Re: [Zope3-Users] z3c.jsonrpc response content type bug
Roger Ineichen wrote:
Hi Yuan
Betreff: [Zope3-Users] z3c.jsonrpc response content type bug
When I use z3c.jsonrpc (svn head) to publish an object, the
response generated gets the content header:
Content-Type: application/x-javascript
According to the README.txt of the package:
This project provides the proposed request type
application/json. The request type application/json-rpc
is supported as long it is not officialy deprecated.
And it also expects to receive a request with 'application/json'
header. So this should be a bug.
To fix it, one just need to modify _prepareResult method in
the file publisher.py to change from
# set content type
self.setHeader('content-type',
application/x-javascript;charset=%s \
% charset)
to
# set content type
self.setHeader('content-type', application/json;charset=%s \
% charset)
--
Hong Yuan
Thanks for the hint. I'll take a look at that this week.
Regards
Roger Ineichen
A bit of history on this. The content-type in this bit of code was
determined more than three years ago by testing with several old major
web browsers. At the time, 'application/x-javascript' was the
content-type that reliably told the web browser to use its javascript
parser on the document so that the rpc data could be used. Other
settings did not work on all of the web browsers I tested.
So, this content-type was decided empirically (a long time ago), not
from specification. It maybe should continue to be the default for
compatibility with creaky old web browsers. But maybe it can be
changeable (if you *really* know what you are doing) so that the
outgoing document can meet the expectations of client libraries.
- Jim Washington
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Re: [Zope3-Users] Find the zope3 instance home directory (or the /var directory)
Stefan H. Holek wrote:
I don't think there is any way whatsoever in Zope 3. There is no
instance home to begin with, and the os.pardir hacks don't work
either because you can't really know where your package is installed.
Stefan
On 6. Nov 2007, at 11:02, Eric Br�hault wrote:
I had a look to different source code, and apparently the solution is
to use
the path of the current file to get the instance home, so we have
code like
this:
os.path.normpath(
os.path.join(os.path.dirname(__file__),
os.pardir, os.pardir, os.pardir, os.pardir))
Is there any easier (and cleaner) way to do it ?
I have found useful another trick related to __file__ .
If the file system location you are looking for is near code you are
using or can import, python's inspect may be your friend.
import inspect
So, if your object is, for example, a view method and you need the
directory where another method is defined for your view, you can
sourcefilepath = inspect.getsourcefile(self.otherMethod)
Here's another example for clarification. It works, but is not
particularly useful:
Let's say we want to know the file system location where
Decimal.normalize is defined.
from inspect import getsourcefile
from decimal import Decimal
We can get the location directly:
getsourcefile(Decimal.normalize)
'/usr/lib64/python2.5/decimal.py'
Or, if we just want the location of the class:
getsourcefile(Decimal)
'/usr/lib64/python2.5/decimal.py'
or, we can get the location from an instance:
d = Decimal('0.12')
getsourcefile(d.normalize)
'/usr/lib64/python2.5/decimal.py'
From there, standard os.path functions can get you locations relative to
the location given.
HTH,
-Jim Washington
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Re: AW: [Zope3-Users] Re: header trouble
Christian Zagrodnick wrote: [...] But we *are* sending a Content-Type header. And we remove the http-equiv thingy from the page template file in favour of the HTTP header. It's a good idea to keep the http-equiv content-type meta tag. If an HTML document is stored to disk, and that tag is not present, parsers and browsers cannot be sure what the character encoding is. The HTTP header should have precedence when the document is delivered over the web, but on disk, you do not have that header. More at: http://www.trilithium.com/johan/2005/09/meta-http-equiv/ -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] best way to get started nowadays?
