Re: [Zope] Strange CSS inclusion BUG
- Original Message - From: "Dieter Maurer" <[EMAIL PROTECTED]> To: "Li Dongfeng" <[EMAIL PROTECTED]> Cc: "Zope" <[EMAIL PROTECTED]> Sent: Wednesday, September 20, 2000 3:25 AM Subject: Re: [Zope] Strange CSS inclusion BUG > Li Dongfeng writes: > > To use CSS file, I put the following line in the head of HTML files: > > > > > > " > > rel="stylesheet" type="text/css"> > > > > > > Where "local_css" is a DTML document containing CSS style sheet. > > But the DTML generates the following error message: > > > > Error Type: AttributeError > > Error Value: 'string' object has no attribute 'absolute_url' > > > > If I strip the > Why is the DTML document local_css changed into a string > > after ? > That is a dtml-if caveat! > > The dtml-if documentation says that dtml-if caches its > variable value to save time, in case the variable is > in fact a function that takes long to call. > > What happens in your case: > looks up "local_css" and because > it is callable, it gets called (i.e. rendered). > The result is a string. This string is bound to > "local_css" inside the > Therefore, "local_css.absolute_url" results in > the error you observed. > > You can replace by > . > This really works! Even when the request is from a folder below where local_css resides. This success sugests that "_.has_key()" also use aquisition to search for objects. > This will not be equivalent to "" but > good enough for your purpose. > > If you want to emulate it more faithfull, you could > use: > > > This is equivalent ot "" with the > exception of the caching. > > > Dieter ___ Zope maillist - [EMAIL PROTECTED] 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 )
[Zope] Strange CSS inclusion BUG
To use CSS file, I put the following line in the head of HTML files: " rel="stylesheet" type="text/css"> Where "local_css" is a DTML document containing CSS style sheet. But the DTML generates the following error message: Error Type: AttributeError Error Value: 'string' object has no attribute 'absolute_url' If I strip the ? ___ Zope maillist - [EMAIL PROTECTED] 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 )
Re: [Zope] Help: PATH_INFO==>object
Thanks for the correction. Now I see that PATH_INFO refers to the current page, not the calling page. I think the hidden input field solution is OK for me. What is the *Traversal interface*? Do you mean the PARENTS enviroment? - Original Message - From: "Martijn Pieters" <[EMAIL PROTECTED]> To: "Li Dongfeng" <[EMAIL PROTECTED]> Cc: "Zope" <[EMAIL PROTECTED]> Sent: Friday, September 08, 2000 5:01 PM Subject: Re: [Zope] Help: PATH_INFO==>object > On Fri, Sep 08, 2000 at 11:32:39AM +0800, Li Dongfeng wrote: > > I am writing a service for other pages to > > use as form action. How can I reference > > the caller object in DTML/python? > > > > I can only think of this: First use PARENTS[-1] > > to get to the root object of the site. > > Then split the PATH_INFO containing the caller's > > path, and go down from the root to every subfolder > > in PATH_INFO and then get to the caller object. > > But this is not very elegant. > > > > Can anyone give better solution to this? > > PATH_INFO only tells you something about the service object, not about the > calling page. If you use this as a FORM action target, it's the browser > that makes the call, not Zope. > > You can, in many cases, determine the browser URL by looking at > HTTP_REFERER, but many people and companies use proxies and firewalls to > filter this out nowadays; it is considered sensitive information. > > If this app is targeted at a intranet or other controlled environment, you > could dictate the presence of HTTP_REFERER, and rely on that, otherwise > you will have to add a reference as a hidden form field generated by the > calling object. > > Once you have a URL of the calling object, you can use the Traversal > interface to turn that URL into an object reference. > > -- > Martijn Pieters > | Software Engineermailto:[EMAIL PROTECTED] > | Digital Creations http://www.digicool.com/ > | Creators of Zope http://www.zope.org/ > | ZopeStudio: http://www.zope.org/Products/ZopeStudio > - > > ___ > Zope maillist - [EMAIL PROTECTED] > 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 ) > ___ Zope maillist - [EMAIL PROTECTED] 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 )
[Zope] Help: PATH_INFO==>object
I am writing a service for other pages to use as form action. How can I reference the caller object in DTML/python? I can only think of this: First use PARENTS[-1] to get to the root object of the site. Then split the PATH_INFO containing the caller's path, and go down from the root to every subfolder in PATH_INFO and then get to the caller object. But this is not very elegant. Can anyone give better solution to this? ___ Zope maillist - [EMAIL PROTECTED] 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 )
