July 1999 - Zope - Zope lists

ZServer FTP and aquisition problem
by Alex Rice 19 Jul '99

19 Jul '99

Hi, we just noticed that sometimes with FTP, aquisition can get in the way when recursively uploading folders. This is a problem when a folder by the same name already exists and is aquired. Here is an example from my logfile: 206.183.203.184:2067 <== CWD /taoswebb/import 206.183.203.184:2067 ==> 250 CWD command successful. 206.183.203.184:2067 <== CWD news ["news" was aquired-- it doesn't exist in import/!] 206.183.203.184:2067 ==> 250 CWD command successful. 206.183.203.184:2067 <== PORT 206,183,203,184,128,63 206.183.203.184:2067 ==> 200 PORT command successful. 206.183.203.184:2067 <== STOR taoswebb_masthead2.gif 206.183.203.184:2067 ==> 150 Opening Binary connection for taoswebb_masthead2.gif 206.183.203.184:2067 ==> 426 Error creating file. [why does this fail? Here is a successful one: ] 206.183.203.184:2067 <== CWD /taoswebb/import 206.183.203.184:2067 ==> 250 CWD command successful. 206.183.203.184:2067 <== CWD rec_index 206.183.203.184:2067 ==> 550 No such directory. 206.183.203.184:2067 <== MKD rec_index 206.183.203.184:2067 ==> 257 MKD command successful. 206.183.203.184:2067 <== CWD rec_index 206.183.203.184:2067 ==> 250 CWD command successful. 206.183.203.184:2067 <== PORT 206,183,203,184,128,64 206.183.203.184:2067 ==> 200 PORT command successful. 206.183.203.184:2067 <== STOR taoswebb_masthead2.gif 206.183.203.184:2067 ==> 150 Opening Binary connection for taoswebb_masthead2.gif Maybe ZServer should not use aquisition when responding to CWD? -- Alex Rice | alrice(a)swcp.com | http://www.swcp.com/~alrice Current Location: N. Rio Grande Bioregion, Southwestern USA

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Addressing directories below current
by Graham Chiu 19 Jul '99

19 Jul '99

I would like to cut the clutter in my directories, so have tried storing fragments of sql statements in lower directories. Now if the dtml is in the current directory it works fine. eg update main where  but if I try this  it likes it not. ------- Regards, Graham Chiu gchiu<at>compkarori.co.nz

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0-day PACK, site gone
by Aaron Rubin 19 Jul '99

19 Jul '99

In the management screen I use PACK and lost everything, I can no longer even manage the server to reload the pages. I thought reloading Data.bbb would restore the functions, but it didn't. Any ideas? I'm working on a remote host. Thanks. --Aaron

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Adding documents in Zclasses
by Bill Anderson 19 Jul '99

19 Jul '99

Ok, I've finally been futzin aorund with ZClasses. Wow, these are great! But, of course, I have aquestion. I have a folder-like object that I need to add some things to when created. I can add directories just fin, as well as blank(default) documents by modfying the constructor. The problem is, I need to add documents that have specific content. Such as: --- begin Hello----  <p>Hello, my name is . <p> Would you like to play a game?  ---end Hello-- This does not work if I put the above in the data section of manage_addDTMLDocument(id,title,data). Would I best be served by putting it into a file and then have the constructor upload it? If so, how? Where would it look for the file? Thanks. __ Bill Anderson

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RE: [Zope] dtml question: xrange?
by Alexander Staubo 18 Jul '99

18 Jul '99

For this and any other operation not directly supported by the DTML "API", you can write External Methods to provide the service. In this case, a function such as: def XRange(start, stop, step): return xrange(start, stop, step) would do it. -- Alexander Staubo http://www.mop.no/~alex/ "What the hell, he thought, you're only young once, and threw himself out of the window. That would at least keep the element of surprise on his side." --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_ >-----Original Message----- >From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On >Behalf Of Kevin >Lewandowski >Sent: 19. juli 1999 01:00 >To: zope(a)zope.org >Subject: [Zope] dtml question: xrange? > > >Is there a way to generate a range in dtml? (like the python xrange() >function) Specifically, I want to iterate from 0 to a variable >(comes from >a form) using the #in tag. > >I couldn't find anything about this in the docs. > >any ideas? > >thanks, > >Kevin > >_______________________________________________ >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 ) >

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RE: [Zope] Lets try this again - auto-creation
by Alexander Staubo 18 Jul '99

