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Re: [Zope-dev] Adding a Date Property to a Z-Class
by Tim McLaughlin 23 Aug '01

23 Aug '01

Matt, Not really the right list for this discussion... zope would be a better one. Nonetheless, I suspect your problem is the marshaling of the value. Try naming the field like this <input type=hidden name="now:date" value="..."> note, the :date part in the name is the important bit because it'll convert the string into a date. Tim > > Hi there, > > I'm a bit out of my depth here but I have a problem and I'm hoping someone > can help... > > I created a simple product containing a Z-Class with various properties > (along the lines of the Beehive tutorial). I then created both management > interface and web based forms for creating instances of this Z-Class. > It works great...but I would now like to add a date property to the Z-Class > - so that I can conduct searches of all the Z-Class instances by date. In > order to add the date property to the Z-Class I had to include a default > value in the property sheet - no problem there. However when I come to add > an instance through my web based forms I get the following error: > > Error type: Invalid Date-Time String > Error value: > The date value from my form is passed as a hidden field with the following: > > > Hi there, > > I'm a bit out of my depth here but I have a problem and I'm hoping someone > can help... > > I created a simple product containing a Z-Class with various properties > (along the lines of the Beehive tutorial). I then created both management > interface and web based forms for creating instances of this Z-Class. > It works great...but I would now like to add a date property to the Z-Class > - so that I can conduct searches of all the Z-Class instances by date. In > order to add the date property to the Z-Class I had to include a default > value in the property sheet - no problem there. However when I come to add > an instance through my web based forms I get the following error: > > Error type: Invalid Date-Time String > Error value: > The date value from my form is passed as a hidden field with the following: > value = "<dtml-var expr="_.DateTime().Date()">" which I believe to be a > valid format. > I have a feeling what is happening is that the date value is simply not > reaching the object manager when I create the Z-Class instance - it is > created as follows: > <dtml-call "REQUEST.set('PostingNo.',REQUEST.form['new_PostingNo.'])"> > <dtml-with "manage_addProduct['portal_posting']"> > <dtml-call "posting_class_add(_.None,_, NoRedir=1)"> > </dtml-with> > > <dtml-in "objectValues(['posting'])"> > <dtml-if "(_['sequence-item'].id == REQUEST.form['new_PostingNo.'])"> > <dtml-call "REQUEST.set('our_posting',_['sequence-item'])"> > </dtml-if> > </dtml-in> > > <dtml-call > "_['our_posting'].propertysheets.posting_description.manage_changeProperties > ({ > 'Author' :REQUEST.form['new_Author'], > 'Title' :REQUEST.form['new_Title'], > 'Topic' :REQUEST.form['new_Topic'], > 'Lead' :REQUEST.form['new_Lead'], > 'Body' :REQUEST.form['new_Body'], > 'Date' :REQUEST.form['new_Date'] > })"> > > It's probably worth pointing out that I can add instances (complete with a > date property) through the management interface forms. Any ideas on how I > could get the Date value to be passed through web based forms would be > greatly appreciated!! > > Thanks, > > Matt > -- > Matthew Anderson - Web Designer - Frontier Internet Services Limited > Tel: 029 20 820 019 Fax: 029 20 820 037 http://www.frontier.net.uk > Statements made are at all times subject to Frontier's Terms and Conditions > of Business, which are available upon request. > " which I believe to be a > valid format. > I have a feeling what is happening is that the date value is simply not > reaching the object manager when I create the Z-Class instance - it is > created as follows: > <dtml-call "REQUEST.set('PostingNo.',REQUEST.form['new_PostingNo.'])"> > <dtml-with "manage_addProduct['portal_posting']"> > <dtml-call "posting_class_add(_.None,_, NoRedir=1)"> > </dtml-with> > > <dtml-in "objectValues(['posting'])"> > <dtml-if "(_['sequence-item'].id == REQUEST.form['new_PostingNo.'])"> > <dtml-call "REQUEST.set('our_posting',_['sequence-item'])"> > </dtml-if> > </dtml-in> > > <dtml-call > "_['our_posting'].propertysheets.posting_description.manage_changeProperties > ({ > 'Author' :REQUEST.form['new_Author'], > 'Title' :REQUEST.form['new_Title'], > 'Topic' :REQUEST.form['new_Topic'], > 'Lead' :REQUEST.form['new_Lead'], > 'Body' :REQUEST.form['new_Body'], > 'Date' :REQUEST.form['new_Date'] > })"> > > It's probably worth pointing out that I can add instances (complete with a > date property) through the management interface forms. Any ideas on how I > could get the Date value to be passed through web based forms would be > greatly appreciated!! > > Thanks, > > Matt > -- > Matthew Anderson - Web Designer - Frontier Internet Services Limited > Tel: 029 20 820 019 Fax: 029 20 820 037 http://www.frontier.net.uk > Statements made are at all times subject to Frontier's Terms and Conditions > of Business, which are available upon request. > -- Tim McLaughlin iterationZERO - www.iterationzero.com 703.481.2233

