[新增] first commit

app/Admin/Controllers/Ajax/AreaController.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Admin\Controllers\Ajax;
+
+use App\Models\Area;
+use DB;
+use Illuminate\Http\Request;
+
+class AreaController
+{
+
+    public function children(Request $request)
+    {
+        $code = $request->get('q');
+
+        return Area::whereHas('parent', function ($q) use ($code) {
+            $q->where('code', $code);
+        })->get(['code as id', DB::raw('name as text')]);
+    }
+
+}