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Zope vs. other app servers. Any comparison available?
by Satheesh Babu 19 Mar '01

19 Mar '01

Hi, We use Zope a lot. However, there are some schools of thought that since MacroMedia has bought Allaire, it is going to be *the* web app development platform (personally, I think you can't compare Cold Fusion to Zope). So, are there any web sites that compare Zope vs. ASP, PHP, Cold Fusion, Java app servers? If this is "suite" friendly, better! Even other wise, if you've any pointers to existing documents, that would be of great help. TIA V. Satheesh Babu sbabu(a)tnc.org

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Re: Fwd: [Zope] Using psycopg connections directly
by Federico Di Gregorio 19 Mar '01

19 Mar '01

Scavenging the mail folder uncovered Paolo Comitini's letter: > Because psycopg is advertised as having a per-cursor commits, initially I > just did the same thing in my code as a Z SQL Method would do: call the > database object for a connection and run query() on it. However, it turned > out that when multiple threads did this, one thread's commit would also > commit work on another thread. This is probably due to the fact that the > psycopg DB class commits on the connection, not on the cursor it used. if you want to use the per-cursor commit extension of psycopg, you need to call the .commit() method on the *cursor*. calling it on the connection will commit on all the cursors derived from the connection. > So I now grab a cursor, and register that (inside a wrapper) with the > transaction manager, for every query. The finish/abort code does a > commit/rollback and then a cursor.close() (shortly after that, the GC > destroys the cursor). However, I seem to be leaking connections, because the > number of in-use connections quickly goes up and Postgres starts > complaining. There's probably some interaction between what I do and psycopg > that I don't understand. note that psycopg open one connection for every cursor (that will change in the near future) so, if you don't set a maxconn value on the connection but keep creating cursors, you'll finish with an hight number of phisical db connections (maxconn is about 32 by default.) > Would anyone have a suggestion as to how I could use psycopg Z Database > connections from Python code in such a way that everything works smoothly? > What's the Zope model anyway - does it instantiate one Z connection per > thread or do all the threads use the same connection and should the > connection figure it out by itself? mmm... i think that zope instantiate a connection for every thread. in the psycopg case, every zope thread gets one connection and one cursor. hope this helps, ciao, federico -- Federico Di Gregorio MIXAD LIVE Chief of Research & Technology fog(a)mixadlive.com Debian GNU/Linux Developer & Italian Press Contact fog(a)debian.org Qu'est ce que la folie? Juste un sentiment de liberté si fort qu'on en oublie ce qui nous rattache au monde... -- J. de Loctra

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MS Explorer no longer shows the management interface.
by Echlin, Michael 19 Mar '01

19 Mar '01

Hi, This morning I installed a few upgrades to MS 98 (Internet Explorer 5.01 Service Pack 1) and when I go to my Zope site I can no longer see the management pages. The right frames are displayed and the navigation tree, but instead of the management screen for a folder I get the view contents. Any Ideas? Mike Echlin CP/SA/CM AECL Control and Operations Technology echlinm(a)aecl.ca

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Can't get 2.3.1b2 sparc to run
by Daniel Rusch 19 Mar '01

19 Mar '01

All, Any body have any ideas why I can't get 2.3.1b2 sparc to run. I download the tar ball, unzipped it, ran install, untar'd some products and ran start I get a bunch of error messages like below for each core product? ------ 2001-03-19T17:06:23 ERROR(200) Zope Couldn't install OFSP Traceback (innermost last): File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/OFS/Application.py, line 627, in install_products (Object: ApplicationDefaultPermissions) (Info: OFSP) File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/Products/OFSP/__init__.py, line 189, in initialize File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/App/ProductContext.py, line 365, in registerHelp File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/App/ProductContext.py, line 298, in registerHelpTopic File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/OFS/ObjectManager.py, line 300, in _setObject (Object: Traversable) File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/HelpSys/HelpTopic.py, line 152, in manage_afterAdd (Object: HelpTopicBase) File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/HelpSys/HelpTopic.py, line 165, in index_object (Object: HelpTopicBase) File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/Products/ZCatalog/ZCatalog.py, line 424, in catalog_object (Object: Traversable) File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/Products/ZCatalog/Catalog.py, line 442, in catalogObject File /home/Zope-2.3.1b2-solaris-2.6-sparc/lib/python/SearchIndex/UnTextIndex.py, line 335, in index_object SystemError: error return without exception set

