Refine the rest structure.
This commit is contained in:
zicla
372
code/rest/matter_dao.go
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372
code/rest/matter_dao.go
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@ -0,0 +1,372 @@
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package rest
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import (
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"github.com/jinzhu/gorm"
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"github.com/nu7hatch/gouuid"
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"os"
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"tank/code/config"
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"tank/code/tool/builder"
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"tank/code/tool/result"
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"tank/code/tool/util"
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"time"
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)
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type MatterDao struct {
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BaseDao
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imageCacheDao *ImageCacheDao
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}
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//初始化方法
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func (this *MatterDao) Init() {
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this.BaseDao.Init()
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//手动装填本实例的Bean. 这里必须要用中间变量方可。
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b := CONTEXT.GetBean(this.imageCacheDao)
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if b, ok := b.(*ImageCacheDao); ok {
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this.imageCacheDao = b
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}
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}
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//按照Id查询文件
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func (this *MatterDao) FindByUuid(uuid string) *Matter {
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// Read
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var matter Matter
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db := CONTEXT.DB.Where(&Matter{Base: Base{Uuid: uuid}}).First(&matter)
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if db.Error != nil {
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if db.Error.Error() == result.DB_ERROR_NOT_FOUND {
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return nil
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} else {
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this.PanicError(db.Error)
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}
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}
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return &matter
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}
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//按照Id查询文件
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func (this *MatterDao) CheckByUuid(uuid string) *Matter {
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matter := this.FindByUuid(uuid)
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if matter == nil {
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panic(result.NotFound("%s 对应的matter不存在", uuid))
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}
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return matter
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}
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//按照uuid查找一个文件夹，可能返回root对应的matter.
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func (this *MatterDao) CheckWithRootByUuid(uuid string, user *User) *Matter {
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if uuid == "" {
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panic(result.BadRequest("uuid cannot be nil."))
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}
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var matter *Matter
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if uuid == MATTER_ROOT {
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if user == nil {
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panic(result.BadRequest("user cannot be nil."))
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}
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matter = NewRootMatter(user)
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} else {
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matter = this.CheckByUuid(uuid)
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}
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return matter
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}
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//按照path查找一个matter，可能返回root对应的matter.
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func (this *MatterDao) CheckWithRootByPath(path string, user *User) *Matter {
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var matter *Matter
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if user == nil {
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panic(result.BadRequest("user cannot be nil."))
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}
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//目标文件夹matter
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if path == "" || path == "/" {
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matter = NewRootMatter(user)
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} else {
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matter = this.checkByUserUuidAndPath(user.Uuid, path)
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}
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return matter
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}
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//按照名字查询文件夹
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func (this *MatterDao) FindByUserUuidAndPuuidAndNameAndDirTrue(userUuid string, puuid string, name string) *Matter {
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var wp = &builder.WherePair{}
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if userUuid != "" {
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wp = wp.And(&builder.WherePair{Query: "user_uuid = ?", Args: []interface{}{userUuid}})
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}
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if puuid != "" {
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wp = wp.And(&builder.WherePair{Query: "puuid = ?", Args: []interface{}{puuid}})
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}
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if name != "" {
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wp = wp.And(&builder.WherePair{Query: "name = ?", Args: []interface{}{name}})
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}
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wp = wp.And(&builder.WherePair{Query: "dir = ?", Args: []interface{}{1}})
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var matter = &Matter{}
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db := CONTEXT.DB.Model(&Matter{}).Where(wp.Query, wp.Args...).First(matter)
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if db.Error != nil {
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return nil
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}
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return matter
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}
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//按照id和userUuid来查找。找不到抛异常。
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func (this *MatterDao) CheckByUuidAndUserUuid(uuid string, userUuid string) *Matter {
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// Read
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var matter = &Matter{}
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db := CONTEXT.DB.Where(&Matter{Base: Base{Uuid: uuid}, UserUuid: userUuid}).First(matter)
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this.PanicError(db.Error)
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return matter
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}
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//统计某个用户的某个文件夹下的某个名字的文件(或文件夹)数量。
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func (this *MatterDao) CountByUserUuidAndPuuidAndDirAndName(userUuid string, puuid string, dir bool, name string) int {
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var matter Matter
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var count int
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var wp = &builder.WherePair{}
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if puuid != "" {
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wp = wp.And(&builder.WherePair{Query: "puuid = ?", Args: []interface{}{puuid}})
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}
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if userUuid != "" {
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wp = wp.And(&builder.WherePair{Query: "user_uuid = ?", Args: []interface{}{userUuid}})
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}
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if name != "" {
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wp = wp.And(&builder.WherePair{Query: "name = ?", Args: []interface{}{name}})
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}
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wp = wp.And(&builder.WherePair{Query: "dir = ?", Args: []interface{}{dir}})
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db := CONTEXT.DB.
