August 2004 - Zope - Zope lists

Zope X3 3.0.0 beta 3 released
by Stephan Richter 16 Aug '04

16 Aug '04

Dear Zope community, The Zope 3 development team is proud to announce the third beta release of Zope X3 3.0.0. Zope X3 is the next major Zope release and has been written from scratch based on the latest software design patterns and the experiences of Zope 2. The "X" in the name stands for "experimental", since this release does not try to provide any backward-compatibility to Zope 2. Downloads http://zope.org/Products/ZopeX3 Installation instructions for both Windows and Un*x/Linux are now available in the top level README.txt of the distribution. The binary installer is recommended for Windows. Changes since beta 2 - Updated to use ZODB 3.3b2. - Reviewed security and fixed many outstanding open issues. This required some rearranging and writing of security-related code. - Removed several uses of 'removeAllProxies()' as this is considered a bad coding practice. - Added 'zope.security.proxy.removeSecurityProxy()' function to replace 'zope.security.proxy.trustedRemoveSecurityProxy()'. - Implemented rdb:gadflyRoot directive. You are now able to specifically point to a directory that should contain the gadfly databases. - When browsing the source code via the API doc tool's Class Browser, ZCML files are now shown as well. When viewed, a marked up version of the ZCML code is shown with links to other parts of the documentation. - Resolved or otherwise dealt with issues 112, 122, 130, 133, 139, 162, 190, 194, 202, 203, 211, 212, 219, 220, 221, 225, 228, 231, 234, 235, 238, 239, 245, 247, 249, 251, 252, 253, 255. - Fixed various bugs in the API doc tool. - Factory IDs have to be real IDs now, i.e. either a dotted name or a URI. - Cleaned up much of the source code. Now every module should have a module doc string with a title and 'id' tag in it. Goals The API is frozen for X3.0.0. We would like to ask all people to test this release and report any bugs or mis-behaviors! This might be the last beta release! The entire beta period will likely last for about 2 months. During this time we will try to complete the following tasks: - Fix outstanding bugs. - Optimize critical components to speed up the system. - Write and update documentation. - Add and complete translations. - Remove as many XXX comments as possible. Though much progress has been made since the second beta, there are still tasks to be completed! Even if you are not a programmer, you can help! Please send any bug reports and comments to zope3-dev(a)zope.org! Thank you very much in advance for your help! Contributors Jim Fulton, Fred Drake, Dmitry Vasiliev, Philipp von Weitershausen, Stephan Richter, Garrett Smith, Tim Peters. Thanks to everyone!

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HTML/PlainText alternate eMails from Zope
by Jonathan Cyr 15 Aug '04

15 Aug '04

Hello, I want to send eMail from Zope that automatically shows HTML to HTML-enabled eMail clients and PlainText otherwise. It seems to concern a boundary of type? alternate. I'm not very versed in eMail and its protocols. I was hoping one of the DTML sendmail options would achieve this. Anyone know how to do this? Or some keywords for Google other than HTML eMail boundary or alternate? Thanks, Jon Cyr cyrj(a)cyr.info

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profiling DTML, TAL, Python Scripts, and the like
by Dennis Allison 15 Aug '04

15 Aug '04

Zope's profiling is done in the python space (it's a wrapper for the python profiling). I need to optimize an existing Zope application. Has anyone done a profiler for Zope applications?

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Using Zope Page Templates for forms (tabs of products)
by Josef Meile 15 Aug '04

15 Aug '04

--- In zope(a)yahoogroups.com, Pupeno <pupeno@p...> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Friday August 13 2004 16:48, Josef Albert Meile wrote: > > def myTemplate(self): > > """Here some attributes are added to the template""" > > _myTemplate._owner=None > > #Adds the management_view attribute to the built-in variable "options" > > return _myTemplate.__of__(self)(management_view='Bounce') > Can you elaborate that a bit more ? what is __of__ ? why did you make > _ownner=None ? "_myTemplate.__of__(self)" means "_myTemplate in the context of self". Take a look at the book of Dieter where he talks about Acquisition. It is explained there: http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html About _owner=None, taken textualy from this page: http://www.zope.org/Members/Zen/howto/ZPT_management "The important line here is manage_editThingyForm._owner = None. Without this line, your management screens will fail to work if the Thingy instance was created or owned by a user with restricted permissions, as access to the management screen helpers such as manage_page_header will fail." > > Then you can do this on zpt: > > <div tal:define="management_view options/management_view"> > > Do something here > > </div> > What about <p tal:content="options/management_view" /> ? That should work as well. > > What I'm trying to do is this: > security.declareProtected('Manage properties','manage_importForm') > manage_importForm = PageTemplateFile('www/manage_importForm', globals()) > manage_importForm._owner = None > > security.declareProtected('Manage properties', 'manage_import') > def manage_import(self, REQUEST): > message="something" > REQUEST.RESPONSE.setHeader('content-type', 'text/html') > return self.manage_importForm.__of__(self)(message=message) > > And in the template: > > And when I try to access, I get the error: > Error Type: KeyError > Error Value: 'message' > What am I doing wrong ? > <div tal:define="message options/message"> > </div> I think you are a little bit confused. Normaly by convention, manage_importForm is the zpt object and manage_import is the submit method of the import form. If you see your code, you will see that you are not defining message on manage_import_Form. You define it later on manage_import, so, when you call your template "manage_import_Form, you will get a KeyError as expected. I would redefine your sample like this: _manage_importForm = PageTemplateFile('www/manage_importForm', globals()) security.declareProtected('Manage properties','manage_importForm') def manage_importForm(self,REQUEST) _manage_importForm._owner=None message="something" REQUEST.RESPONSE.setHeader('content-type','text/html') return _manage_importForm.__of__(self)(message=message) def manage_import(self, param1, param2, REQUEST=None): #Do somthing here to process the #information on the manage_importForm Regards, Josef

