November 2001 - Zope

Experience with Zope and Access ?
by Marc Gehling 13 Nov '01

13 Nov '01

Hello, has somebody done experiences with Zope and Access? In particular, a productive-system would interest me. This I Access uses, lies at the existing system and at the outstanding replication-methods of Access, a beautiful day still, marc

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Zope Error Logging
by Arun Joseph 13 Nov '01

13 Nov '01

Hi, We have developed a product (a mini ECRM) on Zope/Python/Mysql and the product is currently used by a few customers. Off late on our production server, we are getting zope error messages on the linux console. We believe that this is affecting the performance. I have turned on detailed error logging, when zope is started using the -M switch. When I read the resultant error log file, I find a lot of information, some of which is not quite clear. Can anyone please tell me, what the data in the error log file means? A sample of the text from the error log file is given below. B 160787448 2017-11-13T06:29:43 GET /AukumProject/Admin/ListLicense.dtml/manage_ main I 160787448 2017-11-13T06:29:43 0 A 155066912 2017-11-13T06:29:43 302 486 E 155066912 2017-11-13T06:29:43 Thanks in advance, Cliff __________________________________________________ Do You Yahoo!? Find the one for you at Yahoo! Personals http://personals.yahoo.com

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Cannot Import DateTime
by Ben Ocean 12 Nov '01

12 Nov '01

Hi; I'm trying to install EMarket and I've run into this problem: >2001-11-12T19:11:58 ERROR(200) Zope Could not import Products.EMarket >Traceback (innermost last): > File > /apache/ZopeInstallation/Zope_software_home/lib/python/OFS/Application.py, > line 558, in import_product > File > /apache/ZopeInstallation/Zope_software_home/lib/python/Products/EMarket/__init__.py, > line 12, in ? > File > /apache/ZopeInstallation/Zope_software_home/lib/python/Products/EMarket/EMarket.py, > line 23, in ? >ImportError: cannot import name DateTime Now, that line in the complaining script reads thus: from Globals import HTMLFile, MessageDialog, Persistent, DateTime So, apparently, it's importing all the other modules from Globals, why not DateTime? Or, how do I install DateTime? Or check if I have it? TIA, BenO

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Python 10 Registration Opens Online Today
by Amy Katherine 12 Nov '01

12 Nov '01

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Howto Implement a site search functionality for LocalFS product
by Singh, Kamal Deep 12 Nov '01

12 Nov '01

Hi, I am trying to use zope along with LocalFS product to access the files from local file system. My current need is to provide site search functionality. It seems ZCatalog and other search utilities provided inside zope doesn't work for LocalFS. Does anybody has a idea howto provide Site-Search functionality for the files from file system. thanks in anticipation kamal deep singh

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ZSQL caching question
by Schmidt, Allen J. 12 Nov '01

