add: migration

database/migrations/2021_12_06_114147_add_category_entity_id_to_entity_fields_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddCategoryEntityIdToEntityFieldsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('entity_fields', function (Blueprint $table) {
+            $table->unsignedInteger('category_entity_id')
+                ->nullable(false)->default(0)->comment('引用分类数据的模型ID');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('entity_fields', function (Blueprint $table) {
+            $table->dropColumn('category_entity_id');
+        });
+    }
+}