December 1999 - Zope

RE: [Zope] Zope woes continue - server going down regularly.
by Toby Dickenson 07 Dec '99

07 Dec '99

> -----Original Message----- > From: Jim Fulton [mailto:jim@digicool.com] > - Look at the "debug" screen at Control_Panel/manage_debug. Very helpful. I never knew that was there

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we're just starting -- man this is a cool dev envir.
by B. Todd Kleinert II 07 Dec '99

07 Dec '99

I've been on the mail list for a few days now - and noticed that there is a 'missing trait' that I thought I could 'help' with... To the Zope developers: Great work -- you've built an excellent environment!! Keep it up! Thanks!! warewolf(a)litestep.com

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ZClass class attributes
by itamar＠attable.com 07 Dec '99

07 Dec '99

How can I add / access class properties of a ZClass? I want an attribute that all instances can access and can be changed in one central location for all of them - a property of the ZClass itself, basically. So how can this be done?

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Virtual Hosts with Apache+Zope
by Edin Dizdarevic 07 Dec '99

07 Dec '99

Hello there! Really nice thing our Zope. After solving some problems I would like to bring a small contribution. I send You this document and You must decide if the content is interessting enough for publishing it. Well: We use a German Linux distribution SuSE 6.2 with Apache 1.3.6. We use Zope 2.0.1 under it to serve our dynamic content and take advantage of beatiful Zope products like ZCatalog, Squishdot, TinyTable and so on. The machine is a Dual Celeron 400 on a Abit BP6-Board, software RAID 1 and 128M. The problem was to serve severe domains, some Content from Zope and some CGI stuff from Apache. No further instances of Apache or Zope are to run. First of all you have to set the aliasing - means one network device speaking to 3 or 4 IP numbers. After setting the first IP number you can add further IPŽs with an ifconfig call put at the end of the /etc/rc.d/network file, which after that is looking like this: # #Von Edin angepasst um aliasing zu erweitern # ifconfig eth0:0 192.168.1.136 broadcast 192.168.1.255 netmask 255.255.255.0 ifconfig eth0:1 192.168.1.137 broadcast 192.168.1.255 netmask 255.255.255.0 ifconfig eth0:2 192.168.1.138 broadcast 192.168.1.255 netmask 255.255.255.0 ifconfig eth0:3 192.168.1.139 broadcast 192.168.1.255 netmask 255.255.255.0 after that you should run ifconfig and get something like this: root@guzzi:/home/edin > ifconfig eth0 Link encap:Ethernet HWaddr 00:10:5A:71:E4:CE inet addr:192.168.1.135 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:93393 errors:0 dropped:0 overruns:0 frame:0 TX packets:50357 errors:0 dropped:0 overruns:0 carrier:0 collisions:26199 txqueuelen:100 Interrupt:10 Base address:0xd400 eth0:0 Link encap:Ethernet HWaddr 00:10:5A:71:E4:CE inet addr:192.168.1.136 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xd400 eth0:1 Link encap:Ethernet HWaddr 00:10:5A:71:E4:CE inet addr:192.168.1.137 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xd400 eth0:2 Link encap:Ethernet HWaddr 00:10:5A:71:E4:CE inet addr:192.168.1.138 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xd400 eth0:3 Link encap:Ethernet HWaddr 00:10:5A:71:E4:CE inet addr:192.168.1.139 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:10 Base address:0xd400 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:3924 Metric:1 RX packets:28 errors:0 dropped:0 overruns:0 frame:0 TX packets:28 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 This was the easy part. I will not explain how to set the RAID system. Not here - bit if someone wants to know how to manage that I will be glad to help. We have several WWW-Servers which we want to put on one Zope server. In addition we want to install Minivend Online-Shop-System, so we definetly need Apache. Next, I had to reconfigure Apache with all that rewrite rules and stuff. So this is what I put in my /etc/httpd/httpd.conf: This is what you have to do if you have SuSE. I donŽt know about RedHat. The problem is "Options +ExecCGI"-line. There is another Tip/HOWTO-Document explaining the solution. This is working. <Directory "/usr/local/httpd/cgi-bin"> AllowOverride None Options +ExecCGI Order allow,deny Allow from all </Directory> This is the interesting part: <VirtualHost 192.168.1.136> ServerName site1.intern.de DocumentRoot /usr/local/httpd/htdocs/site1/ ScriptAlias /cgi-bin/ /usr/local/httpd/cgi-bin/site1/ RewriteEngine on RewriteLog /var/log/rewrite.log RewriteLogLevel 0 RewriteCond %{HTTP:Authorisation} ^(.*) RewriteRule ^(.*) /usr/local/httpd/cgi-bin/site1/Zope.cgi/$1 \ [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,l] </VirtualHost> <VirtualHost 192.168.1.137> ServerName site2.intern.de DocumentRoot /usr/local/httpd/htdocs/site2/ ScriptAlias /cgi-bin/ /usr/local/httpd/cgi-bin/site2/ RewriteEngine on RewriteLog /var/log/rewrite.log RewriteLogLevel 0 RewriteCond %{HTTP:Authorisation} ^(.*) RewriteRule ^(.*) /usr/local/httpd/cgi-bin/site2/Zope.cgi/$1 \ [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,l] </VirtualHost> <VirtualHost 192.168.1.138> ServerName site3.intern.de DocumentRoot /usr/local/httpd/htdocs/site3/ ScriptAlias /cgi-bin/ /usr/local/httpd/cgi-bin/site3/ RewriteEngine on RewriteLog /var/log/rewrite.log RewriteLogLevel 0 RewriteCond %{HTTP:Authorisation} ^(.*) RewriteRule ^(.*) /usr/local/httpd/cgi-bin/site3/Zope.cgi/$1 \ [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,l] </VirtualHost> All the last lines must be one, of course. We almost made it. The problem now is to redirect the calls comming from Apache. There is probably another way with Rewrite-Rules but I found this one quite comfortable and I learned something more about Zope's variables and how to handle them. No matter what you type, you always get the root index_html. That's not the right thing. I want people if they type www.site1.de to gho directly to Zope's subfolder /site1. With few ifs you are the winner. Try putting this in your index_html: <dtml-var standard_html_header> <dtml-if "SERVER_URL=='http://site1.intern.de'"> <dtml-with site1> <dtml-call "RESPONSE.redirect('/site1/index_html')"> </dtml-with> </dtml-if> <dtml-if "SERVER_URL=='http://site2.intern.de'"> <dtml-with site2> <dtml-call "RESPONSE.redirect('/site2/index_html')"> </dtml-with> </dtml-if> <dtml-if "SERVER_URL=='http://site3.intern.de'"> <dtml-with site3> <dtml-call "RESPONSE.redirect('/site3/index_html')"> </dtml-with> </dtml-if> <dtml-var standard_html_footer> ThatŽs it. A week for me, for all other people now 5min ;). Have fun... Edin Dizdarevic edin(a)tfh-berlin.de edin(a)ipo.de edind(a)gmx.de

