: I believe I'll need to write some custom code to accomplish what I want : (efficiently that is) but I'm unsure of what would be the best route to : take. Will this require a custom request handler? Search component?
You'll need a customized version of the FacetComponent if you want to do this all on the server side. : We have a similar category structure whereas we have top level-categories : and then sub-categories. I want to be able to perform a search and then only : return the top 3 top-level categories with their sub-categories also : faceted. The problem is I don't know what those top 3 top-level categories : are until after I search. the main complexity with a situation like this is how you model it. regardless of wether you do it server side or client side the straight forward appraoch is to do basic faceting on a "top level" category field, and then given the top three responses do secondary faceting o na field that contains the full category "breadcrumb" -- either using something like facet.prefix or by walking some other in memory data structure represending your category graph that lets you access the children of a particular category (depends wether you need complex rules to identify what documents are in a category) : Second way. Have the client send multiple requests on the backend. First to : determine the top 3 categories, then another for all the subcategories. This : involves more client side coding and I would prefer not to perform 2x the : requests. If at all possible I would like to do this on the Solr side. ...you've already got the conceptual model of how to do it, all you need now is to implement it as a Component that does the secondary-faceting in the same requests (which should definitley be more efficient since you can reuse the DocSets) instead of issuing secondary requets from your client -Hoss
