January 2001 - Zope - Zope lists

Re: [Zope] ZClasses meet PythonScripts, sample request
by Jim Washington 15 Jan '01

15 Jan '01

Hi, Tim What is the name of the propertysheet in your ZClass that these values are on? Is it 'job_info'? Where is the editFormAction Python Script? It should be in your ZClass's /methods. If you are instead acquiring it from a Folder somewhere, you will need to use 'context' instead of 'container' inside the Python Script. -- Jim Washington Timothy Wilson wrote: > > On Mon, 15 Jan 2001, Jim Washington wrote: > > > I have it. > > The Python Script I sent you: > > > > container.propertysheets['job_info'].manage_changeProperties(REQUEST) > > > > needs to be rewritten: > > > > container.propertysheets.job_info.manage_changeProperties(REQUEST) > > Hey Jim, > > I'm getting closer. Now I get the following error and traceback: > > Error Type: AttributeError > Error Value: job_info > > Traceback (innermost last): > File /var/lib/zope/2.3.0a2/lib/python/ZPublisher/Publish.py, line 222, in > publish_module > File /var/lib/zope/2.3.0a2/lib/python/ZPublisher/Publish.py, line 187, in > publish > File /var/lib/zope/2.3.0a2/lib/python/Zope/__init__.py, line 221, in > zpublisher_exception_hook > (Object: Traversable) > File /var/lib/zope/2.3.0a2/lib/python/ZPublisher/Publish.py, line 171, in > publish > File /var/lib/zope/2.3.0a2/lib/python/ZPublisher/mapply.py, line 160, in > mapply > (Object: editJobForm) > File /var/lib/zope/2.3.0a2/lib/python/ZPublisher/Publish.py, line 112, in > call_object > (Object: editJobForm) > File /var/lib/zope/2.3.0a2/lib/python/OFS/DTMLMethod.py, line 189, in > __call__ > (Object: editJobForm) > File /var/lib/zope/2.3.0a2/lib/python/DocumentTemplate/DT_String.py, line > 538, in __call__ > (Object: editJobForm) > File /var/lib/zope/2.3.0a2/lib/python/DocumentTemplate/DT_Util.py, line > 336, in eval > (Object: editFormAction(REQUEST)) > (Info: REQUEST) > File <string>, line 0, in ? > File /var/lib/zope/2.3.0a2/lib/python/Shared/DC/Scripts/Bindings.py, line > 325, in __call__ > (Object: editFormAction) > File /var/lib/zope/2.3.0a2/lib/python/Shared/DC/Scripts/Bindings.py, line > 354, in _bindAndExec > (Object: editFormAction) > File > /var/lib/zope/2.3.0a2/lib/python/Products/PythonScripts/PythonScript.py, > line 321, in _exec > (Object: editFormAction) > (Info: ({'script': <PythonScript instance at 873fbd8>, > 'context': <JobPosting instance at 86b7dc0>, 'container': <Folder > instance at 87225f0>, 'traverse_subpath': []}, > (<h3>form</h3><table><tr > valign="top" align="left"><th>posted</th><td>'01/15/2001'</td></tr><tr > valign="top" align="left"><th>duties</th><td>['asdfasdf\015\012']</td></tr><tr > valign="top" align="left"><th>position</th><td>'asdfadsfasd'</td></tr><tr > > -- again snipping the rest of REQUEST -- > > File Python Script, line 2, in editFormAction > File /var/lib/zope/2.3.0a2/lib/python/Products/PythonScripts/Guarded.py, > line 272, in __getattr__ > File /var/lib/zope/2.3.0a2/lib/python/Products/PythonScripts/Guarded.py, > line 143, in __careful_getattr__ > (Object: Traversable) > AttributeError: (see above) > > Any ideas?

2 1

ZClasses meet PythonScripts, sample request
by Timothy Wilson 15 Jan '01

15 Jan '01

Hi everyone, I'm looking forward to using some PythonScripts as methods of some ZClasses because it seems like a much cleaner way to do things. I wonder if one of the PythonScript gurus out there would be willing to show an example of two presumably common PythonScript/ZClass tasks: processing changes to a property sheet using form input and deleting a ZClass instance. Let's say we've got a ZClass for keeping track of a CD collection. (I recall seeing that example in a ZClass How-To.) Let's say the ZClass has a property sheet called 'cd_info' with the following properties: title (string) artist (string) date_purchased (date) (for extra credit, add a 'songs' property of type 'lines' :-) Is that enough info? Anybody want to take a crack at this? (This would surely be good info to put at zope.org somewhere.) -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.k12.mn.us/ | http://www.zope.org/ W. St. Paul, MN | | http://slashdot.org/ wilson(a)visi.com | <dtml-var pithy_quote> | http://linux.com/

