mass assignment

简明释义

质量确定

英英释义

例句

1.You can enable mass assignment in your model to allow bulk updates from the client side.

您可以在模型中启用批量赋值，以允许从客户端进行批量更新。

2.In web development, using mass assignment can simplify the process of updating user profiles.

在网页开发中，使用批量赋值可以简化更新用户资料的过程。

3.The framework allows for mass assignment of attributes, making it easier to handle form submissions.

该框架允许属性的批量赋值，使处理表单提交变得更容易。

4.Be cautious with mass assignment as it can lead to security vulnerabilities if not properly managed.

小心使用批量赋值，因为如果管理不当可能会导致安全漏洞。

5.The API supports mass assignment, which allows developers to send multiple fields in a single request.

该API支持批量赋值，允许开发者在单个请求中发送多个字段。

作文

In the world of programming, particularly in web development, the term mass assignment refers to a technique where multiple attributes or fields of an object are populated with data in a single operation. This method is particularly useful when dealing with forms that contain a large number of input fields. Instead of assigning values to each field individually, developers can use mass assignment to streamline the process, making the code cleaner and more efficient. However, while this approach offers convenience, it also introduces potential security risks if not managed properly.For instance, consider a web application where users can update their profiles. The profile form might include fields such as name, email, password, and address. Using mass assignment, a developer can take all the input data from the form and assign it to a user object in one go. This is done by passing the entire request data to a method that handles the assignment. While this saves time and reduces boilerplate code, it can also expose vulnerabilities if the application does not validate which fields are allowed to be updated.One significant risk associated with mass assignment is the possibility of unintended data modification. For example, if a malicious user manipulates the form data to include fields that should not be accessible for editing, such as user roles or permissions, they could potentially elevate their privileges within the application. Therefore, it is crucial for developers to implement strong validation and whitelisting mechanisms to ensure that only the intended fields can be updated through mass assignment.To mitigate these risks, many frameworks provide built-in protections against mass assignment vulnerabilities. For instance, developers can specify which attributes are mass-assignable, often referred to as 'whitelisting'. By creating a list of safe attributes, the application can ignore any additional fields that are not included. This practice helps maintain the integrity of the application and protects sensitive information from unauthorized changes.Another important aspect to consider when using mass assignment is the impact on code maintainability. While it may seem advantageous to have less code to manage, over-reliance on this technique can lead to a lack of clarity about what data is being processed. Developers should strive for a balance between efficiency and readability, ensuring that their code remains understandable for future maintenance and updates.In conclusion, mass assignment is a powerful tool in web development that can significantly reduce the amount of code required for data handling. However, it comes with its own set of challenges, particularly concerning security and maintainability. Developers must be vigilant in implementing proper validation and whitelisting practices to safeguard their applications. By doing so, they can harness the benefits of mass assignment while minimizing potential risks, ultimately leading to a more robust and secure web application.

在编程领域，特别是在网页开发中，术语mass assignment指的是一种技术，通过该技术，可以在一次操作中填充对象的多个属性或字段。当处理包含大量输入字段的表单时，这种方法特别有用。开发人员可以使用mass assignment来简化过程，而不是逐个为每个字段分配值，从而使代码更简洁、更高效。然而，尽管这种方法提供了便利，但如果管理不当，也会引入潜在的安全风险。例如，考虑一个用户可以更新其个人资料的网络应用程序。个人资料表单可能包括姓名、电子邮件、密码和地址等字段。使用mass assignment，开发人员可以一次性获取表单中的所有输入数据，并将其分配给用户对象。这是通过将整个请求数据传递给处理分配的方法来实现的。虽然这节省了时间并减少了样板代码，但如果应用程序没有验证哪些字段可以更新，它也可能暴露出漏洞。与mass assignment相关的一项重大风险是意外的数据修改。例如，如果恶意用户操纵表单数据以包含不应允许编辑的字段（例如用户角色或权限），他们可能会在应用程序中提升自己的权限。因此，开发人员必须实施强有力的验证和白名单机制，以确保仅允许更新预期字段。为了减轻这些风险，许多框架提供了针对mass assignment漏洞的内置保护。例如，开发人员可以指定哪些属性是可以进行批量分配的，通常称为“白名单”。通过创建安全属性的列表，应用程序可以忽略任何未包含的额外字段。这种做法有助于维护应用程序的完整性，并保护敏感信息不被未经授权的更改。使用mass assignment时，另一个重要方面是对代码可维护性的影响。虽然依赖这种技术似乎有利于减少需要管理的代码量，但过度依赖可能导致对正在处理的数据缺乏清晰的了解。开发人员应该努力在效率和可读性之间取得平衡，确保他们的代码在未来的维护和更新中仍然易于理解。总之，mass assignment是网页开发中的一项强大工具，可以显著减少数据处理所需的代码量。然而，它也带来了自身的一系列挑战，特别是在安全性和可维护性方面。开发人员必须在实施适当的验证和白名单实践方面保持警惕，以保护他们的应用程序。通过这样做，他们可以利用mass assignment的好处，同时最小化潜在的风险，最终导致更强大和安全的网络应用程序。