December 2008 - Zope

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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read-only-database
by Ulla Theiss 17 Mar '09

17 Mar '09

Hello list, I want to run the database in read-only mode from CD and configured it accordingly in the zope.conf: read-only-database on enable-product-installation off zserver-read-only-mode on Starting Zope, I get the following error: Traceback (most recent call last): File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 56, in ? run() File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 21, in run starter.prepare() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 98, in pre pare self.startZope() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 257, in st artZope Zope2.startup() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 47, in sta rtup starter.setConfiguration(cfg) File "D:\Programme\Zope\lib\python\Zope2\App\startup.py", line 56, in startup File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 96, in getDatabase File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 113, in _createDataba se File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 163, in o pen DB = self.createDB() File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 160, in c reateDB return ZODBDatabase.open(self) File "D:\Programme\Zope\lib\python\ZODB\config.py", line 97, in open File "D:\Programme\Zope\lib\python\ZODB\config.py", line 133, in open File "D:\Programme\Zope\lib\python\ZODB\FileStorage\FileStorage.py", line 112, in __init__ File "D:\Programme\Zope\lib\python\ZODB\lock_file.py", line 57, in __init__ IOError: [Errno 13] Permission denied: '\\Zope-Instance/var/Data.fs.lock' r+ means opening the file for updating. This has not to do anything with read-only. Does anybody know what I have to configure additionaly, that read-only works? I run Zope 2.8.4 on windows. Many thanks in advance, Ulla.

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Cacheable and invalidation
by Jean-Michel FRANCOIS 30 Dec '08

30 Dec '08

Hi, I m trying to invalidate one entry (and not all entries) of one FSPythonScript i have set to be cached in RamCache ZCacheable_invalidate() invalidate all entries <code> def ZCacheable_invalidate(self, view_name='', REQUEST=None): '''Called after a cacheable object is edited. Causes all cache entries that apply to the view_name to be removed. Returns a status message. ''' </code> is it possible ? By reading the code I supposed this is not. Thanks JeanMichel FRANCOIS Makina-Corpus

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cron or time server
by Garry Saddington 30 Dec '08

30 Dec '08

Does anyone know of a time/cron server for Zope that works. I want to be able to schedule a script to run every hour or so? Regards Garry

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Experiment: Pyjamas with Zope
by Jim Washington 29 Dec '08

