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RE: [Zope] Extending Image via ZClass
by James W. Howe 19 Jan '00

19 Jan '00

At 11:33 AM 1/19/00 -0500, you wrote: > > -----Original Message----- > > From: James W. Howe [mailto:jwh@allencreek.com > > What I don't know how to do, however, is modify the way the object > renders > > itself by default. For example, if I use the following: > > > > <dtml-var CaptionedImageObjectInstance> > > > > I get an img tag for the image associated with my object. > > What I want to be able to do is generate my own tags so as to include > caption and > > attribution information in a standard format. How can I do this? > >Overload the __str__ method. Unless there is some other product or >ZClass someone has made that allready does this, you will need to create >a Python base class and override __str__ there. After poking around, it would appear that the Renderable product does just what you describe. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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RE: [Zope] Extending Image via ZClass
by James W. Howe 19 Jan '00

19 Jan '00

At 11:33 AM 1/19/00 -0500, you wrote: > > -----Original Message----- > > From: James W. Howe [mailto:jwh@allencreek.com] > > [...] > > I get an img tag for the image associated with my object. > > What I want to > > be able to do is generate my own tags so as to include caption and > > attribution information in a standard format. How can I do this? > >Overload the __str__ method. Unless there is some other product or >ZClass someone has made that allready does this, you will need to create >a Python base class and override __str__ there. > >It's not a bad idea to have a P Base class anyway. Where is the best place to learn how to write my own Python Base class? I know the basic Python syntax for creating new subclasses, but I'm not sure how this all works in the context of Zope. For example, which directory should I put my new class file in? Should it just go in my products directory? Do I need to do anything special to make it work as a base class for a ZClass? Are there standard things which should be "imported" into my .py file to make things work with Zope? Is there a simple example of this that I could look at somewhere? Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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RE: [Zope] XML/headers
by Michel Pelletier 19 Jan '00

19 Jan '00

Use XMLDocument. http://www.zope.org/Products/XMLDocument -Michel > -----Original Message----- > From: Ulf Engstrøm [mailto:b2blink@hotmail.com] > Sent: Wednesday, January 19, 2000 11:23 AM > To: zope(a)zope.org > Subject: [Zope] XML/headers > > > Hello...:) > I've made a little py-script in Zope that is to return: > > <?xml version="1.0"?> > My xml stuff > </xml> > > However, when I have a regular return statement in the py, I'll get a > <html><head></head> > <?xml version="1.0"?> > .. > </xml> > in return. Can I get rid of the <html> stuff at the first > row? Also, can I > edit the headers sent by the server in return, they shouldn't say > type="text/html" since that's not what it is. > Hope someone can help me, would really be apprechiated :) > > Best regards > Ulf Engstrøm > ulf.engstrom(a)b2b-link.com > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > > _______________________________________________ > 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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RE: [Zope] Extending Image via ZClass
by Michel Pelletier 19 Jan '00

19 Jan '00

> -----Original Message----- > From: James W. Howe [mailto:jwh@allencreek.com] > Sent: Wednesday, January 19, 2000 11:12 AM > To: zope(a)zope.org > Subject: [Zope] Extending Image via ZClass > > > I'm working on creating an extension to Image which will > allow a person to > include caption and attribution information for an image. > I'm calling this > a CaptionedImage for lack of a better name. I've created the > ZClass and > added property sheets and defined some methods for my views. > What I don't > know how to do, however, is modify the way the object renders > itself by > default. For example, if I use the following: > > <dtml-var CaptionedImageObjectInstance> > > I get an img tag for the image associated with my object. > What I want to > be able to do is generate my own tags so as to include caption and > attribution information in a standard format. How can I do this? Overload the __str__ method. Unless there is some other product or ZClass someone has made that allready does this, you will need to create a Python base class and override __str__ there. It's not a bad idea to have a P Base class anyway. > Relatedly, does Zope support the notion of "super" in > determine which code > to evaluate. For example, in my CaptionedImage object, I > would like to > override the default behavior of view_image_or_file, but only > if caption > information was specified. If no caption information was > specified, I > would like to let the superclass version of the method be > executed. Is > there a way to do this? In Python, yes: if caption: return self.view_image_or_file() else: return Image.view_image_or_file(self) In this case, you are explicitly saying you want to use the Image base class's method. -Michel

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XML/headers
by Ulf Engstr�m 19 Jan '00