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Model(&matter).
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Where(wp.Query, wp.Args...).
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Count(&count)
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this.PanicError(db.Error)
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return count
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}
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//获取某个用户的某个文件夹下的某个名字的文件(或文件夹)列表
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func (this *MatterDao) ListByUserUuidAndPuuidAndDirAndName(userUuid string, puuid string, dir bool, name string) []*Matter {
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var matters []*Matter
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db := CONTEXT.DB.
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Where(Matter{UserUuid: userUuid, Puuid: puuid, Dir: dir, Name: name}).
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Find(&matters)
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this.PanicError(db.Error)
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return matters
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}
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//获取某个文件夹下所有的文件和子文件
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func (this *MatterDao) List(puuid string, userUuid string, sortArray []builder.OrderPair) []*Matter {
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var matters []*Matter
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db := CONTEXT.DB.Where(Matter{UserUuid: userUuid, Puuid: puuid}).Order(this.GetSortString(sortArray)).Find(&matters)
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this.PanicError(db.Error)
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return matters
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}
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//获取某个文件夹下所有的文件和子文件
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func (this *MatterDao) Page(page int, pageSize int, puuid string, userUuid string, name string, dir string, alien string, extensions []string, sortArray []builder.OrderPair) *Pager {
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var wp = &builder.WherePair{}
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if puuid != "" {
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wp = wp.And(&builder.WherePair{Query: "puuid = ?", Args: []interface{}{puuid}})
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}
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if userUuid != "" {
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wp = wp.And(&builder.WherePair{Query: "user_uuid = ?", Args: []interface{}{userUuid}})
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}
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if name != "" {
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wp = wp.And(&builder.WherePair{Query: "name LIKE ?", Args: []interface{}{"%" + name + "%"}})
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}
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if dir == TRUE {
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wp = wp.And(&builder.WherePair{Query: "dir = ?", Args: []interface{}{1}})
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} else if dir == FALSE {
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wp = wp.And(&builder.WherePair{Query: "dir = ?", Args: []interface{}{0}})
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}
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if alien == TRUE {
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wp = wp.And(&builder.WherePair{Query: "alien = ?", Args: []interface{}{1}})
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} else if alien == FALSE {
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wp = wp.And(&builder.WherePair{Query: "alien = ?", Args: []interface{}{0}})
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}
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var conditionDB *gorm.DB
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if extensions != nil && len(extensions) > 0 {
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var orWp = &builder.WherePair{}
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for _, v := range extensions {
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orWp = orWp.Or(&builder.WherePair{Query: "name LIKE ?", Args: []interface{}{"%." + v}})
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}
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conditionDB = CONTEXT.DB.Model(&Matter{}).Where(wp.Query, wp.Args...).Where(orWp.Query, orWp.Args...)
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} else {
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conditionDB = CONTEXT.DB.Model(&Matter{}).Where(wp.Query, wp.Args...)