Chris Withers wrote: Benji York wrote: Chris Withers wrote: So, what *is* the standard way now and where can I read about how to do it? That's in flux at the moment. I think Philipp's zopeproject is a step in the right direction, but haven't had a chance to look at it closely yet. Where's zopeproject's home? Chris Start at pypi (cheeseshop). You easy_install it. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Re: Zope3 still not compatible with Python2.5
Philipp von Weitershausen wrote: This is a rather confusing post. I'm not sure what you're trying to say with it. Is Python 2.5 officially supported? No. We never said it was. Does Zope 3.4 actually work on Python 2.5.1? Yes, it works just fine for me and others. For example, Grok runs on Python 2.5.1 no problem [1]. This is very good to hear. I'm not on the grok list. Is this a platform issue? Maybe, but your post isn't giving *any* useful information for tracking this down. All you're basically saying is that you were experimenting with several things all at once and that that was a bad idea. You certainly got that right. Yup. That's pretty much all I was saying - plus that in my case, the quickest solution was to go back to python2.4. I was also hoping I might hear some time frame when I might expect to try again successfully. I hope the rest isn't taken for FUD. I certainly encourage people to try out Zope 3.4 on Python 2.5 and report any problems *properly* so that we can chase down the bugs. No FUD intended. I have attached a couple of tracebacks. Traceback1 occurs when asking for /index.html. Traceback2 occurs when the instance from traceback1 is stopped and restarted. Is this more helpful? Regards, -Jim Washington 2007-09-11T22:42:56 ERROR SiteError http://localhost:8080/@@index.html Traceback (most recent call last): File /home/jwashin/buildout-eggs/tmprA8xJD/zope.publisher-3.5.0a1.dev_r78838-py2.5.egg/zope/publisher/publish.py, line 133, in publish File /home/jwashin/buildout-eggs/tmpNVNVrW/zope.app.publication-3.4.0a1_2-py2.5.egg/zope/app/publication/zopepublication.py, line 167, in callObject File /home/jwashin/buildout-eggs/tmprA8xJD/zope.publisher-3.5.0a1.dev_r78838-py2.5.egg/zope/publisher/publish.py, line 108, in mapply - __traceback_info__: bound method Contents.index of zope.app.publisher.browser.viewmeta.Contents object at 0x37dbe10 File /home/jwashin/buildout-eggs/tmprA8xJD/zope.publisher-3.5.0a1.dev_r78838-py2.5.egg/zope/publisher/publish.py, line 114, in debug_call File /home/jwashin/buildout-eggs/tmpBqALB1/zope.app.container-3.5.0a1-py2.5-linux-x86_64.egg/zope/app/container/browser/contents.py, line 439, in index File /home/jwashin/buildout-eggs/tmpW6ie0m/zope.app.pagetemplate-3.4.0b1dev_r75616-py2.5.egg/zope/app/pagetemplate/viewpagetemplatefile.py, line 83, in __call__ File /home/jwashin/buildout-eggs/tmpW6ie0m/zope.app.pagetemplate-3.4.0b1dev_r75616-py2.5.egg/zope/app/pagetemplate/viewpagetemplatefile.py, line 51, in __call__ File /home/jwashin/buildout-eggs/tmpYyeA98/zope.pagetemplate-3.4.0a1-py2.5.egg/zope/pagetemplate/pagetemplate.py, line 115, in pt_render File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 271, in __call__ File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 891, in do_useMacro File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 536, in do_optTag_tal File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 521, in do_optTag File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 516, in no_tag File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 861, in do_defineMacro File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 957, in do_defineSlot File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 949, in do_defineSlot File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 346, in interpret File /home/jwashin/buildout-eggs/tmpG5P6SX/zope.tal-3.4.0b1-py2.5.egg/zope/tal/talinterpreter.py, line 822, in do_loop_tal File /home/jwashin/buildout-eggs/tmpD0OTbe/zope.tales-3.4.0a1-py2.5.egg/zope/tales/tales.py, line 682, in setRepeat File /home/jwashin/buildout-eggs/tmpD0OTbe/zope.tales-3.4.0a1-py2.5.egg/zope/tales/tales.py, line 696, in evaluate - /home/jwashin/buildout-eggs/zope.app.container-3.5.0a1-py2.5-linux-x86_64.egg/zope/app/container/browser/index.pt - Line 36, Column 6 - Expression
Re: [Zope3-Users] Calling a view in a doc test
Florian Lindner wrote:
Hello,
in a doctest I have an object which has a view registered.
I want to call this view and test for the XML it returns.
How can I call the view so that it is being rendered, just like called by a
browser?
Thanks,
Florian
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Hi, Florian
Search for zope.testbrowser.
It's sometimes used in functional doctests.
from zope.testbrowser.testing import Browser
browser = Browser('http://localhost/')
#browser.handleErrors = False
browser.open('/somepath/someview.html')
-Jim Washington
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Re: [Zope3-Users] Blog naming proposals
Pablo Ambrosio wrote: Bitacora, spanish for log. Since all names with blog in it seem already taken. hehe. I wondered where the word bitakora came from. as in http://www.codesyntax.com/bitakora But that seems to be taken, too. Sort-of... If you like the 'z' thing, something like expressionz or noize might be fun. Certainly better than anything with a z prepended. If you really want your product to have a stand-out name, check whatever you are evaluating on google. If there are no matches, all the better. For example: junglefig . (It's a planet earth reference.) -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Initial File Releases - Zif Collective
On behalf of the Zif Collective we are pleased to announce the release of the following packages: zif.gzipper-0.2 WSGI middleware providing gzip compression for HTTP server output. Does what mod_gzip/mod_deflate does in apache, but if your Zope 3 is not behind apache, this may be useful. Highly configurable for choosing what gets compressed, but does not compress unless the client allows. zif.headincludes-0.2 Zope 3-enabled WSGI middleware to manipulate css and javascript elements in the HTML header. It's essentially the same utility as zc.resourcelibrary, except implemented as WSGI middleware. zif.jsmin-0.2 WSGI middleware for javascript compression. Configurable levels of compression. zif.jsonserver-0.1 JSON/JSON-RPC support for Zope 3. Now with zif namespace. Employs python-cjson (fast and compliant) for coding/encoding JSON if python-cjson is installed. zif.xtemplate-0.1 Document-oriented XHTML templating for Zope 3. Use lxml's elementtree API and XPath functionality to generate pages. This is fairly alpha -- interfaces and scope are still in flux. The Zif Collective is a growing collection of useful packages for Zope 3, although it is intended that some of the packages will find utility in other python efforts. Our software packages are available as eggs or tar.gz sources at the Python Cheese Shop and Sourceforge. We welcome your feedback and participation to improve our offering. You will find our landing page at: zif.sourceforge.net Regards, Jim Washington David Pratt The Zif Collective contains no harmful chemicals. ___ Zope3-users mailing list [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Is DTML Deprecated In Zope3?
