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Re: [Zope] Lost Objects after System Crash (Zope 2.1.5 on Win32)
by Joachim Werner 21 Mar '00

21 Mar '00

> I upgraded to Zope 2.1.5 (Win 32) Saturday and carried out changes in the > database (eg. created new ZClasses, added ZClass instances, etc.) > > I had a nasty system crash (Win 95) around midnight Saturday. When I > reopened Zope I realised the database was back to its 16:22 status: > - All new objects had vanished. > - The last transaction logged in the Undo list is dated about 16:22. > - The very Data.fs in the filesystem is stamped 16:22 if you can believe it. > > I checked the Z2.log and it shows these missing changes. So I didn't dreamt > doing them. > > I suppose these changes are lost? I had the same experience a few days ago with a 2.1.4 installation running under Win98. I have a couple of different Zope instances running on Linux and Windows, but that was the first data loss. It seemed to me as if the session had been running in "demo" mode so that changes would not be really persistent. As in Alexandre's case, I first thought I was dreaming because there was no hint of my data except for the log files. I suggest some further investigation into that. If Zope really lost things that easily, I'd consider not using ZODB for production sites ... BTW: In my case it also was a Windows system crash that caused the data loss. Joachim Werner. -------------------------------------------------------

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discussion/forum product/zclass
by - 21 Mar '00

21 Mar '00

hi all, i've been looking at confera and zdiscussion as a possible forum solution. however, i'm also looking at other perl/php products. my Q: -anybody on the list have deployed confera/zdiscussion on a large site? -what will a lot of traffic do to Data.fs? will i have to pack often? -i'm looking at modifying zdiscussion to store to an RDBMS. anybody done that already? if so, mind sharing how you did it? -i'm not a python programmer. and i would like to implement filtering for certain words/malicious html tags. i see an external method here. any other solution? dtml maybe? :) i thank all for your help, pointers, docs. -- ------------------------------------------------------ http://www.kedai.com.my/kk Am I Evil?

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RE: problems with jcNTUserFolder
by Ava 21 Mar '00

21 Mar '00

> Hello, > Thanks a lot for answering so quickly. I changed the getUsers > method and no > more Attribte Error occured. When I now try to connect to the folder > containing the NT User Folder, The Username (listed in the NT > User Folder) > and password is not accepted. have you given roles to the user??? to protect the folder, I suppose you have created a role 'ROLE', and said that anyone but those with the role 'ROLE' are able to view the folder. however, if the users in the NT User Folder are not given roles, there are two case: when you create a NT user folder, you have to choose whether default behavior when a user is not given roles is to acquire user settings from higher user folders or not. - if default behavior is to acquire settings, due to the very nature of user folders, NT User Folders says the user *does not* exists if no roles are defined, to allow higher user folders to handle the user. this is the default for a nt user folder created in a sub folder - if default behavior is not to acquire settings, NT User Folder always says 'yes' when the user is asked, but if no roles are defined, the user is assumed to have to anonymous role. this is the default for a nt user folder created at the top level if roles are created for a user, it always exists, what ever the default behavior is. back to your problem: if you choose not to acquire user roles, all users for which you didn't give roles are *anonymous*, so they have no rights on your protected folder. > I'm running Zope as a service. good > Is there any additional work to do when installing the NT User Folder? > Is it necessary to install the NT User Folder at the toplevel > Folder inside Zope? nope but be careful about the above point I really have to write a doc for NT User Folder!! anyone wants to send me some beer for the work to be done ? ;-) regards, jephte clain

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Using ZopeEDIT with Notepad?
by Paul Browning 21 Mar '00

21 Mar '00

OK, so it's not my favourite editor but I thought I'd try Notepad with ZopeEDIT for the hell of it. Can anyone tell me what I should set EDITOR_CMD to? 'C:\WINNT\system32\notepad.exe' and 'C:\WINNT\system32\notepad.exe %s' don't do the job. (What's the %s for anyway?) TIA. Paul -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bris.ac.uk URL: http://www.bris.ac.uk/

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ZODB Couldn't load state - help please
by Dr. Peer Griebel 21 Mar '00

