- Zope - Zope lists

RE: [Zope] NULL columns
by Jeffrey Shell 20 May '99

20 May '99

You don't need to use the expr syntax. If you do::  the test fails on both NULL and Blank values. Note that it also fails on 0 (zero) since that's also an untrue expression, so there you might want to use an expression. NULL values are turned into "MissingValue" objects. I can't remember much offhand about the internals of MissingValue, but I do know that it allows safely the ability to do most any operator on it and it won't raise an error like the None object will. -----Original Message----- From: Jeff Nielsen [mailto:jeffniel@ix.netcom.com] Sent: Wednesday, May 19, 1999 1:45 AM To: Zope Subject: [Zope] NULL columns How do I test if a variable queried from a database (MS SQL Server) is NULL or blank? For the blank, I can use , and it works fine. However, this test fails for NULL (It branches true when it should branch false...) _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

1 0

Re: [Zope] FYI: News from the front
by Tom Deprez 20 May '99

20 May '99

I wish all good luck at the Linux Expo!

1 0

[Fwd: [Zope] another ?], can someone help me with this
by Chad M. Townsend 20 May '99

20 May '99

1 0

Zope and apache
by Stefan Thull 20 May '99

20 May '99

Hello, I'm a Zope-newbie (inspired by Linux-Magazine article) and tried to install Zope with my apache-server. If I try to run lynx http://localhost:8998/cgi-bin/Zope.cgi/manage I get a "Can't access startfile http://localhost:8998/" If I try lynx http://localhost/cgi-bin/Zope.cgi/manage I get: The resource you requested is temporarily unavailable - please try again later. (102) failure during connect PS. Hope this question is not too stupid: Is it necessary, that port 8998 is in /etc/services? Because there is no entry with this number? If this is a FAQ please give me a hint where to find the solution. Thank you very much, waiting <unpatiently> to use Zope Stefan Thull

2 2

OT: Server Question
by Jimmie Houchin 20 May '99

20 May '99

I am about to purchase a server to host my website. It will eventually be placed at my isp for colocating. My question is this. I am not buying a modem for this server. If I were to connect my home computer to this server via ethernet and developed my Zope site on this server, while in development could ZServer access the internet (provided I am currently connected) through my Mac's modem? I need to access the internet for data while developing my site. In fact part of the functionality is gathering information off of the net. So this needs to be done from within Zope and ZServer. Server info: Redhat 6.x, Zope, ZServer This will just determine whether I can develop in this manner or if I will develop in LinuxPPC on my Mac and move the /var and /Products directorys over to the server. Thanks for any help. Jimmie Houchin

2 1

RE: [Zope] OT: Server Question
by Rob Page 20 May '99

20 May '99

> I am not buying a modem for this server. If I were to connect my home > computer to this server via ethernet and developed my Zope > site on this > server, while in development could ZServer access the > internet (provided I > am currently connected) through my Mac's modem? AFAIK, only if your Mac was running some sort of Network Address Translation (NAT) software. Linux does this rather well (embarassingly, when we moved offices recently the whole LAN was dialed into a single ISP account at something like 44kbps using RH5.2). I think there is a NAT How-To in the Linux Doc Project... I think... --Rob

1 0

Re: [Zope] Customizing management screens for different users/roles
by Christopher Petrilli 20 May '99

20 May '99

> I need to let users edit parts of a site, and I want to use the management > interface rather than write a 'dumbed down' interface for them. But I don't > want these users to see anything they are not supposed to use or know. > > First, I don't want users to be able to access foo/manage, but only > foo/manage_main. But if I add permission to access the management interface > to a user, then foo/manage is accessible. > > Second, if a user does not have permission to change security for an > object, I want the Security tab not to appear at all. Also, I don't want > the Help tab to appear. Is it possible to control what  creates? Fortunately, while Guido wasn't looking, Jim borrowed his time machine, and 2.0 includes the concept of manage_workspace, which is a "filtered" view on the management screens. It allows you to define situations where even anonymous users might be allowed to see some of the management interface. I haven't delved into this (other than a discussion of what the implication is for changing roles), but you should look in 2.0.0a1 at manage_workspace, and see the way it creates tabs (filter_tabs, or some such, though I don't recall off the top of my head). This will let you do exactly what you want. Chris -- Christopher Petrilli Digital Creations petrilli(a)digicool.com

