How to Add a Sequence Number in a Laravel Model Exporting to Excel

Описание: Learn how to include a sequence number in your Laravel model exports using Maatwebsite Excel in this step-by-step guide.
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This video is based on the question https://stackoverflow.com/q/63596335/ asked by the user 'trzew' ( https://stackoverflow.com/u/14059904/ ) and on the answer https://stackoverflow.com/a/63596619/ provided by the user 'Kamlesh Paul' ( https://stackoverflow.com/u/10834466/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Add a Sequence Number in a Laravel Model Exporting to Excel

As a beginner in web development, one might encounter challenges while implementing various functionalities in projects. For instance, if you are using Laravel 7 along with the Maatwebsite Excel package to generate Excel documents based on data from your models, you may have a need to enhance your exports with additional features. A common requirement is to include a sequence number in the exported file, allowing for better organization and tracking of entries.

In this post, we will walk through how to add a sequence number to your Excel export from a Laravel model step by step.

Understanding the Current Structure

You already have a code structure to export reservations from your database to an Excel file. Here’s a brief overview of your existing setup:

Model Definition: You have a Reservation model that interacts with the database table reservations.

Export Class: You created a class called ReservationExport which defines how the data should be fetched and organized for export.

Excel Download: You have a method to handle the download request and generate the Excel file.

The Existing Code

Here’s the key part of your existing code:

[[See Video to Reveal this Text or Code Snippet]]

Adding the Sequence Number

Now, let’s dive into how you can incorporate a sequence number as a new column in your exported Excel file.

Steps to Add Sequence Number

Update the Headings: We will need to add a new heading for our sequence number (SN) in the headings method.

Modify the Collection: In the collection method, we will append a sn property to each reservation item, which will hold the sequence number.

Updated Code Implementation

Here’s how you can make those adjustments:

[[See Video to Reveal this Text or Code Snippet]]

Key Changes Explained

Headings Update: The headings method now includes ‘SN’ at the beginning of the array to represent our new sequence number column.

Collection Adjustment: In the collection method, we now use map to loop through the reservation data and append an sn key to each record, which gives us the desired sequence number (starting from 1).

Conclusion

By following the steps outlined above, you've successfully modified your Laravel export functionality to include a sequence number in your Excel document. This small addition can significantly enhance the usability of your reports.

If you run into any errors or require further clarifications, feel free to reach out for additional support. Happy coding!