Mark, Jonathan (Integic) wrote: Phillip says in his book not to use DTML any more. However, I am finding that what is easy in DTML, producing an Atom 1.0 feed, for instance, is harder in ZPT. I get peculiar errors telling me that my XML boilerplate is not valid. DTML doesn't care. I notice that in the Zope 3.3 ZMI you can create a DTML page. So is DTML going to be supported for the next few years? If you are publishing xml-ish content in zope 3, you might consider using something like the techniques in zif.xtemplate. zif.xtemplate makes XHTML (with appendix c) documents, but you could easily do something similar for Atom (or RSS) feeds. zif.xtemplate uses lxml to create XHTML documents using the elementtree API. This means using python functions, classes and methods to get around in your data, do looping, etc. You can load and parse a template from the file system as a starter piece. Additional processing is available with lxml's xpath and xslt support. I find this document-centric method a very nice thing to develop with. On the bad side, view code using this technique needs a z3 restart (or z3reload) for changes, but on the good side, all error tracebacks are standard python tracebacks. zif.xtemplate is sort-of alpha for the moment. I'm still evaluating methods that need to be included, and those that are YAGNI. We have not done any benchmarks vs. ZPT, but it seems fast enough. It includes an HTMLSanitizer for dealing with untrusted HTML. In the default pretty-print mode, zif.xtemplate puts out web pages with very pretty source. zif.xtemplate is at http://zif.sourceforge.net . We have not made any releases yet, but to see/use the code, it's available in sourceforge's svn repository. I'm interested in feedback. svn co http://zif.svn.sourceforge.net/svnroot/zif/zif.xtemplate/trunk/src/zif/xtemplate -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Menus
David Johnson wrote: I am curious what methods people use to implements simple web site menus? It seems to be this must be a common task. So far I've done this as follows: 1. Create a skin 2. Create a content type Menu as Ordered Container 3. Create a content type MenuItem as contained by Menu 4. Add a Menu and fill it with MenuItems 4. Register Menu 5. Create a macro which returns the Menu using zapi.getUtility() 6. Use the macro in the skin, and display all the MenuItems. Hi, David You can do it that way. I've been successful with the browser:menu... directives in zcml. The following, as part of my browser/configure.zcml file, actually creates an IBrowserMenu utility with a name of myMenu. I have another set of menuItems for the same menu for different interfaces, so the same named menu has different items at different parts of the site. I find it handy to have this configuration in the same file where I configure the names of the pages. !-- name the menu -- browser:menu id=myMenu title=Main menu / !-- MAIN MENU -- browser:menuItems menu=myMenu for=..interfaces.IMainInterface browser:menuItem title=Main Page action=/index.html permission=zope.Public / browser:menuItem title=About Us action=aboutus.html permission=zope.Public / /browser:menuItems - Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] getId in zope3?
Peter Bengtsson wrote: In Zope2 every object has an 'id' which meant that you can use someobject.getId() to find out what name the object is stored under in its container. Is there an equivalent in zope3? ...or am I looking for a solution to a problem that doesn't exist? Hi, Peter Have a look at zope.traversing.api If you have an older source tree, look for zope.app.traversing.api which is deprecated, but OK to use until 3.5. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] App server tracebacks for functional tests
John Maddison wrote: Hi all, Firstly, I have written some tests for an application, and with both ./bin/test -u and ./bin/test -f, they pass successfully. However, ./bin/test fails in the functional tests (on a form submit) with a rather uninformative HTTP Error 500: Internal Server Error. Performing as-near-as-I-can-make-it identical actions in a browser works fine. I'm sure I'm missing something obvious - has anyone seen something like this before? [I'm not attaching source code since I've not yet observed this problem in anything less than the entire (unfortunately) proprietary application I'm working on.] Secondly, and leading on from this, is it possible to get the traceback the application server side of things produces in functional (zope.app.testing.functional.FunctionalDocFileSuite) tests? At the moment the only information I'm seeing is the aforementioned 500 error. If you are using zope.testbrowser, you can set browser.handleErrors=False to get a more informative traceback. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Reportlab threadsafe solution?
Hi I need to produce PDFs with reportlab. reportlab is not threadsafe. (http://two.pairlist.net/pipermail/reportlab-users/2006-June/005037.html) I think I need a way to queue or generate a lockfile on requests for PDFs so that only one-at-a-time is generated. I'm hoping that there is a utility for this already, but search in the source for queue or serialize or lock gets me a lot of stuff that does not seem to relate to what I want. This looks like it would be a relatively simple utility. Has this been done yet? Any hints? -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] How to make a new namespace for pagetemplates?