29 Dec '08

So, I have a need to put together a more elaborate web page. Lots of pop-up dialog boxes and dynamically-updated choice lists. How to do that? I take a look at Pyjamas http://pyjs.org. Pretty cool. Here's the theory. Write fancy application web page in python using the Pyjamas/GWT API, then "compile" it to javascript. Serve it through zope, which will handle auth/auth. Client-server communication flows through json-rpc calls. What could possibly go wrong? First-off, just a simple test-of-concept. Edit the JSONRPCExample.py file in the examples/jsonrpc folder that came with pyjamas. I'll locate the jsonrpc service in zope's containment root, so I change the uri in EchoServicePython from "/services/EchoService.py" to "/". That's all I need to change. Compile it using the handy "build.sh" that's in the same folder. Look in the "output" folder and see what we got. Wow. a bunch of files. JSONRPCExample.IE6.cache.html Mozilla.cache.html OldMoz.cache.html Opera.cache.html Safari.cache.html JSONRPCExample.html JSONRPCExample.nocache.html corner_dialog_bottomleft.png corner_dialog_bottomleft_black.png corner_dialog_bottomright.png corner_dialog_bottomright_black.png corner_dialog_edge.png corner_dialog_edge_black.png corner_dialog_topleft.png corner_dialog_topleft_black.png corner_dialog_topright.png corner_dialog_topright_black.png history.html pygwt.js tree_closed.gif tree_open.gif tree_white.gif I'm lazy, so instead of doing a bunch of resource or view directives in ZCML, I let my paste.ini do the handling. [app:pyjs1] use=egg:Paste#static document_root=/home/jwashin/projects/pyjamas/pyjamas-0.4/examples/jsonrpc/output then, I link that in with the composite app. [composite:Paste.Main] use = egg:Paste#urlmap / = zope /images = images /pyjs1 = pyjs1 Now, to get to JSONRPCExample.html, I need to go to http://website/pyjs1/JSONRPCExample.html But first, I need to actually handle the json-rpc requests in zope. Make a servicetest.py. Almost exactly similar to EchoService.py in the output/services folder. from zif.jsonserver.jsonrpc import MethodPublisher class Services(MethodPublisher): def echo(self, msg): return msg def reverse(self, msg): return msg[::-1] def uppercase(self, msg): return msg.upper() def lowercase(self, msg): return msg.lower() Now, a ZCML incantation. <jsonrpc:view for="zope.app.folder.interfaces.IRootFolder" permission="zope.Public" methods="echo reverse uppercase lowercase" class = ".servicetest.Services" /> Start zope, and go to http://website/pyjs1/JSONRPCExample.html Nice page. Click the "Send to Python Service" button. Server Error or Invalid Response: ERROR 0 - Server Error or Invalid Response Damn. Pull up tcpwatch and see what we are getting. Aha. pyjamas app is sending jsonrpc with a content-type of application/x-www-form-urlencoded, so zope is not handing it off to zif.jsonserver for handling. Fix pyjamas or let zif.jsonserver handle this content-type? In zif.jsonserver's configure.zcml, in the "publisher" directive, add application/x-www-form-urlencoded to mimetypes. Restart zope. Go to http://website/pyjs1/JSONRPCExample.html It works. Change permissions in the jsonrpc:view directive. Restart zope. Go to the page. Page loads. Push the button, and I get a Basic HTTP Authentication dialog. Nice. Overall Results: So far, so good. :) - Jim Washington

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vaibhav4947 wants to keep up with you on Twitter
by vaibhav4947 18 Dec '08

18 Dec '08

To find out more about Twitter, visit the link below: http://twitter.com/i/eb416df134a504a9e2c334bc5f5f52bd66693dcc Thanks, -The Twitter Team About Twitter Twitter is a unique approach to communication and networking based on the simple concept of status. What are you doing? What are your friends doing—right now? With Twitter, you may answer this question over SMS or the Web and the responses are shared between contacts. This message was sent by a Twitter user who entered your email address. If you'd prefer not to receive emails when other people invite you to Twitter, click here: http://twitter.com/i/optout/97641e2661fefbad82dc8f5ee5f477f47e8a9f1c

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New Zope Foundation bylaws passed
by Jens Vagelpohl 17 Dec '08

17 Dec '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 After a lot of hard work a special Zope Foundation membership meeting called for December 12, 2008 passed a new set of bylaws unanimously. The current bylaws were based on those of the Eclipse foundation, which shortly after adoption were discovered to be too heavyweight for the kind of organization the Zope Foundation aims to be. Evolving the existing bylaws into something more appropriate and manageable was attempted but failed. The proposed bylaws are based on the bylaws of the Python Software Foundation, with some additional improvements the PSF itself is intending to implement. They were also brought in line with the fact that the Zope Foundation expects to conduct most of its meetings and communication online. The major differences between the current and the proposed bylaws are: * Making changes to the bylaws becomes easier. * There will be only three classes of members: 1. Nominated Members, an individual and free membership that replaces the old 'committer' and 'associate' memberships. There will no longer be any formal relation between being a Zope Committer and becoming a Foundation Member. 2. Sponsorship Members, members who financially sponsor the Foundation. 3. Emeritus Members, members who retired from active membership. The new bylaws can be downloaded from the Zope Foundation website at http://foundation.zope.org/bylaws/zope_foundation_bylaws.pdf Jens Vagelpohl, Board Member, Zope Foundation -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAklJG3kACgkQRAx5nvEhZLKqnQCfdyRuxscSC8WuRy+2KToifNEu RxIAnixe40ecsE0cAmog5K4dPPgq24eX =gzty -----END PGP SIGNATURE-----