12 Nov '01

We have a section of our site delivering online classifieds which are imported from text file into a Microsoft Access2000 DB and retrieved using ZSQL methods connecting to Access with a ZODBC adapter. Works fine. Most of the expensive ZSQL methods are cached in the Advanced tab. To make the switch to MySQL, I copied the whole Classifieds folder and renamed it. Then created a MySQL connection to the new database and went into each ZSQL method and pointed them to the new MySQL DA. I checked the caches and they are still there. Problem: Even for one user while testing, the site section is VERY SLOW. Our admin says while monitoring the MySQL DB the connections go way up and it loads up the server. Question: Are the caches 'moving' along with the ZSQL methods when the DB connection was changed? Grasping at straws but it should be faster than using Access. The other site we converted to MySQL from Access did not have the problem and never thought to check the caches...it just worked and was much faster. Any ideas or am I just missing something? Thanks Allen -----Original Message----- From: Jason Earl [mailto:jason.earl@simplot.com] Sent: Monday, November 12, 2001 2:14 PM To: csnorville(a)fedex.com Cc: zope(a)zope.org Subject: Re: [Zope] File I/O in Zope csnorville(a)fedex.com writes: > Hi Everyone, Hello > I am fairly new to Zope and I need some assitance on something that > I know is fundamental so please don't beat up on me too bad ;-) I haven't been a member of this list for too terribly long, but the folks here seem to be pretty darn friendly. > I am try to open a file with a Python Script in Zope for content > manipulation. This is a text file, I basically want to read a > number, operate on it and write it back out. However when I try to > get my file handle I get; You are going to need to use an External Method (or a Product) for this. The Zope based Python scripts only offer a "safe" subset of Python. Opening files on the filesystem is not a part of this "safe" subset. > file=open("/home/chris/misernumber", "r+") > > Zope Error > > Zope has encountered an error while publishing this resource. > > Error Type: NameError > Error Value: global name 'open' is not defined > > I tried creating the file as a Zope object but I get the same error. > Again I know this is fundamental. If ya'll can help me with this, or > at least point me to some documentation it would be deeply > appreciated. There probably is a way to do this with Zope objects, but it wouldn't be using open(). There is a whole slew of methods for manipulating Zope objects, check the Zope API section in the Zope Book. Depending on what you are actually trying to do there might be a more Zope-like way of accomplishing it than with the External Method hammer, but without knowing what you are trying to do it is hard to guess what that more Zope-like thing should be. Jason _______________________________________________ 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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File I/O in Zope
by csnorville＠fedex.com 12 Nov '01

12 Nov '01

Hi Everyone, I am fairly new to Zope and I need some assitance on something that I know is fundamental so please don't beat up on me too bad ;-) I am try to open a file with a Python Script in Zope for content manipulation. This is a text file, I basically want to read a number, operate on it and write it back out. However when I try to get my file handle I get; file=open("/home/chris/misernumber", "r+") Zope Error Zope has encountered an error while publishing this resource. Error Type: NameError Error Value: global name 'open' is not defined I tried creating the file as a Zope object but I get the same error. Again I know this is fundamental. If ya'll can help me with this, or at least point me to some documentation it would be deeply appreciated. Thanks, Chris

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Best way to do "links"
by Oliver Bleutgen 12 Nov '01

12 Nov '01

Hi, I am unsure how to achieve the following in a product: I have a folder with templates which shall be used to render articles. This folder will be the central repository of templates for all articles which find it in their acquisition path. Now, I want be able to dynamically assign (and change) templates for a given article, and if I edit one template it should reflect in all articles which are configured to use that template. In http://lists.zope.org/pipermail/zope-dev/2001-May/011187.html Shane Hathaway describe hardlinks, which seem to do what I need. i.e. I then just do t = template_folder.one_template self.template = t I looked at how ZSQL-methods solve that problem (usage of SQLConnections), and as far as I can see ZSQL-methods just store the id of the ZSQL connection and use that everytime they need to access the DB. Is that right and if so, why is it done that way? Doesn't give that a performance hit? And the last one: Will the above described method still allow import/export these instances? cheers, oliver

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[announce] ColorViewer tool & example
by Mitchell L Model 12 Nov '01

12 Nov '01

http://www.zope.org/Members/mlm/Utilities/ColorViewer is an interactive color chart that displays hex triples (for example, 36F) and the color they represent. The problem addressed is that there are 256**3 of these, far too many to display on a page. The solution is to let the user choose which of the three primaries to "fix" and at what value; the 256 colors with that primary having that value are then displayed in a 16x16 grid. In addition to being a useful and novel (I think -- please email me links pointing to similar configurable color displays if you know of others) this DTML method demonstrates a number of DTML techniques, which it lists below its color chart. Enjoy!

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[NEWBIE] Oracle DA
by Stephan Goeldi 12 Nov '01

12 Nov '01

When I install DCOracle and OracleStorage, is it true, that I can use Zope as usual, or is there anything else to do? _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

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