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Adding a Date Property to a Z-Class
by Matthew Anderson 23 Aug '01

23 Aug '01

Hi there, I'm a bit out of my depth here but I have a problem and I'm hoping someone can help... I created a simple product containing a Z-Class with various properties (along the lines of the Beehive tutorial). I then created both management interface and web based forms for creating instances of this Z-Class. It works great...but I would now like to add a date property to the Z-Class - so that I can conduct searches of all the Z-Class instances by date. In order to add the date property to the Z-Class I had to include a default value in the property sheet - no problem there. However when I come to add an instance through my web based forms I get the following error: Error type: Invalid Date-Time String Error value: The date value from my form is passed as a hidden field with the following: value = "<dtml-var expr="_.DateTime().Date()">" which I believe to be a valid format. I have a feeling what is happening is that the date value is simply not reaching the object manager when I create the Z-Class instance - it is created as follows: <dtml-call "REQUEST.set('PostingNo.',REQUEST.form['new_PostingNo.'])"> <dtml-with "manage_addProduct['portal_posting']"> <dtml-call "posting_class_add(_.None,_, NoRedir=1)"> </dtml-with> <dtml-in "objectValues(['posting'])"> <dtml-if "(_['sequence-item'].id == REQUEST.form['new_PostingNo.'])"> <dtml-call "REQUEST.set('our_posting',_['sequence-item'])"> </dtml-if> </dtml-in> <dtml-call "_['our_posting'].propertysheets.posting_description.manage_changeProperties ({ 'Author' :REQUEST.form['new_Author'], 'Title' :REQUEST.form['new_Title'], 'Topic' :REQUEST.form['new_Topic'], 'Lead' :REQUEST.form['new_Lead'], 'Body' :REQUEST.form['new_Body'], 'Date' :REQUEST.form['new_Date'] })"> It's probably worth pointing out that I can add instances (complete with a date property) through the management interface forms. Any ideas on how I could get the Date value to be passed through web based forms would be greatly appreciated!! Thanks, Matt -- Matthew Anderson - Web Designer - Frontier Internet Services Limited Tel: 029 20 820 019 Fax: 029 20 820 037 http://www.frontier.net.uk Statements made are at all times subject to Frontier's Terms and Conditions of Business, which are available upon request.

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Re: [Zope] What the f... with bobobase_modification_time in a method of a ZClass ?
by Ross Lazarus 23 Aug '01

23 Aug '01

I posted this bug almost a year ago - http://classic.zope.org:8080/Collector/1709/view I'm afraid I've stopped worrying about it and taken evasive action to the extent that I don't even know if it's fixed in the current cvs. The above collector item is still pending. Dieter, like many people just might have given the anonymous role view permission in his root folder. Many others, like me, don't usually do that. From: Dieter Maurer <dieter@h...> Date: Wed Aug 22, 2001 9:02 pm Subject: Re: [Zope] What the f... with bobobase_modification_time in a method of a ZClass ? Gilles Lenfant writes: > I want to display the date of an object built from a ZClass from a DTML > method with <dtml-var bobobase_modification_time> but I got the > authentification box when running this method. Hm.... Works for me (ZopeCVS (2.4+)). Dieter -- Ross Lazarus Visiting Associate Professor in Medicine, Channing Labs, 181 Longwood Ave., Boston MA 02115, USA. Fax: +617 731 1541, Office: +617 525 2730

