Laravel 10 Large Excel Import Csv Example

So, let's simply see the example code:

Step 1: Install Laravel

first of all, we need to get a fresh Laravel version application using the bellow command, So open your terminal OR command prompt and run the bellow command:

composer create-project laravel/laravel example-app

Step 2: Create Products Table

Here, we need to create a database migration for the "products" table and also we will create a model for the "products" table.

php artisan make:migration create_products_table

Migration:

<?php
  
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
  
return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('products', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('amount');
            $table->text('description');
            $table->timestamps();
        });
    }
  
    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('products');
    }
};

php artisan migrate

Step 3: Create Seeder

Here, we will create ProductSeeder class and write code of import large csv file.

Make sure you created products.csv file with "name", "amount" and "description" columns. Put that file in public folder.

Now, let's create seeder class using following command:

php artisan make:seeder ProductSeeder

Let's update following seeder code:

database/seeders/ProductSeeder.php

<?php
  
namespace Database\Seeders;
  
use Illuminate\Database\Console\Seeds\WithoutModelEvents;
use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\LazyCollection;
  
class ProductSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        DB::disableQueryLog();
        DB::table('products')->truncate();
  
        LazyCollection::make(function () {
            $handle = fopen(public_path("products.csv"), 'r');
            
            while (($line = fgetcsv($handle, 4096)) !== false) {
                $dataString = implode(", ", $line);
                $row = explode(',', $dataString);
                yield $row;
            }
  
            fclose($handle);
  
        })
        ->skip(1)
        ->chunk(1000)
        ->each(function (LazyCollection $chunk) {
  
            $records = $chunk->map(function ($row) {
                          return [
                            "name" => $row[0],
                            "amount" => $row[1],
                            "description" => $row[2]
                          ];
                      })->toArray();
            
            DB::table('products')->insert($records);
  
        });
    }
}

Now you need to run following command for run all listed seeder:

php artisan db:seed --class=ProductSeeder

Now, you will able to see new row will be added in your products table.

Now I think you will understand how seeding works and we have to use it in our laravel app.

I hope it can help you...