21 Mar '00

Hello Zopers, I just joined these mailing lists. I have a boring problem I can't understand. I wrote this little program: import Persistence import ZODB import ZODB.Transaction import ZODB.FileStorage class dbclass(Persistence.Persistent): def __init__(self): self.thedata = 'testdata' def getdata( request=None ): name = 'somename' db = ZODB.DB(ZODB.FileStorage.FileStorage('myfile.fs')) connection = db.open() root = connection.root() if not root.has_key( name ): print "initialising" root[name] = dbclass() get_transaction().commit() r = root[name].thedata connection.close() return r This program works very well if it is started directly using the python interpreter. But if I call it from Zope using 'Try it' in the management console it works only one time. The second call of the function results in: Zope Error Zope has encountered an error while publishing this resource. Error Type: AttributeError Error Value: dbclass Traceback (innermost last): File D:\PROGRA~1\uZope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File D:\PROGRA~1\uZope\lib\python\ZPublisher\Publish.py, line 179, in publish File D:\PROGRA~1\uZope\lib\python\Zope\__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File D:\PROGRA~1\uZope\lib\python\ZPublisher\Publish.py, line 165, in publish File D:\PROGRA~1\uZope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: korb) File D:\PROGRA~1\uZope\lib\python\ZPublisher\Publish.py, line 102, in call_object (Object: korb) File D:\PROGRA~1\uZope\lib\python\Products\ExternalMethod\ExternalMethod.py, line 248, in __call__ (Object: korb) (Info: ((None,), {}, (None,))) File D:\Programme\uZope\Extensions\korb.py, line 15, in getdata File D:\PROGRA~1\uZope\lib\python\ZODB\Connection.py, line 396, in setstate File D:\PROGRA~1\uZope\lib\python\ZODB\Connection.py, line 193, in _persistent_load (Info: ('\000\000\000\000\000\000\000\001', ('App.PersistentExtra', 'dbclass'))) File D:\PROGRA~1\uZope\lib\python\ZODB\Connection.py, line 153, in __getitem__ (Info: In the debug output I get: 2000-03-21T08:09:14 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\000\000\000' What am I doing wrong? Thank you for your help! -- connection reset by Peer _______________________________________________________________________ Dr. Peer Griebel Tel. +49 7581 4831 23 Geschäftsführer Fax. +49 7581 4831 11 Knoll Informationssysteme GmbH http://www.knoll-is.de Dreiköniggasse 17 mailto:peer@knoll-is.de 88348 Saulgau privat: mailto:peer.griebel@gmx.de

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problem turning off permission acqusition
by sathya 21 Mar '00

21 Mar '00

I have a file object (pdf type) which should be viewed only by a certain role. So I want to turn of the permission acquisition for anonymous users as they have view permissions in the top level folder. However when i I try to change it I get an Error error type : attribute error value: tag Can anybody shed some light on this ? Thanks sathya -- ########################## necessity is the mother of invention ##########################

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Falsh Animation and Zope
by abel gance 21 Mar '00

21 Mar '00

Hello, How to set up a Zope web site which utilises Flash animation ? What is the best way to proceed for integrate Fash animation and DTML document, when the flash developper don't know Zope and zope developer don't know Flash ? there is someone who build this kind of site ? ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup

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get OUT args from ZOracleDA
by Chien-pin Wang 21 Mar '00

21 Mar '00

Hi, I have Zope 2.1.5 and Oracle 8.0.5 running on the same Linux box. ZOracleDA was installed successfully and bridged Zope and Oracle. I can call my stored procedure by creating Z SQL Method like: begin procName(arg1, arg2,...); end; But I cannot get return arguments (OUT args) no matter how the Z SQL Method is set. I have tried the interfaces mentioned in DCOracle documents, but failed. The only work-around I've found is creating extenal methods and import DCOracle via python. Is there any way to get the OUT arguments from Z SQL Method? Thanks a lot! Chien-pin

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ZClasses and clone/delete methods
by John Morton 21 Mar '00

21 Mar '00

I need to know whether I can set up clone and delete methods in a Zclass that automatically get invoked any time someone deletes or copies an instance of that class from the management interface (via cut and paste or whatever). What I'm doing is creating a simple link class that just stores the key to a RDBMS row that contains all the details of the link (description, URL, clickthrus etc). The trouble is that when a link is deleted from Zope, it needs to touch the db record or that record will become orphaned - ideally the db record needs to keep a reference count of the number of link objects out their, and they need to increment or decrement that count as they get copied and deleted. So can this be done with a ZClass (if not, why not :-)) and if it can't, how can I do this with a Python Product (given that I've never written one!). TIA, John.

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LocalFS v0.1.7 released
by Jonothan Farr 21 Mar '00

21 Mar '00

I've released LocalFS v0.1.7. It hasn't been tested extensively so I've left the bits for v0.1.6 up on the site. I'm just too excited to wait. :) The url is: http://www.zope.org/Members/jfarr/Products/LocalFS Enhancements in v0.1.7: - Added the ability to customize mappings between file extension, content-type, and Zope object class. - Added the ability to customize content-type to icon mappings. - LocalFS objects now work with the <dtml-tree> tag, so they can be traversed using the navigation menu. (plus a few bug fixes) If you try it out please let me know what you think or if you find any problems. Thanks, -jfarr

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