/**
* 删除班级
*
* @param gradeVo
* @return
*/
@RequestMapping(value = "/maintainer/grade/deleteGrade", method = RequestMethod.POST)
@ResponseBody
public AjaxData deleteGrade(GradeVo gradeVo) {
List<Student> students = studentService.findByGradeId(gradeVo.getId());
if (students.isEmpty()) {
gradeService.deleteById(gradeVo.getId());
return new AjaxData().success().msg("删除成功!");
} else {
return new AjaxData().fail().msg("删除失败,该班级下已有学生!");
}
}
