: Now a client wants to use multi select faceting. He calls the following API: : http://localhost:8983/solr/collection1/search?q=*:*&facet.field={!ex=foo}category&fq={!tag=foo}category : :"cat"
: Putting the facet definitions in "appends" cases it to facet category 2 : times. : : Is there a way where he does not have to provide all the facet.field : parameters in the API call? What you are asking is essentially "I want to configure faceting on X and Y by default, but i want clients to be able to add faceting on Z and have that disable faceting on X while still faceting on Y" It doens't matter that X and Z are both field facets based arround the field name "category" -- the tag exclusion makes them completley different. The basic default/invariants/appends logic doesn't give you any easy mechanism to ignore arbitrary params like that - you could probably write a custom component that inspected the params and droped ones you don't want, but this wouldn't make sense as generalized logic in the FacetComponent since faceting on a field both with and w/o a tag expclusion at the same time is a very common use case. -Hoss
