Zope January 2004

zope@zope.dev

301 participants
424 discussions

Re: [Zope] convert python to dtml
by Jaroslav Lukesh 06 Aug '09

06 Aug '09

> Odesílatel: Exteam <exteam6(a)yahoo.co.in> > hi all, > i'm stuck at this point, > can some one convert thge following python code in to > dtml & help me. > i'm not able to convert it in to dtml. Why do you want to recode into DTML? I think that is piece of good code and much faster than DTML. You could try following replacing (original line of your code, follows with DTML code), but not tested: > rec = context.test_select_sql() <dtml-call "REQUEST.set(rec , test_select_sql())"> > print "Fields definitions" Fields definitions > recordset = rec.dictionaries() <dtml-let "recordset = rec.dictionaries()" > rownum = 1 <dtml-call "REQUEST.set(rownum,1)" > for record in recordset: <dtml-in recordset> > print "Row %d" % (rownum), "check", record Row <dtml-var rownum>, check <drml-var sequence-item><br> > rownum = rownum + 1 <dtml-call "REQUEST.set(rownum,rownum+1)" </dtml-in> and so on on the rest of code. > for key in record.keys(): > print key, "=", record[key] > print "-" * 80 > return printed

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How to modify 'title' of an object
by Rares Vernica 29 May '05

29 May '05

Hi, How can I modify the 'title' of an object in DTML? Thanks in advance, Rares _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

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Zope Training : California, USA, Feb 18-21, 2003
by Munwar Shariff 30 May '04

30 May '04

Hi All, Zope Training is re-scheduled to start from Feb 18th,2003 instead of Feb 17th, 2003. We are pleased to announce that CIGNEX Technologies, Inc., a Zope® Corporation training partner, has scheduled Zope Training in San Jose, CA February 18 through February 21, 2003. Additional information and participation details are available at: http://www.cignex.com/site/Services/ZopeTraining/index_html Best regards, Munwar Shariff CTO, CIGNEX Technologies, Inc T: 408.501.0455 x303 "Digital Strategies. Defined. Implemented!"

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request object not including querystring args
by Justin Robertson 15 Feb '04

15 Feb '04

Can anyone tell me why the first script is returning None for request.get('argClsRecId')? Script: request = container.REQUEST response = request.RESPONSE print request.QUERY_STRING print request.get('argClsRecId') return printed Request URL: http://localhost:8080/scripts/actAddSubjectReport?argClsRecId=159&argStuRec… Output: argClsRecId=159&argStuRecId=2288 None But if you try this script: request = container.REQUEST response = request.RESPONSE for x in request.items(): print x[0], x[1] return printed argClsRecId and argStuRecId are there (along with all the other things). Thanks, J _________________________________________________________________ Use MSN Messenger to send music and pics to your friends http://www.msn.co.uk/messenger

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Re: [Zope-dev] help me convert from j2ee to zope
by Ryan Boder 05 Feb '04

