MongoDB匹配数组中的字

Question

我需要帮助来解决我的问题，我想过滤掉我的产品中的匹配。

我的JSON转储

{ 
    "_id" : ObjectId("568ff9d4d857b6850692e589"), 
    "UUID" : "b80b780d-be21-40f9-aee6-b321b663cb76", 
    "CNETID" : "S12785103", 
    "Url" : "intel-xeon-e5-2620v2-2-1-ghz-processor-6-kerner-15-mb-cache", 
    "LastChanged" : "2016-01-22 09:04:34", 
    "Manufacturer" : { 
     "UUID" : "d6e0233f-2ba1-11e5-a2ac-0050569068de", 
     "Title" : "Lenovo", 
     "Url" : "lenovo", 
     "SKU" : "00FE669", 
     "EAN" : "0883436496476" 
    }, 
    "Store" : { 
     "Title" : "Intel Xeon E5-2620V2 - 2.1 GHz Processor - 6 kerner - 15 mb cache", 
     "Description" : "", 
     "Price" : "572200", 
     "PriceDiscount" : "0", 
     "AllowDisplay" : "1", 
     "Activated" : "1", 
     "LastSynced" : "2016-01-21 17:22:48" 
    }, 
    "Category" : [ 
     "b085ebc3-0f0f-48c8-817f-fae04093d092" 
    ], 
    "PhotoCDN" : [], 
    "Specifications" : { 
     "Small" : [ 
      { 
       "Header" : "Produktbeskrivelse", 
       "Body" : "Intel Xeon E5-2620V2/2.1 GHz Processor" 
      }, 
      { 
       "Header" : "Produkttype", 
       "Body" : "Processor" 
      }, 
      { 
       "Header" : "Processortype", 
       "Body" : "Intel Xeon E5-2620V2" 
      }, 
      { 
       "Header" : "Antal kerner", 
       "Body" : "6 kerner" 
      }, 
      { 
       "Header" : "Cache", 
       "Body" : "15 MB" 
      }, 
      { 
       "Header" : "Antal processorer", 
       "Body" : "1" 
      }, 
      { 
       "Header" : "Clock-frekvens", 
       "Body" : "2.1 GHz" 
      }, 
      { 
       "Header" : "Max Turbo Speed", 
       "Body" : "2.6 GHz" 
      }, 
      { 
       "Header" : "Bushastighed", 
       "Body" : "1600 MHz" 
      }, 
      { 
       "Header" : "Producentgaranti", 
       "Body" : "1-års garanti" 
      }, 
      { 
       "Header" : "Designet for", 
       "Body" : "System x3550 M4" 
      } 
     ], 
     "Full" : [ 
      { 
       "Header" : "Produkttype", 
       "Body" : "Processor" 
      }, 
      { 
       "Header" : "Type/Model", 
       "Body" : "Intel Xeon E5-2620V2" 
      }, 
      { 
       "Header" : "Antal kerner", 
       "Body" : "6 kerner" 
      }, 
      { 
       "Header" : "Cache", 
       "Body" : "15 MB" 
      }, 
      { 
       "Header" : "Detaljer for cache-hukommelse", 
       "Body" : "- 15 MB" 
      }, 
      { 
       "Header" : "Antal processorer", 
       "Body" : "1" 
      }, 
      { 
       "Header" : "Clock-frekvens", 
       "Body" : "2.1 GHz" 
      }, 
      { 
       "Header" : "Max Turbo Speed", 
       "Body" : "2.6 GHz" 
      }, 
      { 
       "Header" : "Bushastighed", 
       "Body" : "1600 MHz" 
      }, 
      { 
       "Header" : "Termisk designstrøm", 
       "Body" : "80 W" 
      }, 
      { 
       "Header" : "Installeret størrelse", 
       "Body" : "15 MB" 
      }, 
      { 
       "Header" : "Service & Support", 
       "Body" : "1-års garanti" 
      }, 
      { 
       "Header" : "Detaljer om service & support", 
       "Body" : "Begrænset garanti - 1 år" 
      }, 
      { 
       "Header" : "Designet for", 
       "Body" : "Lenovo System x3550 M4" 
      } 
     ], 
     "Search" : { 
      "T0000002" : "Processor", 
      "T0000162" : "Intel Xeon E5-2620V2", 
      "T0003956" : "6 kerner", 
      "T0001106" : "15 MB", 
      "T0003943" : "- 15 MB", 
      "T0000163" : "1", 
      "T0000164" : "2.1 GHz", 
      "T0003412" : "2.6 GHz", 
      "T0000366" : "1600 MHz", 
      "T0005726" : "80 W", 
      "T0000110" : "15 MB", 
      "T0000025" : "1-års garanti", 
      "T0000026" : "Begrænset garanti - 1 år", 
      "T0003807" : "Lenovo System x3550 M4" 
     } 
    } 
} 

，我想的是找到我的JSON树

Specifications -> Full -> Array[Body] 

内的关键字和之后我需要指数在这费尔德到是否可能。

Answer 1

有一个很好的说明了如何在文档中使用数组搜索：

https://docs.mongodb.org/v3.0/tutorial/query-documents/#arrays

例如使用Prodkuttype =处理器查找所有文档：

db.cat.find({ 
    "Specifications.Full":{ 
    $elemMatch:{ 
     Header: "Produkttype", Body: "Processor" 
}}})