May 2005 - Zope - Zope lists

How to make a ZPT-based form that calls itself?
by Ken Winter 19 May '05

19 May '05

Hi Zopers - I'm trying to make a ZPT-based HTML form that: 1. Displays the records in a MySQL 'Person' table; 2. Offers a field for updating this table (in my simple test example, it accepts the Id of a Person to delete); 3. When you push its 'Submit' button, updates the database; and then 4. Automatically redisplays itself, showing the updated 'Person' records. After a lot of help from the folks on various Zope lists, I've made it through steps 1-3, but I'm stuck on step 4 and I can't find an example or tutorial telling me how to do it. The relevant code snippets are: The ZPT's body... <table width="100%" height="100%" border="0" cellpadding="6" cellspacing="0"> <tr> <td width="1084" height="531" align="left" valign="top"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"> <h1> People (deletion test)</h1> <table tal:repeat="row here/dbobs/read_all_people" width="100%" border="0" cellspacing="0" cellpadding="0"><font face="Verdana, Arial, Helvetica, sans-serif"> <tr> <td width="44%" tal:content="string:${row/person_id} - ${row/first_name} ${row/middle_names} ${row/last_name}">Filler</td> <td width="56%"> </td> </tr> </table> <p></p> <form action="dbobs/delete_person_py" method="post" name="delete_form"> <p>Id of Person To Delete: <input type="text" name="person_id:int" /> </p> <p> <input name="do_delete" type="submit" id="do_delete" value="Delete this Person" /> </p> </form> <p>The "Ids" are the numbers in front of each person's name.</p> <p><a href="deltest.htm">Refresh This Page</a></p> <p tal:replace="python:here.dbobs.test1('MyParamValue')">Junk</p> </font></td> </tr> </table> ...The one-line Python script "delete_person_py" that the form's action attribute calls... container.delete_person(person_id=context.REQUEST.get('person_id')) ...The Z SQL method delete_person(person_id) that the Python script calls... delete from person where <dtml-sqltest person_id op=eq type=int> ...And a URL to the test page in its current incarnation... http://dhat.vega.zettai.net/clients/ridhwan/dhr3/deltest.htm What's wrong with this page is that you have to hit the "Refresh This Page" link to get it to do what I want it to do automatically. I suspect that what I'm missing is some basic HTML knowledge. But whatever it is, I'd appreciate your help in suggesting the missing piece. - Thanks, Ken

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RE: [Zope] Seeking advice on Zope implementation
by Dan Pozmanter 19 May '05

19 May '05

So there is only one service then? >From the book, it seemed like there was a service for services, utilities, etc. Will much of the functionality from cmf being added to the core be implemented via utilities? -----Original Message----- From: Stephan Richter [mailto:srichter@cosmos.phy.tufts.edu] Sent: Tuesday, May 17, 2005 7:11 PM To: Dan Pozmanter Cc: zope(a)zope.org; pythonic Subject: Re: [Zope] Seeking advice on Zope implementation On Tuesday 17 May 2005 18:25, Dan Pozmanter wrote: > "In Zope 3 you can turn off as many unwanted features as you like" > > That sounds really cool. How so? > (Is there a tentative list of all zope 3 services? Do you need to run > all of them?) No, there is just one network service. But there are many utilities (in the context of a component architecture) that you can simply turn off by not loading the configuration files. Zope 3 registers new functionality using a configuration language called ZCML. You can decide which configuration files you want to load and which ones you do not. Regards, Stephan -- Stephan Richter CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training

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dtml-sendmail with a tab
by Jean＠adimp.ch 19 May '05

19 May '05

Hello, I want to send an e-mail with a tab. How can I do that with a dtml-sendmail tag? Best regards. Jean Tinguely. ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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RE: [Zope] display object without index_html
by Jim Abramson 19 May '05

19 May '05

Though less elegant, perhaps this will work: dtmlIndex = DTMLFile('dtml/indexHomepage', globals()) def index_html(self): """ docstring! """ return self.dtmlIndex(self,self.REQUEST) hth, Jim > -----Original Message----- > From: zope-bounces+jabramson=wgen.net(a)zope.org > [mailto:zope-bounces+jabramson=wgen.net@zope.org] On Behalf > Of Christopher Rivard > Sent: Wednesday, May 18, 2005 1:51 PM > To: zope(a)zope.org > Subject: [Zope] display object without index_html > > i am developing a Zope product (2.7) with a "homepage" > content type and want this object to display as the index of a folder. > for other custom objects, i have display methods that call an > index view ( using DTMLFile) of the object like this: > > #homepage view > index_html = DTMLFile('dtml/indexHomepage', globals()) > > i want this object to display as the index of the folder without: > > folder/index_html/index_html > > however, when i render the object, i get: > > <Homepage at index_html> > > remove display: > > http://localhost:8080/www/index_html/index_html has an empty > or missing docstring. Objects must have a docstring to be published. > > how can i ensure that an "homepage" object with an id of > index_html will display as the index of a folder (without > calling folder/index_html/index_html)? > i hope i explained this coherently... > > any insight would be greatly appreciated- > > Thanks, > Chris > > > > > > > > > > > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] dtml-sendmail with a tab
by Dan Pozmanter 19 May '05

