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sessions and dtml problem
by Ben Avery 12 Jun '02

12 Jun '02

Hi, I'm a bit of a newbie, but using Zope for a big project, and getting there, but struggling with some of the details, in this case the session object and the dtml namespace. I have a form which gets submitted to a python script which first pushes the form object into the session, does some form validation, and if any fields don't match the validation criteria, then the form is revisited until correct. I want to reuse the same DTML method to display and populate the form, so the first time, I use a <dtml-in [ZSQL method]> [form] </dtml-in> construct to give access to the fields. Now when I revisit the form, I want to use the form I previously put into the session to populate the fields. I've tried using things like <dtml-with expr="SESSION.get('co_reg_form')"> [form] </dtml-with> and what must be a million permutations with all the dtml constructs! all to no avail. I really want to put some construct around the form, and just access <dtml-var first_name> etc inside, the same as with the <dmtl-in [zsql method]>. could someone be kind enough highlight the point(s) at which I'm being stupid? =) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ben Avery YouthNet UK

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Image Caching
by Smith, Neil 12 Jun '02

12 Jun '02

I seem to remember having read something in the list before about problems with caching of images, but I can't find it again. Is there anything that would cause an image used multiple times on the page not to be read from the cache? I have a form that uses JavaScript to display itself, such that it can do a sort of tabbed interface and add new lines to the form without going back to the server. This contains a number of very small images that are frequently repeated to build up the borders of the tabs etc. This works well when used on the LAN, but I've now found that when used across the internet, when the form redisplays itself, it takes forever to build up the graphics, and you can see each individual image being slowly loaded. I'd thought it would have got the images from the cache. It's Zope 2.4.3 running on NT4, just ZServer, no apache or anything, and the browser is IE 5. Any ideas? -- Neil ********************************************************************** The information contained in this e-mail is confidential and intended only for the use of the addressee. If the reader of this message is not the addressee, you are hereby notified that you have received this e-mail in error and you must not copy, disseminate, distribute, use or take any action as a result of the information contained in it. If you have received this e-mail in error, please notify postmaster(a)npower.com (UK 01384 275454) and delete it immediately from your system. Neither Npower nor any of the other companies in the Innogy group from whom this e-mail originates accept any responsibility for losses or damage as a result of any viruses and it is your responsibility to check attachments (if any) for viruses. Npower Limited Registered office: Windmill Hill Business Park, Whitehill Way, Swindon SN5 6PB. Registered in England and Wales: number 3653277 This e-mail may be sent on behalf of a member of the Innogy plc group of companies. **********************************************************************

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Backup & restore zope
by Jim Kutter 12 Jun '02

12 Jun '02

Hi folks - how does one go about backing up and restoring a production Zope server? -jim

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investigating an object
by Kevin Lewandowski 12 Jun '02

12 Jun '02

Is there a way to get a list of all methods and properties of an object? In normal python you can do "dir (object)" and see its methods and properties. But that doesn't work in zope. thanks -Kevin

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problem with Zope ODBC Database Adapter
by Kevin Lewandowski 12 Jun '02

12 Jun '02

Hi, I'm not able to connect to a certain database with the Zope ODBC database adapter. I can connect to other servers with no problems but when I try to connect to this other server I get the error "Invalid connection string". I'm using a connection string like: "DSN username password". I know the name and password are correct because I can connect to it with other client utilities. Has anyone had a problem like this? or see any obvious mistakes I'm making? thanks -Kevin

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Acquisition
by Marco Catunda 12 Jun '02

12 Jun '02

Hello, I wrote the follow python script: from Products.PythonScripts.standard import html_quote request = container.REQUEST RESPONSE = request.RESPONSE return request.PARENTS[0]['menu_array'] And I have had the follow error: Error Type: TALESError Error Value: exceptions.KeyError on menu_array in "standard:'here/getMenuArray | default'", at line 22, column 1 It's right. The request.PARENTS[0] has no menu_array object, but, look the help of __getitem__(id) of objectmanager "Returns a child object given a child id. If there is no child with the given id, returns None. This method makes it easy to refer to children that have id with file extensions. For example:" I think the help is wrong. Is it true? What the best way to solution it? Do I have to use try: catch:? Is there a function for test id, like has_key for dictionary? Regards -- Marco Catunda

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Problems with uplevel icon
by Nico de Boer 12 Jun '02

12 Jun '02

I have got some problems with my uplevel icon. The product I use has an icon, but besides that I want to use a UpLevel icon. This icon has to be in the www folder of my product. I've tried this with the following code: def __init__(self): """I use only the necessary code""" self.id = id self.title = title self.uplevelicon = 'www/UpFolder_icon.gif' And then I want to call it from my Zope Page Template: <a class="newslink" href="" tal:attributes="href container/absolute_url"><img src="" width="16" height="16" border="0" alt="up" tal:attributes="src container/uplevelicon; alt container/meta_type" /></a> But Zope doesn't see it as an Image object. Or is there a method like this: <img src="/misc_/OFSP/Folder_icon.gif" tal:attributes="src item/icon"> <span tal:replace="item/meta_type">Meta-Type</span> Greetz Nico

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Python calling files from ancestor directories?
by Alec Munro 12 Jun '02

12 Jun '02

Hi there, Any idea how I can use Python to call a file two directories up? So if my python script is at: /root/blah/cgi/someScript And I want it to return the file: /root/nah/someFile I haven't figured out how to do this yet, any ideas? Alec Munro

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Renaming ZClass Instance problem.
by Mark Godfrey 12 Jun '02

12 Jun '02

Hi, Zope List. I've searched the archives for an answer to this niggly little problem I've found, but seen nothing which answers it, so I'd thought I'd ask here. Please excuse if I'm doing something wrong - I'm a relatively new user. I'm currently running the binary distribution of Zope downloaded from www.zope.org for Solaris under Solaris 2.7. I've created a new Product, and placed a single ZClass in it. The ZClass only inherits from ZObject. I can create an instance of this class (called adsl), but when I try a rename operation (renaming it to testProduct), The instance is in /talkbacktest in the zope tree, btw. I get the following error and traceback: The object adsl does not support this operation Traceback (innermost last): File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.p y, line 150, in publish_module File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.p y, line 114, in publish File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/Zope/__init__.py, line 159, in zpublisher_exception_hook (Object: talkbacktest) File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.p y, line 98, in publish File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/ZPublisher/mapply.py , line 88, in mapply (Object: manage_renameObjects) File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/ZPublisher/Publish.p y, line 39, in call_object (Object: manage_renameObjects) File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/OFS/CopySupport.py, line 215, in manage_renameObjects (Object: talkbacktest) File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/OFS/CopySupport.py, line 230, in manage_renameObject (Object: talkbacktest) File /usr/local/Zope/Zope-2.5.1-solaris-2.6-sparc/lib/python/OFS/CopySupport.py, line 373, in _verifyObjectPaste (Object: talkbacktest) Copy Error: (see above) Does anyone have any ideas what is causing this? I've followed the ZClass tutorial in the Zope Book, and that does exactly the same, so I don't think it's anything I'm doing wrong. Any help would be gratefully received! Regards, Mark Godfrey.

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Sessions: without cookies? url rewrite?
by Heimo Laukkanen 12 Jun '02

12 Jun '02

Hi, what is in the future of using Sessions with Zope? I am mostly talking about the events of using session without cookies - and how do we pass the session id around? At the moment it seems that without cookies the id has to be included in the form or links manually - since there is no mechanism to do the same as in php's url rewrite. Has anyone yet solved this or is there any ways to go around this? -huima

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