mirror of https://github.com/mindoc-org/mindoc.git
405 lines
12 KiB
Go
405 lines
12 KiB
Go
package models
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import (
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"bytes"
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"fmt"
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"strings"
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"time"
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"github.com/PuerkitoBio/goquery"
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"github.com/beego/beego/v2/client/orm"
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"github.com/beego/beego/v2/core/logs"
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"github.com/beego/beego/v2/server/web"
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"github.com/mindoc-org/mindoc/cache"
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"github.com/mindoc-org/mindoc/conf"
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"github.com/mindoc-org/mindoc/utils"
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)
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// 博文表
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type Blog struct {
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BlogId int `orm:"pk;auto;unique;column(blog_id)" json:"blog_id"`
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//文章标题
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BlogTitle string `orm:"column(blog_title);size(500);description(文章标题)" json:"blog_title"`
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//文章标识
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BlogIdentify string `orm:"column(blog_identify);size(100);unique;description(文章标识)" json:"blog_identify"`
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//排序序号
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OrderIndex int `orm:"column(order_index);type(int);default(0);description(排序序号)" json:"order_index"`
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//所属用户
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MemberId int `orm:"column(member_id);type(int);default(0);index;description(所属用户)" json:"member_id"`
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//用户头像
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MemberAvatar string `orm:"-" json:"member_avatar"`
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//文章类型:0 普通文章/1 链接文章
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BlogType int `orm:"column(blog_type);type(int);default(0);description(文章类型: 0普通文章/1 链接文章)" json:"blog_type"`
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//链接到的项目中的文档ID
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DocumentId int `orm:"column(document_id);type(int);default(0);description(链接到的项目中的文档ID)" json:"document_id"`
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//文章的标识
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DocumentIdentify string `orm:"-" json:"document_identify"`
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//关联文档的项目标识
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BookIdentify string `orm:"-" json:"book_identify"`
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//关联文档的项目ID
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BookId int `orm:"-" json:"book_id"`
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//文章摘要
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BlogExcerpt string `orm:"column(blog_excerpt);size(1500);description(文章摘要)" json:"blog_excerpt"`
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//文章内容
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BlogContent string `orm:"column(blog_content);type(text);null;description(文章内容)" json:"blog_content"`
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//发布后的文章内容
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BlogRelease string `orm:"column(blog_release);type(text);null;description(发布后的文章内容)" json:"blog_release"`
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//文章当前的状态，枚举enum(’publish’,’draft’,’password’)值，publish为已 发表，draft为草稿，password 为私人内容(不会被公开) 。默认为publish。
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BlogStatus string `orm:"column(blog_status);size(100);default(publish);description(状态：publish为已发表-默认，draft:草稿，password :私人内容-不会被公开)" json:"blog_status"`
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//文章密码，varchar(100)值。文章编辑才可为文章设定一个密码，凭这个密码才能对文章进行重新强加或修改。
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Password string `orm:"column(password);size(100);description(文章密码)" json:"-"`
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//最后修改时间
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Modified time.Time `orm:"column(modify_time);type(datetime);auto_now;description(最后修改时间)" json:"modify_time"`
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//修改人id
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ModifyAt int `orm:"column(modify_at);type(int);description(修改人id)" json:"-"`
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ModifyRealName string `orm:"-" json:"modify_real_name"`
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//创建时间
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Created time.Time `orm:"column(create_time);type(datetime);auto_now_add;description(创建时间)" json:"create_time"`
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CreateName string `orm:"-" json:"create_name"`
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//版本号
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Version int64 `orm:"type(bigint);column(version);description(版本号)" json:"version"`
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//附件列表
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AttachList []*Attachment `orm:"-" json:"attach_list"`
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}
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// 多字段唯一键
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func (b *Blog) TableUnique() [][]string {
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return [][]string{
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{"blog_id", "blog_identify"},
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}
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}
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// TableName 获取对应数据库表名.
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func (b *Blog) TableName() string {
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return "blogs"
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}
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// TableEngine 获取数据使用的引擎.