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Re: [Zope] why does manage_addDocument give me a method?
by Dieter Maurer 19 Mar '01

19 Mar '01

Bernd Worsch writes: > Another thing that seems strange to me: > > When calling > > <dtml-with SomeFolder> > <dtml-call expr="manage_addDocument('SomeDocument','')"> > </dtml-with> > > i get a dtml-method called SomeDocument instead of a dtml-document!! > > Is this behaviour ok? If yes how can i get documents? See "OFS.Document".... It is depraceted. Dieter

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Re: [Zope] <dtml-sendmail>
by Dieter Maurer 19 Mar '01

19 Mar '01

Petr Knapek writes: > I have a list of user e-mail addresses which is created dynamically. I > would like to use <dtml-sendmail> tag to send an e-mail at all addresses > in my dynamical list but do not know what the syntax of mailto attribute > in sendmail tag shoul be.=20=20 Do not use the "mailto" attribute, use the "To:" header in the send mail, similar to: <dtml-sendmail mailhost=...> To: <dtml-var expr="_.string.join(address_list,',')"> .... ATTENTION: This is indented only for readability. In your DTML code, "To:" must start in the first column! Dieter

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Re: [Zope] freebsd error
by Dieter Maurer 19 Mar '01

19 Mar '01

Chris Humphries writes: > i have python 1.5.2 (threads), freebsd, and zope installed (tryeed > differenmt versions, so i know this is not an version issue). > ... > ImportError: /usr/local/www/Zope-2.0.0b5/lib/python/ExtensionClass.so: > Undefined symbol "PyMethod_Type" I have seen this on the mailing list (--> searchable archives, Google). The poster, apparently, found a solution.... Dieter

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Re: [Zope] dtml-sendmail and envelop sender [Q]
by Dieter Maurer 19 Mar '01

19 Mar '01

Frank Tegtmeyer writes: > > The Internet mail message specification (RFC 822) defined > > a header to control error reports. > > That's wrong. Errors go to the envelope sender. There are > many, many bad gateways that do it wrong but there number still > doesn't make it right. Quoted from RFC822: : 4.4.4. AUTOMATIC USE OF FROM / SENDER / REPLY-TO : : For systems which automatically generate address lists for : replies to messages, the following recommendations are made: : : o The "Sender" field mailbox should be sent notices of : any problems in transport or delivery of the original : messages. If there is no "Sender" field, then the : "From" field mailbox should be used. : Dieter

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newbie zope question -- stuck in quick-start page
by Sundar Narasimhan 19 Mar '01

19 Mar '01

Hi, I finally thought I had some time to play w/ zope, but it's turning out to be more confusing than I thought. The install/startup go smoothly (as the documentation says). Oh, I'm running the stable version off of zope.org (not the dev. version) on NT using the command line. But when I click on the root folder, I don't see the tabs as the documentation says I should. And no matter which node I click "under" the root folder, I'm always led to what looks like the "zope quick start" page. And quite obviously I'm still hunting for the add button :) Actually Root Folder/Control_Panel/Products/ZopeTutorial all behave this way.. but when I click on Help "under" the last, I see a listing of help documents. So .. what's wrong? I did check some of the resources on zope.org, but couldn't find anything relevant. Zope looks great.. but I guess I'm having glitches right out of the gate which probably should be in a FAQ someplace?

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Re: [Zope] dtml-sendmail and envelop sender [Q]
by Dieter Maurer 19 Mar '01

19 Mar '01

Bruno Mattarollo writes: > ... > We need this email to display the FROM header as from the user that filled > in the form, so we use to have something like this: > <dtml-sendmail MailHost=3D"<our mailhost>"> > From: <dtml-var SenderFromForm> > To: <dtml-var EmailOfYourCongresMan> > =2E.. and so on ... > > But the issue is if by any of this bad things of life, the email of the con= > gresman > is down the bounce will go the the cyberactivist email account (SenderFromF= > orm)! The Internet mail message specification (RFC 822) defined a header to control error reports. I think, it is "Error-To", but I am not sure. Please check the spec. Dieter

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