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Accessing arbitrary Python objects from ZPT
by Michael Lausch 30 Mar '02

30 Mar '02

how to make attributes of arbitrary complex python objects (assume you don't have access to the python source code of these objects) accessible from zope, without reverting to tricks like marshalling the objects into dictionaries? will a deeper look into the ZSQL source code help me mastering this problem? i have some functions from a python application which give back objects as their return value. i want to access attributes from these objects from ZPT. I'm calling the functions via external methods which return the objects. it is also possible to display the objects themselves (their __str__ or __repr__ function is called). when i want to access a member variable of such an object, zope wants me to authenticate again. i know, this has something to do with security an i also read the appropriate chapter in the zope developer guide, but i don't want to implement a container for each class which transforms objects into dictionaries and perhaps back again. BTW persistance is not needed, it is even a thing i never want for these type of objects. -- Michael Lausch See my web page <http://www.lausch.at/> or query PGP key server for PGP key. "Reality is that which, when you stop believing in it, doesn't go away". -- Philip K. Dick

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Mozilla + TAL problems
by Mike Barrett 30 Mar '02

30 Mar '02

Has anyone else had a problem managing View Templates in zope with Mozilla .99 ? I get the following error when I do (from the html source): Traceback (innermost last): File /opt/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /opt/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 114, in publish File /opt/Zope-2.5.0/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook (Object: standard_page_template) File /opt/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 98, in publish File /opt/Zope-2.5.0/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/Shared/DC/Scripts/Bindings.py, line 252, in __call__ (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/Shared/DC/Scripts/Bindings.py, line 283, in _bindAndExec (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/Products/PageTemplates/PageTemplateFile.py, line 94, in _exec (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/Products/PageTemplates/PageTemplate.py, line 86, in pt_render (Object: pt_editForm) File /opt/Zope-2.5.0/lib/python/TAL/TALInterpreter.py, line 158, in __call__ File /opt/Zope-2.5.0/lib/python/TAL/TALInterpreter.py, line 191, in interpret File /opt/Zope-2.5.0/lib/python/TAL/TALInterpreter.py, line 432, in do_insertStructure_tal File /opt/Zope-2.5.0/lib/python/Products/PageTemplates/TALES.py, line 247, in evaluate File /opt/Zope-2.5.0/lib/python/Products/PageTemplates/Expressions.py, line 189, in __call__ File /opt/Zope-2.5.0/lib/python/Products/PageTemplates/Expressions.py, line 179, in _eval Undefined: Sorry, an error occurred ========== I can manage this same page just fine from IE 6.0, so this is really confusing. ________________________________________________________________________ Mike Barrett | "I used to read, now I go to raves." mike(a)daboyz.org | -- Random MUNI Rider, speaking www.daboyz.org | to my friend Allison. ------------------------+-----------------------------------------------

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Re: [Zope] reinstall zope
by Dieter Maurer 30 Mar '02

30 Mar '02

duranton writes: > I downloaded Zope-2.5.1b1 binary. It started the first time but somewhere I > must start several time before it start. Edit the start script and activate logging: Should look something like: exec /usr/local/bin/python2.1 \ $INST_HOME/z2.py \ -D -t5 -L '' \ STUPID_LOG_FILE=zope.log "$@" The essential thing is the "STUPID_LOG_FILE=zope.log". Restart and look into zope.log to learn about startup problems. > I then find Paaage template. > For the above message, I remove Zope-2.4.3 and I can't reobtain it. Stay with Zope-2.5.1b1! It contains Page Templates. Zope 2.4.x (x <= 3) contains serious stability problems. Dieter

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Re: Copying a Zope Site
by Bill Bell 30 Mar '02

30 Mar '02

kapil thangavelu <kthangavelu(a)earthlink.net> wrote, in part: > take a look andy's zsyncer product ... http://www.zope.org/Members/andym Does ZSyncer preserve modification dates? I mean, if one copies a site using this product will invididual objects in the newly minted copies have the same modification dates as the originals? Thanks. Bill ------------ "It is the time that you have wasted for your rose that makes your rose so important."--St-Exupery

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Re: [Zope] Searching Multiple Fields in ZCatalog
by Bak ＠ kedai 30 Mar '02

30 Mar '02

>> zope 2.5.1b1 >> in pythonscript, concat the result of the query like so >> >> o=getattr(context,'Catalog') >> r=o(index1={'query':'myquery'}) + o(index2={'query':'query2'}) >> return r >> >> there maybe better ways, but thsi is how i did it > >this works, but adds some extra overhead as you go through the entire >zcatalog query process several times. you can search a catalog on multiple >indexes by passing each index name and its query args as keyword names to the >catalog... ie for a simple case the above translates to > >o(index1=query, index2=query2) this is how i did it with zope 2.3.x i spoke to aj, and if i get it correctly, that way is deprecated. he ssays maybe zope 2.9, that code will break :) > >thus the full catalog search machinery is invoked only once and internally >(and more efficiently) the catalog will merge the results > >as per the original question, use a python script to break up the form input >appropriately to search the individual indexes. > >-kapil > >_______________________________________________ >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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Missing objects do not support conversion to float
by theeba 29 Mar '02