FB wrote: Hi, On Fri, Sep 08, 2006 at 12:54:14PM +0200, Martijn Pieters wrote: On 9/8/06, FB [EMAIL PROTECTED] wrote: my employer want to have all external links marked with a small icon telling anonymous users from the internet that everything behind given links is beyond our responsibility. Why not use a piece of javascript to do this? See the linkpopper product on plone.org for a way to process all links in a page and process them. That product makes external links open in a new window, but the code should be easy to alter. Thank you for the hint. But there are several reasons for not using JS: * One of the constraints of that site is javascript being optional. Problem ist: marked links are mandatory - they have to be marked even with javascript turned off. * I'd like to have a tag-postprocessing namespace for some other reasons, too - e.g. for a printing-view that automatically creates a list of links at the end of the page. * I'd like to know, how to make a new pagetemplate namespace :-). As a follow-on to Philipp's comment about WSGI middleware: It could be fairly easy (to be sure, not *really* easy) to do a search-and-replace for link tags and do appropriate alterations in WSGI middleware. If I were doing this, I might re-parse the document in middleware using lxml, then do an xpath query to find the locations in the document that need changing. Then, it would be a matter of using the elementtree API to make the changes. lxml.etree.tounicode() would put the page back together for output. Since outgoing pages generated with ZPT are generally parseable, this might work OK. N.B., You may have to use the DTD at some point with this method. Lxml will attempt to xml-minimize (e.g., br/) all tags without text content, so you will have to assure that this does not happen where it shouldn't. If you are not too married to generating pages with ZPT, and if you like the elementtree API, there is also a possibility of a lxml/elementtree (python-only) method for generating pages, which can have a method for post-processing the page, in a manner like the above, except that the document stays in a parsed state until it is output by Zope. I have a working base class for this. I call it XTemplate. It's not-quite-ready-for-prime-time (no docs or tests, yet, and you have to do skinning within this framework), but if there is interest, I should be able to release a preview in the near future. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Re: zc.tables integration with Zope3
Luis De la Parra wrote: Hello this is how indexes are implemented in RDBMs.. don't know if sqllite has such a feature, but in oracle the table content is just stored in files (structured, but unordered) and a set of sorted indexes is kept for the primary key and all other secundary indexes. each index has the search fields like index0 = lastname/firstname and index1 = telephone and a file/segment/row pointer to the information. every update to the table triggers an update to all indices in the same transaction, but you get searching, sorting and batching in return. Yup. But if your data is in a zodb, you only have one (maybe two, with an OrderedFolder) canonical ordering of things in a container. Any other order requires sorting the entire set on the fly. ... At the moment. ;) For anyone following this thread, I have updated my factoradic implementation code this morning. It now memoizes to an sqlite db, and is much much faster overall. http://blog.hill-street.net -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zc.tables integration with Zope3
Martijn Faassen wrote: Jim Washington wrote: This is probably a bit premature, but I have been doing some thinking about reordering/batching of large sets. My current (not-quite-ready-for-prime-time) solution involves factoradics, and I have done a bit of a write-up on my blog, http://blog.hill-street.net/?p=5 . I don't have time to read your article right now, but I will do so later. I'm quite interested in making the presentation of tabular data scale better. Right now, zc.table excepts to have access to the whole list in order to sort and batch it, but with huge amounts of data this may not scale so well. Relational databases have limit queries that seem to help here, though I'm not sure how much optimization is happening on the backend level. Anyway, just wanted to register my interest in this topic, if indeed I understand you correctly. Hi, Martijn Good to hear that there may be some interest. As usual, soon after publishing, I came up with some ideas for improving the implementation algorithms. It's on my to-do list. BTW, I have recently been having some fun generating Zope 3 pages using lxml. I plan to do another article about that, soon. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zc.tables integration with Zope3
David Pratt wrote: Hi Jim. This approach is completely new to me. It is interesting and I'll keep an eye on your blog. How expensive is updating indexes with data modification. You are talking about sqlite, does this mean you figure the indexes would be a significant drag on the ZODB due their size or is this idea a performance consideration. Many thanks. The expense is in recalculating the new factoradic for each stored index, which involves a lot of division and factorial operations. But this might be done in a smart way. Maybe instead of on-change, we could recalculate an index on first access to that index after change. Sqlite would be mainly for performance, ATM. A lookup is less expensive than calculating a factoradic of a very large number. Size may also be an issue if the index is stored in the zodb. An integer (long as it might be) is the most compact representation of the factoradic. I'm pretty sure that longs end up as base ten strings in a pickle, but that is still smaller than the pickle of the factoradic list representation. I still need to experiment more, but it's not out of the question that the indexes could end up as sqlite-backed annotations to the container/data source, particularly when sqlite may already be in the mix for memoizing factorial and/or factoradic calculations. It may still turn out that this is all not worth the effort in practice. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Re: Dojo Support
Rocky Burt wrote: On Tue, 2006-30-05 at 14:49 -0400, Jim Washington wrote: I am just starting to try-out Dojo (http://dojotoolkit.org). Interestingly, the RPC it does is JSON-RPC. Since I am well-acquainted with JSON-RPC support in Zope 3, I have put together a package for making Dojo and its JSON-RPC client work with Zope 3. http://zif.hill-street.net/dojosupport At the moment, Dojo is just a new toy for me, but I see a lot of potential for rich user interfaces using Zope 3 and Dojo. Perhaps the z3c.javascript project in svn.zope.org would benefit from inclusion with dojo (rather than you making your own prj). Thanks, Rocky. I sometimes need to be reminded about things like this. I see some dojo support is already there in z3c.javascript, and it is for most purposes identical to what I worked out. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] New Request Variable?
