July 2003 - Zope - Zope lists

Creation of components for use across many sites.
by Alec Munro 31 Jul '03

31 Jul '03

Hi List, I've been working using Zope to build a set of components intended to be abstract and reusable. These components currently exist as folders, with each folder having a set of page templates, Python scripts, and SQL queries (and sometimes other stuff). The idea is that for a given site, I will declare that I am utilizing component X, and the component's default scripts and templates will allow for all the functionality I need. However, there are many cases where I need to override a given template or script in a component. I have this working to a degree, by having a folder called "site" in each component's folder, and in that folder I have the replacement scripts/templates/etc. Then I simply change my references like the following: "componentX/HTML/someTemplate" becomes: "componentX/HTML/site/HTML/someTemplate" "componentY/someScript" becomes: "componentY/site/someScript" As I said, this works. The problem is the folder that contains the components has to be copied to each site's root folder. What I would like is a system where in the root of my zope, I can have one folder for the components, and then in each sites folder, I can create the overriding scripts. This is complicated a slight bit by the fact that I need all URLs on a site to be within that site's folder. So I need to be able to call a URL like: "http://www.somesite.com/components/catalogue/buyStuff" and if I have overridden the "buyStuff" script, have it call the overridding script, but if I haven't, I need it to somehow acquire "zopeRoot/components/catalogue/buyStuff". I'm sure I haven't explained this properly, or there's something obvious I'm overlooking, so please ask questions as if I were terminally stupid :) Thanks for your time, Alec Munro

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problem trying to run in debug mode
by Tim Lynch 31 Jul '03

31 Jul '03

I'm having a problem trying to run in interactive debug mode. I have stopped my zope process. cd'ed to lib/python ran ../../bin/python import Zope, ZPublisher so far, everything is OK, the import works fine then, I try to view my root-level page: ZPublisher.Zope('/') I get: Status: 200 OK X-Powered-By: Zope (www.zope.org) Python (www.python.org) Content-Length: 0 ____________________________________________________________ that's it, that's all that displays. I'm expecting to see the source for my root-level index_html, but it's not displayed. next, I try to access a page template in the root folder: ZPublisher.Zope('/foobar') I get: Status: 404 Not Found X-Powered-By: Zope (www.zope.org) Python (www.python.org) Bobo-Exception-File: /usr/local/AgPortal/lib/python/ZPublisher/HTTPResponse.py Content-Type: text/html Bobo-Exception-Type: NotFound Bobo-Exception-Value: <TABLE BORDER="0" WIDTH="100%"> <TR VALIGN="TOP"> <TD WIDTH="10%" ALIGN="CENTER">   </TD> <TD WIDTH="90%"> <H2>Site Error</H2> <P>An error was encountered while publishing this resource. </P> <P><STRONG>Resource not found</STRONG></P> So Content-Length: 877 Bobo-Exception-Line: 626 <TABLE BORDER="0" WIDTH="100%"> <TR VALIGN="TOP"> <TD WIDTH="10%" ALIGN="CENTER">   </TD> <TD WIDTH="90%"> <H2>Site Error</H2> <P>An error was encountered while publishing this resource. </P> <P><STRONG>Resource not found</STRONG></P> Sorry, the requested resource does not exist. <p>Check the URL and try again.</p><p><b>Resource:</b> http://127.0.0.1/Zope/foobar</p> <HR NOSHADE> <P>Troubleshooting Suggestions</P> <UL> <LI>The URL may be incorrect.</LI> <LI>The parameters passed to this resource may be incorrect.</LI> <LI>A resource that this resource relies on may be encountering an error.</LI> </UL> <P>For more detailed information about the error, please refer to the HTML source for this page. </P> <P>If the error persists please contact the site maintainer. Thank you for your patience. </P> </TD></TR> </TABLE> ____________________________________________________________ why does the error msg report http://127.0.0.1/Zope/foobar instead of http://127.0.0.1/foobar ?? Is that standard? If I'm running zope normally, I can display foobar with http://127.0.0.1/foobar I'm running 2.6.1 any help with getting debugging going would be very much appreciated --- Tim Lynch tlynch(a)nal.usda.gov

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calling standart_html_header in python script
by Exteam 31 Jul '03

31 Jul '03

Hi, I am using plone, & Zope. I need to call the standard_html_header & standard_html_footer (both are dtml methods in plone skins), how do i call these in the python scripts. i had tried it this way, context.standard_html_header(context,request) context.standard_html_footer(context,request) but doesn't work or give any error i had done this based on the following page http://www.zopelabs.com/cookbook/992031125 what do i do now? plz help me Thanks Harish ________________________________________________________________________ Send free SMS using the Yahoo! Messenger. Go to http://in.mobile.yahoo.com/new/pc/

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Interfaces to imported python modules
by Matt 31 Jul '03

