整理菜单更新的逻辑

guns-base-support/guns-system/src/main/java/cn/stylefeng/guns/sys/modular/menu/service/impl/SysMenuServiceImpl.java

@@ -222,12 +222,19 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
    @Override
    public void add(SysMenuParam sysMenuParam) {
        //校验参数
        // 校验参数
        checkParam(sysMenuParam, false);
        SysMenu sysMenu = new SysMenu();
        BeanUtil.copyProperties(sysMenuParam, sysMenu);
        this.fillPids(sysMenu);
        // 设置新的pid
        String newPids = createNewPids(sysMenuParam.getPid());
        sysMenu.setPids(newPids);
        // 设置启用状态
        sysMenu.setStatus(CommonStatusEnum.ENABLE.getCode());
        this.save(sysMenu);
    }
@@ -253,15 +260,16 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
        // 校验参数
        checkParam(sysMenuParam, true);
        // 获取修改的菜单的旧数据（库中的）
        SysMenu oldMenu = this.querySysMenu(sysMenuParam);
        // 本菜单旧的pids
        String oldPids = oldMenu.getPids();
        Long oldPid = oldMenu.getPid();
        String oldPids = oldMenu.getPids();
        // 填充新的pid和pids
        oldMenu.setPid(sysMenuParam.getPid());
        this.fillPids(oldMenu);
        // 生成新的pid和pids
        Long newPid = sysMenuParam.getPid();
        String newPids = this.createNewPids(sysMenuParam.getPid());
        // 是否更新子应用的标识
        boolean updateSubAppsFlag = false;
@@ -279,7 +287,7 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
        }
        // 父节点有变化
        if (!sysMenuParam.getPid().equals(oldPid)) {
        if (!newPid.equals(oldPid)) {
            updateSubPidsFlag = true;
        }
@@ -304,7 +312,7 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
                        // 子节点pids组成 = 当前菜单新pids + 当前菜单id + 子节点自己的pids后缀
                        String oldPcodesPrefix = oldPids + "[" + oldMenu.getId() + "],";
                        String oldPcodesSuffix = child.getPids().substring(oldPcodesPrefix.length());
                        String menuPcodes = oldMenu.getPids() + "[" + oldMenu.getId() + "]," + oldPcodesSuffix;
                        String menuPcodes = newPids + "[" + oldMenu.getId() + "]," + oldPcodesSuffix;
                        child.setPids(menuPcodes);
                    });
                }
@@ -316,6 +324,9 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
        // 拷贝参数到实体中
        BeanUtil.copyProperties(sysMenuParam, oldMenu);
        // 设置新的pids
        oldMenu.setPids(newPids);
        this.updateById(oldMenu);
    }
@@ -491,21 +502,25 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
    }
    /**
     * 填充父ids
     * 创建pids的值
     * <p>
     * 如果pid是0顶级节点，pids就是 [0],
     * <p>
     * 如果pid不是顶级节点，pids就是 pid菜单的pids + [pid] + ,
     *
     * @author xuyuxiang
     * @author xuyuxiang, stylefeng
     * @date 2020/3/26 11:28
     */
    private void fillPids(SysMenu sysMenu) {
        if (sysMenu.getPid().equals(0L)) {
            sysMenu.setPids(SymbolConstant.LEFT_SQUARE_BRACKETS + 0 + SymbolConstant.RIGHT_SQUARE_BRACKETS
                    + SymbolConstant.COMMA);
    private String createNewPids(Long pid) {
        if (pid.equals(0L)) {
            return SymbolConstant.LEFT_SQUARE_BRACKETS + 0 + SymbolConstant.RIGHT_SQUARE_BRACKETS
                    + SymbolConstant.COMMA;
        } else {
            //获取父菜单
            SysMenu parentMenu = this.getById(sysMenu.getPid());
            sysMenu.setPids(parentMenu.getPids()
                    + SymbolConstant.LEFT_SQUARE_BRACKETS + parentMenu.getId() + SymbolConstant.RIGHT_SQUARE_BRACKETS
                    + SymbolConstant.COMMA);
            SysMenu parentMenu = this.getById(pid);
            return parentMenu.getPids()
                    + SymbolConstant.LEFT_SQUARE_BRACKETS + pid + SymbolConstant.RIGHT_SQUARE_BRACKETS
                    + SymbolConstant.COMMA;
        }
    }