19 Jan '00

Hello...:) I've made a little py-script in Zope that is to return: <?xml version="1.0"?> My xml stuff </xml> However, when I have a regular return statement in the py, I'll get a <html><head></head> <?xml version="1.0"?> .. </xml> in return. Can I get rid of the <html> stuff at the first row? Also, can I edit the headers sent by the server in return, they shouldn't say type="text/html" since that's not what it is. Hope someone can help me, would really be apprechiated :) Best regards Ulf Engstrøm ulf.engstrom(a)b2b-link.com ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Extending Image via ZClass
by James W. Howe 19 Jan '00

19 Jan '00

I'm working on creating an extension to Image which will allow a person to include caption and attribution information for an image. I'm calling this a CaptionedImage for lack of a better name. I've created the ZClass and added property sheets and defined some methods for my views. What I don't know how to do, however, is modify the way the object renders itself by default. For example, if I use the following: <dtml-var CaptionedImageObjectInstance> I get an img tag for the image associated with my object. What I want to be able to do is generate my own tags so as to include caption and attribution information in a standard format. How can I do this? Relatedly, does Zope support the notion of "super" in determine which code to evaluate. For example, in my CaptionedImage object, I would like to override the default behavior of view_image_or_file, but only if caption information was specified. If no caption information was specified, I would like to let the superclass version of the method be executed. Is there a way to do this? Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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RE: [Zope] AW: [Zope-dev] Re: [Zope] ZCatalog Find Items broken i n ZOPE 2.1? FIXED!
by Michel Pelletier 19 Jan '00

19 Jan '00

> -----Original Message----- > From: Markus Strickler [mailto:mstrickler@gmx.de] > Sent: Wednesday, January 19, 2000 4:10 AM > To: Stephen Pitts > Cc: Jason Spisak; Brian Lloyd; zope-dev(a)zope.org; zope(a)zope.org > Subject: [Zope] AW: [Zope-dev] Re: [Zope] ZCatalog Find Items > broken in > ZOPE 2.1? FIXED! > > > Did you follow the discussion about / and id in ZCatalog? > I haven't checked whether the apply_path bug has been fixed > in the cvs as > well. This was fixed along with an earlier bug in the code. Thanks for the patch. -Michel > > I just got hit by this as well. The culprit is in line 536 of > > lib/python/Products/ZCatalog/ZCatalog.py: > > > > apply_func(ob, (apply_path+'/'+p)) > > > > If apply_path is null, then an extra '/' is prepended to p > (the object's > > path) for no apparent reason. A quick fix is to replace this with: > > > > if apply_path: > > apply_func(ob, (apply_path+'/'+p)) > > else: > > apply_func(ob, p) > > > > A patch to that effect is attached > > -- > > Stephen Pitts > > smpitts(a)midsouth.rr.com > > webmaster - http://www.mschess.org > > > > > _______________________________________________ > 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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Renaming sequence-item to sequence_item.
by Jeff K. Hoffman 19 Jan '00

19 Jan '00

I know there was some discussion a while back on the list about renaming sequence-item to sequence_item to avoid the pitfalls associated with the hyphen. I haven't seen it mentioned in a while. Were any conclusions ever come to, regarding this? If there is a reason why it shouldn't be done, would anyone like to share it? If not, I might be able to find the time to come up with the appropriate patches to 2.1.2. --Jeff --- Jeff K. Hoffman 704.849.0731 x108 Chief Technology Officer mailto:jeff@goingv.com Going Virtual, L.L.C. http://www.goingv.com/

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Where does Zope store HTTP file uploads?
by Farzad Farid 19 Jan '00

19 Jan '00

When I do a file upload to a Zope method where is the temp file stored on the server? /tmp, /var/tmp, or the directory containing Data.fs? I need to know this because the system we're setting up will receive large file uploads and I need to dimension the partitions correctly. Thanks -- Farzad FARID <farzy(a)via.ecp.fr> Ingénieur Informatique Libre Alcôve - http://www.alcove.fr/

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RE: [Zope] Where does Zope store HTTP file uploads?
by Michel Pelletier 19 Jan '00

19 Jan '00

> -----Original Message----- > From: Farzad Farid [mailto:farzy@via.ecp.fr] > Sent: Wednesday, January 19, 2000 10:26 AM > To: Zope(a)zope.org > Subject: [Zope] Where does Zope store HTTP file uploads? > > > When I do a file upload to a Zope method where is the temp file stored > on the server? /tmp, /var/tmp, or the directory containing Data.fs? Wherever the python tempfile module puts files. We don't explicitly try and handle the tmp file creation. -Michel

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