couchdb view for /type/edition

edition.

{
    "_rev": "1-262566171", 
    "_id": "_design/type_edition", 
    "language": "javascript", 
    "views": {
        "by_title": {
            "map": "function(doc) { if (doc.type.key == '/type/edition' && doc.title) emit(doc.title, doc.key);}"
        }, 
        "by_isbn_10": {
            "map": "function(doc) { if (doc.type.key == '/type/edition' && doc.isbn_10) for (var i in doc.isbn_10) emit(doc.isbn_10[i], doc.key);}"
        }, 
        "by_authors": {
            "map": "function(doc) { if (doc.type.key == '/type/edition' && doc.authors) for (var i in doc.authors) emit(doc.authors[i].key, doc.key);}"
        }
    }
}