添加税费相关表

database/migrations/2022_07_21_073835_create_tax.php

@@ -0,0 +1,68 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateTax extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        // 区域组, 比如江浙沪, 中国西部
+        Schema::create('regions', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('description');
+            $table->timestamps();
+        });
+
+        // 区域组与国家省市县关联表
+        Schema::create('region_zones', function (Blueprint $table) {
+            $table->id();
+            $table->integer('region_id');
+            $table->integer('country_id');
+            $table->integer('zone_id');
+            $table->timestamps();
+        });
+
+
+        Schema::create('tax_classes', function (Blueprint $table) {
+            $table->id();
+            $table->string('title');
+            $table->string('description');
+            $table->timestamps();
+        });
+
+        Schema::create('tax_rates', function (Blueprint $table) {
+            $table->id();
+            $table->integer('region_id');
+            $table->string('name');
+            $table->string('rate');
+            $table->enum('type', ['percent', 'flat']);
+            $table->timestamps();
+        });
+
+        Schema::create('tax_rules', function (Blueprint $table) {
+            $table->id();
+            $table->integer('tax_class_id');
+            $table->integer('tax_rate_id');
+            $table->enum('based', ['store', 'payment', 'shipping']);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+
+    }
+}