『博客开发日记-后台』之更新部门接口的实现

更新部门接口的实现

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更新部门接口的需求

检查部门是否存在

校验部门名称是否重复(排除自己)

校验部门编号是否重复(排除自己)

检查是否将部门状态从正常改为禁用并统计该部门下的成员数量

如果部门内有成员则不允许禁用

添加父节点路径：根节点为 0，子节点为 父节点路径,父节点ID

顶级部门设置 treePath

如果当前部门是顶级部门直接赋值 0

如果不是顶级部门就先查父部门是否存在

再取父部门的路径再用","拼接出当前部门完整的层级路径

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代码实现

DeptController

@PutMapping("/{id}")
@PreAuthorize("@ps.hasPermission('blog:dept:update')")
@SystemLog(businessName = "编辑部门接口")
@ApiOperation(value = "编辑部门接口", notes = "编辑部门", response = String.class)
@ApiImplicitParam(name = "id", value = "部门ID", dataType = "long", paramType = "path", required = true)
public ResponseResult updateDept(@PathVariable Long id, @Valid @RequestBody UpdateDeptDto updateDeptDto)
{
    return sysDeptService.updateDept(id, updateDeptDto);
}

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创建 UpdateDeptDto

/**
 * 更新部门请求DTO
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
@ApiModel(description = "更新部门请求对象")
public class AddDeptDto {

    @NotBlank(message = "部门名称不能为空")
    @ApiModelProperty(value = "部门名称", required = true, example = "技术部")
    private String name;

    @ApiModelProperty(value = "部门编码", example = "TECH")
    private String code;

    @NotNull(message = "上级部门不能为空")
    @ApiModelProperty(value = "父部门ID（顶级部门可传'0'）", required = true, example = "1")
    private Long parentId;

    @ApiModelProperty(value = "排序值", example = "0")
    private Integer sort;

    @NotBlank(message = "状态不能为空")
    @Pattern(regexp = "^[01]$", message = "状态只能为0或1")
    @ApiModelProperty(value = "状态（0-正常，1-禁用）", required = true, example = "0")
    private String status;
}

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在 SysDeptServiceImpl 中实现功能

//更新部门
@Override
@Transactional
public ResponseResult updateDept(Long id, UpdateDeptDto updateDeptDto)
{
    //检查部门是否存在
    SysDept oldDept = sysDeptService.getById(id);
    if (oldDept == null) {
        return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "该部门不存在！");
    }

    //校验部门名称是否重复(排除自己)
    LambdaQueryWrapper<SysDept> nameQueryWrapper = new LambdaQueryWrapper<>();
    nameQueryWrapper.eq(SysDept::getName, updateDeptDto.getName())
            .ne(SysDept::getId, id);
    long nameCount = sysDeptService.count(nameQueryWrapper);
    if (nameCount > 0) {
        return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "部门名称已存在，请修改后重试！");
    }

    //校验部门编号是否重复(排除自己)
    LambdaQueryWrapper<SysDept> codeQueryWrapper = new LambdaQueryWrapper<>();
    codeQueryWrapper.eq(SysDept::getCode, updateDeptDto.getCode())
            .ne(SysDept::getId, id);
    long codeCount = sysDeptService.count(codeQueryWrapper);
    if (codeCount > 0) {
        return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "部门编号已存在，请修改后重试！");
    }

    //检查是否将部门状态从正常改为禁用
    if (SystemConstants.STATUS_NORMAL.equals(oldDept.getStatus())
            && !SystemConstants.STATUS_NORMAL.equals(updateDeptDto.getStatus())) {
        //统计该部门下的成员数量
        LambdaQueryWrapper<SysUser> userQueryWrapper = new LambdaQueryWrapper<>();
        userQueryWrapper.eq(SysUser::getId, id);
        long userCount = sysUserService.count(userQueryWrapper);

        if (userCount > 0) {
            return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "该部门下存在成员，不可禁用！");
        }
    }

    //获取 父节点ID路径
    Long parentId = updateDeptDto.getParentId();
    oldDept.setParentId(parentId);

    //顶级部门设置 treePath
    if (Objects.equals(parentId, 0L)) {
        oldDept.setTreePath(SystemConstants.PARENT_NODE_PATH);//如果当前部门是顶级部门直接赋值 0
    } else {
        SysDept parentDept = sysDeptService.getById(parentId);//如果不是顶级部门就先查父部门是否存在
        if (parentDept == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "上级部门不存在！");
        }
        String parentTreePath = parentDept.getTreePath();//再取父部门的路径再用","拼接出当前部门完整的层级路径
        if (parentTreePath == null || parentTreePath.isBlank()) {
            parentTreePath = SystemConstants.PARENT_NODE_PATH;
        }
        oldDept.setTreePath(parentTreePath + "," + parentDept.getId());
    }

    //更新部门信息
    SysDept sysDept = BeanCopyUtils.copyBean(updateDeptDto, SysDept.class);
    sysDept.setId(id);
    sysDeptService.updateById(sysDept);

    return ResponseResult.okResult();
}

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PS:该系列只做为作者学习开发项目做的笔记用

不一定符合读者来学习，仅供参考

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预告

后续会记录博客的开发过程

每次学习会做一份笔记来进行发表

“一花一世界，一叶一菩提”

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