February 2000 - Zope

Re: [Zope] Creating a "list of strings" from DTML-Method?
by Tres Seaver 23 Feb '00

23 Feb '00

Soren Roug <soren(a)roug.org> > Organization: Net.conf > To: zope(a)zope.org > Subject: [Zope] Creating a "list of strings" from DTML-Method? > > I'm working on a product where I want to create a property that is a > selection and allows you to select between a list of folders created in > the parent folder. > > When you add a property in the property sheet the text directly > above says: > | > |For "selection" and "multiple selection" properties enter the name of > |a selection variable |in the "Value" field. The selection variable is > |a property or method that returns a list of strings from which the > |selection(s) can be chosen. > | > After fiddling around a bit I realized that the only methods that > qualify are Z SQL methods. That's not what I'm looking for. Does > anybody know how to do this with a DTML method or has anyone > subclassed the DTML method to a class that returns a list of strings > instead of rendering the text? Jim Washington <jwashin(a)vt.edu> > > Hi, Soren > > You might want put the following in a new dtml method and see if it does > what you need: > > <dtml-call "REQUEST.set('folderlist', objectIds('Folder'))"> > <dtml-return folderlist> > > Or you might make the list like so: > > <dtml-call "REQUEST.set('folderlist', ['folder1', 'folder2', > 'folder3'])"> > <dtml-return folderlist> > > IIRC, dtml-return is relatively new to zope, so if it does not work, you > may need to upgrade. The temporary isn't needed in this case (might be if you build the list up programmatically):: <dtml-return expr="objectIds( 'Foler' ) )"> or:: <dtml-return expr="[ 'folder1', 'folder2', 'folder3' ]"> work fine. Tres. -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Re: [Zope] stupid, but neccessary q'n
by Tres Seaver 23 Feb '00

23 Feb '00

Tom Deprez <tom.deprez(a)uz.kuleuven.ac.be> asked: > > When Adding properties to a ZClass, I came across the type Token. > > What does this mean? Geir B Hansen <geirh(a)funcom.com> replied: > > I wondered about this for a while too, but i think found out in > the end . > > a 'tokens'-field is like a 'lines'-field > except the values are comma-separated instead of > newline-separated.. > > like this : > > item1,item2,item3 etc.. Almost -- it is space-delimited, not comma-delimited: "item1 item2 item3" The clincher is the implementation, in $ZOPE_HOME/lib/python/ZPublisher/Converters.py:: def field2tokens(v): if hasattr(v,'read'): v=v.read() else: v=str(v) return split(v) # this is Python's string.split() -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Re: [Zope] For loops in dtml
by J C Lawrence 23 Feb '00

23 Feb '00

On Wed, 23 Feb 2000 13:50:37 -0500 (EST) Jeff K Hoffman <jeff.hoffman(a)goingv.com> wrote: > On Wed, 23 Feb 2000, J C Lawrence wrote: >> On Wed, 23 Feb 2000 16:18:20 +0000 Chris Withers >> <chrisw(a)nipltd.com> wrote: >> >> > Anyone know how I can do the equivalent of the following in >> dtml: ...various looping constructs... >> >> Basically you end up using an external method, not DTML. > Ummm, why? If you happen to know the compleat set of loop values prior to entering the loop, then yes, you can use various sorts of range(), or dtml-in over a list value to do it. However, that's not the general case of a loop (which contains a conditional as he showed), and DTML just doesn't attempt to handle looping constructs where the loop termination conditions are determined during the execution of the loop. -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=--

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Permissions, roles and creating instance of ZClass
by Jon Prettyman 23 Feb '00

23 Feb '00

I have a Product/ZClass called UserProperties/UserPropertiesClass. I have a folder Users which has mapped users with a role of contentSubscriber to the permission ``Add UserPropertiess''. I have an index_html file in Users that shows that an authenticated user has the role contentSubscriber and shows that the authenticated user has permission to ``Add UserPropertiess''. <dtml-if "AUTHENTICATED_USER.has_permission('Add UserPropertiess',PARENTS[0])"> Can Add UserPropertiess <dtml-else> Can NOT Add UserPropertiess </dtml-if> When an authenticated user calls /Users/ they see Can Add UserProperties. When the user calls /Users/manage they see the managment screen, if they select [ADD]UserProperities they get the login screen again. The URL that is getting accessed is: /Users/manage_addProduct/UserProperties/UserPropertiesClass_factory and the authentication is failing. I'm using GenericUserFolder with cookie validation and it appears that my _gufauth cookie gets set and then deleted through this transaction. -Jon

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Re: [Zope] For loops in dtml
by J C Lawrence 23 Feb '00

