Configurations for payment modules

database/migrations/2026_07_29_140010_add_configuration_to_available_payment_methods.php

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+<?php
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('available_payment_methods', function (Blueprint $table) {
+            $table->json('configuration')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('available_payment_methods', function (Blueprint $table) {
+            $table->dropColumn('configuration');
+        });
+    }
+};

database/migrations/2026_07_29_140020_add_configuration_to_event_payment_methods.php

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+<?php
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->json('configuration')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->dropColumn('configuration');
+        });
+    }
+};

database/migrations/2026_07_29_140030_fix_event_payment_methods_slug.php

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+<?php
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * Reparatur-Migration für eine Drift in event_payment_methods:
+ *
+ * Eine frühere Version von 2026_07_28_140020_create_event_payment_methods hatte die Verknüpfung
+ * über available_payment_method_id (FK auf available_payment_methods.id) modelliert. Die Migration
+ * wurde später in-place auf slug (FK auf payment_methods.slug) umgestellt -- Systeme, die noch die
+ * alte Version ausgeführt haben, tragen daher available_payment_method_id statt slug.
+ *
+ * Diese Migration konvertiert solche Systeme verlustfrei auf slug. Auf Systemen, die bereits die
+ * korrekte slug-Struktur haben (frische Installationen), ist sie ein No-Op.
+ */
+return new class extends Migration {
+    public function up(): void
+    {
+        // Frisch / bereits korrekt -> nichts zu tun.
+        if (!Schema::hasColumn('event_payment_methods', 'available_payment_method_id')
+            || Schema::hasColumn('event_payment_methods', 'slug')) {
+            return;
+        }
+
+        // 1. slug zunächst nullable anlegen (für den Backfill).
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->string('slug')->nullable()->after('event_id');
+        });
+
+        // 2. slug aus der verknüpften available_payment_methods-Zeile übernehmen.
+        DB::statement('
+            UPDATE event_payment_methods epm
+            JOIN available_payment_methods apm ON apm.id = epm.available_payment_method_id
+            SET epm.slug = apm.slug
+        ');
+
+        // 3. Alte Spalte samt FK entfernen.
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->dropForeign(['available_payment_method_id']);
+            $table->dropColumn('available_payment_method_id');
+        });
+
+        // 4. slug final absichern: NOT NULL, Unique (event_id, slug), FK auf payment_methods.slug.
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->string('slug')->nullable(false)->change();
+            $table->unique(['event_id', 'slug']);
+            $table->foreign('slug')->references('slug')->on('payment_methods')->restrictOnDelete()->cascadeOnUpdate();
+        });
+    }
+
+    public function down(): void
+    {
+        // Nur umkehren, wenn tatsächlich die slug-Struktur vorliegt.
+        if (!Schema::hasColumn('event_payment_methods', 'slug')
+            || Schema::hasColumn('event_payment_methods', 'available_payment_method_id')) {
+            return;
+        }
+
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->unsignedBigInteger('available_payment_method_id')->nullable()->after('event_id');
+        });
+
+        // Backfill über den Tenant des Events, da available_payment_methods pro (tenant, slug) eindeutig ist.
+        DB::statement('
+            UPDATE event_payment_methods epm
+            JOIN events e ON e.id = epm.event_id
+            JOIN available_payment_methods apm ON apm.slug = epm.slug AND apm.tenant = e.tenant
+            SET epm.available_payment_method_id = apm.id
+        ');
+
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->dropForeign(['slug']);
+            $table->dropUnique(['event_id', 'slug']);
+            $table->dropColumn('slug');
+        });
+
+        Schema::table('event_payment_methods', function (Blueprint $table) {
+            $table->unsignedBigInteger('available_payment_method_id')->nullable(false)->change();
+            $table->foreign('available_payment_method_id')->references('id')->on('available_payment_methods')->cascadeOnUpdate();
+        });
+    }
+};