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Using Zope Page Templates for forms (tabs of products)
by Josef Albert Meile 14 Aug '04

14 Aug '04

>I have a product for which I am adding another tab, or lable or whatever >you call it, that is, I added a dict to manage_options. >Now, what I'm doing in fact, is turning a script and a template I did to a >tab to integrate it in the product. >I've done everything with zpt (I try to avoid dtml) ... Congratulations ;-) ><dtml-var manage_page_header> >... ><dtml-var manage_tabs> >... >and ><dtml-var manage_page_footer> >in ZPT. This is described in: http://www.zope.org/Members/Zen/howto/ZPT_management ><dtml-with "_(management_view='Bounce')"> For this, you will have to pass a parameter to the template like: from Products.PageTemplates.PageTemplateFile import PageTemplateFile _myTemplate=PageTemplateFile('zpt/myTemplateName',globals()) def myTemplate(self): """Here some attributes are added to the template""" _myTemplate._owner=None #Adds the management_view attribute to the built-in variable "options" return _myTemplate.__of__(self)(management_view='Bounce') Then you can do this on zpt: <div tal:define="management_view options/management_view"> Do something here </div> >And how do I make a call similar to this: >DTMLFile('dtml/manage_bounceForm', globals()) See above. Regards, Josef _________________________________________________________________ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus

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Using Zope Page Templates for forms (tabs of products)
by Josef Albert Meile 13 Aug '04

13 Aug '04

>I have a product for which I am adding another tab, or lable or whatever >you call it, that is, I added a dict to manage_options. >Now, what I'm doing in fact, is turning a script and a template I did to a >tab to integrate it in the product. >I've done everything with zpt (I try to avoid dtml) Congratulations ;-) ><dtml-var manage_page_header> >... ><dtml-var manage_tabs> >... >and ><dtml-var manage_page_footer> Take a look at: http://www.zope.org/Members/Zen/howto/ZPT_management. ><dtml-with "_(management_view='Bounce')"> To do this, you have to pass a parameter to the Template like this: from Products.PageTemplates.PageTemplateFile import PageTemplateFile _myTemplate=PageTemplateFile('zpt/myTemplateName',globals()) #The management_view attribute is passed to the page template def manage_something(self): """Here some attributes are added to the template""" #This is necesary in order to allow other users to access to this template _myTemplate._owner=None #Adds the management_view attribute to the built-in variable "options" return _myTemplate.__of__(self)(management_view='Bounce') Then you can use it from zpt: <div tal:define="management_view options/management_view"> Do something here with management_view </div> >And how do I make a call similar to this: >DTMLFile('dtml/manage_bounceForm', globals()) Already answered, see above. >but for a zpt (currently, I have the zpt as an object, created in an >instance of the product, not as a file on the product, and I'm calling it >like this: >return self.importerTemplate(self, REQUEST, message=None) Ah, you mean a ZPT on the Zope DB? I've seen this on the source of Siva, but I don't remmember the proper sintax. However, I found this on my bookmarks -> I haven't tested it and I don't know if it is the right approach: http://mail.zope.org/pipermail/zope/2004-May/149907.html This could be useful as well: http://www.zope.org/Members/peterbe/DTML2ZPT Regards, Josef _________________________________________________________________ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus

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Zope/Python Users of Washington, DC: Zope/Plone Meeting on 8/16
by Joel Burton 13 Aug '04

