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- package _interface
- import (
- "errors"
- "eta/eta_mobile/models"
- "eta/eta_mobile/utils"
- "time"
- )
- type SingleNodeMoveInterface interface {
- GetNodeInfoById(nodeId int) (nodeInfo *models.NodeInfo, err error)
- UpdateNodeInfoSortByParentIdAndSource(parentNodeId, nodeId, prevNodeSort int, updateSortStr string, nodeType int) (err error)
- GetNodeMaxSort(parentId, nodeType int) (maxSort int, err error)
- GetFirstNodeInfoByParentId(parentId int) (nodeInfo *models.NodeInfo, err error)
- }
- // MoveSingleNode 移动节点
- func MoveSingleNode(sm SingleNodeMoveInterface, req models.SingleMoveNodeReq) (newNodeInfo *models.NodeInfo, updateCol []string, err error, errMsg string) {
- nodeId := req.NodeId
- parentNodeId := req.ParentNodeId
- prevNodeId := req.PrevNodeId
- nextNodeId := req.NextNodeId
- source := req.NodeType
- //首先确定移动的对象是分类还是指标
- //判断上一个节点是分类还是指标
- //判断下一个节点是分类还是指标
- //同时更新分类目录下的分类sort和指标sort
- //更新当前移动的分类或者指标sort
- var parentChartNodeInfo *models.NodeInfo
- if parentNodeId > 0 {
- parentChartNodeInfo, err = sm.GetNodeInfoById(parentNodeId)
- if err != nil {
- errMsg = "移动失败"
- err = errors.New("获取上级分类信息失败,Err:" + err.Error())
- return
- }
- }
- //如果有传入 上一个兄弟节点分类id
- var (
- //nodeInfo *models.NodeInfo
- prevNode *models.NodeInfo
- nextNode *models.NodeInfo
- prevSort int
- nextSort int
- )
- // 移动对象为分类
- nodeInfo, err := sm.GetNodeInfoById(nodeId)
- if err != nil {
- if err.Error() == utils.ErrNoRow() {
- errMsg = "当前分类不存在"
- err = errors.New("获取分类信息失败,Err:" + err.Error())
- return
- }
- errMsg = "移动失败"
- err = errors.New("获取分类信息失败,Err:" + err.Error())
- return
- }
- if prevNodeId > 0 {
- prevNode, err = sm.GetNodeInfoById(prevNodeId)
- if err != nil {
- errMsg = "移动失败"
- err = errors.New("获取上一个兄弟节点分类信息失败,Err:" + err.Error())
- return
- }
- prevSort = prevNode.Sort
- }
- if nextNodeId > 0 {
- //下一个兄弟节点
- nextNode, err = sm.GetNodeInfoById(nextNodeId)
- if err != nil {
- errMsg = "移动失败"
- err = errors.New("获取下一个兄弟节点分类信息失败,Err:" + err.Error())
- return
- }
- nextSort = nextNode.Sort
- }
- newNodeInfo, updateCol, err, errMsg = moveSingleNode(sm, parentChartNodeInfo, nodeInfo, prevNode, nextNode, parentNodeId, prevSort, nextSort, source)
- return
- }
- // moveSingleNode 移动节点
- func moveSingleNode(sm SingleNodeMoveInterface, parentChartNodeInfo, nodeInfo, prevNode, nextNode *models.NodeInfo, parentNodeId, prevSort, nextSort, source int) (newNodeInfo *models.NodeInfo, updateCol []string, err error, errMsg string) {
- updateCol = make([]string, 0)
- newNodeInfo = nodeInfo
- // 移动对象为分类, 判断分类是否存在
- oldParentId := nodeInfo.ParentId
- //oldLevel := nodeInfo.Level
- if oldParentId != parentNodeId {
- // todo 更新子分类对应的level
- }
- //判断上级id是否一致,如果不一致的话,那么需要移动该分类层级
- if nodeInfo.ParentId != parentNodeId && parentNodeId != 0 {
- if nodeInfo.Level != parentChartNodeInfo.Level+1 { //禁止层级调整
