June 2000 - Zope - Zope lists

get 2 properties at the same time
by Marcus Mendes 30 Jun '00

30 Jun '00

Hello, I need get 2 properties of Zclass at the same time. I´m using in my form : <td><select name="region"> <dtml-in "Locality.objectValues(['Locality']) "> <option value="<dtml-var REGION>"><dtml-var title> </dtml-in> <option selected> </select></td> I need get another property, for example MASTER_REGION, in this moment. How can I to do it? (is urgent!) Thanks in advance, Marcus Mendes

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queries and tiny tables and python methods... oh my!
by Timothy Wilson 30 Jun '00

30 Jun '00

Hi everyone, (Please excuse the vague Wizard of Oz reference in the sub., but my brain may be imploding. :-) I'm trying to merge several type of Zope objects, and I'm getting lots of little errors. I wonder if someone could suggest where my problem lies. 1. I'm querying our LDAP server to retrieve the records for a given person in the directory. No problem there. 2. I'm parsing one of the entries in the LDAP directory to retrieve the user's location. Python method code is simple. 3. I'm using a Tiny Table to look up a value for one of the parsed strings. Easy. The problem is hooking them all together. Passing the query to a PythonMethod is throwing up the following error: Error Type: TypeError Error Value: argument l: expected read-only character buffer, instance found (BTW, Netscape on Windows doesn't product a traceback, but Netscape on Linux does.)  parseLocation is a Python Method which takes 1 argument (a string) and returns the first element of the list that's formed by splitting the string. That first element is a two-letter code that's looked up in a Tiny Table called buildingCodes which returns the full name of the building. OK, it looks to my relatively inexperienced eyes that the Python Method isn't getting an argument of the type is expects. Here's the code for parseLocation ('l' is the argument): x = string.split(l, '_') return x[0] (BTW, changing it to x = string.split(`l`, '_') eliminates the error, but nothing is rendered. qry_person is an ZLDAP filter method that takes one argument (uid). The original dtml to display this mess looks like: <dtml-call "REQUEST.set('user_id', user_id)"> <dtml-in "qry_person(uid = user_id)"><br> <dtml-in "buildingCodes(parseLocation(l))"> <dtml-var building><br> # 'building' comes from the Tiny Table </dtml-in> </dtml-in> I'd appreciate it if anyone has any ideas about this. I'm probably making the whole thing too complicated, but for reasons of code reuse, this seemed like the most efficient approach. -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.k12.mn.us/ | http://www.zope.org/ W. St. Paul, MN | | http://slashdot.org/ wilson(a)visi.com | <dtml-var pithy_quote> | http://linux.com/

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How do you use acquisition when instantiating an object via a REQUEST.set
by Corey Zimmet 30 Jun '00

30 Jun '00

I am a relatively new Zope user and I have a simple python Class in a python product such as: class Item(Acquisition.Implicit): # Just a simple item class def __init__(self, id): self.id=id If I instantiate the object in DTML with somthing like this: <dtml-call "REQUEST.set('item',Item.Item('someid'))"> How can I make the object acquire the current context? I do not want the object to be added to any container other than the REQUEST. Thanks, Corey

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SV: [Zope] urlquote?
by Magnus Heino (Rivermen) 30 Jun '00

30 Jun '00

> in module 'urllib' > > quote (string[, safe]) > Replace special characters in string using the "%xx" escape. Doesn't work like that here. >>> import urllib >>> urllib.quote('lösning') 'l\366sning' Am I doing anything wrong? :-P /Magnus

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RE: [Zope] Kid clicking and Zope thread deadlock
by Brian Lloyd 30 Jun '00