13 Aug '04

ZPUGsters & everyone else: The next meeting of the Zope/Python Users Group of Washington, DC, is next Monday, at 7pm, at the usual location in downtown DC. Our topics are: - Cyrus Karbassiyoon, on the intranet he just launched for Gentry Locke Rakes and Moore LLP. He'll be talking about why they chose Plone, how they built the site, and what they learned. This should be excellent if you're considering Plone for upcoming projects. - Paul Boos, of SAIC, will be talking about the general process of getting software certified for governmental use, and about general tips for bidding on or performing government work. Upcoming schedule: ================== We have meetings twice a month: the first Thursday (a Python-in-general meeting) and the third Monday (Zope/Plone/other Python-based-webapps-specific). Our future meetings are: - Th, 9/2 (Python meeting). Topics TBD. - Mo, 9/20 (Zope/Plone meeting). Topics TBD. - Th, 10/7 (Python meeting). Topic: "Using Spambayes in a Unix/Linux environment for the Python-Oriented" (Scott Burns). Mini-presentation: TBD. - Mo, 10/18 (Zope/Plone meeting). Topic: TBD. Mini-presentation: "Re-cap of Plone Conference II" (Joel Burton). All meetings are in downtown DC, convenient to mass transporation, at 7pm. Directions at http://zpugdc.org/meetings/pn. Presenting ========== Please consider signing up for a presentation; we'd love to hear about projects you're working on, features of Zope/Plone/Python you use, interesting add-ons you want to talk about, or nearly anything else of interest to us! Also, if you haven't done so, please sign-up for our mailing list at http://zpugdc.org. Thanks, - j. Joel Burton, for the Zope/Python Users Group of DC info(a)zpugdc.org

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Database Adapter releasing database connection after request
by Florian Reiser 13 Aug '04

13 Aug '04

Hello zopistas, could anybody tell me, how I could convince ZODBCDA to close the database connection after each request? Or is there another ODBC adapter around, which can handle this. Maybe I could take parts of ZODBCDA and extend it? I need this feature because I want to be able to clean up the database and the associated tables without having to restart zope. The problem is: As long as zope holds a connection to my database, I can't get exclusive access to it. Simple kicking zope off the database isn't possible either. So I do have to do it the nice way. With kind regards Florian Reiser -- NEU: WLAN-Router f�r 0,- EUR* - auch f�r DSL-Wechsler! GMX DSL = superg�nstig & kabellos http://www.gmx.net/de/go/dsl

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Re: Zope 2.7 and scheduling
by Josef Meile 13 Aug '04

13 Aug '04

Josef Meile wrote: > --- In zope(a)yahoogroups.com, Dieter Maurer <dieter@h...> wrote: > > Gitte Wange wrote at 2004-8-8 17:25 +0200: > > > ... > > >All the stuff should be found at http://dev.legco.biz but that website > > >is down :-(( > > >Is the project discontinued or moved to some other website? > > >I really need some schedule stuff in Zope. > > > > We are using Events from Zope's CVS and a scheduler from > > Chris McDonnough (or similary spelled). > I'm also interested in replacing Xron, so, I looked for the scheduler you mentioned and found it on the cvs of zope.org; however, there isn't any README.txt nor CHANGES.txt on it. Do you or anybody else knows if there is a page of the project with this info? I didn't found it. > > I'm interested in, for example, on which products it depends -> I saw Zope complains about the Product "Event", so, I installed it, but there isn't a README with this info. I also saw that when you try to add an instance of the Scheduler, you need something called "Event service", which defaults to "portal_events". For the name, I guess it needs CMF too, right? Can't be it used without it? > > I'm also interested on knowing what bugs have been corrected. > Ok, I found that "Event Service" is available as soon as you install the "Event" Product, so, I guess you don't need CMF after all. However, after adding an instance called "portal_events" on the Root, then adding a Scheduler, and finally scheduling a task two minutes on the future with an interval of 3600 seconds (1 minute) and giving it a max age of 36000 seconds (10 minutes), it isn't triggered, the "Next Run Time" isn't updated, and there is no traceback on the zope log. Do I have to do/install something else? Thanks, Josef

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Zope 2.7.2 still doesn't run as a service in w2k
by Ausum Studio 13 Aug '04

13 Aug '04

I tried all what's currently available except to dig into Zope's win32 services machinery: I did install it manually after removing the extra underscore in "INSTANCE__HOME". I added a PYTHONPATH system variable for both the path of the alternate Python installation and the Zope software; and also I changed the PYTHONW variable within zopeservices.py to the executable of this other Python installation (which I need due to I have installed there win32all), but the service refuses to start. The event log just tells : Zope_307702503 (Zope instance at G:\Zope-Instance): process died unexpectedly. Will attempt restart after 160 seconds. If I run it manually everything is fine. Has anyone else had this same problem? Guess I ran out of stamina at this very moment ;) Ausum

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