19 May '05

Either he wants to charge the recipient, or he Just wants to send an e-mail from a zmi tab. If its something like the latter, this: http://www.zope.org/Documentation/Guides/DTML-HTML/DTML.16.html may help. -Dan -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] On Behalf Of Andreas Jung Sent: Thursday, May 19, 2005 9:11 AM To: Jean(a)adimp.ch; zope(a)zope.org Subject: Re: [Zope] dtml-sendmail with a tab --On Donnerstag, 19. Mai 2005 14:48 Uhr +0200 Jean(a)adimp.ch wrote: > > Hello, > I want to send an e-mail with a tab. How can I do that with a > dtml-sendmail tag? > What is an email with a tab?? -aj

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the joy of hacking ZPublisher
by Jim Abramson 18 May '05

18 May '05

In my Zope 2.7 Product, I'm trying to implement a special folder, which intercepts the publishing call to any subobject and wraps the entire call in another. A concrete example: where the default action would be to traverse /MyProduct/SpecialFolder/something, and publish the attr 'something' from SpecialFolder, I want this to happen instead: doSomethingBeforeCallingTheRequestedObj() try: return mapply( something, blahblah...) finally: doSomethingAfterCallingTheRequestedObj() Why? I need to do stuff to the REQUEST before the object is called (this part wasn't difficult), and then do something *after* it's called - no matter what the results were. But only for publishables that live in or beneath the Special Folder. In fact I have something working, but one big problem - it breaks management screens in a bad way. The implementation is pasted below. Is there some much simpler way to accomplish this behavior? And am I short-circuiting security machinery in some dangerous way? class Wrapper(Implicit): """voodoo""" id = meta_type = title = "Wrapper" def __init__(self, publishable): self.pub = publishable def index_html(self): """ render the results to the client """ REQUEST = self.REQUEST print self.__class__.__name__, 'calling', self.pub try: return mapply(self.pub, REQUEST.args, REQUEST, call_object,1, missing_name, dont_publish_class, REQUEST, bind=1) finally: print self.__class__.__name__, 'done' print '' print '' __call__ = index_html Globals.InitializeClass(Wrapper) class SpecialFolder(Folder): def __bobo_traverse__ (self,REQUEST,key): print '__bobo_traverse__', REQUEST.URL, key stack = REQUEST['TraversalRequestNameStack'] target = getattr(self,key) if stack: return target return Wrapper(target).__of__(self)

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zopewiki news for april
by Simon Michael 18 May '05

18 May '05

*About the Zopewiki project* zopewiki.org aims to be a simple, comprehensive, user-maintained repository for Zope documentation, notes and links - a hitch-hiker's guide to Zope. See http://zopewiki.org for more. *News* In april, the wiki seemed to come alive due to the number of different people editing (10, as a rough guess). There has been a fair amount of cleanup activity in recent weeks. Some anti-spam measures were installed and there have been no spam incidents recently. This impacts users, however: you will not be allowed to add external links until you have configured a username at http://zopewiki.org/ZopeWiki/useroptions . At the moment this is not spelled out explicitly. The mirrored ZopeBook content has been removed in favour of links to the master copy at plope.com. There is a page linking to each chapter, which might serve for annotation/discussion of the chapters as long as backtalk comments are disabled. For more, see http://zopewiki.org/ZopeWikiNews http://zopewiki.org/ZopeWikiDiscussion http://zopewiki.org/WikiStats

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Zwiki 0.41 released, news for april
by Simon Michael 18 May '05