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Automatically Populating the title Property on html files imported via ftp
by Rik Hoekstra 07 Dec '99

07 Dec '99

> > > > > > I've been trying to figure out a way to do this and have been > > > banging my head > > > against the wall. The end user still want's to edit the site > > > with dreamweaver > > > but needs the titles to show up in the catalog search. > > > When using the ftp interface you lose properties that have > > > been set, and you > > > have nothing set on new documents. > > > Any suggestions? > > > > If you want to work really hard, you could create your own kind of > > object that parsed the title out of the HTML that gets FTPed up. > > > > Other than that, I can't think of any better way than getting an > editor > > that speaks HTTP in a scriptable way or XML-RPC. > > > > -Michel > > > > A colleague of mine wrote up an object that sucks files of the local > filesystem, replaces the start of the doc with <dtml-var > standard_html_header> and the bottom with footer, and nicks whatever is > within <TITLE></TITLE> to make the Title property of the DTML-doc.. > Works rather neatly, but is still in development.. > I'll talk to him about making it a product if it is stable and someone > are interested.. Doesn't help you with ftp, though .. AFAIK this is already included with the zope distribution. Look for <zope root>/utilities/load_site.py. This only works with the filesystem and not for ftp, but you might use it in some way. Rik

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Why can't this be done???
by Jochen Haeberle 07 Dec '99

