Solr multiple facet with ex and tag functions -


i using solr 4.10 , our requirement have multiple facets. each of facet should filter should impact selected facet, not other facets.

for example, lets there 2 facets brand , type. when user select brand nikon, should impact type facet, not brand facet. similar behavior type.

i tried implementing tag , ex function , query comes below,

/select?q=query&wt=json&start=0&rows=10&facet=true&fq={!tag=brand}brand:(canon,nikon)&fq={!tag=type}type:(tv)&facet.mincount=1&facet.field={!ex=brand}brand&facet.field={!ex=type}type&fl=id,brand,type

this works fine of cases, when there 0 results, somehow solr returns facets 1 of facet. above query, value in type, though there no documents in response.

below response get,

{ "response": {     "numfound": 0,     "start": 0,     "docs": [] }, "facet_counts": {     "facet_queries": {},     "facet_fields": {         "type": [             "tv",             4         ],         "brand": []     },     "facet_dates": {},     "facet_ranges": {},     "facet_intervals": {} }

}


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