diff --git a/app/Models/WorkOrder/Reply.php b/app/Models/WorkOrder/Reply.php
index 43f6a5a..7da6cb6 100644
--- a/app/Models/WorkOrder/Reply.php
+++ b/app/Models/WorkOrder/Reply.php
@@ -71,14 +71,11 @@ protected static function boot()
     {
         parent::boot();
         static::creating(function ($model) {
-
             $model->is_pending = 1;
 
-
             // load work order
             $model->load(['workOrder']);
 
-
             throw_if($model->workOrder->status == 'pending' || $model->workOrder->status == 'error', CommonException::class, '工单状态不正确');
 
             // change work order status
diff --git a/app/Models/WorkOrder/WorkOrder.php b/app/Models/WorkOrder/WorkOrder.php
index 0f19b6c..897dafe 100644
--- a/app/Models/WorkOrder/WorkOrder.php
+++ b/app/Models/WorkOrder/WorkOrder.php
@@ -10,6 +10,8 @@
 use GeneaLabs\LaravelModelCaching\Traits\Cachable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 /**
  * App\Models\WorkOrder\WorkOrder
@@ -65,7 +67,7 @@
  */
 class WorkOrder extends Model
 {
-    use HasFactory, Cachable;
+    use Cachable;
 
     protected $table = 'work_orders';
 
@@ -122,6 +124,9 @@ protected static function boot()
         });
     }
 
+    /**
+     * @throws CommonException
+     */
     public function safeDelete(): bool
     {
         if ($this->status == 'pending') {
@@ -135,26 +140,26 @@ public function safeDelete(): bool
 
     // replies
 
-    public function user(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    public function user(): BelongsTo
     {
         return $this->belongsTo(User::class);
     }
 
     // host
 
-    public function replies(): \Illuminate\Database\Eloquent\Relations\HasMany
+    public function replies(): HasMany
     {
         return $this->hasMany(Reply::class);
     }
 
-    public function host(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    public function host(): BelongsTo
     {
         return $this->belongsTo(Host::class);
     }
 
     // scope
 
-    public function module(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    public function module(): BelongsTo
     {
         return $this->belongsTo(Module::class);
     }