I have an expensive function (the result is a long list of IntIds) that I only want to call once in a request. It only gets calculated the first time it is called, and the results may be used anytime after that. But only for the current request. A subsequent request has to recalculate from the beginning. Session is the wrong place to stash this. I do not want want it to persist beyond the current request. Request is also the wrong place. It's slotted; I cannot add variables. So where is the proper place to hold on to something like this just for the duration of one request? Suggestions (or solutions), anyone? I fear I may have missed something obvious. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] New Request Variable?
Fred Drake wrote: On 5/19/06, Jim Washington [EMAIL PROTECTED] wrote: Request is also the wrong place. It's slotted; I cannot add variables. Isn't this what the request annotations are for? -Fred Thanks, Fred. That is, of course, the correct (and quite elegant) solution. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] How to make catalog working?
Frank Burkhardt wrote: Hi, On Mon, May 15, 2006 at 11:16:09PM +0200, Florian Lindner wrote: Hello, I've added some content objects of interface IFoo to my site. Then I added a catalog to my site (and also a IntID utility). I registered both. To the catalog I've added a FieldIndex and a TextIndex, set the interface to IFoo and the fieldname to a field that IFoo has. I registered both indexes. The IntID utility has to be registered *before* all the objects you want to find. No object created before you had a registered IntID will ever be found. Have a look at http://zope3.mpg.de/suchen (Das Prinzip) You can get the IntIDs utility to register objects after they are created. Something like the below will register and catalog a bunch of items: def catalog_items(self): intids = zapi.getUtility(IIntIds,[name]) catalog = zapi.getUtility(ICatalog,[name]) for item in some_function_that_returns_the_items(): catalog.index_doc(intids.register(item), item) The most important part is the intids.register(item) statement. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Re: [Zope3-dev] Re: Zope 3 lacks Ajax capability?
:: moved to zope3-users Jeff Rush wrote: Tarek Ziadé wrote: Jeff Rush wrote: what does your code actually do ? Provide a chat window at the bottom of a page, in which a student interacts with a teaching app and members of his team. In the upper portion of the page, the teaching app alternately presents proficency questionaires and lessons. My idea was to construct a Zope widget component that can be dropped over, using widget= in ZCML, a TextArea/Lines Zope widget and transform it into an async typing window into a chat space. You might consider using jsonserver (JSON-RPC) for the ajax-y communication. Soon, JSON-RPC (1.1-specification) will have native support for keyword (named) parameters, which provides a python-ish feel for the javascript calls. I have a public example (not open-sourced, sorry - line-of-business app) of jsonserver in action at http://www1.vtdata.org . It's fast and does the async communication with little fuss. jsonserver is available at http://zif.hill-street.net/jsonserver -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Re: [Zope3-dev] Re: Zope 3 lacks Ajax capability?
Benji York wrote: Jim Washington wrote: I have a public example (not open-sourced, sorry - line-of-business app) of jsonserver in action at http://www1.vtdata.org . It's fast and does the async communication with little fuss. Very cool. Thanks! (and apologies to non-US-ians about the US-centric questions :( ) The quiz app still has a few soon-to-be-resolved edge-case buglets, but we have been using it for high school contests around the state (yes, through cranky school district firewalls/proxies, etc.), and for occasional exams around the university. An upcoming jsonserver release will have its own JSON-RPC javascript included, based on Roger's JSON-RPC javascript in Tiks. jsolait, while still OK to use, will no longer be an external recommended dependency, which I think will make a lot of people happy. The new semantics of JSON-RPC1.1 will be available. Keyword parameters are cool! Best of all, the new release will be a unified release that will operate in both Zope 2/Five and Zope 3. Balazs Ree is the genius behind that amazing feat. Stay tuned! -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] How to make catalog working?
