On Di, 2012-07-24 at 10:37 +0200, Jens Georg wrote: <bump />
> As we discussed before, the current filtering is a "narrowing down" or a > logical "AND" of a selected set of filters. > How open would you be to a more broad solution of the filtering issue, > thinking of the tracker or similar future plug-ins? > > I've several proposals to make that work, all would imply some caps to > indicate whether the desired back-end really supports this or not: > > a) Simple: Instead of passing just one GrlOperationOptions, pass a list > of options. Filters inside the options would be still "AND", the list > would be considered a large "OR". > That of course implies that the result slicing is moved out of > GrlOperationOption, or, as a "quick hack/contract", is only obeyed in > the first list entry. > It has the benefit that it would be using existing stuff, not delay 0.2 > too much and if I'm not completely mistaken quite powerful already. > > b) More complex: Dissolve GrlOperationOptions, have several filter > objects and logical operations that can be combined freely, much like > QtGallery's filtering. > Has the benefit that it's more flexible in terms of what filters you can > glue together, you don't have to check if something in the > OperationOptions is really set, but might be awkward to construct > filters from C, that's where > > c) Filter Language: comes into the field. Have a simple language that is > easily transformable in other languages such as SQL, SPARQL etc. as a > substitute for filtering and the generic query language you already > provide. This sounds slightly more complex, but in fact could be build > upon both a) and b), with b) being easier, a) requiring some boolean > normalization in the process, then transforming to target filter > language. > > Thoughts, opinions, other ideas? > > _______________________________________________ > grilo-list mailing list > grilo-list@gnome.org > https://mail.gnome.org/mailman/listinfo/grilo-list > _______________________________________________ grilo-list mailing list grilo-list@gnome.org https://mail.gnome.org/mailman/listinfo/grilo-list
