[Cubicweb] some cubicweb goals for 2010

[Sylvain Thénault]

On 26 avril 12:24, Nicolas Chauvat wrote:
> Hi,
> 
> what I would like to have is the ability to apply views to lists of
> objects, like:
> 
>   project = _cw.entity_from_eid(1234)
>   tickets = project.reverse_done_in
>   self.wview('table', tickets, 'null')

   project = _cw.entity_from_eid(1234)
   self.wview('table', project.related('done_in', 'object', 'null'))
 
> or the ability to get the RQL for a list of objects, like:
> 
>   project = _cw.entity_from_eid(1234)
>   tickets = project.reverse_done_in
>   self.build_url(rql=tickets.rql)

   project = _cw.entity_from_eid(1234)
   rset = project.related('done_in', 'object', 'null')
   self.build_url(rql=rset.printable_rql())

> or make it easier to manipulate rql queries, like:
> 
>   project = _cw.entity_from_eid(1234)
>   tickets = project.reverse_done_in
>   rql = tickets.rql.add('T in_state "open"') # lots of open questions here

we already to such kind of things heavily, using the rql st api. There
are already high level methods to do things such as adding a restriction
(could be improved though).

   project = _cw.entity_from_eid(1234)
   rset = project.related('done_in', 'object', 'null')
   union = rset.syntax_tree().children[0] # first Union node
   self.add_constant_restriction(union.get_variable('X'), 'type', 'bug', 'String')
   rql = union.as_string()

-- 
Sylvain Thénault                               LOGILAB, Paris (France)
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