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Remnants of previous version of Python-based product "stuck" in Zope?
by gtk 24 Oct '99

24 Oct '99

Executive Summary: Zope and Win98 have some really, really wierd buffering problems. This one is wierd. First, I made a simple WebLog product in Python. I was pretty happy when it worked. Then I converted it to use Zope 2 style initialization. That worked too, eventually. So then I started making a Boring Product as a demonstration piece for a HowTo on Zope 2 style products. I had a few mis-starts where I left WebLog somewhere instead of Boring, but I cleaned them all out. Searching for the string "web" in my product's directory gives no results.Cool. For some reason, though, I kept getting errors like this when trying to add a Boring: Debugging Notice Zope has encountered a problem publishing your object. Cannot locate object at: http://127.0.0.1:8080/manage_addProduct/Boring/manage_addWebLog I got RID of that. There's no "web" anywhere in the bloody directory. So I tried: * delete both WebLog and Boring from Control Panel / Products. * compact the database (9.7k!) * shut down and restart Zope * go to add a Boring... Eh? The title is "Add WebLog", and indeed this manage_addProduct/Boring/boringAdd has all the content intended for weblogAdd, even after compacting the database. No wonder I got that previous error. Anyhow, next I tried: * delete both WebLog and Boring from Control Panel / Products. * compact the database (9.7k!) * remove both their directories * shut down and restart Zope * compact the database (9.7k!) * flush the cache * shut down Zope * put ONLY the Boring directory back * restart Zope * go to add a Boring... ... and I was back where we were before. Frustrating. Putting the Boring directory in another Zope instance (same version, NT instead of Win98) worked just fine. Anyhow, rebooting Win98 fixed it somehow. I'd still very much like to know what the @(*&@@ was going on, though. Regards, Garth. -- <gtk(a)well.com>

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Updating ZClass instance properties
by Alexandre Ratti 24 Oct '99

24 Oct '99

Hello, I'm trying to update the properties of a ZClass instance based on information entered in a form. The form calls a method where the updating is carried out. The updating code looks like this: <dtml-with "myObject"> <dtml-call "propertysheets.InstanceConstants.manage_changeProperties(REQUEST)"> <dtml-call reindex_object> </dtml-with> If I hard-code the id of the instance ("myObject" here), everything works fine. However, if I tried to access the object id stored in the REQUEST object, I get an error on "InstanceConstants". Here is the code: <dtml-with "REQUEST.id"> <dtml-call "propertysheets.InstanceConstants.manage_changeProperties(REQUEST)"> <dtml-call reindex_object> </dtml-with> I tried many solutions, including <dtml-with "_[REQUEST.id]">, <dtml-with REQUEST><dtml-with id>, etc. with the same results. I think I need to access the object whose name is stored in REQUEST.id. How can I do it? Thanks. Alexandre

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Re: [Zope] how to block until an image is done uploading?
by Roman Milner 24 Oct '99

24 Oct '99

>>>>> "MP" == Michel Pelletier <michel(a)digicool.com> writes: >> -----Original Message----- From: Roman Milner MP> Hmm..this is some pretty weird behavior. >> Thanks, ^Roman >> >> >> def make_pictures(self, pic_folder, id, file): >> pic_folder.manage_addImage(id + '_thumbnail', file, id + >> '_thumbnail') pic_folder.manage_addImage(id, file, id) >> self._thumbnailize(getattr(pic_folder, id + '_thumbnail')) MP> Instead of using the Zope object, why don't you create the MP> thumbnail with 'file'? Well, I figured it out. It was just my not understanding how things work. The data was getting wrapped in Pdata() because it was bigger than 1<<16. So I had to do this: def thumbnailize(self, pic_folder, emp_id): imgOBJ = getattr(pic_folder, emp_id + '_thumbnail') try: out = StringIO.StringIO() if type(imgOBJ.data) == type(''): inn = StringIO.StringIO(imgOBJ.data) else: r=[imgOBJ.data.data] next = imgOBJ.data.next while next is not None: self=next r.append(self.data) next=self.next inn = StringIO.StringIO(string.join(r,'')) im = PIL.Image.open(inn) im.thumbnail((128,128)) im.save(out, im.format) imgOBJ.update_data(out.getvalue()) except IOError: imgOBJ.update_data('') And that did the trick. I just needed to read the source a little more. Thanks for your help. ^Roman

