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RFC: a simple howto build zclass (catalog aware, nondefault catalog object)
by Bak＠kedai 08 Feb '01

08 Feb '01

hi i have a howto that *really* needs your perusal. the draft is at http://www.zope.org/Members/kedai/BuildSimpleZClass this is really basic, and is meant to get a real newbie excited. and along the way learn a few things or two. along the way, i may have left some things unexplained, mainly because i don't know how it works or how to put it in words. please correct any bad terms and definition that i used. comments, pointers, definition, why somethings work the way they do, are welcome. thanks -- http://www.kedai.com.my/kk http://www.kedai.com.my/eZine I will follow you! ..Damage Inc

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The ZOPE is die when the PC shut down not properly.
by Angietel 08 Feb '01

08 Feb '01

i found that every time when my PC hang, i press reset button, after i restart it, the ZOPE is gone can not view the ZOPE and the following is my python (start web site) which showing the errors type:- asynchat.async_chat.handle_error (self) File "C:\Program Files\WebSite\ZServer\medusa\asyncore.py", line 357, in handl e_error self.close() File "C:\Program Files\WebSite\ZServer\HTTPServer.py", line 356, in close p.more() # free up resources held by producer File "C:\Program Files\WebSite\ZServer\Producers.py", line 108, in more getattr(self.logger, self.method)(self.bytes) File "C:\Program Files\WebSite\ZServer\medusa\http_server.py", line 273, in lo g ' - - [%s] "%s" %d %d "%s" "%s"\n' % ( File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 247, in log self.logger.log ('%s:%s' % (ip, message)) File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 77, in log self.write (message) File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 53, in write self.maybe_flush() File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 65, in maybe_fl ush self.file.flush() IOError: [Errno 9] Bad file descriptor C:\Program Files\WebSite> Can someone tell me how to solve the above problem?

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Writing custom tags "through the web"
by Gerald Gutierrez 08 Feb '01

08 Feb '01

I've found custom tags invaluable in my daily J2EE use, and would like to do the same with Zope. I'd like to be able to do it like everything else I do with zope, through the web browser interface. Unfortunately, the only documents I've found relating to custom tags tell me that I must modify the Zope source code and write these tags as filesystem products or classes. Is there no way to write custom tags through the web in Zope?

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Redirects within a Python Script-based Access Rule
by Walter Miller 08 Feb '01

08 Feb '01

How does one write a redirect within a Python Script-based Access Rule? For example, foo.com and foo.net both getting redirected to www.foo.com. Because I already have a virtual hosting environment using an Access Rule and a Virtual Hosting Monster, the easy albeit verbose solution was to create /vhosts/foo_net and /vhosts/foo-www and put a DTML Method "index_html" object: <dtml-call "RESPONSE.redirect('http://www.foo.com')"> in each of those folders and have the Access Rule direct requests to those objects. Walter

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User Specifies dtml template
by Tom Freeman 08 Feb '01

08 Feb '01

hi, How can I create a user defined dtml document? What I want to do is to have an option to create 'toms dtml document', this will contain: <dtml-var standard_html_header> <dtml-var header> <dtml-var header-about>   <dtml-var footer> <dtml-var standard_html_footer> instead of the standard: <dtml-var standard_html_header> <h2><dtml-var title_or_id></h2> <p> This is the <dtml-var id> Document. </p> <dtml-var standard_html_footer> how can I do this? is this possible? thanks in advance for any feedback, cheers, Tom. -- ----------------------------------------------------------------------- Tom Freeman Industrial Placement NISS, Eduserv Tel: 01225 323789 Fax: 01225 826177 Web: http://www.niss.ac.uk

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RE: [Zope] VirtualHostMonster w/ ZServer
by Walter Miller 08 Feb '01

