How to use Plugins for ID Generation In Javascript
Mongoose allows us to create and reuse plugins to extend schema functionality. We can encapsulate ID generation logic within a plugin and apply it to multiple schemas across our application.
// Define a plugin called idGeneratorPlugin to add customId field and pre-save hook to the schema
const idGeneratorPlugin = function(schema, options) {
// Add a customId field to the schema
schema.add({ customId: String });
// Define a pre-save hook to generate a customId if not already set
schema.pre('save', function(next) {
if (!this.customId) {
// Call the generateCustomId function to generate a custom ID
this.customId = generateCustomId();
}
next();
});
// Function to generate a custom ID
function generateCustomId() {
// Placeholder logic to generate a custom ID
return 'generatedID123'; // Return a hardcoded custom ID for demonstration purposes
}
};
// Apply the idGeneratorPlugin to the customSchema
customSchema.plugin(idGeneratorPlugin);
By applying the idGeneratorPlugin to our schema, we can easily generate custom IDs for multiple models with minimal code duplication.
How to create an id using mongoose in Javascript?
Mongoose is a powerful tool that simplifies MongoDB operations by providing a structured way to define schemas and models. With Mongoose, developers can define relationships between data, apply validation rules, and create reusable query logic.
In this article, We will learn about Mongoose, Defining a Mongoose Schema and Default ID Generation in Mongoose, Custom ID Field in Mongoose Generating Custom IDs with Hooks and Using Plugins for ID Generation in detail.