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}
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count := 0
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db := conditionDB.Count(&count)
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this.PanicError(db.Error)
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var matters []*Matter
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db = conditionDB.Order(this.GetSortString(sortArray)).Offset(page * pageSize).Limit(pageSize).Find(&matters)
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this.PanicError(db.Error)
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pager := NewPager(page, pageSize, count, matters)
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return pager
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}
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//创建
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func (this *MatterDao) Create(matter *Matter) *Matter {
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timeUUID, _ := uuid.NewV4()
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matter.Uuid = string(timeUUID.String())
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matter.CreateTime = time.Now()
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matter.UpdateTime = time.Now()
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matter.Sort = time.Now().UnixNano() / 1e6
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db := CONTEXT.DB.Create(matter)
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this.PanicError(db.Error)
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return matter
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}
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//修改一个文件
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func (this *MatterDao) Save(matter *Matter) *Matter {
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matter.UpdateTime = time.Now()
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db := CONTEXT.DB.Save(matter)
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this.PanicError(db.Error)
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return matter
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}
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//计数器加一
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func (this *MatterDao) TimesIncrement(matterUuid string) {
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db := CONTEXT.DB.Model(&Matter{}).Where("uuid = ?", matterUuid).Update("times", gorm.Expr("times + 1"))
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this.PanicError(db.Error)
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}
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//删除一个文件，数据库中删除，物理磁盘上删除。
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func (this *MatterDao) Delete(matter *Matter) {
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//目录的话递归删除。
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if matter.Dir {
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matters := this.List(matter.Uuid, matter.UserUuid, nil)
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for _, f := range matters {
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this.Delete(f)
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}
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//删除数据库中文件夹本身
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db := CONTEXT.DB.Delete(&matter)
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this.PanicError(db.Error)
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//从磁盘中删除该文件夹。
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util.DeleteEmptyDir(matter.AbsolutePath())
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} else {
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//删除数据库中文件记录
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db := CONTEXT.DB.Delete(&matter)
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this.PanicError(db.Error)
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//删除对应的缓存图片。
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this.imageCacheDao.DeleteByMatterUuid(matter.Uuid)
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//删除文件
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err := os.Remove(matter.AbsolutePath())
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if err != nil {
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this.logger.Error("删除磁盘上的文件出错 %s", err.Error())
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}
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//由于目录和物理结构一一对应，这里不能删除上级文件夹。
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}
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}
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//获取一段时间中，总的数量
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func (this *MatterDao) CountBetweenTime(startTime time.Time, endTime time.Time) int64 {
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var count int64
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db := CONTEXT.DB.Model(&Matter{}).Where("create_time >= ? AND create_time <= ?", startTime, endTime).Count(&count)
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this.PanicError(db.Error)
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return count
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}
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//获取一段时间中文件总大小
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func (this *MatterDao) SizeBetweenTime(startTime time.Time, endTime time.Time) int64 {
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var size int64
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db := CONTEXT.DB.Model(&Matter{}).Where("create_time >= ? AND create_time <= ?", startTime, endTime).Select("SUM(size)")
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this.PanicError(db.Error)
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row := db.Row()
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err := row.Scan(&size)
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this.PanicError(err)
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return size
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}
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//根据userUuid和path来查找
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func (this *MatterDao) findByUserUuidAndPath(userUuid string, path string) *Matter {
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var wp = &builder.WherePair{Query: "user_uuid = ? AND path = ?", Args: []interface{}{userUuid, path}}
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var matter = &Matter{}
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db := CONTEXT.DB.Model(&Matter{}).Where(wp.Query, wp.Args...).First(matter)
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if db.Error != nil {
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if db.Error.Error() == result.DB_ERROR_NOT_FOUND {
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return nil
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} else {
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this.PanicError(db.Error)
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}
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}
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return matter
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}
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//根据userUuid和path来查找
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func (this *MatterDao) checkByUserUuidAndPath(userUuid string, path string) *Matter {
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if path == "" {
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panic(result.BadRequest("path 不能为空"))
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}
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matter := this.findByUserUuidAndPath(userUuid, path)
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if matter == nil {
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panic(result.NotFound("path = %s 不存在", path))
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}
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return matter
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}
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//执行清理操作
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func (this *MatterDao) Cleanup() {
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this.logger.Info("[MatterDao]执行清理：清除数据库中所有Matter记录。删除磁盘中所有Matter文件。")
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db := CONTEXT.DB.Where("uuid is not null").Delete(Matter{})
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this.PanicError(db.Error)
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err := os.RemoveAll(config.CONFIG.MatterPath)
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this.PanicError(err)
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}
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