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Re: [Zope] search & edit
by Dieter Maurer 22 Feb '01

22 Feb '01

Donald Braman writes: > I'm about to start building Zope w/PostreSQL search and edit forms. As I do > much better working by example, I'm wondering if there are examples (I'm > happy to just go to the site and reveal codes to figure out what I need to > do) or instructions that I should look at before I begin (other than the Z > SQL Methods User's Guide). -Don The Zope book? Note that the concrete database is mostly irrelevant (until your SQL uses specific extensions). Dieter

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Problem with JavaScript
by César A. K. Grossmann 22 Feb '01

22 Feb '01

Hi! I'm with a strange problem. I have some client-side JavaScripts that are included when the page is renderized, as in http://www.zope.org/Members/Caseman/client_script_howto, but sometimes the page is renderized with the Javascript code in it, messing all things. When this happens, I need to use the reload function of the browser several times, until the page is correctly renderized (sometimes after the first one, sometimes, after a lot of reloads). It is a problem with my browser or something with Zope? I'm using Zope 2.2.1 (Jeff Rush RPM packages) in a Linux 2.2.14 (Conectiva Linux 5.0) TIA -- +---------------------------------+---------------------------------+ | César A. K. Grossmann | Capacitação Solidária | | ckant(a)fazenda.gov.br | http://www.uol.com.br/umminuto/ | | http://members.xoom.com/ckant/ | Clique e doe - é de graça | +---------------------------------+---------------------------------+ Chave Publica GPG: envie email para pgp-public-keys(a)keys.pgp.net com o subject "GET ckant(a)usa.net" (sem as aspas). Old age and treachery will overcome youth and skill.

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Re: [Zope] limit on the length of namespaces
by Dieter Maurer 22 Feb '01

22 Feb '01

Scott Syms writes: > I've got a graphic in a folder > > /common.global.clfheadere.graphic > > When I try to reference it from another sub-dir with > > <dtml-var "PARENTS[-1].common.global.clfheader.graphic"> > > it generates an error. But I can get a graphic from /common.graphic using > the same method. There is no limit on the number of attribute accesses! Looks like a misspelling: > /common.global.clfheadere.graphic > <dtml-var "PARENTS[-1].common.global.clfheader.graphic"> Dieter

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DCOracle and chars over 128
by Shai Berger 22 Feb '01

22 Feb '01

Hi, I have been too busy to actually read the list in the last two weeks, but I thought I'd share with you my latest finding about ZOracleDA/DCOracle: In some circumstances (we suspect the LANG setting at the time of build) it chops 128 (the most significant bit) off characters inserted into the database as strings. In our case, it turned a  (trademark) character into a  (sometimes reported as ^Y). Since the latter is not a valid character in many sets, this caused severe problems in our related systems. We also had not-so-severe problems with ® (registered trademark, I think) turning into . ("."), because the latter is a common printable. We have two very similar installations of Zope with Oracle, one of them displayed this malicious behaviour, and the other didn't. As far as we could see, the only difference between the two is that in the computer which does modify characters users get (by default) a LANG=POSIX, and on the well-behaved one LANG=en_US. Oh, of course, the details: Zope 2.2.5 binary, ZOracleDA 2.1, DCOracle 1.3.2, Oracle 8.0.5, Linux. (Please cc me on replies; as I said, I don't really read the list very attentively these days). Have fun, Shai.

