『博客开发日记-后台』之添加部门接口的实现

添加部门接口的实现

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添加部门接口的需求

检测部门名称与部门编号是否已经纯在

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

@PostMapping
@PreAuthorize("@ps.hasPermission('blog:dept:create')")
@SystemLog(businessName = "新增部门接口")
@ApiOperation(value = "新增部门接口", notes = "新增部门", response = String.class)
public ResponseResult addDept(@Valid @RequestBody AddDeptDto addDeptDto)
{
    return sysDeptService.addDept(addDeptDto);
}

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创建 AddDeptDto

/**
 * 添加部门请求DTO
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
@ApiModel(description = "添加部门请求对象")
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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添加常量

    /**
 *  父节点路径：Parent Node Path
 */
public static final String PARENT_NODE_PATH = "0";

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在 SysDeptServiceImpl 中实现功能

 //添加部门
@Override
public ResponseResult addDept(AddDeptDto addDeptDto)
{
    //检测部门名称与部门编号是否已经纯在
    LambdaQueryWrapper<SysDept> nameWrapper = new LambdaQueryWrapper<>();
    nameWrapper.eq(SysDept::getName, addDeptDto.getName());
    if (sysDeptService.count(nameWrapper) > 0) {
        return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "部门名称已存在，请勿重复添加！");
    }

    LambdaQueryWrapper<SysDept> codeWrapper = new LambdaQueryWrapper<>();
    codeWrapper.eq(SysDept::getCode, addDeptDto.getCode());
    if (sysDeptService.count(codeWrapper) > 0) {
        return ResponseResult.errorResult(AppHttpCodeEnum.SYSTEM_ERROR, "部门编号已存在，请勿重复添加！");
    }

    //添加部门
    SysDept sysDept = BeanCopyUtils.copyBean(addDeptDto, SysDept.class);
    Long parentId = addDeptDto.getParentId();
    sysDept.setParentId(parentId);

    //顶级部门设置 treePath
    if (Objects.equals(parentId, 0L)) {
        sysDept.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;
        }
        sysDept.setTreePath(parentTreePath + "," + parentDept.getId());
    }

    sysDeptService.save(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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