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RE: [Zope] how to block until an image is done uploading?
by Michel Pelletier 24 Oct '99

24 Oct '99

> -----Original Message----- > From: Roman Milner [mailto:roman@speeder.com] > Sent: Saturday, October 23, 1999 5:15 PM > To: zope(a)zope.org > Subject: [Zope] how to block until an image is done uploading? > > > So, can anyone say if I have diagnosed the problem right and if so how > can I force things to wait until the upload is finished? I've tried > just using a sleep, but that didn't work. No matter how long the > sleep, I still get the error. Hmm..this is some pretty weird behavior. > > Thanks, > ^Roman > > > def make_pictures(self, pic_folder, id, file): > pic_folder.manage_addImage(id + '_thumbnail', file, > id + '_thumbnail') > pic_folder.manage_addImage(id, file, id) > self._thumbnailize(getattr(pic_folder, id + '_thumbnail')) Instead of using the Zope object, why don't you create the thumbnail with 'file'? -Michel

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RE: [Zope] Could someone translate the debugging information?
by Michel Pelletier 24 Oct '99

24 Oct '99

> -----Original Message----- > From: VanL [mailto:vel2@email.byu.edu] > Sent: Friday, October 22, 1999 6:22 PM > To: zope(a)zope.org > Subject: Re: [Zope] Could someone translate the debugging information? > > Hmm.. I tried what you said, and got the following output: > > IOError: [Errno 13] Permission denied: > '/usr/local/share/zope/var/Z2.pid' You do not hve permission to write the .pid file. Check your file permissions. This is completely unrelated to your original error. -Michel

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RE: [Zope-dev] PTK Model
by Michel Pelletier 24 Oct '99

24 Oct '99

> -----Original Message----- > From: Andrew Lahser [mailto:andrew@apl-software.com] > Sent: Sunday, October 24, 1999 2:53 AM > To: Michel Pelletier > Cc: zope(a)zope.org > Subject: Re: [Zope-dev] PTK Model > > Are you planning on having MFI or PortalObjects subclassable > by ZClasses? > ZClasses that subclass PortalObjects might participate in the > PTK system > (create, > review, reject or publish & catalog) without creating a product. Yes. > Will there be a SQL Method interface for storing PTK objects > in a RDBMS? > Or will PTK objects only be storable in the ZODB? PTK objects are only storable in the ZODB. The good news is we are elaborating relational extensions to ZODB. > For those of us that use OD, it would be useful to browse or > update your > model > directly in OD, would you consider releasing the full model > rather than the > HTML > export? What would probably be best would be to make our CVS repository public. There, you can checkout a version of our models (many of the models, including PTK, are interrelated). We also use an OD 'file based repository' so it wouldn't be feasable to deliver all of the files to you anyway, and many of the files would contain guts not pertenent to PTK. Not being the CVS guru, I can't give you a timeline. -Michel > Andrew Lahser >

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Re: [Zope] Using ZODB outside of Zope
by Jeff Rush 24 Oct '99

24 Oct '99

On Sat, 23 Oct 1999 08:55:23 +1000, gtk wrote: >I'd settle for instructions on how to install just the ZODB on a Win32 or >Unix Python instance. I've tried copying the App and ZODB directories and >the Persistence class to my Python directory, but I can't inherit from >Persistence.Persistent. You can't just install the ZODB portion of Zope. Although it is -usable- from Python programs w/o -running- Zope, you have to at least have much of Zope installed. I tried and tried to break it out when I built my Zope RPMs but could not w/o major rework of Zope. -Jeff Rush

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Re: [Zope] Creating Products in Python
by Anthony Baxter 24 Oct '99

24 Oct '99

Look on the old website (www.zope.org:8080/) - Amos posted a Product Tutorial that was enough to get me going. It was for Zope 1, but it will still work under Zope2. (although Zope2 seems to have some nicer stuff for products, the old stuff also works). Anthoyn -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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RE: [Zope] Adding IMAGE with manage_addImage is impossible :)
by Alexander Staubo 24 Oct '99

