July 2000 - Zope - Zope lists

error going from 2.1.6 to 2.2b3
by Anders Holmbech Nielsen 05 Jul '00

05 Jul '00

Hi, when trying to import an object made in 2.1.6 into 2.2b3 i get this error. What could be the problem ? Error Type: AttributeError Error Value: stop_syn Traceback (innermost last): File C:\PROGRA~1\WebSite2.2\lib\python\ZPublisher\Publish.py, line 222, in publish_module File C:\PROGRA~1\WebSite2.2\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\PROGRA~1\WebSite2.2\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File C:\PROGRA~1\WebSite2.2\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\PROGRA~1\WebSite2.2\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_importObject) File C:\PROGRA~1\WebSite2.2\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_importObject) File C:\PROGRA~1\WebSite2.2\lib\python\OFS\ObjectManager.py, line 494, in manage_importObject (Object: ApplicationDefaultPermissions) File C:\PROGRA~1\WebSite2.2\lib\python\OFS\ObjectManager.py, line 260, in _setObject (Object: ApplicationDefaultPermissions) File C:\PROGRA~1\WebSite2.2\lib\python\OFS\ObjectManager.py, line 267, in manage_afterAdd (Object: ElementWithAttributes) File C:\PROGRA~1\WebSite2.2\lib\python\OFS\ObjectManager.py, line 267, in manage_afterAdd (Object: ElementWithAttributes) File C:\PROGRA~1\WebSite2.2\lib\python\Products\ZCatalog\CatalogAwareness.py, line 114, in manage_afterAdd (Object: CatalogAware) File C:\PROGRA~1\WebSite2.2\lib\python\Products\ZCatalog\CatalogAwareness.py, line 182, in index_object (Object: CatalogAware) File C:\PROGRA~1\WebSite2.2\lib\python\Products\ZCatalog\ZCatalog.py, line 377, in catalog_object (Object: ElementWithAttributes) File C:\PROGRA~1\WebSite2.2\lib\python\Products\ZCatalog\Catalog.py, line 373, in catalogObject File C:\PROGRA~1\WebSite2.2\lib\python\SearchIndex\UnTextIndex.py, line 253, in index_object File C:\PROGRA~1\WebSite2.2\lib\python\SearchIndex\Lexicon.py, line 165, in Splitter AttributeError: (see above) -- Regards ------------------------------------------------- Anders Holmbech Nielsen | Tlf: (+45) 70 22 56 00 Software Engineer | Fax: (+45) 70 22 57 00 Integrator Uniware A/S | http:/www.integrator.dk

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Re: [Zope] Problems and ponderings
by Rik Hoekstra 05 Jul '00

05 Jul '00

Woops, pressed send too soon > > >In my site I have folder with subfolders and I would like to generate > >a menu to go to those subfolders. > >What I have now is: > ><dtml-in "objectValues()"> > <dtml-var sequence-key> ></dtml-in> > >which gives emptynes.. I've tried all kinds of combinations, tricks >from the tips and howto's, but nothing. > > >[rh]First, why do you use sequence-key? Use sequence-item instead > ><dtml-in "objectValues()"> > <dtml-var sequence-item> ></dtml-in> > >second If the code is contained in a DTMLDocument (that is an object on its own, unlike DTMLMethod), you will have to add a <dtml-with "PARENTS[0]">, like so: <dtml-with "PARENTS[0]"> <dtml-in "objectValues()"> <dtml-var sequence-item> </dtml-in> </dtml-with> for a menu you'll have to add hyperlinks etc, but I'm sure that wasn't the question hth Rik

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Aquisition of objects with strange names
by Oleg Broytmann 05 Jul '00

05 Jul '00

Hello. The subject seems to be broken, or maybe I just misunderstand something. Site http://sun.med.ru/pcgi2/zope.net.ru/ has some objects with ids that contain spaces, hyphens, dots - pretty non-standard chars. In most aspects these objects behaves good, but sometimes I have problems. In the root of ZODB (ZODB, not the site) I have a folder Russian-DateTime. In the root of the site I have a header that uses the folder: <dtml-with Russian-DateTime>. The root is rendred pretty fine: http://sun.med.ru/pcgi2/zope.net.ru/ But subfolders are not rendered: http://sun.med.ru/pcgi2/zope.net.ru/Zope/ AttributeError: __call__ This happens with all such objects. I have Image rounder.gif (dot in the name). I have ZStyleSheet main.css. All these objects do not render in subfolders :( The workaround is <dtml-with "_.getitem('Russian-DateTime')"> - with this the site works as designed, all objects are rendered Ok. Anyone here can explain what is going on? Is it a bug or a feature that I do not understand? Both Zope 2.1.4 and 2.2.0b3... Oleg. (All opinions are mine and not of my employer) ---- Oleg Broytmann Foundation for Effective Policies phd(a)phd.russ.ru Programmers don't die, they just GOSUB without RETURN.

