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TinyTablePlus: get next row?
by Marcus Schopen 04 May '01

04 May '01

Hi, is there a possibility to get the next row? Thank you Marcus

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Apache/Zope: methods for serving high traffic?
by sean.upton＠uniontrib.com 04 May '01

04 May '01

Hey all, I need some deployment advice. After 2 years of doing relatively small stuff in Zope - mainly low volume apps, intranet stuff - I am at a point where a very high-traffic-volume application is about to be deployed, and I am left wondering what the best means of web-server integration is for high-traffic applications? In a nutshell, here is my set up: traffic comes in through a layer 4 load-balancer that directs traffic to 2 squid http accelerators (Sun E250s + 1GB RAM + Debian/Sparc/Linux 2.4), which proxy (with a simple perl script as a redirector or poor person's load balancer) to a farm of two web servers (VA Linux 1220 PIII/800 1CPU 512MB), which are running Apache and will be running Zope using Client storage. I have a temporary database sever that is a Sun Netra T1 105 (UltraSparc IIe 440MHz, 256MB, 10kRPM LVD SCSI disks, Debian unstable), and will acting in temporary capacity as a ZEO ZSS using FileStorage. Zope will be running using a VHM for virtual hosts. The initial application running on Zope for our site is going to be an online Classified Ad system; we are a Top 20 newspaper in a sizeable market with a lot of traffic; classifieds is a good chunk of our Monday traffic, and our app needs to scale to anticipate traffic of up to 50,000 page views an hour, all served from Zope, with about 3/4 of all page views being a ZCatalog query (search or browse, everything is done with a catalog). So, with perhaps 37,000 catalog queries an hour (or 10-15/sec), I want to make sure I set up my infrastructure to handle this. I feel that the CPU usage associated with the queries will be handled by our 2 new web servers just fine. I'm going to be setting up a cache manager for my entire site hierarchy, so I also am comfortable with the idea that all my images will be cached on the Squid boxes in front of the servers. I still have a few questions remaining in my head: 1 - Will my temporary ZSS box handle this (1CPU, 256MB)? The ODB will likely contain at most, 20,000 small object instances, most of which are subclassed from OFS:Folder. My more permanent ZSS box is a Sun E450 with 1GB Ram that will be running Linux, and I'm sure that that will be an improvement, but that box is being used for something else, and isn't available now. 2 - How do catalog queries get cached in the cache managers? Is it likely that a simple query (like 'browsing' a section of ads through a catalog query) will be cached? If I was to guess, I would think that 1/3 of all traffic is likely going to be esoteric searches that are not really useful to cache. 3 - So far, I can think of 3 ways to present my Zope apps to the public: a. [REQUEST]->(LOADBALANCER)->(SQUID+REDIRECTOR)->(APACHE)->(ZSERVER) b. [REQUEST]->(LOADBALANCER)->(SQUID+REDIRECTOR)->(APACHE)->(PCGI)->(ZOPE) c. [REQUEST]->(LOADBALANCER)->(SQUID+REDIRECTOR)->(ZSERVER) I am included to do c, but if that doesn't work out, what is anyone's experience working with a vs. b (in terms of PCGI vs. PROXY to ZServer)? Any feedback would be REALLY appreciated. One I get this in place, I would be happy to reciprocate with advice for anyone else in a similar situation... Thanks, Sean ========================= Sean Upton Senior Programmer/Analyst SignOnSanDiego.com The San Diego Union-Tribune 619.718.5241 sean.upton(a)uniontrib.com =========================

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RE: [Zope] Getting an object from id
by Etienne Labuschagne 04 May '01