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TraversalError in custom TALES namespace during Five tests
by Paul Winkler 17 Dec '08

17 Dec '08

I've implemented a custom TALES namespace that works fine when tested in the browser, but blows up in doctests. Anybody seen behavior like this? It appears that during the test, my adapter is looked up fine, but later when we try to traverse to the method, we end up with a zope.security._proxy._Proxy wrapper that hides the existence of my methods. Just to reiterate, the same code *works fine* when running Zope for real, and I only see this failure during tests. Here's the tail end of a test / pdb session: 41 def traverse(self, name, furtherPath): 42 -> subject = self._subject 43 __traceback_info__ = (subject, name, furtherPath) 44 attr = getattr(subject, name, _marker) 45 if attr is not _marker: 46 return attr 47 if hasattr(subject, '__getitem__'): (Pdb) n > /home/pw/builds/slinktopp.openplans.org/builds/20081210/opencore/lib/zope/lib/python/zope/traversing/adapters.py(43)traverse() -> __traceback_info__ = (subject, name, furtherPath) (Pdb) n > /home/pw/builds/slinktopp.openplans.org/builds/20081210/opencore/lib/zope/lib/python/zope/traversing/adapters.py(44)traverse() -> attr = getattr(subject, name, _marker) (Pdb) p subject <opencore.tales.utils.OpencoreTales object at 0x9840510> (Pdb) p name 'member_title' (Pdb) p subject.member_title *** AttributeError: <exceptions.AttributeError instance at 0x8a02518> This appears to indicate that the OpencoreTales instance itself is fine, but the security wrapper is preventing attribute access. And here's my zcml: <adapter for="*" provides="zope.traversing.interfaces.IPathAdapter" factory=".utils.OpencoreTales" name="opencore" trusted="true" /> <content class=".utils.OpencoreTales"> <require permission="zope2.View" attributes="setEngine pretty_date project_noun member_title" /> </content> And here's the relevant part of the implementation: class OpencoreTales(object): component.adapts(interface.Interface) interface.implements(IPathAdapter) def __init__(self, context): import pdb; pdb.set_trace() self.context = context def member_title(self): return member_title(self.context) ... Thanks for any advice, - Paul Winkler -- http://www.slinkp.com

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Search and Replace tool
by Tres Seaver 16 Dec '08

16 Dec '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Please don't reply to an existing thread to ask an unrelated question. > I've been doing some googling and haven't found anything exactly what I'm > looking for... Therefore, some input would be welcome. > > I want to search the data.fs file and modify existing part of a URLS from > > /zope/zope.pcgi/intranet/ > > to > > :8080/intranet/ > > > Such that If I have a URL like > > test.domain.com/zope/zope.pcgi/intranet/test.html > > will become > > test.domain.com:8080/intranet/test.html You need to clarify: are the URLs you want updated embedded in content objects, or are they dynamically generated? If the latter, you need to google for 'zope virtual hosting'; if the former, you need to explain the application better: there is no generic "search and replace" operation independent of a given application. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tseaver(a)palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJR/d3+gerLs4ltQ4RAhqJAJ9EqE3SWB6ffNzLVV7fSVHApE6QHACfaHyp U1g5P4KeN0l5t8iJySVwHWg= =Q+4S -----END PGP SIGNATURE-----

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Storing unicode in ZODB objects
by Thibaud Morel l'Horset 16 Dec '08

16 Dec '08

Hello, I'm trying to store strings with certain unicode characters that don't convert to ascii in the ZODB. Specifically, as a file object and as properties of that file object. I get the following errors (from a script): *Error Type: AttributeError* *Error Value: 'unicode' object has no attribute 'seek'* and *Error Type: UnicodeEncodeError* *Error Value: 'ascii' codec can't encode character u'\u201c' in position 0: ordinal not in range(128)* Is there a way to work around this? or do I need to use a relational DB to store the data? I'm on Zope 2.9.7 Thanks, Thibaud

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