package cn.besteam.modules.system.service.impl;
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import cn.besteam.common.constant.CacheConstant;
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import cn.besteam.common.constant.CommonConstant;
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import cn.besteam.common.constant.ErrorCode;
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import cn.besteam.common.exception.BusinessException;
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import cn.besteam.common.util.oConvertUtils;
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import cn.besteam.modules.system.entity.SysPermission;
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import cn.besteam.modules.system.mapper.SysPermissionMapper;
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import cn.besteam.modules.system.service.ISysPermissionService;
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import cn.besteam.modules.system.vo.TreeModel;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.Date;
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import java.util.List;
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/**
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* @Description: 菜单权限
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* @author： besteam
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* @date： 2020-04-17
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* @version： V1.0
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*/
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@Service
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public class SysPermissionServiceImpl extends ServiceImpl<SysPermissionMapper, SysPermission> implements ISysPermissionService {
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@Override
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public List<TreeModel> queryListByParentId(Integer parentId) {
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return baseMapper.queryListByParentId(parentId);
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}
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/**
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* 真实删除
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*/
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@Override
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@Transactional
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@CacheEvict(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE, allEntries = true)
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public void deletePermission(Integer id) throws BusinessException {
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SysPermission sysPermission = this.getById(id);
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if (sysPermission == null) {
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throw new BusinessException(ErrorCode.ERR_500);
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}
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Integer pid = sysPermission.getParentId();
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if (oConvertUtils.isNotEmpty(pid)) {
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int count = this.count(new QueryWrapper<SysPermission>().lambda().eq(SysPermission::getParentId, pid));
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if (count == 1) {
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//若父节点无其他子节点，则该父节点是叶子节点
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baseMapper.setMenuLeaf(pid, 1);
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}
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}
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baseMapper.deleteById(id);
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// 该节点可能是子节点但也可能是其它节点的父节点,所以需要级联删除
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this.removeChildrenBy(sysPermission.getId());
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}
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/**
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* 根据父id删除其关联的子节点数据
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*
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* @return
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*/
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public void removeChildrenBy(Integer parentId) {
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LambdaQueryWrapper<SysPermission> query = new LambdaQueryWrapper<>();
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// 封装查询条件parentId为主键,
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query.eq(SysPermission::getParentId, parentId);
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// 查出该主键下的所有子级
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List<SysPermission> permissionList = this.list(query);
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if (permissionList != null && permissionList.size() > 0) {
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Integer id = null; // id
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int num = 0; // 查出的子级数量
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// 如果查出的集合不为空, 则先删除所有
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this.remove(query);
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// 再遍历刚才查出的集合, 根据每个对象,查找其是否仍有子级
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for (int i = 0, len = permissionList.size(); i < len; i++) {
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id = permissionList.get(i).getId();
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num = this.count(new LambdaQueryWrapper<SysPermission>().eq(SysPermission::getParentId, id));
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// 如果有, 则递归
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if (num > 0) {
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this.removeChildrenBy(id);
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}
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}
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}
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}
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/**
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* 逻辑删除
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*/
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@Override
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@CacheEvict(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE, allEntries = true)
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//@CacheEvict(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE,allEntries=true,condition="#sysPermission.menuType==2")
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public void deletePermissionLogical(Integer id) throws BusinessException {
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SysPermission sysPermission = this.getById(id);
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if (sysPermission == null) {
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throw new BusinessException(ErrorCode.ERR_500);
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}
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Integer pid = sysPermission.getParentId();
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int count = this.count(new QueryWrapper<SysPermission>().lambda().eq(SysPermission::getParentId, pid));
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if (count == 1) {
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//若父节点无其他子节点，则该父节点是叶子节点
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baseMapper.setMenuLeaf(pid, 1);
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}
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sysPermission.setDelFlag(1);
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this.updateById(sysPermission);
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}
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@Override
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@CacheEvict(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE, allEntries = true)
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public void addPermission(SysPermission sysPermission) throws BusinessException {
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//----------------------------------------------------------------------
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//判断是否是一级菜单，是的话清空父菜单
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if (CommonConstant.MENU_TYPE_0.equals(sysPermission.getMenuType())) {
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sysPermission.setParentId(null);
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}
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//----------------------------------------------------------------------
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Integer pid = sysPermission.getParentId();
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if (oConvertUtils.isNotEmpty(pid)) {
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//设置父节点不为叶子节点
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baseMapper.setMenuLeaf(pid, 0);
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}
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sysPermission.setCreateTime(new Date());
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sysPermission.setDelFlag(0);
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// sysPermission.setIsLeaf(1);
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sysPermission.setIsLeaf(true);
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this.save(sysPermission);
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}
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@Override
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@CacheEvict(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE, allEntries = true)
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public void editPermission(SysPermission sysPermission) throws BusinessException {
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SysPermission p = this.getById(sysPermission.getId());
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//TODO 该节点判断是否还有子节点
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if (p == null) {
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throw new BusinessException(ErrorCode.ERR_500);
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} else {
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sysPermission.setUpdateTime(new Date());
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//----------------------------------------------------------------------
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//Step1.判断是否是一级菜单，是的话清空父菜单ID
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if (CommonConstant.MENU_TYPE_0.equals(sysPermission.getMenuType())) {
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sysPermission.setParentId(null);
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}
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//Step2.判断菜单下级是否有菜单，无则设置为叶子节点
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int count = this.count(new QueryWrapper<SysPermission>().lambda().eq(SysPermission::getParentId, sysPermission.getId()));
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if (count == 0) {
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// sysPermission.setIsLeaf(1);
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sysPermission.setIsLeaf(true);
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}
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//----------------------------------------------------------------------
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this.updateById(sysPermission);
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//如果当前菜单的父菜单变了，则需要修改新父菜单和老父菜单的，叶子节点状态
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Integer pid = sysPermission.getParentId();
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if ((oConvertUtils.isNotEmpty(pid) && !pid.equals(p.getParentId())) || oConvertUtils.isEmpty(pid) && oConvertUtils.isNotEmpty(p.getParentId())) {
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//a.设置新的父菜单不为叶子节点
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baseMapper.setMenuLeaf(pid, 0);
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//b.判断老的菜单下是否还有其他子菜单，没有的话则设置为叶子节点
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int cc = this.count(new QueryWrapper<SysPermission>().lambda().eq(SysPermission::getParentId, p.getParentId()));
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if (cc == 0) {
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if (oConvertUtils.isNotEmpty(p.getParentId())) {
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baseMapper.setMenuLeaf(p.getParentId(), 1);
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}
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}
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}
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}
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}
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@Override
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public List<SysPermission> queryByUser(String username) {
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return baseMapper.queryByUser(username);
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}
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/**
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* 获取模糊匹配规则的数据权限URL
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*/
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@Override
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@Cacheable(value = CacheConstant.SYS_DATA_PERMISSIONS_CACHE)
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public List<String> queryPermissionUrlWithStar() {
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return this.baseMapper.queryPermissionUrlWithStar();
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}
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}
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