March 2000 - Zope-Dev

Getting meta_type of object using ZPublisher.Client
by Itamar Shtull-Trauring 02 Mar '00

02 Mar '00

I've started working on a GUI frontend for load_site, and I need a way to find out the meta_type of Zope objects I'm listing. I'm using ZPublisher.Client, so I'm limited in what I have access to. getProperty does not work, and I can't think of any other way to access it. Any ideas? -- -= This is NOT a pyramid scheme =- The SNAFU Principle: True communication is possible only between equals Itamar S.T. itamars(a)ibm.net

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Version Control
by Saravanan Bellan 02 Mar '00

02 Mar '00

I'm looking at ZOPE to be used to act a version control for some documents. I have used the Version object in Zope but unable to satisfy my requirements. Couple of questions regarding that, 1) Does a new Version object needs to be created, everytime a change has to be made? 2) How can I list all the version changes undergone by a zope object? 3) Can I view a previous version of a document without undoing to that version. Even if ZOPE does not provide these functionalities directly, please provide me with the Classes and Modules which should be extended. Thanks in advance.

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Re: [Zope-dev] DISCUSS: Moving CVS repository
by J C Lawrence 02 Mar '00

02 Mar '00

On Mon, 28 Feb 2000 07:49:06 +0000 Robin Becker <robin(a)jessikat.demon.co.uk> wrote: > ... Sourceforge seems to be a victim of its own success. It's > often too slow to use from this side of the ocean as timeouts > occur somewhere along the line and shut me down. I guess that must > be due to the heavy load. SoureForge is hosted at Above.Net, a tier 1 ISP that is one hop from MAE West, and is multiply connected with an almost staggering bandwith as you can see here: http://www.above.net/network/network.html I also know the hardware and software at SF fairly well (I used to work at VA right next to the SourceForge guys (the called "Cold Storage")). You're not running into load problems. See the following for hardware specs: http://sourceforge.net/docs/site/hardware.php I suspect your performance problems are due to intercontinental bandwidth, not SourceForge directly. -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=--

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__ac_permissions__ confusion
by Dyon Balding 02 Mar '00

02 Mar '00

hiya, i'm working on a python product for zope, but running into some confusion with permissions. one of the entries in my __ac_permissions__ for my base python class is: ('Search Etailer Shop', ['productSearch'], ['Anonymous', 'Manager']), which i had hoped would allow anonymous clients to access the productSearch method. it still however prompts for a username/password when i first try to access the method. if i go into the security management interface of the instance of that product and without changing any settings hit 'Change', the permissions work as expected: anonymous can view the method. my class inherits from Folder which inherits from RoleManager. what am i missing? i've had a look through ZCatalog, which appears to do exactly the same for the 'Search ZCatalog' permission. thanks -d -- Adroit | Dyon Balding dyon(a)adroitnet.com.au Internet | http://www.adroitnet.com.au/ Solutions | work: +613 98888522, mobile: +61 0414992604

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Any big fish use zope?
by Jin Woo Joo 02 Mar '00

02 Mar '00

I'm trying to sell a zope based solution to my organization for use in an enterprise production environment. I need to convince everyone else of zope's robustness and scalability. I have three questions: 1.) Do any big important companies use zope? This can impress the decision makers. 2.) Does anyone know of any good performance/reliability statistics for a solution using zope with apache? 3.) Can anyone tell me why I DON'T want to use zope for an production enterprise environment? Thanks a bunch, jin __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

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Re: [Zope-dev] Test to see if an item is a list
by Jason Spisak 02 Mar '00

02 Mar '00

Thanks to everyone who helped out on list checking question. I have put up a How-To on Wizards that covers what I was trying to accomplish. http://www.zope.org/Members/jspisak/wizard_keys Thanks again, Jason Spisak CIO HireTechs.com 6151 West Century Boulevard Suite 900 Los Angeles, CA 90045 P. 310.665.3444 F. 310.665.3544 Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.