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Re: [Zope] Problems and ponderings
by Rik Hoekstra 05 Jul '00

05 Jul '00

In my site I have folder with subfolders and I would like to generate a menu to go to those subfolders. What I have now is: <dtml-in "objectValues()"> <dtml-var sequence-key> </dtml-in> which gives emptynes.. I've tried all kinds of combinations, tricks from the tips and howto's, but nothing. [rh]First, why do you use sequence-key? Use sequence-item instead <dtml-in "objectValues()"> <dtml-var sequence-item> </dtml-in> second Actually I start thinking that zope is not for me. Yes, I'm a programmer, but here and now creating websites. I want to create a website, not publish objects. An abstactionlayer between zope and python would be a good thing. (and don't tell me DTML IS an abstractionlayer. It confuses the matter, it doesn't simplify. Including perl straight into the pages would be simpler. Not to mention that Python is actually decently documented..) [rh]No one will tell you DTML is ideal,. It's meant to be a presentation language and for that it's powerful. If you want to write python inside Zope - use PythonMethods. If you really want to put perl into your webpages - there is PerlMethods coming up, that presumably can do the same as PythonMethods. Anyhow, I'm not giving up yet let's check my mental image: A zope site is an tree of objects, objects inherrit from parents. [rh]Yes, and they acquire from parents. Acquisition is a type of dynamic inheritance (how do I check if a parent exists?) so there should be a way to refere to the parent (PARENTS[]) to refer to the current object (?). [rh]current object is this() for most purposes. I do not quite get what you're aiming at. But the current object depends on the namespace and the namespace is a stack determined by parents, using acquisition. Traversing the namespace changing the current object, and so do dtml tags like dtml-in and dtml-with. The best introduction to these is probably in http://www.zope.org/Documentation/How-To/AdvancedDTML I guess there should also be a way to refer to objects in an other branch of the tree (I would like to have a tools folder which is also searched when asking for a DTML-methode) [rh]This can be accomplished (simply) by using <dtml-with "<yourobject>.<yoursubobject>"> your code </dtml-with> or more directly <dtml-var "<yourfolder>.<theobjectyouwant>()"> But there are many other methods of doing this in more sophisticated ways, depending on your needs Is my mental image to limited? Does it need adjusting? [rh]it may need adjusting in your appreciation of Zope flexibility Rik

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Re: [Zope] Authentication, Anonymous and Public
by Dieter Maurer 05 Jul '00

05 Jul '00

Capesius, Alan writes: > I'm running into a problem after implementing jcNTUserFolder in a > subfolder of my site. Users can access the root level or particular > subfolders anonymously. Once a user accesses the protected > NTUserFolder, the credentials are saved in the browser. If the user > then returns to the anonymous area, they can no longer access th > folder due to the browser credentials. > > Does Zope have a mechanism equivalent to the Novell NDS Public access? > that is to say: > > Anonymous = not authenticated. > Everyone = authenticated users (that are members of the group) > Public = authenticated and anonymous users. In Zope, each user has a set of roles. Any user has the "Anonymous" role. Log-in users may have additional roles. Thus, what you see, should not happen. Dieter

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Re: [Zope] [newbie] cgi-tasks howto? stupid question
by Rik Hoekstra 05 Jul '00

05 Jul '00

>i tried out this but this isnt working out for me. can you point out the >error. > >my index_html file is ><dtml-var standard_html_header> ><FORM method=post action=http://localhost:8080/3inet/print> >Enter name: <INPUT type=text name=valname><BR> > ><INPUT type=submit> ></FORM> ><dtml-var standard_html_footer> > > >the print file is ><dtml-var standard_html_header> ><h2> ><dtml-var valname> ></h2> ><dtml-var standard_html_footer> > > >when i submit the form the print page is outputted but the value of the >textbox(valname) is not outputted. whats wrong? Um, perhaps a stupid question, but since you are talking about files - is this a Zope object that is in the Zope object database or is it a file that is on your file system? If the last, it will not work. Zope keeps it's objects (files) in it's own database, the ZODB. It is <zopehome>/var/data.fs. You can't read it directly, it is an object database > >another thing i havent understood is that zope.org is running on zope, >then why they donot have url based on 8080. if they are using pcgi then >the url must have been http://zope.org/zope.cgi/index_html isnt this so? No, apache let's you circumvent this. >i also want my url to be simply on http://localhost, what do i need to do >for this. Zope has it's built in webserver, called ZServer. It will run on any port, as long as you have the right privileges. If you want to change the port, change <zopehome>/z2.py It is heavily commented. Look for the http port section, it shouldn't be a problem. Rik

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dtml-var null
by Clinton Roy 05 Jul '00

05 Jul '00

the following: <dtml-var notes null=" "> just doesn't seem to be working. any hints?