04 May '01

I have used the following method successfully: parameter passed: objectId folder where I must retrieve the object with the name id from: fooFolder I use the following code: o = self.fooFolder.restrictedTraverse(objectId) This works in a Python Method (the one where you type the Python code in the browser) and is probably a valid way to do it. If there are still better ways, let me know! Etienne -----Original Message----- From: Etienne Labuschagne [mailto:etiennel@geospace.co.za] Sent: Friday, May 04, 2001 1:32 PM To: Zope user list (E-mail) Subject: FW: [Zope] Getting an object from id Hi there It is the object that is reffered to as a Python Method in the add box of the management screen. In simple terms, the one where you write the Python code in the browser window and not as an external .py file in the extensions dir. Regards Etienne -----Original Message----- From: Chris Withers [mailto:chrisw@nipltd.com] Sent: Friday, May 04, 2001 12:59 PM To: Etienne Labuschagne Cc: Zope user list (E-mail) Subject: Re: [Zope] Getting an object from id Etienne Labuschagne wrote: > > This causes an AttributeError type with value validate. This probably mean > that this way of aquiring an object is not available in Python Methods, but > only in external Python Methods. I would prefer to use a Python Method and > not an external method. Do you mean Python Method or Python Script? cheers, Chris _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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FW: [Zope] Getting an object from id
by Etienne Labuschagne 04 May '01

04 May '01

Hi there It is the object that is reffered to as a Python Method in the add box of the management screen. In simple terms, the one where you write the Python code in the browser window and not as an external .py file in the extensions dir. Regards Etienne -----Original Message----- From: Chris Withers [mailto:chrisw@nipltd.com] Sent: Friday, May 04, 2001 12:59 PM To: Etienne Labuschagne Cc: Zope user list (E-mail) Subject: Re: [Zope] Getting an object from id Etienne Labuschagne wrote: > > This causes an AttributeError type with value validate. This probably mean > that this way of aquiring an object is not available in Python Methods, but > only in external Python Methods. I would prefer to use a Python Method and > not an external method. Do you mean Python Method or Python Script? cheers, Chris

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Fwd: Re: [Zope-dev] Zope Server hanging :-( - Implement timeout
by J�lio Dinis Silva 04 May '01

04 May '01

>From: Chris Withers <chrisw(a)nipltd.com> >To: JXlio Dinis Silva <juliodinis(a)hotmail.com> >Subject: Re: [Zope-dev] Zope Server hanging :-( >Date: Fri, 04 May 2001 11:36:06 +0100 > >JXlio Dinis Silva wrote: > > > > I've implemented on my running zopes the timeoutsocket.py module > > http://www.timo-tasi.org/python/timeoutsocket.py > > -copy timeoutsocket.py to your zope home > > -on bottom of z2.py call, before the "# Start Medusa, Ye Hass!", > > > > import timeoutsocket > > timeoutsocket.setDefaultSocketTimeout(120) > > > > and after that any script you have that uses a httplib, smtplib, etc > > only runs for 120 seconds in case it falls into zombie, off course > > you can tune this period of time according to your needs. > >wow... thanks, this could be really really useful :-) > >Chris _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

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Getting an object from id
by Etienne Labuschagne 04 May '01

04 May '01

Hi there If I have the id of an object, how can I get the actual object in a Python Method? I have tried the following: o = getattr(self, "FooImage") This causes an AttributeError type with value validate. This probably mean that this way of aquiring an object is not available in Python Methods, but only in external Python Methods. I would prefer to use a Python Method and not an external method. B.T.W. I know that o=self.FooImage will work, but I want to use a parameter containing the id to get the object, eg. o = getattr(self, id). Thanks Etienne

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RE: [Zope] Uploading images - no image!
by Etienne Labuschagne 04 May '01

