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Re: [Zope] Images slow rendering problem
by Oliver Bleutgen 05 Sep '00

05 Sep '00

> Hi, > I already posted this message several monthes ago, expecting a new Zope > version would fix the problem, but... > I have some images on my pages (let's say 10 - not a lot), rendered > either by dtml-var or a manual <IMG> tag. > When I render the page on some of my LAN boxes (especially with IE), > some images doesn't load at the first time. I need to reload the page to > make them appear. When I monkeyly hit the 'F5' key, some images do not > show again. Argl. Anoying.... > The problem is worst ever through Internet. Perhaps not the failure you see, but as you mention IE, there is at least one really annoying bug in IE 4 (all versions except SP2) and IE 5 (except 5.01). This may bite people trying to integrate zope into other webservers using redirects. http://support.microsoft.com/support/kb/articles/Q193/4/89.ASP?LN=EN-US&SD=… You might want to check what versions of IE you use. A last resort may be to use a sniffer to capture the http traffic for later analysis. Cheers, oliver

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DTML horror
by Nick Trout 05 Sep '00

05 Sep '00

DTML is pretty horrible. Does anyone have any solutions to allow DTML methods to be generated using a more Pythonesque interface? It seems to me that DTML is a bit of a shoddy half way house between HTML and Python. Cheers, Nick.

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ZODB efficiency
by Nick Trout 05 Sep '00

05 Sep '00

Is using ZODB efficient? Is it better to use ZODB than an external database? What are the benefits of using it? CHeers, Nick

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Renderable Base Class ???
by Brian Withun 05 Sep '00

05 Sep '00

I'd read some discussion dating back to last year about a the concept of a Renderable Base ZClass; something that would allow a ZClass to be called like <dtml-var "myClassInstance"> Have there been any developments along this line, or any plans to incorporate the idea into Zope? I find myself in need of this functionality. Also, I did notice a product on Zope.org which claims to be a renderable base class, but it's a tgz and doesn't seem to uncompress for me on WinNT using WinZip7. Does anybody have a copy of this (working) that they might export and send? (It's a very small TGZ product and hopefully a very small zexp) ------------ Brian Withun

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Java applet with inner classes causing probs in Zope
by Eric L. Walstad 05 Sep '00

05 Sep '00

Hello all, The problem is that inner classes have names like "Parent$Inner.class" I'm unable to create a Zope file object with a name that includes the dollar sign. However, the applet won't function without it. Has any one overcome this? Yes, the applet functions properly when served from apache (but I need to serve it from Zope). Please respond directly to me and mailing list as I am not currently on the mailing list. Thanks, Eric.

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Stumped: Python in operator seems to not work
by Andy Dustman 05 Sep '00

05 Sep '00

(Please CC: me on responses.) I have a DTML Method (build_navigation_bar) that is called from standard_html_header to (surprise) build a navigation bar. standard_html_header invokes it thusly: <dtml-var "build_navigation_sidebar(start=_['foo'], parents=PARENTS)"> where foo is the top of the tree; standard_html_header can be acquired further down in the tree. parents is initialized to PARENTS, which is the list of parents of the original object. build_navigation_bar invokes itself on Folders that it finds that are among the parents of the original object. I.e., this is somewhat like a tree, but we only want to expand the branch we're in. This is done with: <dtml-in "start.objectValues(['Folder'])" sort=public skip_unauthorized> <dtml-with sequence-item> <dtml-if "hasProperty('public') and public"> <A HREF="<dtml-var absolute_url>"><dtml-var title_or_id></A><BR>  <dtml-if "this() in parents">  <dtml-var "build_navigation_sidebar(start=this(), parents=parents)"> </dtml-if> </dtml-if> </dtml-with> </dtml-in> Unfortunately, this doesn't work: The conditional is always false. Some of the debugging output:   Note that in the first line, the expression correctly evaluates to 0, while the second line incorrectly evaluates to 0. Using <dtml-var "this()"> should not, and does not, make a difference. Initializing parents with a copy of PARENTS (PARENTS[:]) does not make a difference, as expected. Direct comparisons, i.e. <dtml-var "this() is parents[0]"> (or ==) also fail. What did I overlook, because this seems like it ought to work. -- andy dustman | programmer/analyst | comstar.net, inc. telephone: 770.485.6025 / 706.549.7689 | icq: 32922760 | pgp: 0xc72f3f1d "Therefore, sweet knights, if you may doubt your strength or courage, come no further, for death awaits you all, with nasty, big, pointy teeth!"