3 10

Re: [Zope] How to get python error output? (PIL)
by Dieter Maurer 15 Jan '01

15 Jan '01

tilo.schwarz(a)daimlerchrysler.com writes: > ... print in external method ... "print" does not print to the log file but to standard output. Under Unix (and I think under Windows, too) you can redirect standard output to a file. The alternative is to use Zope's Log module (called zLOG). Its output goes to the log file. Dieter

1 0

Re: [Zope] renaming python input params in DTML
by Dieter Maurer 15 Jan '01

15 Jan '01

Lee writes: > ... > I have a Python method expecting 'text' as a parameter ... > ... > The Python method, testSQL, returns 'result'. > ... > <dtml-in expr="REQUEST.form.items()"> > <dtml-in expr="testSQL(text='<dtml-var sequence-key>x<dtml-var > sequence-item>')"> > <dtml-var result> > </dtml-in></dtml-in> Inside 'expr="..."' you use "_['x']" instead of <dtml-var x>. As this is a Python expression that needs to be evaluated, it cannot be in a string. You can use the "%" operator which takes a format string and an object or tuple as parameters and formats object/tuple according to the string. If your Python method contains a "return result", then there is not magically a "result" variable (and there is not need for it, too). Are you sure, you want the nested "dtml-in". Looks very strange. Thus, you can use: <dtml-in expr="REQUEST.form.items()"> <dtml-var expr="testSQL(text='%sx%s' % (_['sequence-key],_[' sequence-item]))"> </dtml-in> Dieter

1 0

ZMySQLDA returns truncated/corrupted data?
by aasmund＠polardesign.no 15 Jan '01

15 Jan '01

I am running Zope from the CVS (from January 14th), MySQL 3.22.23 and ZMySQLDA v2.0.1. The install appears to be successfull, the Products appear in the Control Panel, I can add, and open a database connection. However, when I issue the following query: SHOW TABLES; I receive the following set: Tables in la_eksempel -------------------- a (la_eksempel the name of the database, naturally) There is no table named 'a', however there is a table named "artikkel". If I try to browse the database, I get a tree with 5 first-level nodes, all named with the first letter of a table in my database. If I try "SELECT * FROM ARTIKKEL;", I get Error Type: TypeError Error Value: len() of unsized object With the following traceback: Traceback (innermost last): File /home/ahj/polar/zope/Zope2/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /home/ahj/polar/zope/Zope2/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/ahj/polar/zope/Zope2/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File /home/ahj/polar/zope/Zope2/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/ahj/polar/zope/Zope2/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_test) File /home/ahj/polar/zope/Zope2/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_test) File /home/ahj/polar/zope/Zope2/lib/python/Shared/DC/ZRDB/Connection.py, line 204, in manage_test (Object: RoleManager) File /home/ahj/polar/zope/Zope2/lib/python/DocumentTemplate/DT_String.py, line 538, in __call__ (Object: <string>) File /home/ahj/polar/zope/Zope2/lib/python/DocumentTemplate/DT_In.py, line 605, in renderwb (Object: db) File /home/ahj/polar/zope/Zope2/lib/python/Shared/DC/ZRDB/Results.py, line 174, in __getitem__ TypeError: (see above) Has anybody else experienced this?

2 1

Re: [Zope] REQUEST object - obtaining variables from
by Lee 15 Jan '01

15 Jan '01

Hi there, Thanks for your help. I'm currently using the following code, which works perfectly; <dtml-in expr="REQUEST.form.items()"> <dtml-let text="_['sequence-key'] + 'x' + _['sequence-item']"> <dtml-call expr="updateDB(text)"> </dtml-let> </dtml-in> Randy's response provided the following code, which didn't work nor did any variation on it. Surprising as it 'appears' to be doing almost the same thing as above(?). <dtml-in expr="REQUEST.form.items()"> <dtml-in expr="updateDB(text=_['sequence-key'] + 'x' + _['sequence-item'])"> <dtml-var result> </dtml-in> </dtml-in> Cheers, Lee jpenny(a)universal-fasteners.com wrote: > On Sat, Jan 13, 2001 at 06:11:08PM +0000, Lee wrote: > You have indeed overlooked something. There are tons of things in REQUEST > unrelated to your form. > > To simply display the entire request, put > <tml-var REQUEST> > in display/index_html > > To access the value of name1 in display/index_html, > you can use many forms: > > <dtml-var REQUEST['name1']> > > <dtml-var name1> #may get something else if name1 is NOT in REQUEST > > <dtml-with REQUEST> > <dtml-var name1> > </dtml-with> > > <dtml-in ('name1', 'age1', 'name2', 'age2')> > <dtml-var "REQUEST[_.['sequence-item']]"> > </dtml-in> -- Lee Reilly mailto:lee.reilly@ntlworld.com ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,,ø¤º°`°º¤ø,,,, HAVE SKILLS; WILL TRAVEL. I'm currently looking for an internship in the USA in the field of web development. Ideally, I'm looking for a placement for 3 to 18 months. Can you help? More details, my resume, etc. @ http://homepages.strath.ac.uk/~aeu97172/ </shameless plug>