04 May '01

Yes, but even if I change that to image/jpeg it still doesn't show - I'll double check. Etienne -----Original Message----- From: Peter Bengtsson [mailto:mail@peterbe.com] Sent: Friday, May 04, 2001 11:18 AM To: Etienne Labuschagne Cc: zope(a)zope.org Subject: Re: [Zope] Uploading images - no image! Do you have enctype="multipart/form-data" ??? ----- Original Message ----- From: "Etienne Labuschagne" <etiennel(a)geospace.co.za> To: "Zope user list (E-mail)" <zope(a)zope.org> Sent: Friday, May 04, 2001 9:32 AM Subject: [Zope] Uploading images - no image! > Hi there > > The Python Method (not external Python Method!) below must upload an image > after being given the id, title and filename (on the client computer). This > should work the same way as the management interface based image uploading. > Somehow, this function causes the image to be created, but is seems to > contain no image data (you cannot view the image). What am I doing wrong? > > > (self is passed as the only parameter. id, title and file are set in the > calling form) > > id = self.REQUEST['id'] > title = self.REQUEST['title'] > file = self.REQUEST['file'] > > self.manage_addProduct['OFSP'].manage_addImage(id,file,title) > > return "Your image is uploaded." > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev )

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[ANN] zshell: The Zope Shell
by Jerome Alet 04 May '01

04 May '01

Hi there, I'm pleased to announce you the Zope Shell version 0.001. The Zope shell is a GPLed Python Script which makes some of the most commonly used unix shell commands available from within Zope, to manage the ZODB contents. You'll find this 155 lines script attached to this message. As for the 0.001 version which is attached to this message, the following commands are recognized: cd, cp, mv, rm, ls there are some restrictions however, and it doesn't seem to work with absolute paths, read the source for details and the future commands. zshell accepts an unlimited number of commands to launch in a single Zope transaction, so feel free to combine these five commands to do some very complicated stuff. Despite its current limitations it works fine here on Zope 2.3.2+Hotfix0501. Please feel free to send me any comment about this software. Such similar functionnality included in Zope's core would make me VERY happy. hoping this helps. Jerome Alet - alet(a)unice.fr ## Script (Python) "zshell" ##bind container=container ##bind context=context ##bind namespace= ##bind script=script ##bind subpath=traverse_subpath ##parameters= ##title=The Zope Shell ## # zshell - (c) 2001 Jerome Alet # # You're welcome to redistribute this software under the # terms of the GNU General Public Licence version 2.0 # or, at your option, any higher version. # # You can read the complete GNU GPL in the file COPYING # which should come along with this software, or visit # the Free Software Foundation's WEB site http://www.fsf.org # # author: Jerome Alet - <alet(a)unice.fr> # # # This is the Zope shell, an attempt at making the most common # Unix shell commands available from within Zope. # # As of May 3rd 2001, version 0.001, the following commands # are recognized: # # cd, rm, mv, cp, ls # # * cd accepts a single path as an argument # * rm accepts many path arguments # * mv and cp last argument is the destination folder, every previous # argument is an object id in the current folder # * ls accepts many meta types as its arguments # # The future: # # in the future I'd be interested in adding more functionnalities # as well as making it a complete Zope product, splitting it # in one method per command, and making the accepted syntax much more # match Unix shell's one. # adding support for a find command is also high on my priority list # # Feel free to send me any feedback about this software at: alet(a)unice.fr # import string def toObject(curdir, path) : import string path = string.strip(path) if path[0] == '/' : path = path[1:] while hasattr(curdir, 'aq_parent') and (curdir.aq_parent is not None): curdir = curdir.aq_parent components = filter(None, string.split(path, '/')) for component in components : if component == '.' : continue elif component == '..' : if hasattr(curdir, 'aq_parent') and (curdir.aq_parent is not None): curdir = curdir.aq_parent elif hasattr(curdir, component) : curdir = curdir[component] else : return None # Error return curdir print context.standard_html_header.document_src() if context.REQUEST.has_key("commands") : commands = filter(None, context.REQUEST["commands"]) else : commands = [] print '<form action="zshell" method="POST">' print 'Enter your commands below: ' print '<textarea rows="10" cols="50" wrap="physical" name="commands:lines">%s</textarea>' % string.join(commands, '\n') print ' <input type="submit" name="run" value="Run !" />' print '</form>' if commands : print '<hr noshade="noshade" width="33%" />Results:' current = context for command in commands : cmd = command[:2] print ' %s: ' % cmd if cmd == 'cd' : path = command[3:] newdir = toObject(current, path) if (newdir is not None) and hasattr(newdir, 'meta_type') and (newdir.meta_type == 'Folder') : current = newdir print 'New folder is /%s' % newdir.absolute_url(relative=1) else : print 'Incorrect path %s' % path print '[%s]' % repr(newdir) elif (cmd == 'mv') or (cmd == 'cp') : args = string.split(command[3:]) if len(args) < 2 : print 'Incorrect number of arguments' else : dst = args[-1] srcs = args[:-1] objids = [] for src in srcs : if '/' in src : print 'Paths in source objects are not allowed at this time: %s' % src else : objids.append(src) dsto = toObject(current, dst) if dsto is None : print 'Incorrect destination argument %s' % dst continue if dsto.meta_type != 'Folder' : print 'Destination %s is not a folderish object' % dst continue if cmd == 'cp' : clipboard = current.manage_copyObjects(ids = objids) action = 'copied' else : clipboard = current.manage_cutObjects(ids = objids) action = 'moved' dsto.manage_pasteObjects(cb_copy_data = clipboard) for oid in objids : print ' %s %s' % (oid, action) elif cmd == 'rm' : objpaths = filter(None, string.split(string.strip(command[3:]))) for objpath in objpaths : object = toObject(current, objpath) if object is None : print 'Incorrect path %s' % objpath else : if hasattr(object, 'aq_parent') : object.aq_parent.manage_delObjects(ids = [object.getId()]) print " /%s removed" % object.absolute_url(relative=1) elif cmd == 'ls' : metatypes = filter(None, string.split(string.strip(command[3:]))) if metatypes : objects = current.objectValues(metatypes) else : objects = current.objectValues() if objects : print '<table border="1"><tr><th>Id</th><th>Title</th><th>MetaType</th></tr>' for object in objects : title = object.title or ' ' print '<tr><td>%s</td><td>%s</td><td>%s</td></tr>' % (object.getId(), title, object.meta_type) print '</table>' else : print 'Unknown command %s' % command print '' print context.standard_html_footer.document_src() return printed