31 Jul '03

I seem to be having a problem accessing attributes and methods of objects created inside a custom Zope product from python scripts and ZPTs. I am not sure whether this is a misunderstanding of the security access rules described in the Zope Developer's Guide, or perhaps just the wrong way to think about exposing python objects to python scripts and ZPTs. The basic scenario in my product module is this from SomeWhereElse import ObjectA Class MyProduct( Folder.Folder, Persistent, Implicit ) def __init__( self ): self.dataObjects = [] def createAndAddDataObject( self ): self.dataObjects.append( Data( ) ) def getDataObjects( self ): """ return the dara """ return self.dataObjects Class Data: def __init__( self ): self.data = ObjectA() ---------- So not very interesting, and I have skipped all the usual product and _p_changed bits, I'm simply demonstrating the relationship between product class, a custom data class, and classes from SomeWhereElse. in SomeWhereElse, ObjectA creates and holds references to many other Objects of many different classes. The problem is that I can call a method such as getDataObjects from a python script and get back a list of objects of type Data. However I cannot access the attributes or methods of the ".data" attributes of these Data objects. No amount of setting the following in either the Product class or the Data class helps. __allow_access_to_unprotected_subobjects__=1 security = ClassSecurityInfo() security.setDefaultAccess("allow") The only option I feel I have is to explicitly define in Data or MyProduct getters/callers for all the methods and attributes of the classes defined in SomeWhereElse using proxy classes with the appropriate security settings set. This seems a bit cumbersome. Any pointers would be much appreciated. regards Matt

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Calling Page Template with Dictionaries
by Roy Rapoport 31 Jul '03

31 Jul '03

We know we can do this: python script: foo='bar' return context['page_template'](arg=foo) and in page_template: Hello, arg is <p tal:content="string:${options/arg}"></p> What I'm hoping to find out, though, is whether I could call a ZPT with a dictionary. My initial effort: PS: d = {} d['arg'] = 'bar' return context['page_template'](d) page_template: Hello, arg is <p tal:content="string:${options/arg}"></p> Resulted in Error Type: Undefined Error Value: arg not found in 'options/arg', at line 12, column 11 Suggestions? -roy Content-Type: text/plain; charset="iso-8859-1" ------------------------------------------------- PLEASE READ THIS WARNING: All e-mail sent to or from this address will be received or otherwise recorded by the Fisher Investments corporate e-mail system and is subject to archival, monitoring or review by, and/or disclosure to, someone other than the recipient.

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Local Zope roles with LDAPUserFolder
by Jim Hodapp 31 Jul '03

31 Jul '03

I have a question pertaining to the LDAPUserFolder and I found your email for a contact for the product. I am using it to authenticate users against my company's ActiveDirectory controller so users can login to my Plone site using their same Windows username and password pair. However, how do I assign roles to users once they are made aware to Zope through LDAPUserFolder? How do I assign, for instance, a role of Member and Admin to my own username? Are there any docs on LDAPUserFolder or any mailing lists? Thanks, Jim Hodapp NNC Group http://www.nncgroup.com

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Zope 2.7 and zhttp_handler
by Ray Price 31 Jul '03

31 Jul '03

I'm starting to play with Zope 2.7 and I can't figure out how to publish my scripts as described in "How To Publish Your Own Python Modules" (http://www.zope.org/Members/Amos/ZPublisher) by Amos. I used this technique for older versions of Zope. Is there a 'how to' for Zope 2.7 that covers publishing your own modules? Ray

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Code highlighting in wiki (structured text)
by Daniël Hooymans 31 Jul '03

31 Jul '03

Hi, Perhaps a bit off topic. I was wondering if it were possible to include code (python/delphi/etc) with syntax highlighting into a wiki (structured text) page ? If not, would it be possible to implement this ? And how can you do this ? Greets, Daniel

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Date Time Week question
by Rex McKanry 31 Jul '03

31 Jul '03

Hi, I have a question about Date Time Week. I'm very new to Zope and Python and am not sure I'm going to ask this correctly. My question is in two parts. 1) If I have a drop down list of week numbers (1-53) is there a way to populate a table Sunday through Saturday with the correct dates for the week that is selected? My other thought is: 2) If I can search through a calendar year and pick out all of the Sunday dates and then add to that date 1 day at a time to populate the same table? Here I'm thinking of searching for each sunday date and putting that in the drop down list insead of the week number above. Then adding to the selected date to fill in the table. Thanks for the help in advance. This is for my final project at school and I'm feeling the pressure this week even through I still have a couple of weeks. Thanks, Rex __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com

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Script to restart Zope?
by Jean Jordaan 31 Jul '03

31 Jul '03

Hi all There used to be a script to restart a Zope instance when it ate up too much memory or CPU. It was called something "-lance", but I can't find it anymore. Does anyone know of such a tool, or where it went? (A direct reply would be sweet ..) -- Jean Jordaan http://www.upfrontsystems.co.za

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