mindoc/models/AttachmentModel.go

155 lines
4.0 KiB
Go

//数据库模型.
package models
import (
"time"
"os"
"strings"
"github.com/astaxie/beego"
"github.com/astaxie/beego/orm"
"github.com/lifei6671/mindoc/conf"
"github.com/lifei6671/mindoc/utils/filetil"
)
// Attachment struct .
type Attachment struct {
AttachmentId int `orm:"column(attachment_id);pk;auto;unique" json:"attachment_id"`
BookId int `orm:"column(book_id);type(int)" json:"book_id"`
DocumentId int `orm:"column(document_id);type(int);null" json:"doc_id"`
FileName string `orm:"column(file_name);size(255)" json:"file_name"`
FilePath string `orm:"column(file_path);size(2000)" json:"file_path"`
FileSize float64 `orm:"column(file_size);type(float)" json:"file_size"`
HttpPath string `orm:"column(http_path);size(2000)" json:"http_path"`
FileExt string `orm:"column(file_ext);size(50)" json:"file_ext"`
CreateTime time.Time `orm:"type(datetime);column(create_time);auto_now_add" json:"create_time"`
CreateAt int `orm:"column(create_at);type(int)" json:"create_at"`
}
// TableName 获取对应数据库表名.
func (m *Attachment) TableName() string {
return "attachment"
}
// TableEngine 获取数据使用的引擎.
func (m *Attachment) TableEngine() string {
return "INNODB"
}
func (m *Attachment) TableNameWithPrefix() string {
return conf.GetDatabasePrefix() + m.TableName()
}
func NewAttachment() *Attachment {
return &Attachment{}
}
func (m *Attachment) Insert() error {
o := orm.NewOrm()
_, err := o.Insert(m)
return err
}
func (m *Attachment) Update() error {
o := orm.NewOrm()
_, err := o.Update(m)
return err
}
func (m *Attachment) Delete() error {
o := orm.NewOrm()
_, err := o.Delete(m)
if err == nil {
if err1 := os.Remove(m.FilePath); err1 != nil {
beego.Error(err1)
}
}
return err
}
func (m *Attachment) Find(id int) (*Attachment, error) {
if id <= 0 {
return m, ErrInvalidParameter
}
o := orm.NewOrm()
err := o.QueryTable(m.TableNameWithPrefix()).Filter("attachment_id", id).One(m)
return m, err
}
//查询指定文档的附件列表
func (m *Attachment) FindListByDocumentId(docId int) (attaches []*Attachment, err error) {
o := orm.NewOrm()
_, err = o.QueryTable(m.TableNameWithPrefix()).Filter("document_id", docId).Filter("book_id__gt",0).OrderBy("-attachment_id").All(&attaches)
return
}
//分页查询附件
func (m *Attachment) FindToPager(pageIndex, pageSize int) (attachList []*AttachmentResult, totalCount int, err error) {
o := orm.NewOrm()
total, err := o.QueryTable(m.TableNameWithPrefix()).Count()
if err != nil {
return nil, 0, err
}
totalCount = int(total)
offset := (pageIndex - 1) * pageSize
var list []*Attachment
_, err = o.QueryTable(m.TableNameWithPrefix()).OrderBy("-attachment_id").Offset(offset).Limit(pageSize).All(&list)
if err != nil {
if err == orm.ErrNoRows {
beego.Info("没有查到附件 ->",err)
err = nil
}
return
}
for _, item := range list {
attach := &AttachmentResult{}
attach.Attachment = *item
attach.FileShortSize = filetil.FormatBytes(int64(attach.FileSize))
//当项目ID为0标识是文章的附件
if item.BookId == 0 && item.DocumentId > 0 {
blog := NewBlog()
if err := o.QueryTable(blog.TableNameWithPrefix()).Filter("blog_id",item.DocumentId).One(blog,"blog_title");err == nil {
attach.BookName = blog.BlogTitle
}else{
attach.BookName = "[文章不存在]"
}
}else {
book := NewBook()
if e := o.QueryTable(book.TableNameWithPrefix()).Filter("book_id", item.BookId).One(book, "book_name"); e == nil {
attach.BookName = book.BookName
doc := NewDocument()
if e := o.QueryTable(doc.TableNameWithPrefix()).Filter("document_id", item.DocumentId).One(doc, "document_name"); e == nil {
attach.DocumentName = doc.DocumentName
} else {
attach.DocumentName = "[文档不存在]"
}
} else {
attach.BookName = "[项目不存在]"
}
}
attach.LocalHttpPath = strings.Replace(item.FilePath, "\\", "/", -1)
attachList = append(attachList, attach)
}
return
}