Migration to add supplier ID to components and consumables

Signed-off-by: snipe <snipe@snipe.net>

database/migrations/2023_04_12_135822_add_supplier_to_components.php

@@ -0,0 +1,48 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddSupplierToComponents extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('components', function (Blueprint $table) {
+            if (!Schema::hasColumn('components', 'supplier_id')) {
+                $table->integer('supplier_id')->after('user_id')->nullable()->default(null);
+            }
+        });
+
+        Schema::table('consumables', function (Blueprint $table) {
+            if (!Schema::hasColumn('consumables', 'supplier_id')) {
+                $table->integer('supplier_id')->after('user_id')->nullable()->default(null);
+            }
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('components', function (Blueprint $table) {
+            if (Schema::hasColumn('components', 'supplier_id')) {
+                $table->dropColumn('supplier_id');
+            }
+        });
+
+        Schema::table('consumables', function (Blueprint $table) {
+            if (Schema::hasColumn('consumables', 'supplier_id')) {
+                $table->dropColumn('supplier_id');
+            }
+        });
+    }
+}