ZServer computing default hostname message, but then Medusa starts using hostname: localhost (this is just my little lan) and claims 8080, then ftp starts and claims 8021, then PCGI creates a socket. So far I guess we are ok, but then I get: "...ZServer Monitor Server (1.5) started on port 8099" and nothing else like "at Wed Feb 9" etc and things just sit there. When I try to log in to the server at 8080, the browser is "connecting" but eventually times out. FTP doesn't work either. If I do a port scan, it shows an unknown tcp service is on 8021, http is on 8080, and nothing is on 8099. I'd really like to experiment with Zope but haven't gotten anywhere thus far. Any help would be appreciated. Thanks.

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REQUEST and 2.1.4
by Evan Simpson 10 Feb '00

10 Feb '00

Since I triggered the hiding of REQUEST in Zope 2.1.4, I thought it would be only fair to describe how you can make it visible again in a more controlled fashion (for those who haven't already done so). Simply make a DTML Method in your root folder called 'DEBUG' (or something similar) containing the line: <dtml-var REQUEST> ...and set its permissions so that only Managers can view it. Cheers, Evan @ digicool

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Zope Debugging
by James W. Howe 10 Feb '00

10 Feb '00

In an effort to figure out why I have broken objects, I've been trying to understand how various parts of Zope work. What I would like to do is simply put some form of write statement in the python code and have information printed to a log file which I could review later. At the present time I'm just trying to figure out where things are happening and I don't want to stop execution. On a related manner, is there a way in Python to print a traceback but continue execution? For example, I might want to get to some point in the program and have a traceback which would help me figure out how I got to that point. Again, I don't want to stop execution. Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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creating cross-product classes
by Ingo Assenmacher 10 Feb '00

10 Feb '00

Hi! So, this MUST be simple to solve, but alas, I just can not figure it out: I have produced a product with some zclasse in it. Now, I want to use one or two of those classes within a new product by creating them using a constructor call of a new object. So, to make this clear, this is it: upProduct | class A | class B newProduct | class Z | class_Z_add (DTML-constructor method) | <dtml-comment> We add the new object by calling the class in a with tag. Not only does this get the thing added, it adds the new thing's attributes to the DTML name space, so we can call methods to initialize the object. Imagine Z is a folder and I want to initialliy create some objects within (probably from other products) <dtml-call "b_add(_.None, _ )"> that does not do the trick (obviously). Then I found a hint (http://www.zope.org/Members/tazzzzz/addZClasses) which gave a hint on this: <quote> If you are trying to add a ZClass instance from elsewhere in the ZODB, it's just a couple of lines more that are necessary: <dtml-with "manage_addProduct['YourProduct']"> <dtml-call "YourZClass_add(_.None, _, NoRedir=1)"> </dtml-with> </quote> This raised an Attribute Error ( _u ??<- what is this)) So, how do I do this? Thanks for ANY HELP!! Regards, Ingo.

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Re: Python Method
by Loren Stafford 10 Feb '00

10 Feb '00

Please direct your questions to the Zope mailing list so that others can benefit from the discussion. But not everyone can process HTML in their mail; so better to send plain text. Python Methods are like External Methods in that they are both written in pure Python. Python Methods are not like External Methods in that the Python Methods are restricted as to the Python modules and constructs that can be employed. The only constructs permitted are those that are "safe" for storing in the Zope database. External Methods, because they reside in the file system are subject to the stronger security of the operating system, therefore they are permitted to use all Python constructs. You cannot access the file system through Python Methods; you must use External Methods. -- Loren ----- Original Message ----- From: Pedro Silva To: Chris McDonough - Zope Cc: Pavlos Christoforou - Zope ; Loren Stafford - Zope Sent: February 10, 2000 03:46 AM Subject: Python Method Hi, Someone has told me that if I wanted to access object in the filesystem, I had to use External Methods instead of use the local filesystem Zope Product. When I was seeing something in python, to can write the code, I went to the zope page and I discorery a Product that is like the External Method, that product was the Python Method that let us write the code python and let us access to the filesystem as the same way as the External Method. What I wanted is that, if someone as tryed this product, or External Method, because the code un Python is the same, if can help me in one thing. I have one folder in the filesystem that I want to access. I'm using the OPEN, to can open the folder and I want to read the content of that folder. The code line is like: f = open('var/spool/news/articles','r') But unfortanelly, when I reun this and the rest of the code, it gives me a Syntax Error. I think that the error may be in this code line, because the otherones are correct. Can anyone tell me a way to access the content of the folder access? The other problem that I have is, I want to search in some text, that it is too in the filesystem, for some words. For example: I want to find in that file, the word From: and when he founds the word, he has to write the text after to a variable. The code that I'm using is: for lines in f.readline(): if string.find(line,'Form:'): from=lines return from Is this code correct? Thanks, Pedro PS - I have send this question to zope, too

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