Re: [Archetypes-devel] Re: auto-sortable folders

Previously Encolpe Degoute wrote:
> You should sort on three attributes:
>  sort: ('created', 'alpha', 'alphanum', 'modified', 'reverse_created',
>          'reverse_alpha', 'reverse_alphanum', 'reverse_modified')
>  sort_method: a method without argument
>  sort_expression: any TALES expression with a reasonnable context

This is way more complex than what users are familiar with. 99% of all
sorting will be on a single attribute and be ascending or descending.
The other 1% will use two or more attributes in a specific order. If you
want pseudocode that becomes:

  class SortKey(interface):
     attribute = Attribute("name of the attribute on which we sort")
     ascending = Attribute("sort ascending. if false use descending sort")
    
  class SortOrder(interface):
     keys = Attribute("list of sort keys used for soring")

     def sortlist(objects):
        "sort the list of objects according to our sort keys"

Wichert.

-- 
Wichert Akkerman <[email protected]>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.


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