February 2002 - Zope

Re: [Zope] timeTime() function question.
by hpinson＠indepthl.com 20 Feb '02

20 Feb '02

> > Can anyone explain the math behind the Python / Zope UTC > > timeTime() function? I need to add two weeks to a timeTime > > generated date, for post processing. Anthony Baxtor has the answer: In addition, note that the original number is a unix timestamp - seconds since 01/01/1970. So to add two weeks to it, you'd do: t + ( 2 * 7 * 24 * 60 * 60 ) Harlow Pinson Indepth Learning Email: hpinson(a)indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678

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Bug in Owned/changeOwnership method ?
by Gilles Lenfant 20 Feb '02

20 Feb '02

Hi, When trying to give (with an externat method) an authentified user the ownership of a folder and - recursively - its content, I noticed that when that folder is already owned by that user, the somefolder.changeOwnership(someuser, recursive=1) did not work on objects contained in that folder (always owned by the former owner). When reading the source (lib/python/AccessControl/Owned.py), I noticed this (lines 106...108) in changeOwnership(): old=aq_get(self, '_owner', None, 1) if old==new: return if old is UnownableOwner: return Means that if the new owner is the former owner, changeOwnership stops immediately, even if recursive=1. So I commented out line 107 (# if old==new: return) and it works. I mean the owner of the folder is changed as well as the contained objects, like stated in the method's docstring, whatever's the current folder owner. Any comment ? Is this a bug or did I miss something ? Ah yes, I run Zope 2.5.0 --Gilles

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Re: Zope on IE
by Dieter Maurer 20 Feb '02

20 Feb '02

Martin Gfeller writes: > I've had a similar IE-authentication problem only from IE 5.0 SP2. > You sure it persists with IE 6.0? I think, the IE 5.0 problem affects basic authentication (and the Zope Management Interface). At least my problem is a cookie problem. IE (5.5) seems to ignore "path=" arguments sometimes. Dieter

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another simple one
by D. Rick Anderson 20 Feb '02

20 Feb '02

I need to split a variable out into two parts. The variable looks like this: 108243-132 and I need to split it where the - is. I can do this easy enough in Perl but this Zope server happens to be on a Wintendo 2000 box and I haven't been able to get perl working correctly with Zope. Is there an easy way to split a variable with dtml? "The Zope Book" that I bought doesn't seem to cover any of this, or it does in such an obscure way that I can't find what I'm looking for. It's been a great book to start with, but I need something that's a little more in depth. I've seen a few more books on Amazon and I'm thinking about buying the Zope Bible to keep me busy until Dieter's book comes out. Does anybody have any suggestions? Rick

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Form Help
by Todd Loomis 20 Feb '02

20 Feb '02

Hi all: Problem: When a user submits a form I look in my database to if the email they enter has already been recorded. If so I want to redirect the back to the form with a inputs filled in informing them about the error. If the email has been added before recorded the data and show conformation. I can get the error to go back to the form and place inputs back in the form, however the form want submit if all is well: This is the basic code: <dtml-if submit> <dtml-in duplicate> ##CHECK FOR DUP### <dtml-if "email1==EMail"> <SCRIPT FOR=window EVENT=onload LANGUAGE="JScript"> alert("The E-Mail address you entered is already in use, please provide another."); </SCRIPT> <dtml-var form>##PULL IN FORM FILL IN INPUTS WITH IF STATMENTS## <dtml-else"> <dtml-call add> <dtml-in userid> <dtml-call status> <p>Your registration request has been submitted for review.</p> </dtml-in> </dtml-if> </dtml-in> <dtml-else> <dtml-var form>##PULL IN BLANK FORM## </dtml-if> Can this be fixed or a different way. Thanks, Todd

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inserting form value to the table
by Hamzal Kamal 20 Feb '02

20 Feb '02

Hi, I want to be able to extract the values enter through a form and store it in a dbase. thanks. kamal __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com

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ER: [Zope] Looking if a record with a given key exists in a database several times, in dtml
by Igor Leturia 20 Feb '02

20 Feb '02

Hi Steve! I've tried your suggestion (and I think I've done it correctly), but I get an error: Zope Error Zope has encountered an error while publishing this resource. Error Type: AttributeError Error Value: key Any idea? Igor Leturia >-----Jatorrizko mezua----- >Nondik: Steve Spicklemire [mailto:steve@spvi.com] >Bidalia: Igandea, 2002.eko otsailak 17 21:13 >Nora: Igor Leturia >Cc: Steve Spicklemire; zope(a)zope.org >Gaia: Re: [Zope] Looking if a record with a given key exists in a >database several times, in dtml > > >Your idea sounds reasonable.. are you asking how to implement >it, or is >there some other problem? I would think you could create a >python script >that returns a dictionary that could be used to lookup results. >Something like: > >buildCache with argument "results" > >cache_dict = {} > >for result in results: > cache_dict[result.key] = result > >return cache_dict >----------------- > >called from DTML as: > ><dtml-let theCache="buildCache(results=yourQuery())"> ><dtml-in ....> ><dtml-if "theCache.has_key(yourTestKey)"> ><dtml-let theResult="theChache[yourTestKey]"> >Do something with "theResult".. ></dtml-let> ></dtml-if> ></dtml-in> ></dtml-let> > >Does that help? >-steve > >On Sunday, February 17, 2002, at 02:42 PM, Igor Leturia wrote: > >> Hi all! >> >> I have a problem: in dtml, I have to iterate through a >very big list >> and for each item I must look if there is a record with that key in a >> database. I can't run a 'select' ZSQLMethod for each, >because it would >> take too long. What I want to do is run the 'select' >ZSQLMethod once and >> load the results in a variable (an array or dictionary) >which then will >> be faster to look up in, or look up in the results of that >query in some >> fast way. >> >> I have searched zope.org, but found nothing. Any ideas? >> >> Igor Leturia >> >> _______________________________________________ >> 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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System Error from Zope Book Example
by Dan Shafer 20 Feb '02

