Home > Backend Development > Golang > How Can I Execute JavaScript Expressions Within MongoDB Document Fields?

How Can I Execute JavaScript Expressions Within MongoDB Document Fields?

Barbara Streisand
Release: 2024-12-16 08:49:11
Original
806 people have browsed it

How Can I Execute JavaScript Expressions Within MongoDB Document Fields?

Evaluating JavaScript Expressions in MongoDB Document Fields

Inserting a dynamically assigned value to a field in a MongoDB document can be achieved through server-side code execution. However, the presented code snippet stores a script instead of executing it.

According to MongoDB documentation, server-side functions can be stored in the special collection system.js.

Using Stored Procedures:

To call a stored procedure from Go using the mgo driver, utilize the Run() method of the mgo.Database type. Issue an eval command with the JavaScript code to be executed server-side as an argument:

db.Run(bson.M{"eval": "myStoredFunction();"})
Copy after login

Code Embedding Limitations:

It's important to note that embedding JavaScript code directly in an insert statement is not supported in MongoDB. Instead, use stored procedures or other techniques for executing server-side code.

The above is the detailed content of How Can I Execute JavaScript Expressions Within MongoDB Document Fields?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template