[Zope] Re: Acquisition - I don't get it

[Malcolm Cleaton]

Each element of the path is acquired in turn, and acquisition doesn't
backtrack when something cannot be found.

So in this case, it starts at the current level and looks for "img", and
finds it. So far so good! Then, it starts from that img folder and looks
for your image "section_title.gif". It's not here! So, acquisition will
move on to search the parent of the img folder, and the parent of that,
and so on. Your section title image can't be found anywhere! Result: Not
found. At no point will the process backtrack and try other possible "img"
folders - when you say "img", you get the first one that can be acquired,
and then that's that.

To acquire images in the way you describe, you would need to do away with
your "img" folders, and include the images directly in each folder in your
hierarchy.

Thanks,
Malcolm.


On Mon, 31 Jan 2005 14:40:43 +0000, Jan Bruvoll wrote:
> Hi there,
> 
> I've been struggling with something that must be very basic, but I just 
> don't get it. Hopefully, there's somebody out there who could enlighten 
> me a little...
> 
> I have this site hierarchy, something like this:
> 
> /top
> /top/section1/
> /top/section1/chapter1
> /top/section1/chapter1/paragraph1
> /top/section1/chapter1/paragraph2
> /top/section1/chapter2
> /top/section1/chapter2/paragraph1
> /top/section2/
> /top/section2/chapter1
> /top/section2/chapter1/paragraph1
> 
> etc.
> 
> These are all folders with an index_html inside them. The template will 
> have, among other things, a site title image, a section title image, and 
> a page title image for each page.
> 
> The idea here is to be able to create a folder img/ at appropriate 
> levels of this hierarchy and use images section_title.gif, 
> chapter_title.gif, page_title.gif, etc. This might be where I've 
> misunderstood everything, but I was hoping to do something like this:
> 
> <img src="dummy.gif" class="title-img" tal:define="image 
> here/img/section_title.gif" tal:attributes="src image/absolute_url" />
> 
> If for instance looking at one of the paragraph pages, the template 
> would then, in my perfect world, start looking for an "img/" folder at 
> the current level, and within it a file named "section_title.gif", and 
> if it does not find it, it will try again one level up in the hierarchy, 
> until it then finds the section_title.gif in the folder 
> /top/section1/img/section_title.gif. Same goes for the other images, but 
> they would "hit" further down in the hierarchy so that I could 
> effectively let a "closer" image override one with the same name, but 
> further up.
> 
> Have I got it completely wrong? Is my thinking right, but my syntax 
> wrong? Haven't been able to get anywhere on this - all documentation I 
> can find gives hints and pointers, but I'm still stuck...
> 
> Any help & comments highly appreciated!
> 
> Best regards
> Jan
> 
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