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func (b *Blog) TableEngine() string {
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return "INNODB"
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}
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func (b *Blog) TableNameWithPrefix() string {
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return conf.GetDatabasePrefix() + b.TableName()
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}
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func NewBlog() *Blog {
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return &Blog{
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BlogStatus: "public",
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}
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}
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// 根据文章ID查询文章
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func (b *Blog) Find(blogId int) (*Blog, error) {
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o := orm.NewOrm()
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err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_id", blogId).One(b)
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if err != nil {
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logs.Error("查询文章时失败 -> ", err)
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return nil, err
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}
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return b.Link()
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}
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// 从缓存中读取文章
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func (b *Blog) FindFromCache(blogId int) (blog *Blog, err error) {
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key := fmt.Sprintf("blog-id-%d", blogId)
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var temp Blog
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err = cache.Get(key, &temp)
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if err == nil {
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b = &temp
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b.Link()
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logs.Debug("从缓存读取文章成功 ->", key)
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return b, nil
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} else {
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logs.Error("读取缓存失败 ->", err)
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}
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blog, err = b.Find(blogId)
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if err == nil {
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//默认一个小时
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if err := cache.Put(key, blog, time.Hour*1); err != nil {
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logs.Error("将文章存入缓存失败 ->", err)
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}
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}
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return
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}
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// 查找指定用户的指定文章
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func (b *Blog) FindByIdAndMemberId(blogId, memberId int) (*Blog, error) {
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o := orm.NewOrm()
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err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_id", blogId).Filter("member_id", memberId).One(b)
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if err != nil {
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logs.Error("查询文章时失败 -> ", err)
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return nil, err
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}
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return b.Link()
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}
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// 根据文章标识查询文章
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func (b *Blog) FindByIdentify(identify string) (*Blog, error) {
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o := orm.NewOrm()
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err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_identify", identify).One(b)
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if err != nil {
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logs.Error("查询文章时失败 -> ", err)
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return nil, err
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}
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return b, nil
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}
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// 获取指定文章的链接内容
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func (b *Blog) Link() (*Blog, error) {
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o := orm.NewOrm()
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//如果是链接文章，则需要从链接的项目中查找文章内容
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if b.BlogType == 1 && b.DocumentId > 0 {
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doc := NewDocument()
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if err := o.QueryTable(doc.TableNameWithPrefix()).Filter("document_id", b.DocumentId).One(doc, "release", "markdown", "identify", "book_id"); err != nil {
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logs.Error("查询文章链接对象时出错 -> ", err)
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} else {
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b.DocumentIdentify = doc.Identify
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b.BlogRelease = doc.Release
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//目前仅支持markdown文档进行链接
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b.BlogContent = doc.Markdown
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book := NewBook()
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if err := o.QueryTable(book.TableNameWithPrefix()).Filter("book_id", doc.BookId).One(book, "identify"); err != nil {
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logs.Error("查询关联文档的项目时出错 ->", err)
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} else {
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b.BookIdentify = book.Identify
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b.BookId = doc.BookId
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}
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//处理链接文档存在源文档修改时间的问题
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if content, err := goquery.NewDocumentFromReader(bytes.NewBufferString(b.BlogRelease)); err == nil {
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content.Find(".wiki-bottom").Remove()
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if html, err := content.Html(); err == nil {
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b.BlogRelease = html
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} else {
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logs.Error("处理文章失败 ->", err)
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}
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} else {
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logs.Error("处理文章失败 ->", err)
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}
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}
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}
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if b.ModifyAt > 0 {
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member := NewMember()
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if err := o.QueryTable(member.TableNameWithPrefix()).Filter("member_id", b.ModifyAt).One(member, "real_name", "account"); err == nil {
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if member.RealName != "" {
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b.ModifyRealName = member.RealName
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} else {
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b.ModifyRealName = member.Account
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}
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}
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}
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if b.MemberId > 0 {
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member := NewMember()
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if err := o.QueryTable(member.TableNameWithPrefix()).Filter("member_id", b.MemberId).One(member, "real_name", "account", "avatar"); err == nil {
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if member.RealName != "" {
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b.CreateName = member.RealName
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} else {
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b.CreateName = member.Account
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}
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b.MemberAvatar = member.Avatar
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}
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}
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return b, nil
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}
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// 判断指定的文章标识是否存在
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func (b *Blog) IsExist(identify string) bool {
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o := orm.NewOrm()
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return o.QueryTable(b.TableNameWithPrefix()).Filter("blog_identify", identify).Exist()
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}
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// 保存文章
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func (b *Blog) Save(cols ...string) error {
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o := orm.NewOrm()
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if b.OrderIndex <= 0 {
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blog := NewBlog()
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if err := o.QueryTable(blog.TableNameWithPrefix()).OrderBy("-blog_id").Limit(1).One(blog, "blog_id"); err == nil {
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b.OrderIndex = blog.BlogId + 1
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} else {
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c, _ := o.QueryTable(b.TableNameWithPrefix()).Count()
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b.OrderIndex = int(c) + 1
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}
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}
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var err error
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b.Processor().Version = time.Now().Unix()
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if b.BlogId > 0 {
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b.Modified = time.Now()
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_, err = o.Update(b, cols...)
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key := fmt.Sprintf("blog-id-%d", b.BlogId)
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_ = cache.Delete(key)
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} else {
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b.Created = time.Now()
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_, err = o.Insert(b)
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}
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return err
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}
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// 过滤文章的危险标签，处理文章外链以及图片.
