Basic implementation of payment methods

app/Models/AvailablePaymentMethod.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Models;
+
+use App\Scopes\InstancedModel;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+
+/**
+ * @property int $id
+ * @property string $tenant
+ * @property string $slug
+ * @property string $name
+ * @property ?string $description
+ * @property bool $active
+ */
+class AvailablePaymentMethod extends InstancedModel
+{
+    protected $table = 'available_payment_methods';
+
+    protected $fillable = [
+        'tenant',
+        'slug',
+        'name',
+        'description',
+        'active',
+    ];
+
+    protected $casts = [
+        'active' => 'boolean',
+    ];
+
+    public function paymentMethod(): BelongsTo
+    {
+        return $this->belongsTo(PaymentMethod::class, 'slug', 'slug');
+    }
+
+    public function events(): BelongsToMany
+    {
+        return $this->belongsToMany(Event::class, 'event_payment_methods')->withTimestamps();
+    }
+}

app/Models/Event.php

@@ -153,6 +153,10 @@ class Event extends InstancedModel
         return $this->belongsToMany(EatingHabit::class, 'event_allowed_eating_habits', 'event_id', 'eating_habit_id');
     }
 
+    public function paymentMethods() : BelongsToMany {
+        return $this->belongsToMany(AvailablePaymentMethod::class, 'event_payment_methods', 'event_id', 'available_payment_method_id')->withTimestamps();
+    }
+
     public function resetContributingLocalGroups() {
         $this->localGroups()->detach();
         $this->save();
@@ -163,6 +167,11 @@ class Event extends InstancedModel
         $this->save();
     }
 
+    public function resetPaymentMethods() {
+        $this->paymentMethods()->detach();
+        $this->save();
+    }
+
     public function resetMangers() {
         $this->eventManagers()->detach();
         $this->save();

app/Models/EventParticipant.php

@@ -64,6 +64,7 @@ class EventParticipant extends InstancedModel
         'amount',
         'amount_paid',
         'payment_purpose',
+        'payment_method',
         'efz_status',
         'unregistered_at',
     ];
@@ -126,6 +127,11 @@ class EventParticipant extends InstancedModel
         return $this->belongsTo(EatingHabit::class, 'eating_habits', 'slug');
     }
 
+    public function paymentMethod()
+    {
+        return $this->belongsTo(\App\Models\PaymentMethod::class, 'payment_method', 'slug');
+    }
+
     public function firstAidPermission()
     {
         return $this->belongsTo(FirstAidPermission::class, 'first_aid_permission', 'slug');

app/Models/PaymentMethod.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use App\Scopes\CommonModel;
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
+
+/**
+ * @property string $id
+ * @property string $slug
+ */
+class PaymentMethod extends CommonModel
+{
+    use HasUuids;
+
+    public $incrementing = false;
+    protected $keyType = 'string';
+
+    public const string PAYMENT_ACCOUNT_TRANSACTION = 'PAYMENT_ACCOUNT_TRANSACTION';
+    public const string PAYMENT_NOT_DEFINED = 'PAYMENT_NOT_DEFINED';
+
+    public const array DEFAULTS = [
+        self::PAYMENT_ACCOUNT_TRANSACTION => ['name' => 'Überweisung auf Veranstaltungskonto', 'description' => null],
+        self::PAYMENT_NOT_DEFINED => ['name' => 'Sonstiges (Barzahlung, Zahlung vor Ort)', 'description' => null],
+    ];
+
+    protected $fillable = [
+        'slug',
+    ];
+}