更新关联删除

app/adminapi/validate/land/LandValidate.php

@@ -16,6 +16,7 @@ namespace app\adminapi\validate\land;
 
 
 use app\common\validate\BaseValidate;
+use think\facade\Db;
 
 
 /**
@@ -118,7 +119,7 @@ class LandValidate extends BaseValidate
      */
     public function sceneDelete()
     {
-        return $this->only(['id']);
+        return $this->only(['id'])->append('id', 'require|checkLand');;
     }
 
 
@@ -133,4 +134,13 @@ class LandValidate extends BaseValidate
         return $this->only(['id']);
     }
 
+    public function checkLand($value, $rule, $data)
+    {
+        $landProduct = Db::name('land_product')->where('land_id', $value)->findOrEmpty();
+        if (!empty($landProduct)) {
+            return '存在关联产品，无法删除';
+        }
+        return true;
+    }
+
 }