Merge pull request rrze-mmz#48 from rrze-mmz/44-enhance-database-perf…

…ormance-by-adding-indexes-in-migrations

Add indexes to migrations

app/Models/Channel.php

@@ -2,7 +2,10 @@
 
 namespace App\Models;
 
+use App\Enums\Role;
 use App\Models\Traits\RecordsActivity;
+use Exception;
+use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
@@ -26,4 +29,28 @@ public function owner(): BelongsTo
     {
         return $this->belongsTo(User::class);
     }
+
+    /*
+     * activates a channel for a specific moderator
+     */
+    /**
+     * @throws Exception
+     */
+    public function activate(User $user): Channel|AuthorizationException|Exception
+    {
+        if (! $user->hasRole(Role::MODERATOR)) {
+            throw new AuthorizationException('The user does not have a role: moderator');
+        }
+
+        if ($user->has('channels')) {
+            throw new Exception('User has already a channel');
+        }
+
+        return Channel::create([
+            'url_handle' => '@'.Str::before($user->email, '@'),
+            'name' => $user->getFullNameAttribute(),
+            'description' => '',
+            'banner_url' => null,
+        ]);
+    }
 }