Replace importer with AJAX powered; better error handling #443 (#447)

* Replace importer with AJAX powered; better error handling #443

* Formatting

* Fix command line importer

modules/Installer/Services/Importer/Importers/ClearDatabase.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Modules\Installer\Services\Importer\Importers;
+
+use App\Models\Acars;
+use App\Models\Airline;
+use App\Models\Airport;
+use App\Models\Bid;
+use App\Models\Expense;
+use App\Models\File;
+use App\Models\Flight;
+use App\Models\FlightField;
+use App\Models\FlightFieldValue;
+use App\Models\Journal;
+use App\Models\JournalTransaction;
+use App\Models\News;
+use App\Models\Pirep;
+use App\Models\Subfleet;
+use App\Models\User;
+use App\Models\UserAward;
+use Illuminate\Support\Facades\DB;
+use Modules\Installer\Services\Importer\BaseImporter;
+
+class ClearDatabase extends BaseImporter
+{
+    /**
+     * Returns a default manifest just so this step gets run
+     */
+    public function getManifest(): array
+    {
+        return [
+            [
+                'importer' => get_class($this),
+                'start'    => 0,
+                'end'      => 1,
+                'message'  => 'Clearing database',
+            ],
+        ];
+    }
+
+    public function run($start = 0)
+    {
+        $this->cleanupDb();
+    }
+
+    /**
+     * Cleanup the local database of any users and other data that might conflict
+     * before running the importer
+     */
+    protected function cleanupDb()
+    {
+        $this->info('Running database cleanup/empty before starting');
+
+        DB::statement('SET FOREIGN_KEY_CHECKS=0');
+
+        Bid::truncate();
+        File::truncate();
+        News::truncate();
+
+        Expense::truncate();
+        JournalTransaction::truncate();
+        Journal::truncate();
+
+        // Clear flights
+        DB::table('flight_fare')->truncate();
+        DB::table('flight_subfleet')->truncate();
+        FlightField::truncate();
+        FlightFieldValue::truncate();
+        Flight::truncate();
+        Subfleet::truncate();
+
+        // Clear permissions
+        //        DB::table('permission_role')->truncate();
+        //        DB::table('permission_user')->truncate();
+        //        DB::table('role_user')->truncate();
+        //        Role::truncate();
+
+        Airline::truncate();
+        Airport::truncate();
+        Acars::truncate();
+        Pirep::truncate();
+
+        UserAward::truncate();
+        User::truncate();
+
+        DB::statement('SET FOREIGN_KEY_CHECKS=1');
+    }
+}