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Need help getting dtml-in tag info into external function
by Adam Pawliuk 01 Mar '00

01 Mar '00

HI, I'm new to the Zope world and have a question regarding how to pass variables available in the dtml-in tag into an external function. Ideally I want to be able to pass data such as the summary statistics ( i.e. count-nnn, min-nnn, etc ), and item ( i.e. sequence-item, etc ), and batch processing info ( sequence query, etc) into an external function. For example: <dtml-in findUsers size=50 start=query_start> Output: <dtml-var "anExternalFunction( <dtml-var sequence-item> )"> </dtml-in> Although the code above does not seem to work? How can I get at this data? Thanks in advance! Adam

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Re: [Zope-dev] Manipulating Meta-Type Global Add list on per-instance basis
by Josh Zeidner 01 Mar '00

01 Mar '00

Hi Tres, I Am currently using the scheme that I explained in previous postings in an ZClass derived from Object mangager. However, I am facing one small problem. If the ZClass is defined to have *NO* allowable subobjects, adding any meta-types through my code has no effect. If the ZClass is defined to have at least one allowable sub-type, then everything behaves properly. It is my contention that when the first Meta-Type is added through the "subobjects" tag, something else is happening that I am not reproducing in my code, so... 1) Do you think this assumption is correct? 2) What is it that I am missing from my code? thanks for all the help... Josh Zeidner >Josh Zeidner wrote: > > > > Hmm... possibly I did not explain my needs : > > > > What I need to do is manipulate the attribute of a "folderish" object >( > > ie. an object that can contain other objects ) that determines what >objects > > are allowed to be contained by my object. I need to do this at > > instantiation time , *NOT* definition time. > >That is what I was targeting -- I guess my implementation wasn't limpidly >transparent. > > > > > I seemed to have accomplished this by manipulating the "meta_types" > > attribute... but is this a valid way to attain this behavior? > >That is a more straightforward option than I proposed below -- my code >_filters_ >the available meta_types based on a tokens/list instance property -- the >catch >is that you have to replace the standard "contents" view in order to get my >code >used (I am not really changing what _could_ be added; I merely change the >list >presented to the user.) > >Munging the meta_types attribute is actually an interesting idea -- >"normal" >Python product objects have the meta_types attribute as a class member; so >in >fact, you are "hiding" the class member when you assign to the instance >attribute. If you ever want to "recover to original," you should be able >to >just "del self.meta_types" hand have it reappear, presto-changeo. > >Glad you found a solution. > >Tres. >-- >========================================================= >Tres Seaver tseaver(a)palladion.com 713-523-6582 >Palladion Software http://www.palladion.com > >_______________________________________________ >Zope-Dev maillist - Zope-Dev(a)zope.org >http://lists.zope.org/mailman/listinfo/zope-dev >** No cross posts or HTML encoding! ** >(Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope ) > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Re: [Zope-dev] external method problems (ARGH!) - traceback
by auto44082＠hushmail.com 01 Mar '00

01 Mar '00

Here's the traceback for the error. The def in the python code is actually line 4 in the file called SmartDTML.py. It appears to be croaking on the f.write(testvar). Anyway. Error Type: TypeError Error Value: read-only buffer, instance ------------- Traceback (innermost last): File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/Zope/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: asdf) File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: uploadReplacer) File /usr/local/Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: uploadReplacer) File /usr/local/Zope/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: uploadReplacer) File /usr/local/Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: uploadReplacer) File /usr/local/Zope/lib/python/DocumentTemplate/DT_Util.py, line 335, in eval (Object: convertFile()) (Info: convertFile) File <string>, line 0, in ? File /usr/local/Zope/lib/python/Products/ExternalMethod/ExternalMethod.py, line 255, in __call__ (Object: convertFile) (Info: ((), {}, None)) File /usr/local/Zope/Extensions/SmartDTML.py, line 11, in convertFile (Object: asdf) TypeError: (see above) IMPORTANT NOTICE: If you are not using HushMail, this message could have been read easily by the many people who have access to your open personal email messages. Get your FREE, totally secure email address at http://www.hushmail.com.

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Re: [Zope-dev] Grabbing all the keys/values/trinkets from previous REQUEST
by Tres Seaver 01 Mar '00

01 Mar '00

Jason Spisak <444(a)hiretechs.com> wrote: > > I am trying to grab all the values from a previous form and include them > in the next form. > The following code works fine, but I would like to garner the trinkets > as well. Is that possible from the REQUEST.form()? If not, I think > they should marshall into their proper forms if I convert them on the > backside. But that would be a pain. > > <dtml-in "_.range(0,_.len(REQUEST.form.keys()))"> > <dtml-let a=sequence-item> > <input type="hidden" name="<dtml-var "REQUEST.form.keys()[a]">" > value="<dtml-var "REQUEST.form.values()[a]">"> > </dtml-let> > </dtml-in> I don't quite know what you mean by "trinkets". The following is a slightly cleaner cut at your code::  <dtml-in "REQUEST.form.items()"> <input type="hidden" name="&dtml-sequence-key;" value="&dtml-sequence-item;"> </dtml-in> Are "trinkets" the ":list" style names, and the original, unmangled data? I don't think there is any easy way to get access to them inside the called form. Hmmm, I'll think on it. Tres. -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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