- errMsg = "不支持目录层级变更"
- err = errors.New("不支持目录层级变更")
- return
- }
- newNodeInfo.ParentId = parentChartNodeInfo.NodeId
- //nodeInfo.RootId = parentChartNodeInfo.RootId
- newNodeInfo.Level = parentChartNodeInfo.Level + 1
- newNodeInfo.ModifyTime = time.Now()
- //updateCol = append(updateCol, "ParentId", "RootId", "Level", "ModifyTime")
- updateCol = append(updateCol, "ParentId", "Level", "ModifyTime")
- } else if nodeInfo.ParentId != parentNodeId && parentNodeId == 0 {
- errMsg = "不支持目录层级变更"
- err = errors.New("不支持目录层级变更")
- return
- }
- if prevSort > 0 {
- //如果是移动在两个兄弟节点之间
- if nextSort > 0 {
- //下一个兄弟节点
- //如果上一个兄弟与下一个兄弟的排序权重是一致的,那么需要将下一个兄弟(以及下个兄弟的同样排序权重)的排序权重+2,自己变成上一个兄弟的排序权重+1
- if prevSort == nextSort || prevSort == nodeInfo.Sort {
- //变更兄弟节点的排序
- updateSortStr := `sort + 2`
- //变更分类
- if prevNode != nil {
- _ = sm.UpdateNodeInfoSortByParentIdAndSource(parentNodeId, prevNode.NodeId, prevNode.Sort, updateSortStr, source)
- } else {
- _ = sm.UpdateNodeInfoSortByParentIdAndSource(parentNodeId, 0, prevSort, updateSortStr, source)
- }
- } else {
- //如果下一个兄弟的排序权重正好是上个兄弟节点的下一层,那么需要再加一层了
- if nextSort-prevSort == 1 {
- //变更兄弟节点的排序
- updateSortStr := `sort + 1`
- //变更分类
- if prevNode != nil {
- _ = sm.UpdateNodeInfoSortByParentIdAndSource(parentNodeId, prevNode.NodeId, prevSort, updateSortStr, source)
- } else {
- _ = sm.UpdateNodeInfoSortByParentIdAndSource(parentNodeId, 0, prevSort, updateSortStr, source)
- }
- }
- }
- }
- newNodeInfo.Sort = prevSort + 1
- newNodeInfo.ModifyTime = time.Now()
- updateCol = append(updateCol, "Sort", "ModifyTime")
- } else if prevNode == nil && nextNode == nil && parentNodeId > 0 {
- //处理只拖动到目录里,默认放到目录底部的情况
- var maxSort int
- maxSort, err = sm.GetNodeMaxSort(parentNodeId, source)
- if err != nil {
- errMsg = "移动失败"
- err = errors.New("查询组内排序信息失败,Err:" + err.Error())
- return
- }
- newNodeInfo.Sort = maxSort + 1 //那就是排在组内最后一位
- newNodeInfo.ModifyTime = time.Now()
- updateCol = append(updateCol, "Sort", "ModifyTime")
- } else {
- // 拖动到父级分类的第一位
- firstClassify, tmpErr := sm.GetFirstNodeInfoByParentId(parentNodeId)
- if tmpErr != nil && tmpErr.Error() != utils.ErrNoRow() {
- errMsg = "移动失败"
- err = errors.New("获取获取当前父级分类下的排序第一条的分类信息失败,Err:" + tmpErr.Error())
- return
- }
- //如果该分类下存在其他分类,且第一个其他分类的排序等于0,那么需要调整排序
- if firstClassify != nil && firstClassify.Sort == 0 {
- updateSortStr := ` sort + 1 `
- _ = sm.UpdateNodeInfoSortByParentIdAndSource(parentNodeId, firstClassify.NodeId-1, 0, updateSortStr, source)
- }
- newNodeInfo.Sort = 0 //那就是排在第一位
- newNodeInfo.ModifyTime = time.Now()
- updateCol = append(updateCol, "Sort", "ModifyTime")
- }
- // todo 更新层级
- if len(updateCol) > 0 {
- /*err = nodeInfo.Update(updateCol)
- if err != nil {
- errMsg = "移动失败"
- err = errors.New("修改失败,Err:" + err.Error())
- return
- }*/
- // todo 更新对应分类的root_id和层级
- }
- return
- }
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