August 2000 - Zope - Zope lists

Re: [Zope] Pages Half Rendering :(
by Dieter Maurer 04 Sep '00

04 Sep '00

Hi Chris, SentChris Withers writes: > I experienced the same weird intermittent problem yesterday that I have > had on odd ocassions over the last eight months. > > Basically, Zope 2.1.6 returns only half a page. By that I mean if I view > source, the HTML just stops at some point through the page. The point > depends on the actual time, it varies... clicking reload means you get > more or less of the page than last time. > > All very odd... what makes it worse is that it happens intermittently > under certain cirumstances that I can't pin down. Months ago, I met a similar problem with Zope 2.1.6: A non-deterministic amount of image data was returned rather than the complete image. The analysis revealed a missing thread synchronization between the Zope thread producing the image data and the ZServer thread delivering this data. However, I saw this problem only together with the HTTPResponse.write (i.e. streaming output), and never when a page or image was delivered traditionally. When I reported the problem, DC immediatedly answered that the problem was already fixed in CVS: the threads were now synchronized. Maybe, you should take a 2.2 ZServer and use it with your Zope 2.1.6. I do not know, however, whether this will bring up other problems. You may also look at my ZServer patch for the above problem. It definitely is not optimal, because it does not synchronize the threads but simply prevents ZServer to store large results in a temporary file. It was this concurrent access to the temporary file that led to the data loss. With the patch, I never again had problems with ZServer 2.1.6. URL:http://www.dieter.handshake.de/pyprojects/zope/ZServer.pat Dieter

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Re: [Zope] <dtml-comment> doesn't?
by Dieter Maurer 04 Sep '00

04 Sep '00

Chris Withers writes: > Is is just me or does stuff inside a <dtml-comment> get parsed? "<dtml-comment>" must do a bit of parsing: It must at least recognized "</dtml-comment>". Maybe, it wants to recognize nested "<dtml-comment>" (probably not), then it must look at all tags. Probably, however, <dtml-comment> just uses the same parser as every other tag and simply discards its content. Then, naturally, the content of "<dtml-comment>....</dtml-comment>" must be as syntactically correct as the content of e.g. "<dtml-if>....</dtml-if>". I would expect: patches welcome. Dieter

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<dtml-comment> doesn't?
by Jerry 04 Sep '00

04 Sep '00

Chris Withers wrote: > Is is just me or does stuff inside a <dtml-comment> get parsed? <snip> > You still can't save the page 'cos the the parser throws up an error. > That seems silly to me. Anyone else agree? That, and if you can save the page, because the DTML happens to be valid, the DTML inside the comment still gets parsed. Sure, <dtml-comment> is meant for "comments", but every programmer needs to disable blocks of code to eliminate factors while debugging. We all abuse comment characters for this purpose, and it works well enough to get the job done. But in Zope it goes like so: cut the suspect block, paste it into another window (text editor), save the DTML object, test, paste back into DTML, etc. This was the last thing a colleague saw before he refused to have any more to do with Zope. Later, Jerry S.

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URL is missing up in Zope
by Stuart Foster 04 Sep '00

04 Sep '00

I've noticed that sometimes as I traverse my Zope sight the URL keeps growing.. For instance The main folder has an index_html mainfolder->index_html A subfolder doesn't mainfolder/subfolder If the index_html is accessed from the sub you get the mainfolders index_html as I expect to. However if I traverse the two folders sometimes the URL looks like mainfolder/subfolder/subfolder/subfolder/index_html Why.. Thanks

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Mime types for email attachments
by Brendon Grunewald 04 Sep '00

04 Sep '00

I am battling to find the information needed to attach word, excel, and pdf documents to an email based on the input from a form. I know that there is a howto that uses a python method, but I do not want to use this option. Where can I get the necessary mime types and structure to accomplish this? This is what I have so far:  To: <dtml-var Email_address> From: WebForm <Webmaster(a)mysite.com> Subject: Web doc request <dtml-mime type=text/plain encode=7bit> Attached is the document you requested. <dtml-boundary type=application/<dtml-var Doc_Type> disposition=attachment encode=quoted-printable> <dtml-var <dtml-var Requested_Document>> </dtml-mime>  Thanks Brendon ------------------ 70South: the No.1 source for Antarcticles. For the latest news and views on Antarctica visit : http://www.70south.com

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Re: [Zope] Objet : Re: [Zope] Searching in all field with ZCatalog
by Dieter Maurer 02 Sep '00

02 Sep '00

Francois-Regis CHALAOUX writes: > No, you asked the right question, scuse me for the error !! > I would like only one entry in the form to search in all indexed fields. This is not easy. A ZCatalog search usually combines searches to the different indexes with an "And". You want to combine them with an "Or". There is an example for this in the Advanced ZCatalog Tutorial (--> zope.org) There has recently been a discussion in this list (--> searchable archive). Apparently, there is no comprehensive solution. Dieter

