Question

我有Couchbase，其中文档以json格式存储喜欢 QueueMessage / ABC123 QueueMessage / pqr456

以及QueueMessage / abc123

中的内容

  {
    "queue_list": {
     "type": "cards.create",
     "id": "abc123",
      "userId": "abcd",
      "deviceId": "abcd-1dg",
      "status": "Accepted"
     },
      "id": "abc123"
    }

和QueueMessage / pqr456

{
"queue_list": {
 "type": "cards.create",
 "id": "pqr456",
  "userId": "pqr",
  "deviceId": "abcd-78n",
  "status": "Accepted"
 },
  "id": "pqr456"
}

我想使用userid和device id创建couchbase视图。我怎么能用红宝石做到这一点？

Answer 1

require 'couchbase' 

#Connect to qlists bucket:
client = Couchbase.new( 
    node_list: ['127.0.0.1:8091'],
    bucket: 'qlists', 
    username: '7stud', 
    password: 'abc123'
)

#Enter some data in the qlists bucket:
client['QueueMessage/abc123'] = {

  "queue_list": {
      "type": "cards.create",
      "id": "abc123",
      "userId": "abcd",
      "deviceId": "abcd-1dg",
      "status": "Accepted"
  },

  "id": "abc123"
}

client['QueueMessage/pqr456'] = {

  "queue_list": {
      "type": "cards.create",
      "id": "pqr456",
      "userId": "pqr",
      "deviceId": "abcd-78n",
      "status": "Accepted"
  },

  "id": "pqr456"
}

#Create a view:
view_doc = %q[
{
  "_id": "_design/qlists",
  "language": "javascript",
  "views": {
    "userId_deviceId": {
      "map": "function(doc){ emit(doc.queue_list.userId, doc.queue_list.deviceId); }"
    }
  }
}
]

client.save_design_doc(view_doc)


#Use the view to retrieve data:
qlists = client.design_docs['qlists']

qlists.userId_deviceId.each do |row|
  puts "#{row.key}, #{row.value}"
end

--output:--
abcd, abcd-1dg
pqr, abcd-78n

我无法让reduce在视图中工作。

使用ruby在Couchbase中创建文档视图

1 个答案: