前端完成

gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/controller/AppSkillController.java

@@ -120,9 +120,13 @@ public class AppSkillController extends BaseController
      * 删除标签信息
      */
     @Log(title = "标签信息", businessType = BusinessType.DELETE)
-	@DeleteMapping("/{ids}")
-    public AjaxResult remove(@PathVariable Long[] ids)
+	@DeleteMapping("/{id}")
+    public AjaxResult remove(@PathVariable Long id)
     {
-        return toAjax(appSkillService.deleteAppSkillByIds(ids));
+
+        if (appSkillService.hasChildById(id)) {
+            return AjaxResult.error(2001,"存在子集数据,不允许删除");
+        }
+        return toAjax(appSkillService.deleteAppSkillByIds(id));
     }
 }

gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/mapper/AppSkillMapper.java

@@ -58,4 +58,6 @@ public interface AppSkillMapper
      * @return 结果
      */
     public int deleteAppSkillByIds(Long[] ids);
+
+    int hasChildById(Long id);
 }

gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/IAppSkillService.java

@@ -50,7 +50,7 @@ public interface IAppSkillService
      * @param ids 需要删除的标签信息主键集合
      * @return 结果
      */
-    public int deleteAppSkillByIds(Long[] ids);
+    public int deleteAppSkillByIds(Long ids);
 
     /**
      * 删除标签信息信息
@@ -64,4 +64,6 @@ public interface IAppSkillService
 
 
     List<AppSkillVo> skillList(AppSkill appSkill);
+
+    boolean hasChildById(Long id);
 }

gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/impl/AppSkillServiceImpl.java

@@ -87,9 +87,9 @@ public class AppSkillServiceImpl implements IAppSkillService
      * @return 结果
      */
     @Override
-    public int deleteAppSkillByIds(Long[] ids)
+    public int deleteAppSkillByIds(Long id)
     {
-        return appSkillMapper.deleteAppSkillByIds(ids);
+        return appSkillMapper.deleteAppSkillById(id);
     }
 
     /**
@@ -136,4 +136,10 @@ public class AppSkillServiceImpl implements IAppSkillService
         }
         return appSkillVos;
     }
+
+    @Override
+    public boolean hasChildById(Long id) {
+        int i = appSkillMapper.hasChildById(id);
+        return i > 0;
+    }
 }

gan-modules/ruoyi-gan/src/main/resources/mapper/app/AppSkillMapper.xml

@@ -84,4 +84,8 @@
             #{id}
         </foreach>
     </delete>
+
+    <select id="hasChildById" resultType="int">
+        select count(1) from app_skill where parent_id = #{id}
+    </select>
 </mapper>