The problem is not that objects have been created before the IntIDs utility. The IntID utility says that 3 objects are registered, but the catalog indexes are still zero count. This is a bit baffling. Did you name your IntIDs utility? The IntIDs utility works best when unnamed, I think. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] More fun with WSGI/zope.paste
Gary Poster wrote: Checking in the code is an assertion of provenance/license: for instance, I wouldn't have known about the Plone code, which is potentially a problem because of GPL vs. ZPL (see below). Hold-off on checking-in jsmin. The original author of the packer has not decided whether allow us a BSD-ish license or ZPL. Wanna get commit privileges? :-) It's the easiest way for you to assert the code's status. Can't at the moment. My note to Benji explains. Maybe after I see the new contributor agreement... - putting them in a namespace? Probably a good idea. If it was only one... well, but I do seem to have gotten prolific. :) :-) Go for it (on whichever namespace gets decided). These three projects, I feel a need to reiterate, need zope.paste and Paste.Deploy (or a similar stack), to use with zope3, so deprecating zc.resourcelibrary may not be a good idea until more folks are on-board with the wsgi filters idea. I think the project is on board with wsgi. paste is maybe not as mainstream in the Zope world yet, so yes, maybe we need to let that settle out. If there are no issues with the paste-based version, though, I'd like zc to use it. No further issues. There is some code from Python Cookbook (Python License, presumably, and presumably acceptable) but the rest is substantially mine. gzipper and jsmin really have no particular ties to zope at all, except that I used Zope3 for developing them, and they probably work OK in Zope3 as a consequence. (PS. er, actually, the packer in jsmin came from Plone.) eek! GPL can't go in zope.org. Do you know what the license is to that particular component? Of course, I went eek! first when Balazs wanted to include the packer in jsonserver / concatresource when it was GPL. This will be handled in a most appropriate and satisfactory manner. With the caveats above, sounds great. :-) Good. You will find that my code has the very liberal Academic Free License referenced. If you need different, I will be happy to relicense. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: Re : [Zope3-Users] formlib problem
: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tal\talinterpreter.py line 352 in interpret
= 'handlers[opcode](self, args)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tal\talinterpreter.py line 976 in
do_defineSlot
= 'self.interpret(block)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tal\talinterpreter.py line 352 in interpret
= 'handlers[opcode](self, args)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tal\talinterpreter.py line 625 in
do_insertText_tal
= 'text = self.engine.evaluateText(stuff[0])'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\app\pagetemplate\engine.py line 101 in
evaluateText
= 'text = self.evaluate(expr)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tales\tales.py line 696 in evaluate
= 'return expression(self)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tales\expressions.py line 249 in __call__
= 'v = var(econtext)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tales\expressions.py line 205 in __call__
= 'return self._eval(econtext)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\tales\expressions.py line 199 in _eval
= 'return ob()'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\app\pagetemplate\talesapi.py line 73 in
title_or_name
= return getattr(self, 'title', '') or zapi.name(self.context)
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\app\traversing\api.py line 149 in getName
= 'return IPhysicallyLocatable(obj).getName()'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
C:\Python24\Lib\site-packages\zope\interface\interface.py line 682 in __call__
= 'raise TypeError(Could not adapt, obj, self)'
** exceptions.TypeError: ('Could not adapt', Items at 0x3d7ce30,
InterfaceClass zope.app.traversing.interfaces.IPhysicallyLocatable)
127.0.0.1 - - [19/Apr/2006:16:13:32 +0200] POST /netevenTest/test/neteven.Accounts.1/ HTTP/1.1
200 163 - Mozilla/5.0 (Windows; U; Windows NT 5.1; fr-FR; rv:1.7.12) Gecko/20050919
Firefox/1.0.7
It seems that retrieving my object from code doesn't give me an address for it, which would cause the problem with IPhysicallyLocatable (my uninformed guess).
Is there a way to solve the problem, knowing that my object is retrieved
through sqlos, and thus has no true address ? There might be something else but
being
quite new to zope 3 (and enjoying it, thanks to you all guys), I can't figure
it out.
Maybe these questions will help.
What is an Items object?
Why are you calling a page template that needs title_or_name with an
Items object as the context?
-Jim Washington
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Re: Re : Re : [Zope3-Users] formlib problem
Stéphane Brault wrote:
Hi Jim,
the Items object is my object, linked to my items, table which implements the IItems interface I use for my form:
from neteven.interfaces.items import IItems
from zope.formlib import form
class ItemsForm(form.EditForm):
form_fields = form.Fields(IItems)
form_fields = form_fields.omit('dateLastUpdate')
Items is defined this way:
from zope.interface import implements
from sqlobject import *
from sqlos import SQLOS
from neteven.interfaces.items import IItems
class Items(SQLOS):
implements(IItems)
class sqlmeta:
table = 'items'
When I add this zcml declaration :
browser:page
for=.interfaces.items.IItems
name=edit.html
class=.forms.items.ItemsForm
menu=zmi_views
title=Edit a Item
permission=zope.ManageContent
/
everything works fine from the ZMI (I created simple containers to test that).
My JSON server side code is:
def getItemEdit(self, itemId):
item = Items.get(itemId) #a sqlos function to get an Item instance
from the table given its Id
return ItemsForm(item, self.request)()
The fact is I don't use any page template right now ( though I might do this later to have a nice GUI).
Actually, you are using a page template.
Calling ItemsForm() invokes the render() method of
zope.formlib.form.FormBase, which uses pageform.pt in the zope.formlib
folder by default. This is where title_or_id is requested.
You may wish to set a different template for your ItemsForm class.
Have you tried subclassing form.SubPageEditForm instead of form.EditForm?
-Jim Washington
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[Zope3-Users] Announce: httpgz - gzip compression
Announcing httpgz, a Zope 3 package that performs gzip compression of most responses. More information and download is available at http://zif.hill-street.net/httpgz . There's not much to it, but bandwidth savings of up to 80% are possible. httpgz requires Zope 3 version 3.2 or greater. Enjoy! -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Re: Please Guido, pick me, pick me!