23 Feb '00

On Wed, 23 Feb 2000 16:18:20 +0000 Chris Withers <chrisw(a)nipltd.com> wrote: > Anyone know how I can do the equivalent of the following in dtml: ...various looping constructs... Basically you end up using an external method, not DTML. -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=--

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RE: [Zope] dtml-var syntax - am i being dumb ?
by Carlson, Christopher W. 23 Feb '00

23 Feb '00

Being a newbie and all, I hate to pipe in like this. However, the DTML manual reads: "Because of the /name/ attribute's frequent usage, there exists a short-hand version of the /name/ attribute in which the attribute name is omitted: Hello <dtml-var input_name capitalize>! When using the short-hand form of the /name/ attribute, the value is the first attribute in the tag and is not enclosed in quotation marks." I don't have any insight into the timesit() issue, though. :) --- Chris -----Original Message----- From: Matt Goodall [mailto:mgg@isotek.co.uk] Sent: Wednesday, February 23, 2000 11:21 AM To: Richard Moon Cc: zope(a)zope.org Subject: Re: [Zope] dtml-var syntax - am i being dumb ? Richard Moon wrote: > > Please stop me going mad. > > I created two python method. The first , called 'know_nothing' takes no > parameters but returns the string "I know nothing", > the second, called 'timesit" takes two parameters, multiplies them and > returns the result. When I come to use them from within > a DTML document why do I have to say > <dtml-var "timesit(1,2)"> > but > <dtml-var know_nothing> > > I assume the top one is short for > <dtml-var expr="timesit(1,2)"> > whereas the second is short for > <dtml-var name=know_nothing> (or even <dtml-var name="know_nothing"> since > that seems to work as well) > > (am I right ?) > > and I think I understand that the name attribute is actually a function > call with no parameters - right ? > > but why does > <dtml-var expr="know_nothing" not return anything to the calling object ? > > Just when you think you are getting the hang of it :-) I *think* that <dtml-var know_nothing> is actually equivalent to <dtml-var expr="know_nothing()"> however I can't test this at the moment so I may be completely wrong :-). /Matt _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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dtml-var syntax - am i being dumb ?
by Richard Moon 23 Feb '00

23 Feb '00

Please stop me going mad. I created two python method. The first , called 'know_nothing' takes no parameters but returns the string "I know nothing", the second, called 'timesit" takes two parameters, multiplies them and returns the result. When I come to use them from within a DTML document why do I have to say <dtml-var "timesit(1,2)"> but <dtml-var know_nothing> I assume the top one is short for <dtml-var expr="timesit(1,2)"> whereas the second is short for <dtml-var name=know_nothing> (or even <dtml-var name="know_nothing"> since that seems to work as well) (am I right ?) and I think I understand that the name attribute is actually a function call with no parameters - right ? but why does <dtml-var expr="know_nothing" not return anything to the calling object ? Just when you think you are getting the hang of it :-) Richard Moon richard(a)dcs.co.uk

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Zope hanging on a dereference???
by Michiel Toneman 23 Feb '00

23 Feb '00

Hi, This came up on the list some time ago, but this solution gets Zope (2.1.4) in an infinite loop. -------------------------------------------------------------- <dtml-in "objectIds()"> <dtml-let refID=sequence-item>  <dtml-with "_[ refID ]">  <dtml-var id>  </dtml-with> </dtml-let> </dtml-in> -------------------------------------------------------------- Any ideas? Greetings, Michiel Toneman -- >From a Sun Microsystems bug report (#4102680): "Workaround: don't pound on the mouse like a wild monkey."

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CatalogAware
by Tom Deprez 23 Feb '00

23 Feb '00

I've a problem which I can't solve. I made a small ZClass and has CatalogAware as base class. However, when I add an instance of this ZClass in a folder, and when I've a ZCatalog (id: TestCatalog) then this instance isn't added in the list of 'TestCatalog'. I thought that a CatalogAware Class just could do this... a) Am I missing here something? b) I'm not quite sure, but is this adding to a Catolog done automatically or do you have to specify somewhere in which catalog instance (here TestCatalog) the object has to be listed? How can I do this? Thanks in advance, Tom.

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object icons
by Terry Kerr 23 Feb '00

23 Feb '00

Hi, How can I assign icons to objects within my product. I am only registering one container class in the __init__.py of the product, but want other objects within the product to have icons even tho they are only explicitly created and added by the product itself. setting an icon='blah.gif' in the class doesn't work. I am having trouble working out what setting this attribute is actually doing. terry -- Terry Kerr (terry(a)adroitnet.com.au) Adroit Internet Solutions Pty Ltd (www.adroitnet.com.au) (03) 9888 8522 0414 938 124

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