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func (b *Blog) Processor() *Blog {
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b.BlogRelease = utils.SafetyProcessor(b.BlogRelease)
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//解析文档中非本站的链接，并设置为新窗口打开
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if content, err := goquery.NewDocumentFromReader(bytes.NewBufferString(b.BlogRelease)); err == nil {
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content.Find("a").Each(func(i int, contentSelection *goquery.Selection) {
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if src, ok := contentSelection.Attr("href"); ok {
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if strings.HasPrefix(src, "http://") || strings.HasPrefix(src, "https://") {
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//logs.Info(src,conf.BaseUrl,strings.HasPrefix(src,conf.BaseUrl))
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if conf.BaseUrl != "" && !strings.HasPrefix(src, conf.BaseUrl) {
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contentSelection.SetAttr("target", "_blank")
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if html, err := content.Html(); err == nil {
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b.BlogRelease = html
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}
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}
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}
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}
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})
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//设置图片为CDN地址
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if cdnimg, _ := web.AppConfig.String("cdnimg"); cdnimg != "" {
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content.Find("img").Each(func(i int, contentSelection *goquery.Selection) {
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if src, ok := contentSelection.Attr("src"); ok && strings.HasPrefix(src, "/uploads/") {
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contentSelection.SetAttr("src", utils.JoinURI(cdnimg, src))
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}
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})
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}
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}
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return b
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}
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// 分页查询文章列表
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func (b *Blog) FindToPager(pageIndex, pageSize int, memberId int, status string) (blogList []*Blog, totalCount int, err error) {
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o := orm.NewOrm()
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offset := (pageIndex - 1) * pageSize
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query := o.QueryTable(b.TableNameWithPrefix())
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if memberId > 0 {
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query = query.Filter("member_id", memberId)
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}
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if status != "" && status != "all" {
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query = query.Filter("blog_status", status)
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}
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if status == "" {
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query = query.Filter("blog_status__ne", "private")
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}
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_, err = query.OrderBy("-order_index", "-blog_id").Offset(offset).Limit(pageSize).All(&blogList)
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if err != nil {
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if err == orm.ErrNoRows {
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err = nil
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}
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logs.Error("获取文章列表时出错 ->", err)
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return
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}
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count, err := query.Count()
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if err != nil {
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logs.Error("获取文章数量时出错 ->", err)
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return nil, 0, err
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}
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totalCount = int(count)
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for _, blog := range blogList {
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if blog.BlogType == 1 {
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blog.Link()
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}
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}
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return
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}
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// 删除文章
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func (b *Blog) Delete(blogId int) error {
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// 删除文章缓存
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key := fmt.Sprintf("blog-id-%d", blogId)
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_ = cache.Delete(key)
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o := orm.NewOrm()
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_, err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_id", blogId).Delete()
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if err != nil {
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logs.Error("删除文章失败 ->", err)
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}
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return err
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}
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// 查询下一篇文章
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func (b *Blog) QueryNext(blogId int) (*Blog, error) {
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o := orm.NewOrm()
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blog := NewBlog()
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if err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_id", blogId).One(blog, "order_index"); err != nil {
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logs.Error("查询文章时出错 ->", err)
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return b, err
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}
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err := o.QueryTable(b.TableNameWithPrefix()).Filter("order_index__gte", blog.OrderIndex).Filter("blog_id__gt", blogId).OrderBy("order_index", "blog_id").One(blog)
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if err != nil && err != orm.ErrNoRows {
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logs.Error("查询文章时出错 ->", err)
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}
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return blog, err
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}
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// 查询下一篇文章
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func (b *Blog) QueryPrevious(blogId int) (*Blog, error) {
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o := orm.NewOrm()
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blog := NewBlog()
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if err := o.QueryTable(b.TableNameWithPrefix()).Filter("blog_id", blogId).One(blog, "order_index"); err != nil {
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logs.Error("查询文章时出错 ->", err)
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return b, err
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}
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err := o.QueryTable(b.TableNameWithPrefix()).Filter("order_index__lte", blog.OrderIndex).Filter("blog_id__lt", blogId).OrderBy("-order_index", "-blog_id").One(blog)
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if err != nil && err != orm.ErrNoRows {
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logs.Error("查询文章时出错 ->", err)
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}
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return blog, err
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}
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// 关联文章附件
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func (b *Blog) LinkAttach() (err error) {
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o := orm.NewOrm()
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var attachList []*Attachment
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//当不是关联文章时，用文章ID去查询附件
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if b.BlogType != 1 || b.DocumentId <= 0 {
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_, err = o.QueryTable(NewAttachment().TableNameWithPrefix()).Filter("document_id", b.BlogId).Filter("book_id", 0).All(&attachList)
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if err != nil && err != orm.ErrNoRows {
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logs.Error("查询文章附件时出错 ->", err)
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}
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} else {
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_, err = o.QueryTable(NewAttachment().TableNameWithPrefix()).Filter("document_id", b.DocumentId).Filter("book_id", b.BookId).All(&attachList)
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if err != nil && err != orm.ErrNoRows {
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logs.Error("查询文章附件时出错 ->", err)
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}
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}
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b.AttachList = attachList
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return
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}
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