Make Soft Deleted Relationships Nullable (#1749)

tests/Console/ModelsCommand/migrations/____soft_deletes_relations_table.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class SoftDeletesRelationsTable extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('soft_deletable_models', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->unsignedBigInteger('model_with_relations_id')->nullable();
+            $table->softDeletes();
+        });
+
+        Schema::create('non_soft_deletable_models', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->unsignedBigInteger('model_with_relations_id')->nullable();
+        });
+
+        Schema::create('models_with_relations', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->unsignedBigInteger('soft_deletable_model_id');
+            $table->unsignedBigInteger('non_soft_deletable_model_id');
+
+            $table->foreign('soft_deletable_model_id')
+                ->references('id')
+                ->on('soft_deletable_models');
+
+            $table->foreign('non_soft_deletable_model_id')
+                ->references('id')
+                ->on('non_soft_deletable_models');
+        });
+    }
+}