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URL based access (was: [Zope] <dtml-if> question)
by Dieter Maurer 22 Feb '01

22 Feb '01

Hans de Wit writes: > .... > <dtml-let foto="'/Cis/fotos/afoto.jpg'"> > > <dtml-if expr="_.getitem('foto')"> Keep in mind: You cannot use URL-strings to access objects, neither as DTML name nor as parameter to "getitem"! In both contexts, they will be interpreted as an atomic name. Whenever you want to access an object through an URL, you will use "restrictedTraverse" (if the URL describes a physical path) or "REQUEST.resolve_url" (for virtual URL's). With these remarks, you can use: <dtml-if "_.hasattr(restrictedTraverse('/Cis/fotos'),'afoto.jpg')"> Dieter

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Re: [Zope] devel/production syncronization
by Dieter Maurer 22 Feb '01

22 Feb '01

Gary Lowder writes: > .... The ZCVSMixin might help you. Dieter

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Re: [Zope] Problem using AUTHENTICATED_USER
by Dieter Maurer 22 Feb '01

22 Feb '01

=?iso-8859-1?q?J=E9r=F4me=20Loisel?= writes: > I am somewhat unable to check whether or not the user has manager access to > some object object. The following does not work as expected: > > <dtml-if "AUTHENTICATED_USER.has_role('Manager', _.getitem('.news'))"> > <P>Blah.</P> > </dtml-if> > > Instead of getting a true result if the user has manager acces to the .news > item (a folder), I get a true result if the user has manager access to his > context. I do not understand what "his context" means. Nevertheless, I will make some remarks. Perhaps, they are of help: * "has_roles(roles,object)" will return "true", when the user globally has one of the roles in "roles" * it will return "true", when the user has one of the roles as a local role in an ancestor of "object" * There might be a bug in "AccessControl.User.User.getRolesInContext": the "__ac_local_roles__" are not looked up in the object itself but in its "aq_inner" (if it exists). I am not sure, however, whether this makes a difference, probably not. > Related question: How do I access AUTHENTICATED_USER from Python? AUTHENTICATED_USER is a REQUEST member. Depending in what kind of Python you are, you could use something like: self.REQUEST.AUTHENTICATED_USER (External Method) or context.REQUEST.AUTHENTICATED_USER (Python Script) or REQUEST.AUTHENTICATED_USER (if REQUEST passed as parameter) Dieter

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Dtml doc or Zclass? [newbie]
by Philippe J 22 Feb '01

22 Feb '01

Hello, (I'm still looking for some good docs about zope way of thinking. The zope book is great btw) Let's imagine I'd like to add a keywords property to every dtml documents I have in my site. Do I need to add some "keywords" property to each dtml document I have? Shouldn't it be better to first create a zclass based on a dtml doc with this property already defined (with default values for example), and use this in place of the standard dtml docs. This may be problem as the site would not be standard. I'd like to still have standard dtml docs with added properties. Can I create a special management screen in order to let managers create new docs and edit existing ones? Is it needed? Or am I missing something with dtml-doc? It is quite important, because I want to make the work well at the beginning, else it will be a pain to change every doc because I didn't plan enough. Sorry for the simple question, if anyone could answer and point me to the right docs... Thanks ! Philippe Jadin

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Re: [Zope] DTML and Lists
by Dieter Maurer 22 Feb '01

22 Feb '01

Leonardo Mota writes: > I'd pretty much a newbie at Zope and running into some problems. I > have to make a <dtml-tree> with it's branches being fetched from a > database, that's already done but I also need to carry a variable with > the whole hierarchy to the last leaf of the tree. Are you sure, you need this? It is somewhat against the philosophy of the tree tag. > ... > Reading <dtml-tree>'s docs I've found a list that carries what I > want, "tree-state", but I have no idea on how to access list's members > on DTML. I've tried <dtml-var tree-state[0]> with no success. "tree-state" is a sequence. Thus, in principle, you can access it with the subscription syntax. However, subscription will only work inside Python expressions. As you use it, the "[0]" will be interpreted as part of the single name "tree-state[0]". Try <dtml-var expr="_['tree-state'][0]"> Be warned however, the structure is quite complex. Personally, I was not yet able to understand it. Dieter

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ZCatalog Highlights for Zope 2.3
by Chris Withers 22 Feb '01

22 Feb '01

This documents: http://www.zope.org/Members/Caseman/ZCatalog_for_2.3 ...is really handy for finding out the cool new featrues of ZCatalog in Zope 2.3 Many thanks to Caseman :-) Chris

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