18 Jul '99

>Alexander Staubo <alex(a)mop.no> writes: > >> You can store a "last ID" counter as an int property on the top-level >> folder, and increment that for every object you create. >> >> Under Zope2 the counter must be thread-safe, which means >you've got to >> borrow of Zope's global -- I think -- thread locks. >> > >If the object is persistent, like a property, it is automaticly thread >safe. Thread safe yes, but not atomic. In other words, the operation (done in an External Method or whatever) NewObjectId = Counter = Counter + 1 isn't atomic. This is really not of relevance here since only a _unique_ object ID is desired -- I didn't think of that when I said it mus tbe thread safe -- but in cases where you'd want a guaranteed _sequential_ counter, you would risk holes in your sequence as the interpreter thread could be pre-empted at any time during the execution of the statement. Now, I don't know if the Python global interpreter lock permit statements to be interrupted. Does it? In that case, chalk that up as just another moot point :-) -- Alexander Staubo http://www.mop.no/~alex/ "What the hell, he thought, you're only young once, and threw himself out of the window. That would at least keep the element of surprise on his side." --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_

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product management question
by Alex Rice 18 Jul '99

18 Jul '99

Why does the "Distribution" tab dissapear when a Product is "installed"? (I think) This makes it difficult to manage products-- if I am working on a project and I want to move it to another Zope installation and then continue to work on it and distribute it again, how can I do this when the Distribution tab is not available? Can I just tar.gz what's in my Products directory? Or do I have to use the distibution tab? -- Alex Rice | alrice(a)swcp.com | http://www.swcp.com/~alrice Current Location: N. Rio Grande Bioregion, Southwestern USA

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Re: [Zope] help urgently needed...
by michel＠digicool.com 18 Jul '99

18 Jul '99

Jens Vagelpohl <tommymi(a)concentric.net> writes: > hi zope experts... > > i sent a message to the mailing list a few days ago about netscape and a >  that refuse to work with each other. unfortunately, i haven't > gotten any reply yet :( i need to get this solved before the project > demonstration (i *know* my professor has netscape on his machine)... > > here's the situation: i have a "help" menu which is based on the tree > tutorial included in the ZBook. i basically reused the same code and just > renamed object references where needed. i have just one folder in the tree > (called "How to...") and the folder contains DTML docs with IDs like "Use > this help system" or "Search for a customer record" etc. > > everything displays and works fine with IE 4, IE 5, the StarOffice browser > (SO 5.1), but *not* with netscape. i tested it on NS 4.51 on Linux as well > as the Win32 version of Mozilla Milestone 8. expanding the book content in > the navigation bar works fine so that i see all topics. but once i click on > one of the topics ZServer restarts and netscape gives me something like > "document contains no data". > ouch. > am i doing something wrong? or is it some bug in netscape? please help... > > Here is the code to link to the help topic pages (again, it's the very same > used in that tutorial): > > <IMG SRC="/HelpSys/hs_dnode" ALIGN="TOP" BORDER="0" > width=16 height=16> > <A HREF="/?tree-s=&tree-e=&tree-c="></a> > Can you send the whole tree tag snippet? > > Here is the error trace that dumps onto my linux terminal window when > ZServer goes down, it's always the very same message: > > uncaptured python exception, closing channel > <zhttp_channel connected 192.168.168.3:4137 at 844fe00 channel#: 1 > requests:0> (exceptions.TypeError:unpack non-sequence > [/usr/src/Zope-2.0.0a3-src/ZServer/medusa/asyncore.py|poll|59] > [/usr/src/Zope-2.0.0a3-src/ZServer/medusa/asyncore.py|handle_read_event|285] > [/usr/src/Zope-2.0.0a3-src/ZServer/medusa/asynchat.py|handle_read|126] > [/usr/src/Zope-2.0.0a3-src/ZServer/medusa/http_server.py|found_terminator|44 > 4]) > Looks like it happens way down in ZServer. yikes. I would not put it past netscape to be doing some bonehead HTTP violation. -Michel

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dtml question: xrange?
by Kevin Lewandowski 18 Jul '99

18 Jul '99

Is there a way to generate a range in dtml? (like the python xrange() function) Specifically, I want to iterate from 0 to a variable (comes from a form) using the #in tag. I couldn't find anything about this in the docs. any ideas? thanks, Kevin

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Re: [Zope] Lets try this again - auto-creation
by michel＠digicool.com 18 Jul '99

18 Jul '99

Alexander Staubo <alex(a)mop.no> writes: > You can store a "last ID" counter as an int property on the top-level > folder, and increment that for every object you create. > > Under Zope2 the counter must be thread-safe, which means you've got to > borrow of Zope's global -- I think -- thread locks. > If the object is persistent, like a property, it is automaticly thread safe. The object database does not allow two threads to update an object simultaneously. -Michel

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