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优化单页打印
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221
models/DocumentModel.go
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221
models/DocumentModel.go
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package models
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import (
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"time"
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"encoding/json"
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"fmt"
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"strconv"
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"github.com/astaxie/beego"
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"github.com/astaxie/beego/orm"
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"github.com/lifei6671/mindoc/cache"
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"github.com/lifei6671/mindoc/conf"
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)
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// Document struct.
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type Document struct {
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DocumentId int `orm:"pk;auto;unique;column(document_id)" json:"doc_id"`
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DocumentName string `orm:"column(document_name);size(500)" json:"doc_name"`
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// Identify 文档唯一标识
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Identify string `orm:"column(identify);size(100);index;null;default(null)" json:"identify"`
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BookId int `orm:"column(book_id);type(int);index" json:"book_id"`
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ParentId int `orm:"column(parent_id);type(int);index;default(0)" json:"parent_id"`
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OrderSort int `orm:"column(order_sort);default(0);type(int);index" json:"order_sort"`
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// Markdown markdown格式文档.
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Markdown string `orm:"column(markdown);type(text);null" json:"markdown"`
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// Release 发布后的Html格式内容.
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Release string `orm:"column(release);type(text);null" json:"release"`
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// Content 未发布的 Html 格式内容.
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Content string `orm:"column(content);type(text);null" json:"content"`
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CreateTime time.Time `orm:"column(create_time);type(datetime);auto_now_add" json:"create_time"`
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MemberId int `orm:"column(member_id);type(int)" json:"member_id"`
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ModifyTime time.Time `orm:"column(modify_time);type(datetime);auto_now" json:"modify_time"`
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ModifyAt int `orm:"column(modify_at);type(int)" json:"-"`
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Version int64 `orm:"type(bigint);column(version)" json:"version"`
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AttachList []*Attachment `orm:"-" json:"attach"`
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}
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// 多字段唯一键
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func (m *Document) TableUnique() [][]string {
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return [][]string{
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[]string{"book_id", "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 (m *Document) TableName() string {
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return "documents"
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}
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// TableEngine 获取数据使用的引擎.
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func (m *Document) TableEngine() string {
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return "INNODB"
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}
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func (m *Document) TableNameWithPrefix() string {
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return conf.GetDatabasePrefix() + m.TableName()
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}
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func NewDocument() *Document {
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return &Document{
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Version: time.Now().Unix(),
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}
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}
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//根据文档ID查询指定文档.
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func (m *Document) Find(id int) (*Document, error) {
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if id <= 0 {
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return m, ErrInvalidParameter
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}
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o := orm.NewOrm()
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err := o.QueryTable(m.TableNameWithPrefix()).Filter("document_id", id).One(m)
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if err == orm.ErrNoRows {
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return m, ErrDataNotExist
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}
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return m, nil
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}
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//插入和更新文档.
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func (m *Document) InsertOrUpdate(cols ...string) error {
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o := orm.NewOrm()
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var err error
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if m.DocumentId > 0 {
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_, err = o.Update(m, cols...)
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} else {
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if m.Identify == "" {
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book := NewBook()
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identify := "docs"
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if err := o.QueryTable(book.TableNameWithPrefix()).Filter("book_id",m.BookId).One(book,"identify");err == nil {
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identify = book.Identify
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}
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m.Identify = fmt.Sprintf("%s-%s",identify,strconv.FormatInt(time.Now().UnixNano(), 32))
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}
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if m.OrderSort == 0{
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sort,_ := o.QueryTable(m.TableNameWithPrefix()).Filter("book_id",m.BookId).Filter("parent_id",m.ParentId).Count()
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m.OrderSort = int(sort) + 1
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}
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_, err = o.Insert(m)
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NewBook().ResetDocumentNumber(m.BookId)
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}
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if err != nil {
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return err
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}
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return nil
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}
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//根据文档识别编号和项目id获取一篇文档
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func (m *Document) FindByIdentityFirst(identify string, bookId int) (*Document, error) {
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o := orm.NewOrm()
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err := o.QueryTable(m.TableNameWithPrefix()).Filter("book_id", bookId).Filter("identify", identify).One(m)
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return m, err
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}
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//递归删除一个文档.
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func (m *Document) RecursiveDocument(docId int) error {
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o := orm.NewOrm()
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if doc, err := m.Find(docId); err == nil {
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o.Delete(doc)
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NewDocumentHistory().Clear(doc.DocumentId)
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}
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var maps []orm.Params
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_, err := o.Raw("SELECT document_id FROM " + m.TableNameWithPrefix() + " WHERE parent_id=" + strconv.Itoa(docId)).Values(&maps)
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if err != nil {
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beego.Error("RecursiveDocument => ", err)
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return err
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}
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for _, item := range maps {
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if docId, ok := item["document_id"].(string); ok {
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id, _ := strconv.Atoi(docId)
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o.QueryTable(m.TableNameWithPrefix()).Filter("document_id", id).Delete()
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m.RecursiveDocument(id)
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}
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}
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return nil
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}
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//将文档写入缓存
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func (m *Document) PutToCache() {
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go func(m Document) {
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if v, err := json.Marshal(&m); err == nil {
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if m.Identify == "" {
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if err := cache.Put("Document.Id."+strconv.Itoa(m.DocumentId), v, time.Second*3600); err != nil {
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beego.Info("文档缓存失败:", m.DocumentId)
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}
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} else {
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if err := cache.Put(fmt.Sprintf("Document.BookId.%d.Identify.%s", m.BookId, m.Identify), v, time.Second*3600); err != nil {
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beego.Info("文档缓存失败:", m.DocumentId)
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}
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}
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}
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}(*m)
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}
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//清除缓存
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func (m *Document) RemoveCache() {
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go func(m Document) {
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cache.Put("Document.Id."+strconv.Itoa(m.DocumentId), m, time.Second*3600)
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if m.Identify != "" {
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cache.Put(fmt.Sprintf("Document.BookId.%d.Identify.%s", m.BookId, m.Identify), m, time.Second*3600)
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}
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}(*m)
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}
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//从缓存获取
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func (m *Document) FromCacheById(id int) (*Document, error) {
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b := cache.Get("Document.Id." + strconv.Itoa(id))
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if v, ok := b.([]byte); ok {
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if err := json.Unmarshal(v, m); err == nil {
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beego.Info("从缓存中获取文档信息成功", m.DocumentId)
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return m, nil
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}
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}
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defer func() {
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if m.DocumentId > 0 {
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m.PutToCache()
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}
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}()
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return m.Find(id)
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}
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//根据文档标识从缓存中查询文档
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func (m *Document) FromCacheByIdentify(identify string, bookId int) (*Document, error) {
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b := cache.Get(fmt.Sprintf("Document.BookId.%d.Identify.%s", bookId, identify))
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if v, ok := b.([]byte); ok {
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if err := json.Unmarshal(v, m); err == nil {
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beego.Info("从缓存中获取文档信息成功", m.DocumentId, identify)
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return m, nil
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}
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}
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defer func() {
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if m.DocumentId > 0 {
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m.PutToCache()
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}
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}()
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return m.FindByIdentityFirst(identify, bookId)
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}
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//根据项目ID查询文档列表.
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func (m *Document) FindListByBookId(bookId int) (docs []*Document, err error) {
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o := orm.NewOrm()
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_, err = o.QueryTable(m.TableNameWithPrefix()).Filter("book_id", bookId).OrderBy("order_sort").All(&docs)
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return
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}
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