07 Dec '99

Hi, please forgive my probabyl stupid questions... but I am doing my first steps in Zope and unfortunately, I do not have an python background. I am working on a Newssystem. Editors are going to publish articels, related materials and pictures and are given the choice to add a poll and/or a discussion to their articel. I wanted to include the main discussion page of ZDiscussion or the included ZDConfera on the page of the articel itself, not just link to it. Therefore I created a folder for my articel, and put a ZDiscussion topic, named disc, inside. In my article page, I tried <dtml-with disc> <dtml-var index_html> </dtml-with> This gives a key error even the most simplest form (although I doubt this should work correctly) <dtml-var disc.index_html> does return an error. Why is the ZDiscussion folder something special??? What's wron about my tries? Is there a way to do what I want? Jochen

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Databases and zope
by Alwyn Schoeman 07 Dec '99

07 Dec '99

Hi, Do most of the Zope products use the ZODB as a database? If so why? and how easy is it to use say Postgres or MySQL instead of ZODB for Squishdot e.g.? -- ~~~~~~~~~~~~~~ Alwyn Schoeman Systems Engineer Prism Secure Solutions

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RE: [Zope] Automatically Populating the title Property on html fi les imported via ftp
by Michel Pelletier 07 Dec '99

07 Dec '99

> -----Original Message----- > From: Chris McClimans [mailto:chris@mcclimans.net] > Sent: Monday, December 06, 1999 5:44 PM > To: zope(a)zope.org > Subject: [Zope] Automatically Populating the title Property on html > files imported via ftp > > > I've been trying to figure out a way to do this and have been > banging my head > against the wall. The end user still want's to edit the site > with dreamweaver > but needs the titles to show up in the catalog search. > When using the ftp interface you lose properties that have > been set, and you > have nothing set on new documents. > Any suggestions? If you want to work really hard, you could create your own kind of object that parsed the title out of the HTML that gets FTPed up. Other than that, I can't think of any better way than getting an editor that speaks HTTP in a scriptable way or XML-RPC. -Michel

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RE: [Zope] Return values for html display?
by Michel Pelletier 07 Dec '99

07 Dec '99

> -----Original Message----- > From: jiva(a)devware.com [mailto:jiva@devware.com] > Sent: Sunday, December 05, 1999 1:32 AM > To: zope(a)zope.org > Subject: [Zope] Return values for html display? > > > So, I have set up some external methods that do some stuff, and I > ultimately want to display html from them. However, I find the only > way I can do this is to return it from my function. print() seems > only to send it to the zserver log. Actually, it writes it to stdout, which end up in the logs. > Soooo, my question is, is this by > design? Yes. > Is there some way to get print() to actually shoot html to > the page the end user sees? Probably not. > Is there a reason I wouldn't want to do > this? No, it's quite useful. What you're looking for is RESPONSE.write(). Note, error's don't get sent to the browser in their usualy nicely formated way if you use RESPONSE.write(). Everything else works the same however (ie, the transaction gets aborted, the exception can be caught by a <dtml-try> etc..) -Michel

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RE: [Zope] Urgent - server down.
by chas 07 Dec '99

07 Dec '99

>> Well, it's been a nightmare day for Zope on our box. >> Does it self destruct when Data.fs reachs a certain >> size or something ? > >There are no built-in limits on Data.fs size. Your OS may have one >however. How big is the file? Small - 50 MB. My above comment was more of an inane introduction, sorry. I didn't really think this could be the cause. >> "Temporarily Unavailable >> The resource you requested is temporarily unavailable - >> please try again >> later. >> (116) unable to connect, fd=3 " > >PCGI cannot connect to Zope. Can you connect to ZServer? No, we could not connect to the Zserver directly. >> Alternatively, the server just hangs and doesn't respond >> (but ps -aux shows the process is running). > >Is it spinning? (consuming 100% CPU resources?) or hung? (consuming >none..) Sorry, you're right, it was 'spinning' - 100% CPU resources. Does that suggest anything in particular ? When this first occured, I restarted Zope. That solved the problem for a few hours but problems kept recurring. Last night I restarted the server and since then it has been OK (for the past 8 hrs) ... but I'm anxious how it will stand up to being put under load again today. chas

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