invoiceninja/app/Http/Middleware/StartupCheck.php

<?php

namespace App\Http\Middleware;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Input;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\Session;
use Closure;


/**
 * Class StartupCheck.
 */
class StartupCheck
{
    /**
     * Handle an incoming request.
     *
     * @param Request $request
     * @param Closure $next
     *
     * @return mixed
     */
    public function handle(Request $request, Closure $next)
    {
      
        $cached_tables = unserialize(CACHED_TABLES);

        if (Input::has('clear_cache')) {
            Session::flash('message', 'Cache cleared');
        }
        foreach ($cached_tables as $name => $class) {
            if (Input::has('clear_cache') || ! Cache::has($name)) {
                // check that the table exists in case the migration is pending
                if (! Schema::hasTable((new $class())->getTable())) {
                    continue;
                }
                if ($name == 'paymentTerms') {
                    $orderBy = 'num_days';
                } elseif ($name == 'fonts') {
                    $orderBy = 'sort_order';
                } elseif (in_array($name, ['currencies', 'industries', 'languages', 'countries', 'banks'])) {
                    $orderBy = 'name';
                } else {
                    $orderBy = 'id';
                }
                $tableData = $class::orderBy($orderBy)->get();
                if ($tableData->count()) {
                    Cache::forever($name, $tableData);
                }
            }
        }

        $response = $next($request);

        return $response;
    }
}