29 Mar '02

Hi, I'm trying to insert a value which is computed using python into a table. The python script looks as follows: - import string return((string.atof(QuantityA) * string.atof(WeightA)) + (string.atof(QuantityB) * string.atof(WeightB)) + (string.atof(QuantityC) * string.atof(WeightC)) + (string.atof(QuantityD) * string.atof(WeightD))) The sql query to insert this value into the table is as shown below: - [Arguments : QuantityA, QuantityB, QuantityC, QuantityD] insert into table (Net_Weight) VALUES (<dtml-in sqlGetSackWeight><dtml-var expr="pyCalculateSackWeight(QuantityA, WeightA, QuantityB, WeightB, QuantityC, WeightC, QuantityD, WeightD)"></dtml-in>) The sqlGetSackWeight is another sql query to retrieve the value of WeightA, WeightB, WeightC and WeightD which is stored in a separate table. These values would be multiplied by the value of the arguments and the total is computed. The problem is, when I test the sql query to do an insert, I get an error as shown below Error Value: Missing objects do not support conversion to float. (Info: ({'script': <PythonScript instance at 08C40F00>, 'context': <r instance at 08EE1D40>, 'container': <Folder instance at 08DD16D0>, 'traverse_subpath': []}, ('1', Missing.Value, '2', 10, '3', Missing.Value, '4', Missing.Value), {}, None)) File Script (Python), line 5, in pyCalculateSackWeight File E:\Zope2.4.1-NEW\bin\lib\string.py, line 199, in atof TypeError: (see above) Why is it that the value for WeightA, WeightC and WeightD seems to be a missing whereas, the value for WeightB (i.e 10) is inserted? I hope you could help me solve this problem as soon as possible. Thank you, Theeba

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Re: [Zope] Having to keep typing "./start &"
by Douglas Carnall 29 Mar '02

29 Mar '02

Assuming you have followed: http://www.zope.org/Members/mcdonc/HowTos/zopeinstall/ZOPE-INSTALL-HOWTO the next thing to look at is http://www.zope.org/Members/jens/docs/newbie_caveats I think your problem may be to do with the fact that the Zope binaries for Linux ship with the -D (=debug) option in the start script enabled by default. With this enabled, when you close the terminal you started zope in, you stop zope. If I am right, then this is an FAQ. Each time I answer it, I plaintively wonder aloud why the -D flag would be the default, but I am generally ignored. Good luck with it anyways. D. > I just installed zope yesterday (running on linux) and found that I could > use the area mysite.com:8080/manage for a little while, and then the process > would be killed. i.e I'd have to keep typing "./start &" every few minutes > to be able to continue doing the tutorial. > > I found some info that says that I should change the port from 8080 (I'm > running cpanel under that port anyways), so I changed it to 9080 as > suggested. However, the problem still exists. > > Can anyone tell me how to fix this problem? (See my shell record below) > > Thanks *so* much, > Rachel > > > bash$ ./start & > ------ > 2002-03-29T23:41:16 INFO(0) ZODB Opening database for mounting: > '142013944_1017373373.101104' > ------ > 2002-03-29T23:41:16 INFO(0) ZODB Mounted database > '142013944_1017373373.101104' at /temp_folder > ------ > 2002-03-29T23:41:17 INFO(0) ZServer HTTP server started at Fri Mar 29 > 18:41:17 2002 > Hostname: rome > Port: 9080 > ------ > 2002-03-29T23:41:17 INFO(0) ZServer FTP server started at Fri Mar 29 > 18:41:17 2002 > Hostname: rome.dnsvault.com > Port: 8021 > ------ > 2002-03-29T23:41:17 INFO(0) ZServer PCGI Server started at Fri Mar 29 > 18:41:17 2002 > Unix socket: /home/cellsite/zope/var/pcgi.soc > Killed > > > _______________________________________________ > 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 ) -- Douglas Carnall tel:+44 (0)20 7241 1255 fax:08700 557879 mob:07900 212881 http://www.carnall.org/ dougie(a)carnall.org -- Douglas Carnall tel:+44 (0)20 7241 1255 fax:08700 557879 mob:07900 212881 http://www.carnall.org/ dougie(a)carnall.org

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Re: [Zope] Searching Multiple Fields in ZCatalog
by Bak ＠ kedai 29 Mar '02

29 Mar '02

>I'm sure this has been covered, but I can't find an answer. > >I need to perform a search across three different fields in my zcatalog. >Currently, the only way I can see to do this is with three distinct form >fields. I wish to have my users enter their query in only one form field, >and still search each of the three zcatalog indices. > >Any suggestions? zope 2.5.1b1 in pythonscript, concat the result of the query like so o=getattr(context,'Catalog') r=o(index1={'query':'myquery'}) + o(index2={'query':'query2'}) return r there maybe better ways, but thsi is how i did it hth > >Thanks, > >Aaron > >_______________________________________________ >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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Copying a Zope Site
by Douglas Perry 29 Mar '02

29 Mar '02

I've finished developing a Zope site on an internal development server. I need to move it to the live server. Is there a product or method that will allow me do do this cleanly? *** Douglas Perry "Don't be whiny or I'll have to get medieval on your hiney". -- Weird Al Yankovic

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Forbidden Variable Names
by Roger Erens 29 Mar '02

29 Mar '02

Hi Bing, > Dear all: > > A bug in Z SQL method wasted my whole precious morning! Write That's what bugs are supposed to do, if not wasting whole precious days! > replaced argument name "client" to "clientname" , then > everything is fine. > > Woo, but WHY???? what's inside this? I didn't read this at > anywhere. Is > there still more like this ahead? Apparently "client" is something like a reserved variable/keyword, and you'd better not use these words for your own variables. Same case for "id" and probably many more variable names. It would be nice indeed to have a list somewhere on zope.org or in the book with 'forbidden variable names'. (Debugger: Aiieeee! "client" is an FVN!) Enjoy the remaining of your afternoon, Roger

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