eta_forum_admin/services/help_doc_classify.go

package services

import "eta/eta_forum_admin/models/help_doc"

func helpDocClassifyHaveChild(allNode []*help_doc.HelpDocClassifyItems, node *help_doc.HelpDocClassifyItems) (childs []*help_doc.HelpDocClassifyItems, yes bool) {
	for _, v := range allNode {
		if v.ParentId == node.ClassifyId {
			childs = append(childs, v)
		}
	}
	if len(childs) > 0 {
		yes = true
	}
	return
}

func HelpDocClassifyItemsMakeTree(allNode []*help_doc.HelpDocClassifyItems, node *help_doc.HelpDocClassifyItems) {
	childs, _ := helpDocClassifyHaveChild(allNode, node) //判断节点是否有子节点并返回
	if len(childs) > 0 {
		node.Children = append(node.Children, childs[0:]...) //添加子节点
		for _, v := range childs {                           //查询子节点的子节点，并添加到子节点
			_, has := helpDocClassifyHaveChild(allNode, v)
			if has {
				HelpDocClassifyItemsMakeTree(allNode, v) //递归添加节点
			} else {
				v.Children = nil
			}
		}
	} else {
		node.Children = nil
	}
}