Laravel Excel Export for Large Data
Laravel provides a convenient package called “Laravel-Excel” which allows you to easily export large data sets to Excel or CSV formats. It handles the chunking of data and ensures efficient memory usage, making it suitable for exporting large volumes of data.
To get started, first, you need to install the “Laravel-Excel” package using Composer. Open your terminal and run the following command:
composer require maatwebsite/excel
Once the package is installed, you need to add the service provider and facade to your Laravel configuration. Open the “config/app.php” file and add the following lines inside the ‘providers’ and ‘aliases’ arrays respectively:
'providers' => [
// ...
Maatwebsite\Excel\ExcelServiceProvider::class,
],
'aliases' => [
// ...
'Excel' => Maatwebsite\Excel\Facades\Excel::class,
],
Now, you can start using the Laravel-Excel package to export large data. Let’s say you have a large dataset of users and you want to export their information to an Excel file. Here’s an example:
use App\Exports\UsersExport;
use Maatwebsite\Excel\Facades\Excel;
public function exportUsers()
{
return Excel::download(new UsersExport, 'users.xlsx');
}
In the above example, we’re using the “UsersExport” class to define the data to be exported. You can create this class by running the following Artisan command:
php artisan make:export UsersExport --model=User
This command will generate the “UsersExport” class in the “Exports” folder. Inside this class, you can define the query or logic to retrieve the users data that you want to export. For example:
use App\User;
use Maatwebsite\Excel\Concerns\FromQuery;
class UsersExport implements FromQuery
{
public function query()
{
return User::query();
}
}
In the above example, we’re using the “FromQuery” interface provided by the Laravel-Excel package. It allows you to define a query to retrieve the data to be exported. You can also use other interfaces like “FromCollection” or “FromView” depending on your requirements.
Finally, when you visit the “exportUsers” route or call the “exportUsers” controller method, it will generate a downloadable Excel file named “users.xlsx” containing the data from your users table.
Note: The Laravel-Excel package also offers many customization options for formatting and styling your exported Excel files. You can refer to the official documentation for more details and examples.