[GNUe-dev] Recent additions to XML-tree of <datasource>-tag

[Johannes Vetter]

Hi,

I've added the "sortorder" and "sortfield" tags to the XML-Tree of
GDataSource today. Following is an example:

<sortorder>
  <sortfield name="foo" descending="True" />
  <sortfield name="bar" />
  ...
</sortorder>

NOTE: default (if omitted) for 'descending' attribute is 'False'

This addition makes the use of 'order_by' obsolete, although it's still
supported but a depreciation warning will be printed to stdout.


What does this mean to Application Server:
------------------------------------------

Of course appserver is now able to use this feature too. 
Using the functions "request ()" or "find ()" you an specifiy an order 
like [('foo', True), ('bar', False)] (same order as the example shown
above).

But you don't need to change all your apps right now, since appserver
treats all 'old' sequences with a 'descending=False' default. So the
sort-order "['foo', 'bar']" maps consequently to [('foo', False),
('bar', False)].

Note: It makes no difference wether to use Tuples or Sequences, so 
[('foo', True), ('bar', False)] 
is the same as 
[['foo', True], ['bar', False]]


Thanks,
Johannes


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