June 2000 - Zope - Zope lists

Re: [Zope] Generating products that perform a smart clone of a master site?
by Dieter Maurer 26 Jun '00

26 Jun '00

=?iso-8859-1?q?Hamish=20Lawson?= writes: > I'm exploring the use of Zope for creating learning environments in > higher education. > > One of the requirements is for a tutor to be able to create a mini > site that includes static files along with more active objects like > discussion boards. Furthermore they need to be able to make > different 'instances' of this site for use by different groups, such > that each instance of the site conatins unique instances of any > contained active objects (such as a discussion board). You want look at ZClasses (zope.org -> Documentation). Dieter

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RE: [Zope] How-to Bypass DTML Code?
by Chris McDonough 26 Jun '00

26 Jun '00

Use >dtml-var foo< instead of <dtml-var foo> > -----Original Message----- > From: Nestor A. Diaz L. [mailto:nestor@tiendalinux.com] > Sent: Monday, June 26, 2000 1:48 PM > Cc: 'zope(a)zope.org' > Subject: [Zope] How-to Bypass DTML Code? > > > Hi, anyone know how to bypass the dtml-code, that's because > i'm writing a > howto with showing the use of some "dtml-tags" so it tries to > interpreting > it rather than only showing them. > > Thank you, > > Nestor A. Diaz L. > nestor(a)tiendalinux.com > PGP Public Key `wget http://www.tiendalinux.com/pgp/nestor.pgp` > > ---------------------------------------------------------------- > Visita http://www.tiendalinux.com la tienda virtual de > Productos y Servicios para los usuarios de Linux en Colombia > ************* Aprobado Credibanco VISA ************** > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Generating products that perform a smart clone of a master site?
by Hamish Lawson 26 Jun '00

26 Jun '00

I'm exploring the use of Zope for creating learning environments in higher education. One of the requirements is for a tutor to be able to create a mini site that includes static files along with more active objects like discussion boards. Furthermore they need to be able to make different 'instances' of this site for use by different groups, such that each instance of the site conatins unique instances of any contained active objects (such as a discussion board). The obvious approach would be to just copy and paste the folder containing the master site, but there are a couple of problems with that: (1) changes to the master site will only be reflected in new instances of the site, and (2) a lot of static files could be getting copied each time. What I think I need to do is to develop a facility that makes a tutor's site into a product. Instantiating such a generated product should make a smart clone of the master site, smart in the sense that only active objects are actually cloned, but static files are shared among all instances of the site. I suspect that ZClasses might be involved to achieve this, but are there any issues with the fact that a master site could contain folders? Furthermore I'd like a tutor to be able to visit their productised site to update it, without seeing a lot of alien stuff; changes to the master site should be reflected in all instances of the site. Am I on the right lines here? Any pointers would be appreciated. Hamish Lawson University of St Andrews, Scotland ____________________________________________________________ Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie

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RE: [Zope] Moving Z Classes around
by Brian Lloyd 26 Jun '00

26 Jun '00

> Having discovered that [my] Z Class is in the wrong product, > I'd like to > move it elsewhere. The obvious thing to do is to use Cut + Paste; > unfortunately, I get: > > The item <my-item> does not support this operation. > > (The function manage_copyObjects is not happy!) > > I can't think of another way to move my classes without > rebuilding them -- > any advice? Michael, I agree that this is a pain, but it is a fact of life for now in ZClass development. ZClasses have a different relationship with other Zope objects than normal, in that other instances in the object space refer to them as their class. That makes picking them up and moving them something not to be done lightly. In the Python world, this would be equivalent to pickling a bunch of objects and then moving the class for those objects to a different package. Without some explicit action, all of the pickled objects would break because they would be referencing a class that is no longer there. It's the same deal with ZClasses. It may be possible in the future to move ZClasses around, but something will still need to be done about existing instances created from a class that moves. So far we have avoided the hard thinking required to solve that :^) This would be a good candidate for a proposal in the forthcoming ZopeDev area on Zope.org. More on that later... Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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RE: [Zope] Zope 2.2.0b2 - PythonMethods
by Brian Lloyd 26 Jun '00

26 Jun '00

> I remember DC submitted PythonMethods into CVS, but I cannot find > PythonMethod in 2.2.0b2. Are PythonMethods for later > versions? Or it will > be separated Product forever? > > I have downloaded latest PythonMethods and successfully > installed the > component, but shouldn't it be in distribution? Or I just > don't understand > something? Oleg, There is still some work that we want to do on PythonMethods to get them where we want them for inclusion in Zope -- we need to get them well integrated with the Zope security policies and roll in some other work that will make all method-like objects behave in more consistent manner. I'm hoping that this will happen relatively soon (though I can't give you a date). Until then, there's no problem using the latest distribution. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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RE: [Zope] (no subject)
by Jay, Dylan 26 Jun '00

