省市区数据

app/Models/Zone.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Zone extends Model
+{
+    public const TYPE_PROVINCE = 'province';
+    public const TYPE_CITY = 'city';
+    public const TYPE_AREA = 'area';
+
+    /**
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+        'parent_id',
+        'type',
+    ];
+}

database/migrations/2021_12_07_103828_create_zones_table.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;
+
+class CreateZonesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('zones', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('parent_id')->nullable()->comment('父级 ID');
+            $table->string('name')->comment('省/市/区 名称');
+            $table->enum('type', ['province', 'city', 'area'])->comment('类型');
+            $table->timestamps();
+        });
+
+        DB::unprepared(file_get_contents(base_path('database/sql/zones.sql')));
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('zones');
+    }
+}