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traversing from zope product
by Vincenzo Di Somma 22 Aug '01

22 Aug '01

Hi all, in our zope product (a folderish class) we want to call one of its contained methods (like a dtml-method, for example). We also want to decide which method (of all dtml-methods contained in the folderish item) at run-time... We tried using eval('self.' + method_name) and it works... The problem is it can't refer any other object in the same folder (more in general it can't traverse the zope tree)... what can we do? An example: in our "ff" folderish item there is a "mh" mailhost item and a "dm" dtml-method. We call "dm" from one of our "ff" methods (say "ff.mm") using eval("self.dm"). The result is that "dm" is correctly called but it won't find its "mh" mailhost (needed to send the mail). 1) Our code: class ourclass (Folder) def ourmethod(self, ...): method_name=... #will be "dm" at run-time parameters=... #parameters for "dm" eval("self." + method_name)(parameters=parameters) 2) Zope tree +-ff | +-dm | +-mh -- Vincenzo Di Somma - Responsabile Ricerca e Sviluppo - Icube S.r.l. Sede: Via Ridolfi 15 - 56124 Pisa (PI), Italia E-mail: e.disomma(a)icube.it WWW: www.icube.it Tel: (+39) 050 97 02 07 Fax: (+39) 050 31 36 588

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help with propertysheets
by Jeff 22 Aug '01

22 Aug '01

Help!! I am new to file based products and hope this is an easy problem... I'm trying to add a PropertySheet to a class. The following is the class def: class CMSBase(PropertySheets.PropertySheets, ObjectManager.ObjectManager, PropertyManager.PropertyManager, SimpleItem.SimpleItem): I am not sure what to pass as 'ns' in the following call, I have tried several different things all with the same error. The call: self.propertysheets.manage_addPropertySheet(id='Type', ns=globals()) The error: Error Type: TypeError Error Value: bad operand type(s) for + ..... snip ..... Traceback (innermost last): File C:\PROGRA~1\WebSite\lib\python\ZPublisher\Publish.py, line 223, in publish_module File C:\PROGRA~1\WebSite\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\PROGRA~1\WebSite\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook File C:\PROGRA~1\WebSite\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\PROGRA~1\WebSite\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_addWebBase) File C:\PROGRA~1\WebSite\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_addWebBase) File C:\Program Files\WebSite\lib\python\Products\CMSCore\WebBase.py, line 53, in manage_addWebBase File C:\Program Files\WebSite\lib\python\Products\CMSCore\WebBase.py, line 42, in __init__ (Object: Traversable) File C:\Program Files\WebSite\lib\python\Products\CMSCore\CMSBase.py, line 55, in InitCmsBase (Object: Traversable) File C:\Program Files\WebSite\lib\python\OFS\PropertySheets.py, line 672, in manage_addPropertySheet (Object: Traversable) File C:\Program Files\WebSite\lib\python\OFS\PropertySheets.py, line 677, in addPropertySheet (Object: Traversable) TypeError: (see above) Thanks for the help! Jeff

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RE: [Zope-dev] Problem with starting thread in the initialization of a product ( Linux)
by Lily Li 22 Aug '01

