{
  "schema": {
    "bsonType": "object",
    "required": ["user_id","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": "用户id，参考uni-id-users表"
      },
	  "user_name": {
	    "bsonType": "string",
	    "description": "用户名或昵称，冗余设计",
        "title":"用户"
	  },
      "content": {
        "bsonType": "string",
        "description": "日志内容，如：修改密码",
        "title":"内容"
      },
      "ip": {
        "bsonType": "string",
        "description": "ip地址",
        "title": "IP"
      },
      "create_date": {
        "bsonType": "timestamp",
        "description": "创建时间",
        "title": "时间"
      }
    }
  },
  "index": []
}