2 1

print debugging info / tracebacks
by Oleg Machulski 20 May '99

20 May '99

Hello! I just could not find out how to retrieve traceback of DTML methods execution from zope. Here I assume the following construction: index_html contains line  method_A contains line  method_B contains line  so the questions is HOW to write external python method print_traceback(self), which will return list, consisting of ['index_html', 'method_A', 'method_B'] ?????????? -- Best regards Oleg Machulski ---------------------------------------------------- http://www.geocities.com/SiliconValley/Network/7671/ mailto:oleg_machulski@geocities.com

1 0

Zope in German Linux mag
by Alex.Thomas＠dresdnerkb.com 20 May '99

20 May '99

Is this news? Anyway, there's a long article describing Zope by Tom Riedl in June's Linux Magazin (in German). cheers Alex ########################################## This email, its content and any files transmitted with it are intended solely for the addressee(s) and may be legally privileged and/or confidential. Access by any other party is unauthorised without the express written permission of the sender. If you have received this email in error you may not copy or use the contents, attachments or information in any way. Please destroy it and contact the sender on the number printed above, via the Dresdner Kleinwort Benson switchboard on +44 171 623 8000 or via e-mail return. Internet communications are not secure unless protected using strong cryptography. This email has been prepared using information believed by the author to be reliable and accurate, but Dresdner Kleinwort Benson makes no warranty as to accuracy or completeness. In particular Dresdner Kleinwort Benson does not accept responsibility for changes made to this email after it was sent. Any opinions expressed in this document are those of the author and do not necessarily reflect the opinions of the Bank or its affiliates. They may be subject to change without notice. ##########################################

6 6

RE: [Zope] zope transactions
by Paul Everitt 20 May '99

20 May '99

Just to clarify. ZServer lets you publish to HTTP, FTP, PCGI, FastCGI (etc.) *simultaneously*. Thus ZServer still integrates with Apache, just in a concurrent, multi-threaded way. The publishers in Zope1 were not concurrent. If you want to use the database by itself sans an IP server, that also is multithreaded. In short, Zope2 does what you're asking for. --Paul > -----Original Message----- > From: Jay, Dylan [mailto:djay@lucent.com] > Sent: Thursday, May 20, 1999 12:04 AM > To: 'Jim Fulton'; Jay, Dylan > Cc: 'zope(a)zope.org' > Subject: RE: [Zope] zope transactions > > > I've been reading the Zope 2.0 notes. It states that Zope 2.0 is > multi-threaded only if used with ZServer. Will that always be > the case or is > that just a temporary limitation? > > > -----Original Message----- > > From: Jim Fulton [mailto:jim@digicool.com] > > Sent: Wednesday, May 19, 1999 23:12 > > To: Jay, Dylan > > Cc: 'zope(a)zope.org' > > Subject: Re: [Zope] zope transactions > > > > > > "Jay, Dylan" wrote: > > > > > > Would I be right in saying that when zope is executing an > > external method > > > all other requests are blocked? What about sql transactions? > > > > Zope 1.x is single threaded. Zope 2.0, which will be > > releases in alpha > > later today is multi-threaded. Note that extension modules that > > have operations that take a long time (e.g. database interfaces) > > need to take certain measures (releasing Python's global > > interpreter lock) > > to avoid blocking other threads. > > > > > My site seems to be experiencing some long lags in getting > > a page. Is there > > > anyway to improve this? > > > > Zope 2 should help alot. > > > > Jim > > > > -- > > Jim Fulton mailto:jim@digicool.com Python > Powered! > > Technical Director (888) 344-4332 http://www.python.org > Digital Creations http://www.digicool.com http://www.zope.org > > Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email > address may not be added to any commercial mail list with out my > permission. Violation of my privacy with advertising or SPAM will > result in a suit for a MINIMUM of $500 damages/incident, $1500 for > repeats. > _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

1 0