1 0

Batch.
by Rommel Novaes Carvalho 15 Jan '01

15 Jan '01

Hi everybody, I am studying Zope and I saw a batch exemple on the zopebook but I don't know why it does't work properly. I would be glad if any of you could send me a batch exemple to see why the one I saw in the book is not working. Thanks in advance, Rommel Novaes Carvalho

1 0

mysql connection string
by Olaf Zanger 15 Jan '01

15 Jan '01

hi there, two times trouble first: right now my setup uses a connection string "db root" which doesn't seam to give a lot of savety :-). at my provider i have a login, but sure no root access to the db. * how does the connection string look for user name "peter-hauser" and password "test3-.2"? * has the user to be set up in "linux" ? * how is the setup made in "mysql"? i tried with "grant all privileges on *.* to "peter-hauser"@localhost;" and "set password for "peter-hauser"=password('test3-.2');" but wasn't successful. * has zope to be run by user "peter-hauser"? second? to set up a 3-tier application i should know how to connect mysql through MySQL-python 0.3.0 and ZMySQLDA 2.0.1 to my db-server. * i can browse from the zope server to the db-server "pit" and otherway round with the names "pit" and "pitechon", so "hosts" file should be correct. * how has the connection string to look like? i tried "db@pit 'peter-hauser'" but it didn't work? * has mysql to be started with an special flag to open a port? * does it work with the ip-number? thanks for help olaf -- soli-con Engineering Zanger Dipl.-Ing. (FH) Olaf Marc Zanger Lorrainestrasse 23 3013 Bern / Switzerland Fon: +41-31-332 9782 Mob: +41-76-572 9782 mailto:info@soli-con.com mailto:olaf.zanger@soli-con.com http://www.soli-con.com

3 2

How to get python error output? (PIL)
by tilo.schwarz＠daimlerchrysler.com 15 Jan '01

15 Jan '01

Hi Zopians out there, thanks for helping me with my last question - here is a new one ;-) We do image-processing of traffic-video-sequences and I'd like to serve thumbnails use the following code (originally from some HOW-TO) as external method: import os, os.path, Image def get_image(self, imagename, thumb, REQUEST, RESPONSE): """ Read and return an external file with appropriate response set. Returns the contents of the file or image. Also, sets the Content-Type HTTP header to the objects content type. """ thumbname = os.path.join('/tmp', 'thumbs', imagename) imagename = os.path.join('/tmp', 'images', imagename) print 'i:', imagename print 't:', thumbname if not os.path.exists(imagename): return "" if thumb == '1': print 'inner' if not os.path.exists(thumbname): print 'inner2' #img = Image.open(imagename) <-- if I remove the comment, the 'inner2' is still printed, but the 'after open' in the next line is not printed in the logfile anymore print 'after open',img, type(img),'di' img.thumbnail((100,50)) print img.size img.save(thumbname) print 'later' imagename = thumbname fptr=open(imagename, "rb") data=fptr.read() size=len(data) fptr.close() RESPONSE.setHeader("Content-Type", "image/png") RESPONSE.setHeader("Content-Length", size) return data My questions are: - Does anybody have a clue, why the 'after open' and the next two prints are not printed in the log file (I thing /var/log/zope) when I uncomment the line above? - If it is some error within python and/or the PIL, how do I get the error output out of zope (I couldn't find this in the docu yet). The strange thing is, the request is served, but the lines print 'after open',img, type(img),'di' img.thumbnail((100,50)) print img.size img.save(thumbname) print 'later' seem to be simply ignored when uncommenting the "img = Image.open(..." line. BTW, I can execute the PIL-commands in the normal python-shell without any problems. Thanks for any hint. Tilo Schwarz ----------------------------------------------------------------- DaimlerChrysler AG, Research & Technology Image Understanding FT3/AB Dr. Tilo Schwarz Email: tilo.schwarz(a)daimlerchrysler.com Tel: +49-731-505-2376 Fax: +49-731-505-4105 P.O.Box 2360, 89013 Ulm, Germany

1 0

RE: [Zope] Design Q: Product vs. External Methods
by Max Møller Rasmussen 15 Jan '01

15 Jan '01

From: Oleg Broytmann [mailto:phd@phd.pp.ru] > I can assure it is. I run zope.net.ru in debug mode, and did debugging >of an External Method that draw the left column. After I modified the >source file Zope reread it, sure. I have never had problems with that either. It autorefreshes nicely. regards Max M

1 0