Abfragen innerhalb Arrays

Question

Ich habe eine Reihe von Dokumenten in meinem rethinkdb die wie folgt aussehen.

[ 
    { 
     "complete": false, 
     "blobs": [ 
      { 
       "base64": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
       "fingerprint": "123", 
       "data": { 
        "meta1": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Serial Number": 123456, 
        "hash": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
        "meta2": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Info:": { 
         "length": 1024 
        }, 
        "Validity": { 
         "begin": "202808Z", 
         "end": "19960129000000Z" 
        }, 
        "Version": 0, 
        "item count:": 0 
       } 
      }, 
      { 
       "base64": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
       "fingerprint": "456", 
       "data": { 
        "meta1": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Serial Number": 123456, 
        "hash": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
        "meta2": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Info:": { 
         "length": 1024 
        }, 
        "Validity": { 
         "begin": "202808Z", 
         "end": "19960129000000Z" 
        }, 
        "Version": 0, 
        "item count:": 0 
       } 
      }, 
      { 
       "base64": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
       "fingerprint": "789", 
       "data": { 
        "meta1": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Serial Number": 123456, 
        "hash": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
        "meta2": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Info:": { 
         "length": 1024 
        }, 
        "Validity": { 
         "begin": "202808Z", 
         "end": "19960129000000Z" 
        }, 
        "Version": 0, 
        "item count:": 0 
       } 
      }, 
      { 
       "base64": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
       "fingerprint": "101112", 
       "data": { 
        "meta1": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Serial Number": 123456, 
        "hash": "MIICPDCCAaUCEHC65B0Q2Sk0tjjKe", 
        "meta2": { 
         "a": "abc", 
         "b": "bcd", 
         "c": "cdf" 
        }, 
        "Info:": { 
         "length": 1024 
        }, 
        "Validity": { 
         "begin": "202808Z", 
         "end": "19960129000000Z" 
        }, 
        "Version": 0, 
        "item count:": 0 
       } 
      } 
     ], 
     "port": 443, 
     "items": [ 
      { 
       "blobs": [ 
        "123", 
        "457", 
        "789", 
        "10112" 
       ]} 
     ], 
     "secure": true, 
     "fast": true 
    } 
] 

Jedes Dokument enthält mehrere "Blobs". Ich brauche alle Blobs in alle Dokumente abzufragen und geben die „Blob“, die den Fingerabdruck übereinstimmt. Ich kämpfe um herauszufinden, wie das aussehen soll.

habe ich versucht, diese Abfrage aber gibt alle Dokumente.

r.db('db').table('data').filter(r.row('blobs').contains(function(product) { 
return product('fingerprint').eq('742c3192e607e424eb4549542be1bbc53e6174e2'); 
})) 

Answer 1

Macht das, was Sie wollen?

table.concatMap(function(row) { return row('blobs'); }).filter(function(blob) { 
    return blob('fingerprint').eq('742c3192e607e424eb4549542be1bbc53e6174e2'); 
})