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Upgrade path from 2.2.2 and PTK
by Paul Winkler 04 May '01

04 May '01

Hi, OK, I have a site I've been working on for months that's based on Zope 2.2.2 and PTK 0.8.2. That's what was current when I got started. Now I want to update things a bit before I put this on a production server. My site is a heavily-customized version of the DemoPortal from PTK 0.8.2. Well, now you guys are up to Zope 2.3.2 and CMF 1.0. Can anyone recommend the safest, least painful procedure for upgrading my stuff? Once I get Zope upgraded, can I just install CMF alongside PTK and migrate things over piecemeal? (I'll probably have to do it a bit at a time, as I've customized quite a lot of PTK...) -- ................... paul winkler .................... custom calendars & printing: http://www.calendargalaxy.com A member of ARMS: http://www.reacharms.com home page: http://www.slinkp.com

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RE: [Zope] #include with DocumentTemplate?
by Randall F. Kern 04 May '01

04 May '01

>From you original mail I think you've just pulled the DocumentTemplate module from Zope, and are using it in your own Python CGI. Assuming that's the case, you need to write a dtml-include tag to do this. It'll be pretty easy, but one doesn't exist out of the box, at least not that I've ever found. -Randy > -----Original Message----- > From: Andy McKay [mailto:andym@ActiveState.com] > Sent: Thursday, May 03, 2001 5:34 PM > To: zope(a)zope.org; Lance E Sloan > Subject: Re: [Zope] #include with DocumentTemplate? > > > > I'm writing some CGIs in Python and I borrowed the DocumentTemplate > > So you aren't using Zope and the ZODB in a traditional way. > This is just > importing the DocumentTemplate in a python CGI script? If its > the latter I > dont know... > > Cheers. > -- > Andy McKay. > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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