February 2002 - Zope

add file to zope filesystem unless it exists
by John Hunter 13 Feb '02

13 Feb '02

I want to have a user upload a file to the zope filesystem, but if the file already exists I want to ignore the request I have a Python Script ## Script (Python) "add_to_filesystem_py" ##bind container=container ##bind context=context ##bind namespace= ##bind script=script ##bind subpath=traverse_subpath ##parameters=folder_name,file_name ##title= ## REQUEST = container.REQUEST RESPONSE = REQUEST.RESPONSE idFolder = getattr(context.Patients, REQUEST.get('id')) folder = getattr(idFolder, folder_name) if not hasattr(folder, file_name): folder.manage_addFile(id='', file=file_name) return getattr(file_name, 'filename') Without the 'if not hasattr(folder, file_name):' the script works fine and adds the file to the filesystem and returns an error if the file already exists there. Apparently I am not using the hasattr part correctly. What is the correct way in a python script to test for the existence of a file in a folder object? Thanks, John Hunter

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question about forms and zsql
by Robert Hood, Ph.D. 13 Feb '02

13 Feb '02

So far I'm enjoying zope. I've rewritten several sites using it, and think it will make my work more efficient. One of my older sites stores material in database. I'm probably going to put everything in zope eventually, but for now I just want to improve the search on a (small MS Access) database. So I now use zope to communicate with the database, and have created a form to search it, though at the moment my form is limited to exact matches--e.g., if you search on "Environmental Ethics" you'll get a result, but not if you search "Ethics." In sql you can use LIKE %name% to let people search more flexibly. So how do I pass the %name% from the form to the method? Do I make the change to the form, or to the zsql method? if the form has a field like: <input type="text" name="CourseName" size=20> and the zsql method is: SELECT * FROM Courses WHERE (CourseName LIKE <dtml-sqlvar CourseName type=string> OR SemesterTaught LIKE <dtml-sqlvar SemesterTaught type=string> OR CourseType LIKE <dtml-sqlvar CourseType type=string> ) btw, the site is: http://appliedphilosophy.mtsu.edu/syllabusproject/index.html thanks, Robert

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ExUserFolder
by Mayer, Steven 13 Feb '02

13 Feb '02

Hi, I use now the exUserFolder but I need 30 minutes until the data is transfer and the user registration is done. Is this normal? I have add 10 Textfields in the form. Regards Steven

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Announce: StarRave SQL
by Ed Colmar 13 Feb '02

13 Feb '02

A few people have been asking me for a new StarRave that works with the new zope verions. So Instead of rehacking the old worn out code, I started over using SQL. I uploaded a very basic StarRaveSQL for people to play with if they are interested. http://www.zope.org/Members/element/StarRave/index_html If anyone wants to see a site in operation hit: www.trust-components.com I hope to have a more feature laden version here shortly, but this will tide people over. -ed-

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Tokenbased Filelist
by Frank Simon 13 Feb '02

13 Feb '02

Hi folks, How do I display a sorted list of files based on tokens? I extended the properties of some files like this: Name: Category, Value: A B C, Type: tokens Name: Comment, Value: some text, Type: text How do I display just the files that have token A and their comment? Also, is there a way to have this list displayed in any given subdirectory without actually moving the files there? Appreciate you help. Best regards, Frank ____________________________________________________________________ Get free e-mail and a permanent address at http://www.amexmail.com/?A=1

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TAL - authentication
by Tom Nixon 13 Feb '02

13 Feb '02

I want to have a <span> with a tal:condition clause that means it's only displayed if there is an authenticated user logged in, or alternatively if the user has particular privileges. In DTML it would be something like the following but I'm not sure about how to do it in TAL. <dtml-if expr="_.SecurityCheckPermission('Add Documents, Images, and Files', this())"> Hello authorised user </dtml-if> I assume something like this: <span tal:condition="python:someSecurityFunction()" tal:replace="string:Hello authorised user"></span> T.

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permissions documentation
by Eckhoff, Damon 13 Feb '02

13 Feb '02

Is there a document out there that lists which API functions map to which permissions settings? I'm going blind trying to find one.... Thanks, Damon.

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Starting a dtml-method in a python script
by Sebastian Sippl 13 Feb '02

13 Feb '02

Hi, I ve got a problem: i want to start a dtml-method from a python script.normally it should work like this: container.dtmlmethod() but !!! i always get a "global name REQUEST is not defined error". in the dtml-method are some REQUEST.set calls and it always crashes when my program gets to one of this... if i start the dtml-method normally there are no problems ... so , how do i avoid this error ? Sebastian

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Re: [Zope] slow authentication popup in 2.5.0?
by H.de.Wit＠SFK.NL 13 Feb '02

13 Feb '02

>Hmm... can you put a entry in the HOSTS file for 142489 that points to >127.0.0.1 and try to restart Zope to see if the problem goes away? No, this does not work >Authentication was rewritten a dog's age ago, but I'm not sure if it >made its debut in 2.5. In either case, 20 seconds to wait for an auth >dialog is an exceptional situation that usually means that there's a DNS >issue. I am convinced Hans de Wit Stichting Farmaceutische Kengetallen Postbus 30460 2500 GL DEN HAAG Tel. 070-3737448 Fax 070-3737445

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Re: [Zope] Starting a dtml-method in a python script
by H.de.Wit＠SFK.NL 13 Feb '02

13 Feb '02

>So in you python script you should >call container.amethod(container, container.REQUEST). Just to be complete (in a python script there is standard the line request=container.REQUEST) request = container.REQUEST context.justadtmlmethod(context,request,parm1=value1, parm2=value2) Hans de Wit Stichting Farmaceutische Kengetallen Postbus 30460 2500 GL DEN HAAG Tel. 070-3737448 Fax 070-3737445

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