{
  "schema": {
    "bsonType": "object",
    "required": ["content"],
	"permission": {
	  "read": false, 
	  "create": false, 
	  "update": false,
	  "delete": false
	},
    "properties": {
      "_id": {
        "description": "ID，系统自动生成"
      },
      "user_id": {
        "bsonType": "string",
        "description": "收藏者id，参考uni-id-users表"
      },
      "device_id": {
        "bsonType": "string",
        "description": "设备id"
      },
      "content": {
        "bsonType": "string",
        "description": "搜索内容"
      },
      "create_date": {
        "bsonType": "timestamp",
        "description": "统计时间"
      }
    }
  },
  "index": []
}