Martin Aspeli wrote: Lennart Regebro [EMAIL PROTECTED] writes: But having a name that signifies that there is something a little more than a new major-version release going on here would go a long way in giving people something to fix their minds on. Not if that name changes with every release, becuase then people will see it as a release code name, because that's what it will be. Absolutely - we seem to be on the same page. :) The branding needs to be consistent and carried forward, until such time we refactor the whole thing again and call it Zope 4. :) My university, Virginia Tech, is doing something similar right now, and I think it is in part due to recent negative publicity involving athletics (I could be wrong). The vision includes a new trademarked tagline (Invent the Future) and a new logo incorporating the tagline. http://www.vtnews.vt.edu/story.php?relyear=2006itemno=53 We could do something similar: Zope 3: Excellence in Web Component Design OK, I'm not a marketer, but something in that vein could help to gain community standing. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Problem: Could not locate Zope software installation! - solution
Martin Kudlvasr wrote: Ronald L Chichester wrote: This, of course, begs the question of some 64-bit compatibility issue. That is a possibility, but we do have a 64-bit Athalon running here used in daily development with no problems (running Ubuntu). the problem is really 64 compatibility issue. When I look into mkzopeinstance script: *** for parts in [(src,), (lib, python), (Lib, site-packages)]: d = os.path.join(swhome, *(parts + (zope, app, appsetup))) if os.path.isdir(d): d = os.path.join(swhome, *parts) sys.path.insert(0, d) break else: try: import zope.app.server except ImportError: print sys.stderr, Could not locate Zope software installation! sys.exit(1) *** this means that first of directories $PREFIX/src, $PREFIX/lib/python, $PREFIX/Lib/site-packages (suffixed by zope/app/appsetup) is added to sys.path BUT !!! when compiled on 64 architecture, zope compiles its files into $PREFIX/lib64 directory, so the mkzopeinstance cannot import zope.app.server and fails. I succesfully used: *** for parts in [(src,), (lib, python), (lib64, python), (Lib, site-packages)]: *** 3.2.0-final has the same problem I please anybody competent to fix this. This has been reported to the collector: http://www.zope.org/Collectors/Zope3-dev/528 My (local) fix was to make a symlink, lib64-lib, in the instance directory. This also works. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Problem: Could not locate Zope software installation! - solution
My (local) fix was to make a symlink, lib64-lib, in the instance directory. This also works. Oops, I meant swhome directory. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Eric3 unit tests and debugger?
I like the Eric3 python IDE. http://www.die-offenbachs.de/detlev/eric3.html I've been using it for a while, mainly for file organization and its SVN and Bicycle Repair Man integration. It claims support for unit testing and debugging, but the setup for those seems to be more oriented toward full PyQt applications than packages within another framework. Has anyone tried to get those working for z3 project development? -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Problem: Could not locate Zope software installation!
Ronald L Chichester wrote: I downloaded ZopeX3-3.0.1 and Zope3.1 (final). The ./configure | make | make install (as root) went without a hitch. However, when I went to make an instance (with either 3.0.1 or 3.1) I got a Could not locate Zope software installation! In both cases, I used the default settings (i.e., Zope was made in /usr/local/Zopex/ I used /usr/local/ZopeX3x/bin/mkzopeinstance -u manager:secret ... and got the error message. I've seen this before in the bug track list, but has anyone got a workaround? I'm using Zope on Gentoo Linux (2.6.13-r2 kernel) with python 2.3.5 and and GCC 3.4.4. Just a guess. Do you have net-zope/zopeinterface installed? It provides a package named zope in /usr/lib/[system python]/site-packages. This might make weird namespace issues. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] pau and zope.manager
I wrote: I want to use pau, with session (cookie) based authentication. No basic authentication. The problem is, when the pau is activated, the zope.manager defined in zcml seems to be no longer accessible, effectively locking me out of the zmi. What I think is happening is the pau appends a prefix to the principal name, so that the principal, instead of being zope.manager, becomes prefixzope.manager, which has no permissions anywhere. I think my choices are the following. 1. make pau always look (last) in principalRegistry and return a non-prefixed principal if found and validated 2. have my authentication plugin look in principalRegistry and assign the same roles for the principals found in principalRegistry, but with the pau prefix. This would happen when the plugin is created or on demand. 3. provide methods for my authentication plugin to generate an emergency user for one of its valid principals Or did I miss something in the documentation that gets around this? Apparently not? So, I am going to choose door #3. It should be pretty simple. The main hazard is getting it wrong, which will require some amusing spelunking with the debugger to deactivate the utility if there is anything important in the ZODB. On the good side, it will prep me for the next project, which I think will require ldap. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] pau and zope.manager
I want to use pau, with session (cookie) based authentication. No basic authentication. The problem is, when the pau is activated, the zope.manager defined in zcml seems to be no longer accessible, effectively locking me out of the zmi. What I think is happening is the pau appends a prefix to the principal name, so that the principal, instead of being zope.manager, becomes prefixzope.manager, which has no permissions anywhere. I think my choices are the following. 1. make pau always look (last) in principalRegistry and return a non-prefixed principal if found and validated 2. have my authentication plugin look in principalRegistry and assign the same roles for the principals found in principalRegistry, but with the pau prefix. This would happen when the plugin is created or on demand. 3. provide methods for my authentication plugin to generate an emergency user for one of its valid principals Or did I miss something in the documentation that gets around this? -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Announce: jsonserver-1.0beta3 and jsonserver-1.1alpha