08 Feb '01

If I understand your example properly, when someone types in www.foo.com, the Access Rule I have in the root directory uses the Python script to send requests to the /vhosts/foo directory. I tried that and got it working as a test one level up in a directory I called /root because I didn't want to risk locking myself out, i.e. /root/vhosts/foo. Now, the second part of the equation is to put the VHM in the directory you want to be the root so all objects in that directory return logical path of / instead of their true physical path. In my example above, putting a VHM in the /root/vhosts/foo directory changes the paths of the objects in /root/vhosts/foo to just /root when using www.foo.com/root as the URL. I got this working as well. The one question I have is regarding the naming convention of the VHM. It doesn't seem to matter what the name/ID of the VHM is as long as "VirtualHostRoot" is used in the requesting URL. Likewise, you can change "VirtualHostRoot" in the requesting URL to something else like "testVHM" and as long as the VHM is called "testVHM", it works. Is there a preferred naming convention? Walter > What's the "best" way to set up a few virtual hosts using only ZServer? For > example, to make www.mysite.com/vhosts/foo and www.mysite.com/vhosts/bar > appear as www.foo.com and www.bar.com respectively. Do I need a SiteRite > product or can this work with just a VirtualHostMonster? Neither SiteRoots nor VirtualHostMonsters can do the job by themselves. They both need somebody doing the first half of the virtual host mapping -- sending requests for www.foo.com to /vhosts/foo. Apache can do this, but if you want a bare ZServer, you'll need to use an Access Rule. Setting the following Script as root Access Rule should do it, in conjunction with a VHM: ## Script (Python) "vhost_access" ##bind container=container ##bind context=context ##bind namespace= ##bind script=script ##bind subpath= ##parameters=self, req, resp ##title=Virtual Host Access Rule ## host = req['HTTP_HOST'] stack = req['TraversalRequestNameStack'] # Put path elements on the stack in reverse order. if host == 'www.foo.com': stack.extend(['VirtualHostRoot', 'foo', 'vhosts']) elif host == 'www.bar.com': stack.extend(['VirtualHostRoot', 'bar', 'vhosts']) Cheers, Evan @ digicool & 4-am

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ZMySQLDA and Zope 2.3.0
by Oliver Frommel 07 Feb '01

07 Feb '01

Hi, I just wanted to mention that the new MySQL modules don't work with Zope 2.3. They seem to work (no broken Product. Open DB Connection) but then all SELECT statements return nonsense. I don't know if the problem is in the MySQLdb or the ZMySQLDA. Is there a list of the relevant changes in the API or data structures of Zope 2.3 besides the CHANGES.txt which lists only feature changes and fixes, AFAIK? --Oliver

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Zope 2.3 for Solaris 2.6 Directory Checksum Error installing!
by Brad Clements 07 Feb '01

07 Feb '01

Help, I've killed my client's Zope installation! I used Solaris Netscape 4, to download Zope-2.3.0-solaris-2.6-sparc.tgz It saves on my system as 3029993 bytes. Gzip doesn't given any errors, resulting in this .tar file 12789760 Feb 6 14:58 Zope-2.3.0-solaris-2.6-sparc.tar But tar -xvf give this error: --- code_gen/Makefile, 31 bytes, 1 tape blocks x Zope-2.3.0-solaris-2.6-sparc/lib/python/Products/PythonScripts/zbytecodehacks/code_gen/__init__.py, 49 bytes, 1 tape blocks tar: directory checksum error haan:/tmp> Anyone else seen this? I downloaded twice! Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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Re: [Zope] A little help on path namespace
by Ausum 07 Feb '01

07 Feb '01

Thanks for all the responses. I think I need to clarify the question. A product I just built "drops" dtml-documents with empty properties at any destination folder, at any part of the tree (as it's supossed a product to work). The product also creates a method within a subfolder, intended to use the properties from the correspondant dtml-document. The product at first inquiries for an id, and then it creates both the object and the method, both sharing the same requested id. Like this: any_folder.objectid (objectid been a document) any_folder.subfolder.objectid (objectid been a method ) In addition to standard header and footer tags, each one of those two objects has one single tag wich calls a method: <dtml-var doc_content> for the document <dtml-var method_content> for the method Each one of these two "submethods"(doc_content and method_content) displays the current object's properties, and are located at the root of the site, so they can be called from any folder. Document 'objectid' renders nicely this way, but I have problems with method 'objectid´, because it must use properties from an object with the same name, but located in a previous folder. How can I do that? I'd love to have something like this (for method_content, at the root) <dtml-with "previous_folder_of_objectid.objectid_translated_to_namespace"> <dtml-var anyproperty> </dtml-with> (where, after resolving, 'the_previous_folder_of_objectid' returns the first previous folder to the one containing the method, that is 'any_folder' ) Thanks for reading until this point. Even when I used them when creating the product, I'm a little confused about namespace and strings stuff, so please include an example if possible. Thanks again, Ausum

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Zope messed up
by Edwin Martin 07 Feb '01

07 Feb '01

Hello, At our site, someone installed the Python functions split2 and string in the Zope root. Due to some error, we cannot post anything now: we can't add articles and we cannot use the Zope content management page. We tried removing removing split2 and string. We can remove is from the harddisk, but it's still in the Zope management page. The management functions (rename, delete) still won't work. Please: how can I delete something from the Zope database with defunct Zope management forms?? Thanks, Edwin. --- Surf Edwin Martin's brainwaves: http://www.bitstorm.org/edwin/

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