05 Feb '04

On Sat, Jan 24, 2004 at 04:28:24PM +0100, Clemens Robbenhaar wrote: > I am not certain if this is the right mailing list here, because > zope-dev is for the development _of_ Zope, not the development of > products _with_ Zope. It's not. The thread has moved to zope(a)zope.org. > Usually You should have some persistent object around by the Zope > framework when handling request. If doing an XML-RPC call You are already > talking to some persistent object given to You by the ZPublisher. I am > not sure what is the appropriate equivalent of a session bean in J2EE if > looking at Zope. Not knowing much about Zope, I would assume that a session bean is similar to a non-persistent Zope product, while an entity bean is similar to a persistent Zope product. >From what I have read about Zope, J2EE and Zope offer very similar services to developers. Straight from the Oreilly EJB book, EJB offers: concurrency, transactions, persistence, distributed objects (RPC), naming, and role based security. From what I have read Zope offers these same services to products. At first glance it seems like I should be able to just re-implement my EJBs as Zope products and it would work out quite well. Although the Zope developers have said otherwise so I'm not sure. Also I have noticed other similarities (keep in mind I am a Zope novice, so don't take this as fact): JSP == ZPT Servlets == script (python) objects I can only see 2 BIG differences in Zope and J2EE... 1. Java vs Python (I like Python better) 2. Zope is much nicer and easier to develop in than J2EE. It seems like the Zope designers actually tried to make things easy for developers, where the J2EE designers did not. (Or if they did, failed miserably) My only real reservation is that Zope seems very stuck on making everything a web interface. Personally I don't like web interfaces for most things. I would like to write my programs so that they use the XML-RPC publishing and integrate my client programs with user programs such as eclipse and openoffice.org. For example, one thing I am working on is a requirements management system that stores the data in an application server (hopefully Zope) but the users write their requirements documents in openoffice and openoffice interacts with the app server to store the requirements. I want the main user interface to be openoffice for that, not the web. The web interface would probably just be a read-only view for people who won't download openoffice. Is something like that reasonable in Zope? Because I do think the services mentioned above like transactions and security will be very useful in a product like this. > Another source of inspiration is to install products which seem to do > something similar what You want and try to figure out how they did it. > (I personally prefer Silva for rather obvious reasons ;) That's the route I'm going, but it does take time to figure out how other people's code works, especially when I'm still learning the Zope framework. -- Ryan Boder http://www.bitwiser.org/icanoop

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Proxy roles
by Marcin Wudarczyk 04 Feb '04

04 Feb '04

I have a question concerning proxy roles. The problem I have encountered is that when I grant a proxy role to a script, other scripts and templates called from that script do not posess that role. Is it an error, should it be like that or am I doing something wrong? Marcin Wudarczyk http://mar.prv.pl

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popen2, popen3, popen4 and Zope
by Dennis Allison 04 Feb '04

04 Feb '04

The popen libraries don't seem to function properly when used from a Zope External Method or product. I use the standard idiom -- i, o = os.popen2( cmd ) i.close() res = o.read() but Zope seems to hangs on the read whenever cmd is anything of any complexity, for example, a shell script that fires off a python instance that detaches itself and then initiates another insance of Zope. Is the problem a threading issue? Is there a preferred mechanism for spawning a process?

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Dynamic Reference, mixing ZOPE and SQL
by Ryan T. Bard 04 Feb '04

04 Feb '04

I have a sequence of code that is monstrously inefficient and am looking for help. I am storing the id tag of an ExtFile object in my sql database along with other information and am now creating a page that displays info from the database record by record. For each record displayed, I also want to pull the file size from the Zope side of things. The method which works is something like this: <dtml-in my_query> <dtml-comment> query returns file_id amongst other values </dtml-comment> <dtml-with files> <dtml-in "objectValues(['ExtFile'])"> <dtml-if "id == file_id"> <dtml-var size> </dtml-if> </dtml-in> </dtml-with> </dtml-in> With a 1000+ ExtFile objects in the "files" folder, the search is ok for just one record being displayed; however, if this page is displaying all 1000+ files based on the SQL records, then for each SQL record returned it is iterating through the entire contents of my files folder, and is very slow to resolve. What I am looking for is a way to say: <dtml-in my_query> <dtml-comment> query returns file_id amongst other values </dtml-comment> <dtml-var files.file_id.size> //where file_id is a dynamic ref // not the id itself </dtml-in> However, I don't know a good method for doing a dynamic reference here, such as the following which fails: <dtml-in my_query> <dtml-comment> query returns file_id amongst other values </dtml-comment> <dtml-with files> <dtml-in "objectValues(['ExtFile'])._['file_id']"> <dtml-var size> </dtml-in> </dtml-with> </dtml-in> I am just extrapolating from things like using "sequence-item" in an expression changes it over to "_['sequence-item']". Not even sure the dtml-in would work the way I want, but the idea is there. Maybe to effectively use something like this to reference an object I explicitly know: <dtml-in my_query> <dtml-comment> query returns file_id amongst other values </dtml-comment> <dtml-var "files._['file_id'].size"> </dtml-in> The above approach throws unauthorized exceptions, so obviously not the right way to go about it. Anyone know the correct syntax for achieving this both inside a python expression and/or as a direct dtml expression? Thanks, -- Ryan T. Bard Webmaster/Software Developer Department of Medical Education University of Miami School of Medicine Office: (305) 243-3273 The information contained in this transmission may contain privileged and confidential information, including patient information protected by federal and state privacy laws. It is intended only for the use of the person(s) named above. If you are not the intended recipient, you are hereby notified that any review, dissemination, distribution or duplication of this communication is strictly prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.

