December 2003 - Zope

CMFPhoto: Invalid Date Components
by Bin Zhang 01 Dec '03

01 Dec '03

I am running Plone on a Redhat 9 box. I am able to see the thumbnails from a cmfphotoalbum folder, but when I click on any one of the photos, I got this message: Error Type: Invalid Date Components Error Value: 0000:00:00 00:00:00 What should I do at this point? I would appreciate any help you might be able to provide. bz

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Zope Port Question - Running on Port 80
by Marc Stein 01 Dec '03

01 Dec '03

I'm trying to move my Zope instance from port 9673 to port 80 and have some fairly basic questions regarding the port configuration. In my z2.py file the parameter HTTP_PORT is set to 8080. This is the only z2.py file on the machine. In /etc/zopectl/zopectlrc 9673 referenced as the HTTP port. If I change 9673 to 80 and restart Zope I don't get an error, but I can't resolve. If I try to access port 80 while Zope is running on 9673 I don't get a page resolved. Apache is running (on port 80 according to httpd.conf). If I change Apache to run on another port (say 8080) then Zope stops working. It would seem as Zope is using Apache as a proxy, but why not on port 80. Is there a simple way to reconfigure this instance to use port 80 either via Apache or the Zope HTTP server? At present I want to access the site via IP instead of domain name. Many thanks in advance, Marc Stein

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Re: FYI: Epoz 0.7 - the XHTML-release
by Richard Golden 01 Dec '03

01 Dec '03

Maik Jablonski wrote: > Hi to all, > > many people asked for XHTML-support in good old Epoz... and so I decided > to do it. Woohoo! It works. (almost: ie, 99%*) As far as I can tell with the little testing I've done so far Epoz-0.7 is XHTML compliant. I've built a complex web page using it, and the XHTML validator says: "This Page Is Valid XHTML 1.0 Transitional!". Thanks Maik! * one small issue remains: relative links aren't after switching from HTML mode back to visual mode (I was testing with IE 6.0). If I do not switch to HTML mode, any relative links entered remain relative. However, it appears that when switching from HTML to WYSIWYG editing the relative links are rewritten as absolute. Other than this issue with switching between HTML and WYSIWYG, everything looks great. Why switch to 1.0? *grin* Thanks again for a great Product!! Seeya, Richard

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troubles using Zope/SSL without Apache
by Jim Abramson 01 Dec '03

01 Dec '03

We serve zope from a linux machine behind a load balancer that performs hardware-based ssl encryption. Formerly, requests from the LB were forwarded to the zope machine using apache as a proxy. Troubles began when we removed apache from the picture and started running requests directly from the LB to the server port Zope listens on...since doing that, certain management interfaces (not all!) do not function correctly and I have figured out why: in the html frameset for /manage, the three subframe htmldocs are being called via http:// not https://. (However, the relatively-linked inline assets such as images and stylesheets are correctly addressed using https://.) Any idea why this is happening, and what I can do to force Zope to properly set 'https' in the absolute links it generates? Secondly, and I'm sure it's related, login functionality (the web-based one, not the http auth) in a Plone install on this Zope instance has stopped working correctly. Any tips on that are greatly appreciated as well. Thanks for any advice, Jim

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Newbie questions
by fowlertrainer＠anonym.hu 01 Dec '03

01 Dec '03

Hello Zope-Masters ! Please help me with some examples/answers ! 1.) I cannot show results of Z-SQL method. I see the examples on web, on tutorial, but... ZSQL method name: testgroup. select id,name from inst_group Under KInterBase Connection, the test show the results. But if I wrinte into index.html: ... <dtml-in testgroup> x <li><dtml-var id>: <dtml-var name></li> </dtml-in> ... then it is don't show the results. Why ? Every example do this way. I do it with another tables, and another databases (ex. Gadfly) to avoid possible IB errors/bugs. But no result. Why ? What I do wrong ? 2.) I want to process the result of zsql query under PythonScript (select * from xxx). How to I call this method from PythonScript ? How to I get the result rows ? Please show with an example ! 3.) There is an (K)InterBase Connection. I want to access the IB specials. These are: - start transaction/Commit/Rollback, more if possible - call stored procs - set the transactions isolation level How to I do it under Zope ? I have an examples ? 4.) If there are two requests in zope, and the scripts are have use (K)InterBase Connection, that the connection object is duplicated ? The ZSQL method objects are duplicated also ? So: the requests' processes are separated ? 5.) I wan to log in users under zope just like php. This is the logical scheme (pseudo): browser session handling on handler: if mainsession is empty: result= form username/pwd /form submit button elif: get submitted form check username/pwd if wrong: result=errorform else: mainsession set to(userid,username,otherdatas) result=mainform for logined user So: the login form is one the main form, but some menus are disabled. When user have been logined, the menus are enabled. The checking is based on ZSQL method (select check). The questions are: - how to I do it under Zope, to Zope use the Session ID like PHP, and how to I write the session datas to session variable(s); and how to load/get values from it ? - how to I force Zope to the logined user is set to an existing zope user (only one for all logined user). I don't want to duplicate the user management into zope, I want to use my usernames in my IB database. 6.) Under Zope I how to create/set an variable in PyScript what useable in DTML ? So how to set more DTML variables under PyScript ? (example: dtml_username='xxx'; dtml_func="8"; etc.) or only I do it only with one with this: <dtml-var expr="myscript"> myscript.return(vmi) ? 7.) If I write this: <dtml-var expr="myzsqlmethod"> I get all of results of the method ? 8.) What is the ZSQL method caching (1000 row)? Is this an data packet size ? How to I get more records ? Can you show an example (not the Book's Batch, please show another) ? 9.) How to I import XML file ? I export my zope folder in home. I want to use another site. But I cannot do import. I try with these variations: c:\test.xml file://localhost/C:/test.xml Thanx for any help, examples, links. But please: don't say to I read the main book, every day I do, but my special questions I cannot found in it. KK -- Best regards, fowlertrainer mailto:fowlertrainer@anonym.hu

