grantRolesToUser

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Definition定义

grantRolesToUser

Grants additional roles to a user.向用户授予其他角色。

The grantRolesToUser command uses the following syntax:grantRolesToUser命令使用以下语法：

{ grantRolesToUser: "<user>",
  roles: [ <roles> ],
  writeConcern: { <write concern> },
  comment: <any>
}

The command has the following fields:该命令包含以下字段：

Field字段Type类型Description描述
grantRolesToUserstringThe name of the user to give additional roles.要赋予其他角色的用户的名称。
rolesarrayAn array of additional roles to grant to the user.要授予用户的其他角色的数组。
writeConcerndocument

Optional. 可选。The level of write concern for the operation. 操作的写入关注级别。See Write Concern Specification.请参阅写入关注规范。

commentany

Optional. 可选。A user-provided comment to attach to this command. Once set, this comment appears alongside records of this command in the following locations:用户提供了附加到此命令的注释。设置后，此注释将与此命令的记录一起显示在以下位置：

A comment can be any valid BSON type(string, integer, object, array, etc).注释可以是任何有效的BSON类型（字符串、整数、对象、数组等）。

New in version 4.4.在版本4.4中新增。

In the roles field, you can specify both built-in roles and user-defined roles.在roles字段中，可以指定内置角色和用户定义角色。

To specify a role that exists in the same database where grantRolesToUser runs, you can either specify the role with the name of the role:要指定运行grantRolesToUser的同一数据库中存在的角色，可以使用角色名称指定角色：

"readWrite"

Or you can specify the role with a document, as in:也可以使用文档指定角色，如：

{ role: "<role>", db: "<database>" }

To specify a role that exists in a different database, specify the role with a document.若要指定存在于其他数据库中的角色，请使用文档指定该角色。

Required Access所需访问权限

You must have the grantRole action on a database to grant a role on that database.必须对数据库执行grantRole操作才能在该数据库上授予角色。

Example示例

Given a user accountUser01 in the products database with the following roles:在products数据库中为用户accountUser01指定以下角色：

"roles" : [
    { "role" : "assetsReader",
      "db" : "assets"
    }
]

The following grantRolesToUser operation gives accountUser01 the read role on the stock database and the readWrite role on the products database.下面的grantRolesToUser操作为accountUser01提供了stock数据库上的read角色和产品数据库上的readWrite角色。

use products
db.runCommand( { grantRolesToUser: "accountUser01",
                 roles: [
                    { role: "read", db: "stock"},
                    "readWrite"
                 ],
                 writeConcern: { w: "majority" , wtimeout: 2000 }
             } )

The user accountUser01 in the products database now has the following roles:products数据库中的用户accountUser01现在具有以下角色：

"roles" : [
    { "role" : "assetsReader",
      "db" : "assets"
    },
    { "role" : "read",
      "db" : "stock"
    },
    { "role" : "readWrite",
      "db" : "products"
    }
]
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