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ANN: Zope core session tracking proposal
by Chris McDonough 05 Sep '00

05 Sep '00

If you're interested in seeing session-tracking implemented in the Zope core, please review the proposal at http://dev.zope.org/Wikis/DevSite/Proposals/CoreSessionTracking and provide comments on the referenced discussion page. Thanks! Chris McDonough Digital Creations, Publishers of Zope http://www.zope.org

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Date-Time or SQL (Oracle) time.. or...
by Chris Beaumont 05 Sep '00

05 Sep '00

Hello, Another newbie question that I hope doesn't sound too stupid.. (I guess I already know the answer to that question.. it DOES... *sheepish grin*) Have a little patience with me, I'm learning things and having fun, so in a month or three... *sigh* Anyway.... I have some questions about the best way to update time fields on my Zope site. This issue has been "the bane of my life" for the past three days.....*grin* Basically these are fields in records describing events (programs and workshops, and soon, talks) which I am listing on my site.. The dates are in an Oracle 7 table. I'm using DCOracle and the Zope OracleDA to interact with these data sources from Zope. Quite simply, I'm confused.. I've been following to the letter the ZSQL Methods Guide, but I'm completely missing something important about the relationship between Zope date-time and Oracle dates. I've scoured the lists and haven't found anything there either..How-tos deal with general date-time issues.. yes.. but this is on the border .. perhaps.. DateTime vs. Oracle SQL. *pause for dramatic effect* The How-tos I've seen don't answer several (basic) questions.. Note: So far I have just been working with dates, not hours, minutes, etc. I've noticed that if I insert data using Oracle's default and not very useful "native" format ie. 01-Jan-00 things work on the insert side. Sort-of... I've also successfully used "TO_DATE" to insert data in SQLMethods.. in forms I built myself.. But then using the exact same code in another (originally ZNolk-generated, but much edited..) form and SQL method.. no luck.. It's usually not even making it out of Zope's error check routines.. Perhaps this is a clue.. I've noticed that when displaying the results of a query, Zope translates Oracle's outputted dates into Date-Time. Does Zope also do translation on the input end? And if so, what do I need to do to be able to consistantly input dates in MM/DD/YYYY without problems.. I've been having major problems with <dtml-sqlvar> choking on dates and I don't have the foggiest idea what I am doing wrong. Do I need to put more effort into learning TO_DATE and TO_CHAR (Oracle-isms) better or am I totally barking up the wrong tree.. (i.e. Zope translates everything into Date-Time) What is the best way to intercept SQL so I can see what is being sent to Oracle..? (I followed the suggestions in the How-to on this subject and Zope threw an error) I'm sorry this sounds so stupid, but I have been running into a brick wall..so to speak.. And in my scheme of things, dates, and the simple modification of them.. is really important... Thank you, Chris

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Folder and SQL security
by George 05 Sep '00

05 Sep '00

Security in ZOPE is very puzzling. If I have certain rules set for the root folder, can I set something different for the sub folders? Any changes seem to have no effect at all. I am especially wandering about setting for anonymous user. I'd like to give them only 'viewing' privilege but that does not work. The site is not functional at all and asks for the password even for the viewing. Then I enable 'access the content' and the site works as long as I do not try to use sql. When I how ever enable 'use sql methods' permission they can access my database, delete and add entries to it. What do I have to do to allow anonymous viewers to just view the site (keep in mind that I am using a couple of zsql methods for embedding of data in my html) I also want to have one of the sub folders not accessible to any one but me. Can you help anyone? Regards, George

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Render the number of occurrence in a batch
by Francois-Regis CHALAOUX 05 Sep '00

05 Sep '00

Hi, How to render the total number of result coming from the search in a ZCatalog even if the batch will be render in several sequences ? Howto render XXXX : "Your search contain XXXX results" FR.

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