20 Feb '02

On page 157 of the Zope Book is an example of using an external Python script to create thumbnails of graphic images. The main makeThumbnail script works fine. Creating the Python script makeThumbnails and running it generates a System Error "bad argument to internal function." Here's the script I've written, which I am pretty sure matches the one in the book: for image in context.objectValues('Image'): if not image.hasProperty('original_id'): context.makeThumbnail(image.getId()) Here's the dump portion of the error message page:. I'd appreciate any input you have for me. I'm completely bewildered. Traceback (innermost last): File /home/dshafer/Zope-2.3.3-src/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /home/dshafer/Zope-2.3.3-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/dshafer/Zope-2.3.3-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /home/dshafer/Zope-2.3.3-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/dshafer/Zope-2.3.3-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: makeThumbnails) File /home/dshafer/Zope-2.3.3-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: makeThumbnails) File /home/dshafer/Zope-2.3.3-src/lib/python/Shared/DC/Scripts/Bindings.py, line 324, in __call__ (Object: makeThumbnails) File /home/dshafer/Zope-2.3.3-src/lib/python/Shared/DC/Scripts/Bindings.py, line 354, in _bindAndExec (Object: makeThumbnails) File /home/dshafer/Zope-2.3.3-src/lib/python/Products/PythonScripts/PythonScript.py, line 336, in _exec (Object: makeThumbnails) (Info: ({'script': <PythonScript instance at 8bb3a30>, 'context': <Folder instance at 89c6c20>, 'container': <Folder instance at 89c6c20>, 'traverse_subpath': []}, (), {}, None)) File Script (Python), line 4, in makeThumbnails (Object: ssdrawing.jpeg) File /home/dshafer/Zope-2.3.3-src/lib/python/Products/ExternalMethod/ExternalMethod.py, line 269, in __call__ (Object: makeThumbnail) (Info: (('ssdrawing.jpeg',), {}, (128,))) File /home/dshafer/Zope-2.3.3-src/Extensions/Thumbnail.py, line 16, in makeThumbnail (Object: Traversable) SystemError: (see above) -- Dan Shafer, Personal Creativity Trainer and Consultant Trained Hartman Value Profile Analyst http://www.danshafer.com/valueprofile.html

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Re: [Zope] inserting form value to the table
by H.de.Wit＠SFK.NL 20 Feb '02

20 Feb '02

>I want to be able to extract the values enter through a form and >store it in a dbase. Read Zope book chapter 12 formerly known as chapter 10: http://www.zope.org/Members/michel/ZB/RelationalDatabases.dtml Hans de Wit Stichting Farmaceutische Kengetallen Postbus 30460 2500 GL DEN HAAG Tel. 070-3737448 Fax 070-3737445

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htmllib and my little remote webcache project
by Ed Colmar 20 Feb '02

20 Feb '02

Hey all! So, I've started on my little remote webcache project. Thanks for all the suggestions and ideas. Mostly I think it'll be a fun adventure, not because it has any real practical value. I'm messing around with htmllib, to parse out the page and (hopefully) rewrite the URLs to what they should be. I'm having trouble with it though. I havent fully grasped how it works. If someone could take a quick look at my code and see if I'm doing anything obviously wrong, that would be great! Essentially it's parsing ok, but I haven't figured out how to replace values, or how to get the data back out when it's finished. =========================== class ImageParser(htmllib.HTMLParser): def __init__(self, verbose=0): self.images = [] # Make some kind of storage class to hold the new values f = formatter.NullFormatter() # Not sure what this is for htmllib.HTMLParser.__init__(self, f, verbose) # Initialize the parser def handle_image(self, src, alt, *args): """This is called everytime we get an Image throught the parse """ print "[got image] %s" % src # Yay newimageid=createId() # Get a unique id for this image self.parsedfiletemp = self.parsedfiletemp + newimagetag # move the new image data into the new file def handle_data(self, data): """This is the data between the parsed cells """ print "got data %s" % data # YAY!! self.parsedfiletemp = str(self.parsedfiletemp) + str(data) # move the data into the new file def flush(self): """ The end of the parse? """ print "[got Flush] " # YAY!! # save the data or something. +++++++++++++++++++++++ Mostly this does what it should but it gives: Error Type: IOError Error Value: [Errno 5] Input/output error File /usr/local/dc/zope/Extensions/localpagecache.py, line 72, in handle_data Is there another way that I should be keeping track of the data after it goes through the parser? THANKS! -ed-

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