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Product doesn't appear in Add List
by sakurai 05 Jul '00

05 Jul '00

Hi, I'm a beginner of Zope. I read Documentation(ZCMG) and trying to create a sample Zope Product, just the same thing as in that tutorial. I did as follows: 1. create Product Distribution Archive (tgz file) in Distribution tab. 2. delete original one (with open-box icon). 3. shutdown zope. 4. re-install it (by extracting tgz in zope directory). 5. restart zope. As a result, it appears in Control_Panel/Products directory (with normal close-box icon), but doesn't appear in the 'Available Objects' Add List. I didn't forget to create factory object. I'm using Zope 2.1.6. Please help. Thanks.

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Re: [Zope] Fun with Trees
by Dieter Maurer 05 Jul '00

05 Jul '00

Charlie Wilkinson writes: > I'm trying to use dtml-tree to create a selective menu of objects based > on whether or not the object has an "add_to_menu" property. I've pretty > much figured out that I need a wrapper around objectValues that will > filter out the objects that don't have the "add_to_menu" property. > This wrapper would be called with dtml-tree's "branches" attribute. > I'm trying to do this wrapper in a DTML method and I've gotten all the > way to where I have to return a list of "actual objects", so says the > DTML Quick Reference. > > Is there someone who could 'splain to me how to build a list of objects > in DTMLese? > > Here's what I have so far (obviously not working): > > <dtml-call "REQUEST.set('ret', '')"> > <dtml-in "objectValues()" sort=id> > <dtml-if "_.has_key('add_to_menu')"> > <dtml-call "REQUEST.set('ret', ret + ' ' + _['sequence-item'])"> > </dtml-if> > </dtml-in> > <dtml-return "_.string.split(ret)"> That's perfect. Almost surely, your problem results from the fact that "dtml-tree" does not expect "branches" to be a DTML method and does not pass a namespace to it. I do not know, how you can avoid this (other than changing the "dtml-tree" code. Dieter

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RE: [Zope] What is the best way to do this?
by Jens Vagelpohl 05 Jul '00

05 Jul '00

alex, IMHO when you try to do stuff using ZClasses and DTML and it starts looking too complex to you then it is. DTML is made for presentation, not for driving an application. a very sound architectural approach, and one that scales very well as your site and organzation grows, is a base of python-based zope products with ZClasses that derive from them. all the logic happens in the python product and all presentation is in the derived ZClasses. this will not only speed up your code but it will also make it easy to control presentation because that is stored in the ZODB and can be manipulated through the web. the only drawback is that a change in the underlying python product code requires you to restart zope. if you're like me and can't stand messy and kludgy code you will appreciate the extra effort spent on writing a real python zope product. for starters look at "How to create a Boring Product" at http://www.zope.org/Members/gtk/Boring/HowTo-Boring . this will explain some of the structure that is needed for a python class to become a "zope product". another guide is at http://www.zope.org/Members/Zen/howto/ProductAPITutorial . for the latest changes that need to be considered when writing a product for zope 2.2 read brian's guide at http://www.zope.org/Documentation/How-To/ProductAuthorUpdateGuide . a good deal of knowledge can be gained from simply looking at the code of products available in your zope install under <zope>/lib/python/Products. jens ---- Jens Vagelpohl jens(a)digicool.com Software Engineer www.digicool.com Digital Creations (888) 344-4332 Got Zope? ---- > -----Original Message----- > From: agould(a)ponzi.oit.umass.edu [mailto:agould@ponzi.oit.umass.edu]On > Behalf Of Alex Gould > Sent: Tuesday, July 04, 2000 21:11 > To: zope(a)zope.org > Subject: [Zope] What is the best way to do this? > > > Hello zope-masters, I humbly ask your advice on several > matters. I am > making an internal website for a statewide student activist group with > many members. It will hopefully feature discussion boards, a contact > database, and a calendar of events. I want to make the users of the > site part of the contact database, so that an entry in the database (a > name, phone number, etc.) can be easily "promoted" into a user with a > password and varying priveliges based on his/her role (volunteer, core > member, board chair, etc.) > Another feature I want to include is regional > specialization - each > contact/user, calendar event, and forum has an associated "region" - > statewide or a specific campus or something in between. That way a > user's default view of the statewide calendar won't be cluttered by > irrelevant events, and a search through the contact database would by > default only return results pertaining to the user's region. > I've tried building some custom zClasses but when > things start to get > complex the dtml code gets really messy, so I think I should use > external methods to do most of the work. > Basically I'd appreciate any advice on how to put these > ideas into code > or pointers to relevant documentation. I don't mean to sound like > "here's my very complicated plan, write the code for me", I just need > some tips on how to get started. Thanks. > > > -------------- > Building highways to reduce traffic is like > loosening your belt to reduce obesity. >

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