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Win2k Processor Affinity
by Jim Washington 04 Feb '04

04 Feb '04

My production machine is a dual-processor machine running Windows 2000 Server with zope running as a service. I understand from previous posts that setting processor affinity, i.e., making python/zope run on only one of the processors, may be a good thing. Since this is my production machine, I would rather not experiment too much. What I have is the imagecfg.exe program from http://www.robpol86.com/tutorials/imagecfg.php, and the instructions are to run imagecfg -u file.exe imagecfg -a 0x1 file.exe on the executable file I would wish to set affinity to processor 1 on. I see that in Task Manager, I cannot set processor affinity manually on my python process. I get "access denied." I am running what I presume is the stock win32 install of zope-2.6.2. It began as 2.6.0, but has been upgraded. So, now for the question: Has anyone done this? Is the above procedure the correct way to do this? Like I say, it's a production machine, and I would rather not experiment. Which executable(s) should be imagecfg'd? Is it the python.exe in [zope]/bin? Or the .exe that starts the service? or a .dll or two? -- Jim Washington

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ImportError: No module named cPersistence
by Michael Long 02 Feb '04

02 Feb '04

Hi, In the following environment I get this traceback. What does anyone have any suggestions on what is wrong. zope 2.7.0-rc1 MySQL-python-0.9.3b1 ZMySQLDA-2.0.8 MySQL-Max-5.0.0-0 edev:/opt/zopeInstance/bin # ./runzope Traceback (most recent call last): File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/run.py", line 49, in ? run() File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/run.py", line 18, in run opts = _setconfig() File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/run.py", line 41, in _setconfig opts.realize(doc="Sorry, no option docs yet.") File "/opt/Zope-2.7.0-rc1/lib/python/zdaemon/zdoptions.py", line 262, in realize self.load_schema() File "/opt/Zope-2.7.0-rc1/lib/python/zdaemon/zdoptions.py", line 303, in load_schema self.schema = ZConfig.loadSchema(self.schemafile) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/loader.py", line 37, in loadSchema return SchemaLoader().loadURL(url) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/loader.py", line 71, in loadURL return self.loadResource(r) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/loader.py", line 137, in loadResource schema = ZConfig.schema.parseResource(resource, self) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/schema.py", line 43, in parseResource xml.sax.parse(resource.file, parser) File "/usr/local/lib/python2.3/xml/sax/__init__.py", line 33, in parse parser.parse(source) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 107, in parse xmlreader.IncrementalParser.parse(self, source) File "/usr/local/lib/python2.3/xml/sax/xmlreader.py", line 123, in parse self.feed(buffer) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 207, in feed self._parser.Parse(data, isFinal) File "/usr/local/lib/python2.3/xml/sax/expatreader.py", line 300, in start_element self._cont_handler.startElement(name, AttributesImpl(attrs)) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/schema.py", line 115, in startElement getattr(self, "start_" + name)(attrs) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/schema.py", line 469, in start_schema keytype, valuetype, datatype = self.get_sect_typeinfo(attrs) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/schema.py", line 207, in get_sect_typeinfo datatype = self.get_datatype(attrs, "datatype", "null") File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/schema.py", line 200, in get_datatype return self._registry.get(dtname) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/datatypes.py", line 298, in get t = self.search(name) File "/opt/Zope-2.7.0-rc1/lib/python/ZConfig/datatypes.py", line 323, in search package = __import__(n, g, g, component) File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/datatypes.py", line 18, in ? from ZODB.config import ZODBDatabase File "/opt/Zope-2.7.0-rc1/lib/python/ZODB/__init__.py", line 18, in ? import cPersistence, Persistence ImportError: No module named cPersistence Thanks, Mike

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Zope January 2004