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RE: [Zope] ZCatalog in 2.2.x
by Chris McDonough 02 Sep '00

02 Sep '00

This is not right, obviously. Can you rebuild your indexes (by deleting and reentering them), recatalog, and see if the problem goes away? We haven't had any colluding reports of something like this, and I'm using the 2.2.1 catalog with textindexes successfully on a customer project. > -----Original Message----- > From: Terry Kerr [mailto:terry@adroit.net] > Sent: Wednesday, August 30, 2000 3:27 AM > To: pja(a)clari.net.au; zope(a)zope.org > Subject: Re: [Zope] ZCatalog in 2.2.x > > > I am not searching from a form in that sense...I am talking > about at the python > level. > > I have self.searchResults({'description':'blah'}) where > description is meta > data in the catalog and a textindex and 'blah' is in the > Vocabulary. This > previously worked in zope2.1.6. Now in 2.2.0 and 2.2.1 it > doesn't work. The > only thing way I can get searchResults() to return a non > empty list is to search > using a Field index and a valid string to match with. > > > pja(a)clari.net.au wrote: > > > Terry Kerr <terry(a)adroit.net> said: > > > > > Hi, > > > > > > I have a python product which uses a ZCatalog and CatalogAware > > > products. The catalog has a number of Field and > TextIndex indexes. > > > Search the ZCatalog has worked fine when my product is > instantiated in > > > 2.1.6. But now when I instantiate my product in 2.2.0 or 2.2.1, > > > searching only works when I search using a field index. > Searching using > > > a textindex always results in an empty result, even tho I > can see the > > > words I am searching for in the Vocabulary! Any > suggestions? I have > > > tried reindexing, completey recreating the Zcatalog, > recreating the > > > Vobulary and reindexing, and nothing has changed the > behaviour. Are > > > textindexes simply broken? > > > > > > > > > ZCatalog seems very volatile to me! Every time I have > upgraded way back > > > from zope2.1.3, something in zcatalog has changed and > boken my product. > > > So far I have managed to find fixes, but this one has got > me baffled!! > > > > > > > My experience has been that if field indexes are > unspecified, the catalog > > will only match where those fields are empty. In other > words, by not > > specifing anything for the field indexes, you are actually > specifying that > > for a match, they need to be empty. > > To get around this, I put another method between the form > for entering what > > you wish to search for, and the method that actually > searches the form. This > > method looks at the field indexes, and if nothing has been > specified, it > > doesn't pass them on to the method that does the actual search. > > An alternative to this, is to use names for the field > indexes that aren't in > > the catalog index, and then at the start of the search > method, check those > > names, and if they have a value associated with them, add > to REQUEST what the > > names in the index are with the appropriate values. > > > > There may be a better way, I'm still pretty new to Zope and > DTML sort of > > stuff. > > > > Peter Armstrong > > -- > Terry Kerr (terry(a)adroit.net) > Adroit Internet Solutions Pty Ltd (www.adroit.net) > Phone: +613 9563 4461 > Fax: +613 9563 3856 > Mobile: +61 414 938 124 > ICQ: 79303381 > > > > > _______________________________________________ > 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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SQL Methods
by RC Compaan 02 Sep '00

02 Sep '00

I have a sql method and a dtml method calling the sql method. They live in the same folder and the dtml method's proxy roles are set. I've tried everything and Zope tells me I don't have permission to do view the sql result returned by the sql method. This worked fine in Zope 2.1.6 so I guess it has something to do with the new security model. I also have explicit ownership of all objects that I'm working with - still no luck. Any advise? Roché

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Socket.Error
by Matthias Füsting 02 Sep '00

02 Sep '00

The other day I have change my hostname. Today I have restart ZOPE and I get follow Error-Message: 2000-08-30T20:12:44 PROBLEM(100) ZServer Computing default hostname Traceback (innermost last): File "/opt/zope/2-1-6/z2.py", line 493, in ? logger_object=lg) File "/opt/zope/2-1-6/ZServer/medusa/http_server.py", line 560, in __init__ ip = socket.gethostbyname (socket.gethostname()) socket.error: host not found Is the changing of the hostname the reason for this? Thanks!

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RE: [Zope] ZCatalog in 2.2.x
by Chris McDonough 02 Sep '00

02 Sep '00

> It's be nice if ZCatalog had a good general purpose > interface, and was a > bit more robust. > (the BTree implementation which has been mentioned a few times springs > to mind here ;-) Can you be more specific? What's insufficient about the current implementation?

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