增加下级数

app/Models/User.php

@@ -5,6 +5,8 @@ namespace App\Models;
 use App\Models\Traits\HasAccount;
 use App\Models\Traits\HasArea;
 use DateTimeInterface;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\HasOne;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Support\Facades\DB;
@@ -78,18 +80,18 @@ class User extends Authenticatable
         return $date->format($this->dateFormat ?: 'Y-m-d H:i:s');
     }
 
-    protected function getNicknameAttribute()
+    protected function getNicknameAttribute(): string
     {
         return $this->info ? $this->info->nickname : '';
     }
 
-    public function info()
+    public function info(): HasOne
     {
         return $this->hasOne(UserInfo::class);
     }
 
     //渠道商配置
-    public function code()
+    public function code(): HasMany
     {
         return $this->hasMany(UserCode::class);
     }
@@ -99,6 +101,11 @@ class User extends Authenticatable
         return $this->hasOne(User::class, 'id', 'parent_id');
     }
 
+    public function children(): hasMany
+    {
+        return $this->hasMany(User::class, 'parent_id');
+    }
+
     /**
      * Notes: 密码加密
      * @Author: <C.Jason>