pixelfed/app/Console/Commands/ImportCities.php

<?php
namespace App\Console\Commands;

use Illuminate\Console\Command;
use App\Place;
use DB;
use Illuminate\Support\Str;

class ImportCities extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'import:cities {chunk=1000}';
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Import Cities to database';
    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }
    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $path = storage_path('app/cities.json');
        if (!is_file($path)) {
            $this->error('Missing storage/app/cities.json file!');
            return;
        }
        if (Place::count() > 10) {
            $this->error('Cities already imported, aborting operation...');
            return;
        }
        $this->info('Importing city data into database ...');
        $cities = file_get_contents($path);
        $cities = json_decode($cities);
        $cityCount = count($cities);
        $this->info("Found {$cityCount} cities to insert ...");
        $bar = $this->output->createProgressBar($cityCount);
        $bar->start();
        $buffer = [];
        $count = 0;
        foreach ($cities as $city) {
            $country = $city->country == 'XK' ? 'Kosovo' : (new \League\ISO3166\ISO3166)->alpha2($city->country)['name'];
            $buffer[] = ["name" => $city->name, "slug" => Str::slug($city->name), "country" => $country, "lat" => $city->lat, "long" => $city->lng];
            $count++;
            if ($count % $this->argument('chunk') == 0) {
                $this->insertBuffer($buffer, $count);
                $bar->advance(count($buffer));
                $buffer = [];
            }
        }
        $this->insertBuffer($buffer, $count);
        $bar->finish();
        $this->info('Successfully imported ' . $count . ' entries.');
        return;
    }

    private function insertBuffer($buffer, $count)
    {
        DB::table('places')->insert($buffer);
    }
}