新增教师：支持零业务引用档案安全删除与引用保护

RuoYi-Vue/ruoyi-admin/src/main/java/com/ruoyi/web/controller/train/TrainTeacherController.java

@@ -7,6 +7,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -127,6 +128,17 @@ public class TrainTeacherController extends BaseController
         return toAjax(trainTeacherService.updateTrainTeacher(trainTeacher));
     }
 
+    /**
+     * 删除教师信息 (DELETE /train/teacher/{tId})
+     */
+    @PreAuthorize("@ss.hasPermi('train:teacher:remove')")
+    @Log(title = "教师管理", businessType = BusinessType.DELETE)
+    @DeleteMapping("/{tId}")
+    public AjaxResult remove(@PathVariable("tId") String tId)
+    {
+        return toAjax(trainTeacherService.deleteTrainTeacherByTId(tId));
+    }
+
     private boolean isValidPhone(String phone)
     {
         return PHONE_PATTERN.matcher(phone).matches();