Announcing jsonserver1.0 beta3 and 1.1alpha jsonserver provides some JSON-RPC (http://json-rpc.org) support for zope3. jsonserver-1.0beta3 is available at http://zif.hill-street.net/jsonserver or at svn repository http://brigadoon.hill-street.net/svn/repos/jsonserver/tags/jsonserver-1.0beta3/ The major change for beta3 is improved safety for the minjson.py JSON parser. It now pre-parses and inspects the incoming JSON to make rogue client exploits less likely. They were not likely before, but now it's more belt-and-suspenders. Unlike beta2, beta3 works with python-2.3. jsonserver trunk (1.1alpha) is keeping up with zope3 trunk. It now does the wsgi thing, too, which I presume to be zope3's behavior for 3.2+. IMPORTANT: jsonserver trunk is now likely incompatible with zope3 3.1 or lower. jsonserver trunk is available at svn repository http://brigadoon.hill-street.net/svn/repos/jsonserver/trunk Why use JSON-RPC when there is a perfectly good XML-RPC? Client support. jsonserver with jsolait works with most gecko browsers (Firefox, Mozilla, Netscape 6.1+, etc.), khtml browsers (Safari 1.2+ and konqueror 3.4+), recent IEs, and Opera 8.1. And I understand it is very easy to write your own client in javascript, should you choose not to use jsolait. JSON-RPC also has a notify concept, where the client may send a message to the server and not expect a return response. This is handy for methods that do things but do not return things. Why does jsonserver replace the zope3 HTTP server? Client support. We need to sniff at the incoming data stream in case the client is Opera and the content-type is not set the way we want. Actually, jsonserver uses much the same code as zope3 trunk, and at the moment I don't think there is any other way to add another RPC listener. There should not be any noticeable difference other than adding support for JSON-RPC. So this is an AJAX technology? Well, it's more AJAJ, JSON instead of XML for the last letter of the acronym. Web browser clients use XMLHTTPRequest to send and receive data without a complete page refresh. You may transport HTML or XML snippets as javascript strings, so there is little difference technically. -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Announce: jsonserver-1.0beta3 and jsonserver-1.1alpha
PS. username anonymous and no password are needed for read access to the svn repository. -Jim ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Announcement - jsonserver 1.0 beta1, JSON-RPC for Zope3
Announcing: jsonserver 1.0 beta1. jsonserver is an implementation of JSON-RPC for Zope 3. It enhances Zope 3's http server to listen for content-type of 'text/x-json' and allows json-rpc methods. json-rpc methods are used like xml-rpc methods. jsonserver is licensed ZPL2.1. This is a beta release. It does everything I need it to do, but there may still be some bugs or features I missed that people want. It works with current Zope 3 svn trunk. It may work with earlier versions of Zope 3. Tests are included, just to be sure. Since the alpha announcement, there have been many bugfixes, and the JSON implementation is now a replaceable component. jsonserver also now provides feature=jsonrpc, so you can write conditional zcml that takes effect only if jsonrpc is available (thanks, Roger Ineichen!). The README.txt file has installation instructions and information about dependencies. jsonserver is available at http://zif.hill-street.net/jsonserver For more about JSON and links about JSON-RPC, see http://en.wikipedia.org/wiki/JSON . -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Announcement - jsonserver 1.0 alpha, JSON-RPC for Zope3
Stephan Richter wrote: Congratulations, though I know its late! :-) There might be some interest in the Z3-ECM community of a JSON server. I would hope there would be interest in Z3-ECM. JSON's almost-python notation is very fast to read and write, and particularly so with minjson.py, which is part of the project. Of course, JSON(-RPC) only transports text-ish things; images and such need a different transport, I think. And I probably should have been a bit more explanatory on a couple of things in my announcement: 1. Since it is in my svn repository, and still alpha, it will change (presumably improve) as I see fit. If anyone sees anything that needs improving, let me know; I'm still enthusiastic about the project, so updates can happen quickly. In fact, I just did a minor update. Debug info now uses the logging facility instead of simply printing on the console :) . I'll wait until I hear positive things from anyone needing unicode (still a nagging worry) with it before I make a beta announcement. 2. My subversion repository is http only: svn co http://brigadoon.hill-street.net/svn/repos/jsonserver/trunk jsonserver will work OK. I did not bother poking another hole in the firewall for svn:// 3. minjson.py (also updated an hour or so ago) seems to work OK in pythons 2.3 and 2.4 4. If there's interest, I could probably put together and include a simple demonstration application. I am open for suggestions on what that app might be. BTW, I have also deicded that I will tackle the HTTPRequestFactory issue for 3.2 by developing some sort of registry based on subscribers that decides based on registered subscribers which request to create. This way all you need to do is to register a new subscriber to hook up a new HTTP extension. Maybe I make it a utility, I don't know. :-) Thanks, Stephan. That sounds appropriate. It seemed unpythonic to duplicate the code for all content-type listeners to add one content-type listener. Regards, -Jim Washington ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