22 Aug '01

Thanks, Steve, it worked! I ran the zope as myself with port 8080. But in the real case, we'll run it as root with port 80. So I'll try to hack z2.py and see if I'm of good luck. Thanks again. Lily Li > -----Original Message----- > From: Steve Alexander [mailto:steve@cat-box.net] > Sent: Wednesday, August 22, 2001 4:20 PM > To: Lily Li > Cc: 'zope-dev(a)zope.org' > Subject: Re: [Zope-dev] Problem with starting thread in the > initialization of a product ( Linux) > > > Lily Li wrote: > > > Hi friends, > > > > I've encountered a serious problem when trying to port my > product from win32 > > system to Linux. > > > > As we need several threads running as long as zope is up > running, we started > > the thread (tried both daemon one and non-daemon one) in > the initialization > > of the product like (in __init__.py): > > > > import threading > > > > def initialize(context): > > ......... > > ......... > > t = threading.Thread() > > t.setDaemon(1) > > t.start() > > > > Then zope will stop responding to any HTTP request. If the > thread is not > > started, the zope will run correctly. Does anyone has the > similar experience > > with it? It seems that the problem is caused by starting thread when > > initializing. I did threading thing before but started by > HTTP request and > > it worked fine. Besides, this code works fine on win32 systems. > > > > If anyone could give me any help as soon as possible, it's highly > > appreciated. > > > Let me guess: > > You've installed Zope as root. > > The problem is that Zope changes uid and gid after initializing the > products. There's a bug/misfeature with Linux in that when a process > changes uid/gid, any existing threads do not change with it. > > If you look up the list archives for problems with Xron, you'll see > reports of similar problems. > > The solutions are to do one of the following: > > * If you don't need Zope to access port 80, or any privilaged > port, run > Zope as a non-root user. > > * Modify Zope to change uid/gid before initializing products. > > * Modify Zope to notify products with a call-back after it > has changed > uid/gid, so that products can do things like launch threads. > > * Modify Linux to fix the problem. > > -- > Steve Alexander > Software Engineer > Cat-Box limited > > > > > >

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Problem with starting thread in the initialization of a product ( Linux)
by Lily Li 22 Aug '01

22 Aug '01

Hi friends, I've encountered a serious problem when trying to port my product from win32 system to Linux. As we need several threads running as long as zope is up running, we started the thread (tried both daemon one and non-daemon one) in the initialization of the product like (in __init__.py): import threading def initialize(context): ......... ......... t = threading.Thread() t.setDaemon(1) t.start() Then zope will stop responding to any HTTP request. If the thread is not started, the zope will run correctly. Does anyone has the similar experience with it? It seems that the problem is caused by starting thread when initializing. I did threading thing before but started by HTTP request and it worked fine. Besides, this code works fine on win32 systems. If anyone could give me any help as soon as possible, it's highly appreciated. Lily Li

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Re: [Zope] select.error: (4, 'Interrupted system call')
by John Ziniti 22 Aug '01