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python test_largefile.py - File size limit exceeded -
by Chuck Aamdi 01 Dec '03

01 Dec '03

I tried running this python script on my development server and it run ok. but when I shutdown and run the test_largefile.py on my deployed Zope it read as below. [zope@aquarius test]$ python test_largefile.py create large file via seek (may be sparse file) ... File size limit exceeded [zope@aquarius test]$ Regards Chuck -- Chuck Amadi, ICT Systems Programmer, Brecon Beacons National Park Authority Direct Line: 01874 620440 FAX: 01874 622574 EMAIL: chuck.amadi(a)breconbeacons.org _______________________________________ \ \ \ Chuck Amadi,ICT Systems Programmer \ __________ | \ \ / \___-=O`/|O`/___| \ . \_______\ / | / ) / / `/-==__ _/__|/__=--| / / * \ | | / / (o) /______________________________________/ Nid yw'r farn a fynegir gan anfonwr y neges hon o anghenraid yn adlewyrchu barn Awdurdod Parc Cenedlaethol Bannau Brycheiniog. Neges yw hon a fwriadwyd ar gyfer y derbynnydd/derbynyddion yn unig ac fe'i hanfonir yn gyfrinachol; os ydych yn ei dderbyn mewn camgymeriad, a fyddech gystal %/1??iso8859-15?â rhoi gwybod i ni (yn it(a)breconbeacons.org) ac yna dil%/1??iso8859-15?ëwch bob copi. The views expressed by the sender of this message don't necessarily represent those of Brecon Beacons National Park Authority. This message is intended for the addressee(s) only and is sent in confidence; if you receive it in error, please can you let us know (at it(a)breconbeacons.org) and then destroy all copies. --------------------------------------------------------------------------- Brecon Beacons National Park Authority takes every care to keep its network free from viruses. All emails are scanned and verified virus-free by Sophos Anti-Virus software. *** IT IS THE RECIPIENTS RESPONSIBILITY TO CHECK ALL MESSAGES FOR VIRUSES ***

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Posible memory leak?
by Gabriel Genellina 01 Dec '03

01 Dec '03

At 27/11/2003 21:17, you wrote: >I added a step in my manage_addTopic() script like >this to make a local reference to the "View" attrib I'm >trying to acquire: > >ob = Topic(...) >ob.ViewAlias = self.View >self._setObject(id, ob) >ob = self._getOb(id) > >View is a PersistentMapping, so I presume it will act like >a normal mutable Python object (so when I make changes >to its contents, they'll show up in the alias). I'll have >to test this, anyway, to make sure, of course. > >In the __setstate__ method, Topic computes using the >ViewAlias which is a local attribute: > >for view in self.ViewAlias.keys(): > #... do some stuff with this view info > pass Is this correct? Or there is a memory leak here? In a previous post http://mail.zope.org/pipermail/zope/2002-January/107054.html Max M maxm(a)mxm.dk said: >If your item is subclassing persistent you should expect them to stay in >the zodb. And then you should not add them to a list in your own >product, but create a subclass of ObjectManager and use the _setObject() >method to add the item instances. > >Else your item class should not subclass persistent. > >If you want to do it your way by adding item instances to a list in your >product you should also be aware that every time your product is >changed, or even one of the item instances, the whole object is written >to the Data.fs again. Leading to a bloated Data.fs ... if you don't pack >it regularly. > >But doing something like that with that many objects is the wrong way to >use the zodb. From this and other sources I've been told *not* to store a Persistent object as an attribute of another object, as this would cause a memory leak. But maybe a PersistentMapping is specially crafted? I dont see anything special in its source. Perhaps the enlightened people could explain the rules to avoid memory leaks... Gabriel Genellina Softlab SRL

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base href
by Ian Bicking 01 Dec '03

01 Dec '03

I'm having a problem with LocalFS, HTML files, and the <base href> that gets added to pages. But I feel, at its source, Zope is just being nuts. HTTPResponse.insertBase inserts <base href> to pages; in turn, this base is set in HTTPResponse.setBase, where it ensures that the base always ends in "/". This causes paths to grow, as leaf pages (non-directory pages) get treated like directories. This is annoying in normal Zope objects, but LocalFS objects don't seem to acquire parents, so the extra elements in the URL that point to a LocalFS are just broken. While these growing URLs seem to be a persistent problem for many people in Zope, I assume there is a way that the paths *should* work. What do people do to get rid of these? Is there a way to keep HTTPResponse from adding a <base href> at all? (I could add "" to pages to trick insertBase into thinking the tag has already been added, but that's obviously a bad hack) -- Ian Bicking | ianb(a)colorstudy.com | http://blog.ianbicking.org

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How to replace catalogaware base class with catalogpathaware in a Zclass?
by Yurj 01 Dec '03

01 Dec '03

How to replace catalogaware base class with catalogpathaware in a Zclass? Calogaware has path problem with virtual host monster... ________________________________________________ Message sent using ALFANET Caorle WEBMAIL 1.0

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automated response
by Tom Herman 01 Dec '03

01 Dec '03

I will be on the road and unable to access email until Thursday (12/4). I will be checking voicemail, so please call me if your message is urgent (603-478-3166 x20). Otherwise, Renee should be able to help you (Renee(a)interlocken.org) Thanks, -tj

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