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dm_1_query_resource.go
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dm_1_query_resource.go
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// 用于查询数据库中的资源
package orm
import (
"fmt"
"stgogo/comn/convert"
)
func DMGetTargetResourceById( id int64 ) ( tr *DMTargetResource, er error ) {
return DMGetParentResource( id )
}
// 获取某个子资源信息的父资源信息
func DMGetParentResource( parentId int64 ) (tr *DMTargetResource, er error) {
tr = &DMTargetResource{}
if has, e := engine_dm.Table("d_m_target_resource").ID(parentId).Get(tr); !has || e != nil {
er = e
return
}
return
}
// 如果不存在则返回nil
func DMGetTargetResourceByPath( path string ) ( tr *DMTargetResource, e error ) {
tr = &DMTargetResource{}
_, e = engine_dm.Table("d_m_target_resource").Where("path = \""+path+"\"" ).Get(tr)
return
}
func DMGetTargetResourcesByTags( tagIds []int64 ) ( []DMTargetResource, error ) {
var (
pis []DMTargetResource
findEx string
e error
)
findEx = ""
for i, id := range tagIds {
sid := convert.I64toa(id)
// tag交集
// id = 1
// tag_ids like '[1,%' or like '%,1,%' or like '%,1]'
findEx += fmt.Sprintf( "(tag_ids like '[%s,%%' or tag_ids like '%%,%s,%%' or tag_ids like '%%,%s]')", sid, sid, sid )
if len(tagIds) == 1 {
findEx += fmt.Sprintf( " or (tag_ids like '[%s]')", sid )
}
if i != len(tagIds) - 1 {
findEx += "and"
}
}
e = engine_dm.Table("d_m_target_resource").Where( findEx ).Find(&pis)
return pis, e
}
func DMGetBackupResourceById( id int64 ) ( bk *DMBackupResource, er error ) {
bk = &DMBackupResource{}
if has, e := engine_dm.Table("d_m_backup_resource").ID( id ).Get(bk); !has || e != nil {
er = e
return
}
return
}
func DMGetTargetResourceExById( id int64 ) ( ex *DMTargetResourceEx, er error ) {
ex = &DMTargetResourceEx{}
if has, e := engine_dm.Table("d_m_target_resource_ex").ID( id ).Get(ex); !has || e != nil {
er = e
return
}
return
}
func DMIsTargetResourceExist( path string ) ( exist bool, e error ) {
tr, e := DMGetTargetResourceByPath( path )
return tr.Id != 0, e
}
func DMGetAllMusicResources() ( dms []DMTargetResource, e error ) {
e = engine_dm.Table("d_m_target_resource").Where("child_genre = ?", "music").Find( &dms )
return
}