22 Aug '01

I am moving this thread over from the zope list in the hope that someone here may have more insight into the nature of this problem, and perhaps how to go about better diagnosing/fixing the problem. To sum up: Under apparently random circumstances and rather mild amounts of traffic, Zope is crashing and printing the Traceback below to the console. This is Zope-2.4.0, Python-2.1.1 on SunOS 5.8/Sparc. Traceback (most recent call last): File "/u01/zope/Zope-2.4.0-src/z2.py", line 774, in ? asyncore.loop() File "/u01/zope//lib/python2.1/asyncore.py", line 194, in loop poll_fun (timeout, map) File "/u01/zope//lib/python2.1/asyncore.py", line 86, in poll r,w,e = select.select (r,w,e, timeout) select.error: (4, 'Interrupted system call') Any ideas? Thanks in advance, Ziniti On Thu, 16 Aug 2001 14:58:48 +0100 "J. Cone" <jcone(a)g8labs.com> wrote: > Could do. > > The old unix semantics say you deliver a signal to a process. After the > process has split itself into a bunch of threads, it's unclear which one > will get to handle it. I suspect SunOS favours ones that are blocked, > which would make sense if they were blocked in sigsuspend, waiting for a > signal, but that's not your situation :-) > > This conversation may belong on the zope-devel mailing list, where I expect > they have people who understand which signals Zope is supposed to accept, > and how. > > At 09:38 16/08/01 -0400, John Ziniti wrote: > >I just have a hunch this problem has something to do with > >threads, but I don't know why. Does that make any sense? > > > >from $PYTHON_SOURCE/Modules/selectmodule.c: > > > > Py_BEGIN_ALLOW_THREADS > > n = select(max, &ifdset, &ofdset, &efdset, tvp); > > Py_END_ALLOW_THREADS > > > > if (n < 0) { > > PyErr_SetFromErrno(SelectError); > > > >Man, I hate Solaris! I want my Linux box back! > > > > > > > >On Thu, 16 Aug 2001 13:56:45 +0100 > >"J. Cone" <jcone(a)g8labs.com> wrote: > > > >> In my application area, an error like that would mean: > >> - you blocked on a set of file descriptors > >> - either > >> - someone tried to kill you, so you clean up and then exit > >> or > >> - a timer went off so you handle it and then block again > >> > >> Is it possible to handle signals in python and find out who's sending them? > >> > >> Is it running in a terminal > >> (could be ^c'd) > >> or as a daemon > >> (could get SIGTERM on change of run-level) > >> ? > >> > >> Do any other processes on this box incurr stray fingers of G_d? > >> > >> At 08:40 16/08/01 -0400, Chris McDonough wrote: > >> >Geez. I'm not sure, John. This error is being raised by the OS in the > >> >middle of a system call. I don't know enough about Solaris to be able > >> >to give you any direction. Perhaps someone else can chime in? Anybody > >> >else seen this? > >> > > >> >John Ziniti wrote: > >> >> This is SunOS 5.8 running on a Sparc. > >> >> > >> >> On Wed, 15 Aug 2001 17:25:10 -0400 > >> >> "Chris McDonough" <chrism(a)zope.com> wrote: > >> >> > >> >> > >> >>>THis is an odd error... what OS? > >> >>> > >> >>>----- Original Message ----- > >> >>>From: "John Ziniti" <jziniti(a)speakeasy.org> > >> >>>To: <zope(a)zope.org> > >> >>>Sent: Wednesday, August 15, 2001 5:11 PM > >> >>>Subject: [Zope] select.error: (4, 'Interrupted system call') > >> >>> > >> >>> > >> >>> > >> >>>>Hey all, > >> >>>> > >> >>>>I've been getting this all day today since I upgraded > >> >>>>to Python 2.1.1 and Zope-2.4.0. It seems to happen > >> >>>>randomly, but mostly when I am moving around the ZMI, > >> >>>>the more I move around, the more likely it is to occur. > >> >>>> > >> >>>>It also brings down the Zope server, requiring a restart > >> >>>>and is thuis rather annoying. Any ideas on causes, fixes, > >> >>>>hunches? The traceback (printed to console) follows. > >> >>>> > >> >>>>Traceback (most recent call last): > >> >>>> File "/u01/zope/Zope-2.4.0-src/z2.py", line 774, in ? > >> >>>> asyncore.loop() > >> >>>> File "/u01/zope//lib/python2.1/asyncore.py", line 194, in loop > >> >>>> poll_fun (timeout, map) > >> >>>> File "/u01/zope//lib/python2.1/asyncore.py", line 86, in poll > >> >>>> r,w,e = select.select (r,w,e, timeout) > >> >>>>select.error: (4, 'Interrupted system call') > >> >>>> > >> >>>> > >> >>>>Thanks in advance, > >> >>>> > >> >>>>Ziniti > >> >>>> > >> >>>> > >> >>>>-- -- John Ziniti Channing Laboratory Brigham and Women's Hospital 181 Longwood Avenue Brookline, MA 02115 john.ziniti(a)channing.harvard.edu

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PyGreSQL and Zope 2.2.5
by Andre Schubert 22 Aug '01

22 Aug '01

Hi there, I have a problem using PygrSQL and Zope 2.2.5 and Postgres 7.1.2. Sometimes PyGreSQL seems to send a wrong password to posgres, but i don't know why because there are no error in the stupid log of zope. Does anyone know this problem, or does anyone know to trackdown the problem? thanks as

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ZDOM
by Martijn Jacobs 21 Aug '01

21 Aug '01

Hello, Last I was playing around while developping a product when I suddenly found the ZDOM.py, which told me that all ZOPE objects have a DOM implementation of some sort. Now I was wondering how important this implementation is going to be in the future of Zope, In Other Words : Is this DOM implementation going to stay in Zope and will it be expanded in the future? For example, I like the clean syntax of self.getParentNode() instead of getattr(self, 'aq_parent', None); Furtherall is it more easy to learn because the syntax and the meaning of the functions are already familliar by webdevelopers. I'm wondering what other developers think of the ZDOM, I just want your opinion guys :) martijn jacobs eastsite

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