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Sails Js How I Do Pagination In Sails Js

Pagination is a crucial feature in web development, allowing users to easily navigate through large sets of data. In this article, we'll explore how to implement pagination in Sails.js, a popular Node.js framework that simplifies building web applications.

To implement pagination in Sails.js, you'll need to follow a few steps. The first step is to install the `sails-hook-pagination` package, which provides the necessary tools to implement pagination in your Sails.js project. You can install it using npm by running the command `npm install sails-hook-pagination`.

Once you have installed the `sails-hook-pagination` package, the next step is to configure pagination for your models. You can do this by adding a `paginate` property to your model definition in the `config/models.js` file. This property allows you to specify the default pagination settings for the model.

For example, if you want to set the default page size to 10 for a specific model, you can define the `paginate` property as follows:

Javascript

module.exports.models = {
  paginate: {
    default: 10
  }
};

After configuring pagination settings for your models, you can then use these settings in your controller actions to fetch paginated data. In your controller action, you can use the `find` method provided by Waterline, the ORM used in Sails.js, along with the `populate` method to fetch paginated data.

Here's an example of how you can fetch paginated data in a controller action using the `find` method:

Javascript

module.exports = {
  async getProducts(req, res) {
    const { page, limit } = req.query;
    
    const products = await Product.find()
      .populate('category')
      .paginate({ page, limit });

    return res.json(products);
  }
};

In this example, we extract the `page` and `limit` parameters from the request query string to determine the current page and page size. We then use the `paginate` method provided by the `sails-hook-pagination` package to fetch the paginated data.

Finally, to display the paginated data in your views, you can use front-end libraries like Bootstrap or custom CSS to create a user-friendly pagination interface. You can use the pagination metadata returned by the API to generate the pagination links and display them to the user.

By following these steps, you can easily implement pagination in your Sails.js project and provide a seamless browsing experience for users when dealing with large sets of data. Pagination not only improves user experience but also enhances the performance of your web application by reducing the amount of data loaded at once.

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