30 Jun '00

> "Kid clicking" is a technical term used in multimedia game programs, > referring to firing multiple click events quickly. The most > scary part is > that under intense clicking, a multi-threaded program would go into > dead-lock. > > I have a Zope application running. When I kid-click on one button, it > actually locks Zope up. This error does not happen when I run Zope in > single-thread mode. So, for the bug seems to come from Zope thread > dead-locking. > > <snip> > > My Zope is 2.1.6. More info: it happens both with Netscape > and IE. More > info: when kid clicking on the webpage, actual requests are > sent to the Zope > server, I see from the terminal 4 lines about > > 2000-06-30T00:29:43 PROBLEM(100) ZSybaseDA Changed database > context to > 'master'. > Changed database context to 'mydatabase'. > > and it then goes into deadlock. Not sure whether it's Sybase or Zope > problem. The quick way to determine this: install a fresh Zope without SybaseDA installed and see if you can reproduce the kid-clicking behavior. Another thing potentially to look at: there is problem with Sybase connections that I have run into before where if you have a request that runs a transactional query, then a non- transactional query, then trys another transactional query you get a hang :( I don't know if this could be the case here, but if so you might want to look here for more info: http://classic.zope.org:8080/Collector/1059/view Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Re: [Zope] ZCatalog Search Q
by Chris Withers 30 Jun '00

30 Jun '00

Leonard Chan wrote: > > This is supposedly a 'bad' thing to do but there's nothing better right now... > > Why is this a 'bad' thing? 'Cause it requires loading the whole object? Nope, 'cos it doesn't work with anything that plays with traversal, like SiteAccess. Something better should be coming along in Zope 2.2 but it probably won't be documented until Zope 3 :( > Yes. Our situation is like this. We have a bunch of objects (ZClass) in > various folders, and we would like to provide a dynamic search facility > for the users (in addition to traversing folders and sub-folders, which > is not a problem). > > The object has a description field, which is a few lines of text (there > is a long description field, which varies from zero length to up to 10 > times the size of the desc). > > We need to display the description field (but not the long desc) on the > search results, so to implement this, we can either stick the desc in > the catalog meta-table, or use getobject as you suggested to retrieve > the object (and hence the required attributes). > > Initially, I'm a bit worried about sticking the desc in the meta-table > 'cause it's relatively big compared to the other attributes. Maybe it's > still cheaper than getting the object (which includes the much bigger > long desc field) every time? Seen similar situation before? Any help > is appreciated. Well, given that it's going to be easier and cleaner for you to put it in the metadata table I'd d othat. I can really see any problems with this. I'm sure someone else on the list will comment if they know better... cheers, Chris

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Re: Question (was on zope-ptk)
by Steve Alexander 30 Jun '00

30 Jun '00

Jonathan Desp wrote: > > > > Anyone know another way to upload 900 files in one shot ? > > > > What kind of files are they? What do you want to do with them once > > they're in Zope? > > they are all in .html, I want to publish it inside www.atomasoft.com, as > a website. You should be able to simply FTP these files into Zope. Have you tried this? -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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urlquote?
by Magnus Heino (Rivermen) 30 Jun '00

30 Jun '00

Hi. Is there a method available somewhere in python to urlquote(?) a string. Example: lösning -> l%f6sning /Magnus

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FOR loops?
by Andy Gates 30 Jun '00

30 Jun '00

This ought to be easy: <dtml-in> through a list of entries. Each entry has a string and a number which indicates its level of indentation, so "Root",0; "Main",1; "Sub",2 and so on. Presenting these in a SELECT input I want to show the indentation so it's easy to see and use. Obvious answer is to use   characters to pad the values thus: <select> <dtml-in sequence> <option value="whatever"> <for loop=0 to entry-indent-value>   </for> <entry-string-value> </dtml-in> </select> So where does Zope hide its FOR loop? Can't find the bugger anywhere! ---------------------- Andy Gates, Learning and Research Technology Andy.Gates(a)bristol.ac.uk - ICQ#74362415

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ZCatalog Search Q
by Leonard Chan 30 Jun '00

30 Jun '00

Hi, I'm trying to search a catalog and return a list of hits, and here is a code fragment: <dtml-in Catalog> <a href="<dtml-var "Catalog.getpath(data_record_id_)">"> <dtml-var title> </a> <dtml-var id><br> </dtml-in> This works ok, however, I understand that the catalog search does not actually return object references to the actual objects catalogued. I'd like to include some attributes from the actual objects (maybe by accessing the actual object via id, etc?) in the result list. Can someone let me know how to do that? I can of course include those attributes in the catalogue meta table so they would be returned with the search results, but I don't really want to do that unless there is no other way. Thanks for any info/help. Rgds Len

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