26 Jun '00

> -----Original Message----- > From: Dieter Maurer [mailto:dieter@handshake.de] > Sent: Saturday, June 24, 2000 8:11 AM > To: Jay, Dylan > Cc: 'zope(a)zope.org' > Subject: Re: [Zope] (no subject) > > > Jay, Dylan writes: > > Here's a feature I just submitted to the collector. > > > > It seems to me that a few tweaks to the dtml-if syntax > would be beneficial > > something like the following would certainly clean up some > of the logic I > > end up writing. > > > > <dtml-if X> > > <a href="a_url"> > > <dtml-always> > > link text > > <dtml-else> > > (no link currently available) > > <dtml-then> > > </a> > > </dtml-if> > > > > What do people think? I've not implemented it but I > wouldn't imagine its > > very hard. > I am not in favor. It is only slightly shorter/more readable > than the standard solution but requires two additional keywords. > > In standard Zope, your example reads: > > <dtml-if X> > <a href="a_url"> > </dtml-if> > link text > <dtml-if X> > </a> > <dtml-else> > (no link available) > </dtml-if> Perhaps another example will prove its uglyness. <dtml-if "REQUEST.has_key('some_value') and this().has_key(some_value) and _[some_value] == 'a property value' and AUTHENTICATED_USER.has_role('Manager')"> <a href="a_url"> </dtml-if> link text <dtml-if "REQUEST.has_key('some_value') and this().has_key(some_value) and _[some_value] == 'a property value' and AUTHENTICATED_USER.has_role('Manager')"> </a> <dtml-else> (no link available) </dtml-if> or <dtml-if "REQUEST.has_key('some_value') and this().has_key(some_value) and _[some_value] == 'a property value' and AUTHENTICATED_USER.has_role('Manager')"> <a href="a_url"> <dtml-always> link text <dtml-else> (no link currently available) <dtml-then> </a> </dtml-if> Now which looks cleaner?

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'string' object has no attribute 'propertysheets'
by Webmaster 26 Jun '00

26 Jun '00

Could anyone clue me into what I'm doing wrong here. I have searched the archives and can't find the answer. Thanks!! Error Type: AttributeError Error Value: 'string' object has no attribute 'propertysheets' <!-- Traceback (innermost last): File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/Zope220/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: ElementWithAttributes) File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/Zope220/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: doEdit_html) File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: doEdit_html) File /usr/local/Zope220/lib/python/OFS/DTMLMethod.py, line 167, in __call__ (Object: doEdit_html) File /usr/local/Zope220/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: doEdit_html) File /usr/local/Zope220/lib/python/DocumentTemplate/DT_Util.py, line 333, in eval (Object: _['goLiveDate'].propertysheets.eMed_information.manage_changeProperties({ 'eMed_title' : REQUEST.form['new_eMed_title'], 'eMed_memVerse' : REQUEST.form['new_eMed_memVerse'], 'eMed_summary' : REQUEST.form['new_eMed_summary'], 'eMed_text' : REQUEST.form['new_eMed_text'], 'eMed_DateMod' : REQUEST.form['new_eMed_DateMod'] })) (Info: REQUEST) File <string>, line 0, in ? File /usr/local/Zope220/lib/python/DocumentTemplate/DT_Util.py, line 129, in careful_getattr AttributeError: (see above)

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RE: [Zope] ProxyPass
by RC Compaan 26 Jun '00

26 Jun '00

Thanks Pierre This is a relief, I really didn't want to switch back to pcgi. I have worked a little bit with the rewritemodule but if anybody has an example on how to do this it would really be helpfull. Roché > use the rewriterule module, with the [P] flag > this is very powerfull (a little hard to use, but...) and u can > do what u want > with URLs > (doc on Apache site), and u can use Apache as a proxy server much more > powerfull (it looks like I like this word ;^) ). > > Pierre > > > Is there anyway to get around the fact that the remote ip is > the server's ip > > if you use Apache's ProxyPass directive to pass requests on to Zope? > > > > Roché > > > > _______________________________________________ > > Zope maillist - Zope(a)zope.org > > http://lists.zope.org/mailman/listinfo/zope > > ** No cross posts or HTML encoding! ** > > (Related lists - > > http://lists.zope.org/mailman/listinfo/zope-announce > > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Moving Z Classes around
by Michael Abbott 26 Jun '00

26 Jun '00

Having discovered that [my] Z Class is in the wrong product, I'd like to move it elsewhere. The obvious thing to do is to use Cut + Paste; unfortunately, I get: The item <my-item> does not support this operation. (The function manage_copyObjects is not happy!) I can't think of another way to move my classes without rebuilding them -- any advice?

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RE: [Zope] geting the type of an object from within dtml ??? ==> it works
by Chris McDonough 26 Jun '00

26 Jun '00

in an external method, would not this work?: def getclass(self, ob): return type(ob) Then use the getclass fn from DTML: <dtml-var "getclass(anobject)"> -----Original Message----- From: NABETH Thierry [mailto:Thierry.NABETH@insead.fr] Sent: Monday, June 26, 2000 4:11 AM To: 'zope(a)zope.org' Cc: 'ethan mindlace fremen' Subject: RE: [Zope] geting the type of an object from within dtml ??? ==> it works Hello, >> <dtml-var "meta_type"> works. Yes, it display the correct meta type. Thanks. When I had done some tests, I forgot to set the meta_type field, and the system was displaying the meta type of the superclass instead. (which had confused me). Note: I am still not very confortable to use the "meta_type" field to get the class name, and would rather have prefered to have the real class itself. (python type function). Thank you again for your help. Thierry Thierry Nabeth Research Fellow INSEAD CALT (the Centre for Advanced Learning Technologies) http://www.insead.fr/CALT/ -----Original Message----- From: ethan mindlace fremen [mailto:mindlace@digicool.com] Sent: Monday, June 26, 2000 3:43 AM To: Thierry Nabeth Cc: zope(a)zope.org Subject: Re: [Zope] geting the type of an object from within dtml ??? Thierry Nabeth wrote: > for instance: > <dtml-var meta_type> > does not return the correct type. <dtml-var "meta_type"> works. You can also use things like <dtml-in "objectValues(['DTML Document'])"> hope that helps, -- ethan mindlace fremen Zopatista Community Liason

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