May 2003 - Zope-Dev - Zope lists

security trivia
by Jamie Heilman 02 May '03

02 May '03

April has come and gone, during which, 0 security bugs were filed--or resolved. There are 16 outstanding security related issues. 15 of them are hidden, 1 is public. 2 of them are now over a year old. -- Jamie Heilman http://audible.transient.net/~jamie/ "I was in love once -- a Sinclair ZX-81. People said, "No, Holly, she's not for you." She was cheap, she was stupid and she wouldn't load -- well, not for me, anyway." -Holly

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Catalog Aware
by MidnightFears＠aol.com 02 May '03

02 May '03

I have made my top-level class CatalogAware. This class consists of hundreds of compound data elements that are not specifically declared to be CatalogAware, yet they are grouped into one index recorded for the top-level class. I know in order to get the delete, cut, copy, and paste functionality to work in reindexing items I need to override these methods. However, this has no effect on reindexing a simple compound element when it is the only item cut and pasted, deleted, etc. My question is, should I override the main functions that control these operations from the manage_main view? I have already made modifications to the presentation logic of manage_main. Is overriding the button functionality a 'smart' thing to do? I need the delete operation to perform other tasks as well, i.e. when an object of a certain meta_type is deleted, a mirrored folder structure at the root should be automatically deleted as well. thanks, stacy

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Re: [Zope-dev] Streaming Response
by Johan Carlsson [EasyPublisher] 01 May '03

01 May '03

At 14:26 2003-04-15 -0700, Brett Carter said: > > What doesn't work in IE? Am I missing something? >HTTP Push (Client Push, Client streaming, etc) is a client based protocol, >and IE browsers don't support it - they don't recognize the content type, so >they'll just pop up a 'Download this file box' Ok. > > > I tried the Python Script bellow with the same behavior in both > > IE (IE6) and Mozilla (each paragraph was written in intervals I don't > > now how to do a sleep in Python Scripts so I use a for loop > > that I trimmed to produce measurable intervals on my server > > (a rather slow machine)). > >I'm not sure what you're trying to do - most browsers require the full >content of the page to be downloaded before they display it, iirc. >-Brett Well, do they? Most browsers try to show content as fast as possible. There are even CSS-standards for making it possible to predict a tables layout ahead to be able to render it as fast as possible (before it is completely loaded). The main reason of this I guess is because people usually start reading the top of the page and showing it make it appear to load faster for the visitor. Hence, your browser/site appears faster. My tests shows that both Moz and IE shows content sent so far even if the session has not finished or the file is completely transmitted. (I got the feeling that this was the intended behavior in the original question (?)) Also interfaced gif images are shown as soon as possible, I guess movie clips and flash movies also behave that way. This could be useful for other stuff as well (except streaming large object, which should never be saved in the ZODB by the way, be cause it bloats the memory when the object is loaded. It should be stream from a file, and not by reading the entire file as most file system object product I reviewed does including LocalFS which I have made a patch for). One use would be sending response in a long-time execution of a pack or other maintenance activities. It's a great thing to see how the process get along and that it's not halted. In such a process you can't predict the Content-Length, because you don't know ahead what messages the might pop-up. So the question is what happens if the Content-Length is excluded. In my test with text/html content nothing happens and it works fine. Other content types may behave differently depending on the client. Regards, Johan Carlsson -- Easy Publisher Developers Team Johan Carlsson johanc(a)easypublisher.com Mail: Birkagatan 9 SE-113 36 Stockholm Sweden Phone +46-(0)8-31 24 94 Fax +46-(0)8-673 04 44 Mobil +46-(0)70-558 25 24 http://www.easypublisher.com

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ZCTextIndex and ZCatalog conundrum
by Chris Withers 01 May '03

01 May '03

Hi, Say I have a ZCatalog with a ZCTextIndex called 'SearchableText' and a DateIndex called dateofpublication. I do a search like: results = MyCatalog(SearchableText = search_expression, dateofpublication = search_expression2) How would I get those results sorted by the relevence returned by the ZCTextIndex? cheers, Chris

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