24 Oct '99

Are you specifying the encoding type? Images are binary and must be base64-encoded by the browser. (There is also a raw binary transfer method, but I forget whether it is supported by any browsers.) If you omit the encoding type, Zope will not be able to recognize its file type, and it will be handled as plaintext data. Specify the form tag thus: <form action="..." method="post" enctype="multipart/form-data"> ... </form> -- Alexander Staubo http://www.mop.no/~alex/ "QED?" said Russell. "It's Latin," said Morgan. "It means, 'So there you bastard'." --Robert Rankin, _Nostramadus Ate My Hamster_ > -----Original Message----- > From: Samu Mielonen [mailto:ex@uiah.fi] > Sent: 24. oktober 1999 12:13 > To: Zope Mailing List > Subject: [Zope] Adding IMAGE with manage_addImage is impossible :) > > > I can't add an image from a submit form using manage_addImage > regardless of whatever I do. > > Yes, I've read all the documentation (even the source code for image) > 10 times already :) > > I can only manage to save the path of my image (from my local > harddrive) > as content type text/plain when I use the manage_addImage to try > and save the submitted image (not the path). > > I do not understand what I'm doing wrong. I've tried every single > piece of code on the Zope mailing list since 1998 (from archives) > concerning manage_addImage and I can only conclude one thing: > > Adding images is way too difficult :) > > Here's what I try to do (simplified): > > within a context of a sub-sub-folder (name is, say 'xyz'): > > edit.html > ========= > > <form action=postit method=post> > <input type=file name="image1"> > <input type=submit value="Tallenna muutokset"> > </form> > > > postit > ====== > <dtml-if "image1"> > <dtml-call "manage_addImage('temp_img', REQUEST.image1, 'testing > images')"> > </dtml-if> > > > and the result is a corrupted image file of content type "text/plain" > with the size of of my image path in bytes. Both edit.html and > postit are inside the same folder and my folderish object can contain > image type sub-objects. > > What am I doing wrong? From above it seems that image1 is a > string object, but if so, then where's the uploaded file I'm > sending through the submit form? How do I reference it? Is > there any way to list all submit form property names (variables) > and their contents (values) so that I can easily debug any > problem like > this? > > Once again, all help is very much appreciated. > > Best regards, > Samu Mielonen > > PS Having browsed through all of the Zope mailing list archives I've > noticed I was alone with this problem. At least 8 other people had > the same problem as I did. How can referencing a simple image object > be so darned difficult? :) > > -- > "Our reflections on the order of society, as well as nature, are still > dominated by the Newtonian image of massive power, exerted by > sovereign > agency through the operation of central force..." -Stephen Toulmin, > "Cosmopolis" > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (Related lists - please, no cross posts or HTML encoding! > > To receive general Zope announcements, see: > http://www.zope.org/mailman/listinfo/zope-announce > > For developer-specific issues, zope-dev(a)zope.org - > http://www.zope.org/mailman/listinfo/zope-dev ) >

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Adding IMAGE with manage_addImage is impossible :)
by Samu Mielonen 24 Oct '99

24 Oct '99

I can't add an image from a submit form using manage_addImage regardless of whatever I do. Yes, I've read all the documentation (even the source code for image) 10 times already :) I can only manage to save the path of my image (from my local harddrive) as content type text/plain when I use the manage_addImage to try and save the submitted image (not the path). I do not understand what I'm doing wrong. I've tried every single piece of code on the Zope mailing list since 1998 (from archives) concerning manage_addImage and I can only conclude one thing: Adding images is way too difficult :) Here's what I try to do (simplified): within a context of a sub-sub-folder (name is, say 'xyz'): edit.html ========= <form action=postit method=post> <input type=file name="image1"> <input type=submit value="Tallenna muutokset"> </form> postit ====== <dtml-if "image1"> <dtml-call "manage_addImage('temp_img', REQUEST.image1, 'testing images')"> </dtml-if> and the result is a corrupted image file of content type "text/plain" with the size of of my image path in bytes. Both edit.html and postit are inside the same folder and my folderish object can contain image type sub-objects. What am I doing wrong? From above it seems that image1 is a string object, but if so, then where's the uploaded file I'm sending through the submit form? How do I reference it? Is there any way to list all submit form property names (variables) and their contents (values) so that I can easily debug any problem like this? Once again, all help is very much appreciated. Best regards, Samu Mielonen PS Having browsed through all of the Zope mailing list archives I've noticed I was alone with this problem. At least 8 other people had the same problem as I did. How can referencing a simple image object be so darned difficult? :) -- "Our reflections on the order of society, as well as nature, are still dominated by the Newtonian image of massive power, exerted by sovereign agency through the operation of central force..." -Stephen Toulmin, "Cosmopolis"

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