tests/dat/filterdesigndoc.txt

{
  "_id": "_design/test_filter",
    "filters": {
      "fruit": "function (doc, req) { return doc.kind === 'fruit' || (req && req.query && req.query.type === doc.type); }",
      "vegetable": "function (doc, req) { return doc.kind === 'vegetable' || (req && req.query && req.query.type === doc.type); }"
    }
}