18 May '05

Seems I'm never going to finish this.. just *post* it! *What is it ?* Zwiki is a Zope product for building wikis - a special kind of website that's easy for anyone to edit. Zwiki was started in 1999 by Simon Michael and now receives improvements from many contributors. It is released under the GNU GPL. A new version is released on the first of the month. See http://zwiki.org for more. *0.41 release summary* Some anti-spam features, skin fixes and translation updates. Full release notes are below. *Zwiki news this month* Development activity, contributors Translation updates from T.C. Chou (chinese) and Gaspar Quiles (spanish), and a number of fixes from Jens Nachtigall. Thank you! Bug reporting & closing activity bug day on the first friday of the month Documentation activity reorganized front page UsersGuide and AdministratorsGuide are fairly complete and accurate old docs have been demoted to *Notes and linked less prominently Discussion New zwiki-edits list and mail setup new anti-spam features installed (no external links by unidentified users, delayed indexing); no spam since As a reminder, experimental rss links are available, linked on the FrontPage. They are .../pages_rss - new pages in this wiki .../changes_rss - recent edits in this wiki *Links* http://zwiki.org - Zwiki home, with all download, documentation & discussion links http://zwiki.org/ZwikiFunding - how to donate or sponsor a feature ------------------------------------------------------------------------ *Release notes* Summary Some anti-spam features, skin fixes and translation updates. Upgrade notes Translations may be somewhat in flux this release. Configuring * restrict external links: if a max_anonymous_links int property is defined, edits from unidentified users (with no username) containing more than that number of http:// links will be refused and logged * delayed indexing: pages now include the NOINDEX meta tag for 24 hours after an edit, to reduce the chance of spam links being indexed by search engines. Browsing * show page source links when using thorough search, to help with spam cleanup Mail * make subscribe form help reflect the comments/edits mailout policy (Jens Nachtigall) * AnonymousUserSubscriptionInPlone (Jens Nachtigall) fixes #878 anonymous subscription in cmf/plone subscribes "Anonymous User" * br_for_subscribed_pages_list_on_subscribeform (Jens Nachtigall) If one is subscribed to several pages, theses pages are on the same line, which looks confusing. Now it is done as with the page_subscribers list on the very same subscribeform, ie an " " is inserted between each page name. General - i18n * regenerate pot and po files, and this time with up-to-date Default comments (#1093, SM, Jens Nachtigall) * mark_PREVIEW_as_translatable (Jens Nachtigall) * chinese translation updates (T.C. Chou) * spanish translation updates (Gaspar Quiles) General - skins * subscribeform_remove-unneccessary-span-tags (Jens Nachtigall) * new api method: lastEditIntervalInHours

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Running out of sockets
by Gaute Amundsen 18 May '05

18 May '05

Coming out of lurk mode here with a really tricky one. We had just moved our server from: Zope Version (unreleased version, python 2.3.3, linux2) Python Version 2.3.3 (#2, Feb 21 2004, 21:17:53) [GCC 3.2.2 20030222 (Red Hat Linux 3.2.2-5)] To: Zope Version (Zope 2.7.5-1.fc3, python 2.3.4, linux2) Python Version 2.3.4 (#1, Feb 2 2005, 11:44:49) [GCC 3.4.3 20041212 (Red Hat 3.4.3-9.EL4)] The first thing we noticed was: Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /xp/pub/topp/invest/. Reason: Error reading from remote server Apache/2.0.52 (Red Hat) Server at www.foo.bar Port 80 ( We are running a homegrown virtual host product very similar to the "virtual host monster" behind apache via rewrites. No ZEO.) This seems to corespond to a lot of: PROBLEM(100) ZServer warning: server accept() threw an exception in the log. Restarting zope has fixed it for now, but "lsof -a -U -uzope" and "lsof -uzope | wc -l" Shows the number of open sockets steadily growing, and apparently none closing.. We have not seen the Proxy Error again yet, but it seems pretty certain sockets will run out at some point. What to do? Where to dig? I have found quite a number of references to similar problems by googling parts of this, but nothing leading me closer to figuring it out. "ulimit -a" shows the limit is 1024 ( at 1004 now everything seems fine except the occasional PROBLEM(100) XPTopic seemingly unrelated, not accept() ) "netstat -axp" gives me loads of lines like this: unix 2 [ ] STREAM CONNECTED 2792969 572/python We have tried various combinations for config options, but without any luck: "force-connection-close on" did not seem to make any difference "max-listen-sockets 500" did not keep "lsof -a -U -uzope | wc -l" from exceeding 500. maximum-number-of-session-objects 10000 session-timeout-minutes 90 This should not be related no? I realize this is becoming a very rambling question, I just thought I would include as much info as possible right away :) Regards Gaute Amundsen

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Adding zclass inside folder with python
by Anthu Nguyen 18 May '05

18 May '05

Hi, I've tried everything I can think of and am probably missing something obvious - help... I'm trying to (1) Create a folder, then (2) Add a new zclass inside that folder. Instead, the zclass is being added in the same space as the folder: - What I want: New Folder New ZClass - What's happening: New Folder New ZClass =========== The code that doesn't work: request = context.REQUEST pbuildid = request.pbuildid # Add a new folder with id=pbuildid context.manage_addFolder(id=pbuildid) # Add a new instance of the ZClass inside new folder instance = context.pbuild.createInObjectManager(request['id'], request) instance.propertysheets.pbuild_properties.manage_editProperties(request) =========== TIA, AnThu Nguyen

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