diff --git a/go/main/config/common.go b/go/main/config/common.go
index a537665..ee6da4c 100644
--- a/go/main/config/common.go
+++ b/go/main/config/common.go
@@ -16,7 +16,7 @@ func InitApplication(applicationDir string) {
 	databasesDir = path.Join(applicationDir, "databases")
 	remoteDir = path.Join(applicationDir, "pictures", "remote")
 	downloadDir = path.Join(applicationDir, "download")
-	tmpDir = path.Join(applicationDir, "download")
+	tmpDir = path.Join(applicationDir, "tmp")
 	utils.Mkdir(databasesDir)
 	utils.Mkdir(remoteDir)
 	utils.Mkdir(downloadDir)
diff --git a/go/main/controller/client.go b/go/main/controller/client.go
index d63a159..3e21d7b 100644
--- a/go/main/controller/client.go
+++ b/go/main/controller/client.go
@@ -73,26 +73,12 @@ func changeProxyUrl(urlStr string) bool {
 	return true
 }
 
-func cacheable(key string, expire time.Duration, reload func() (interface{}, error)) (string, error) {
-	// CACHE
-	cache := network_cache.LoadCache(key, expire)
-	if cache != "" {
-		return cache, nil
-	}
-	// obj
-	obj, err := reload()
-	if err != nil {
-		return "", err
-	}
-	buff, err := json.Marshal(obj)
-	// push to cache
-	if err != nil {
-		return "", err
-	}
-	// return
-	cache = string(buff)
-	network_cache.SaveCache(key, cache)
-	return cache, nil
+func userProfile() (string, error) {
+	return serialize(client.UserProfile())
+}
+
+func punchIn() (string, error) {
+	return serialize(client.PunchIn())
 }
 
 func categories() (string, error) {
@@ -106,24 +92,6 @@ func categories() (string, error) {
 	if err != nil {
 		return "", err
 	}
-	var dbCategories []comic_center.Category
-	for _, c := range categories {
-		dbCategories = append(dbCategories, comic_center.Category{
-			ID:                c.Id,
-			Title:             c.Title,
-			Description:       c.Description,
-			IsWeb:             c.IsWeb,
-			Active:            c.Active,
-			Link:              c.Link,
-			ThumbOriginalName: c.Thumb.OriginalName,
-			ThumbFileServer:   c.Thumb.FileServer,
-			ThumbPath:         c.Thumb.Path,
-		})
-	}
-	err = comic_center.UpSetCategories(&dbCategories)
-	if err != nil {
-		return "", err
-	}
 	buff, _ := json.Marshal(&categories)
 	cache = string(buff)
 	network_cache.SaveCache(key, cache)
diff --git a/go/main/controller/common.go b/go/main/controller/common.go
index aa26d1e..5406c14 100644
--- a/go/main/controller/common.go
+++ b/go/main/controller/common.go
@@ -3,6 +3,8 @@ package controller
 import (
 	"encoding/json"
 	"pikapika/main/database/comic_center"
+	"pikapika/main/database/network_cache"
+	"time"
 )
 
 // EventNotify EventChannel 总线
@@ -41,6 +43,29 @@ func notifyExport(str string) {
 	onEvent("EXPORT", str)
 }
 
+// 缓存接口
+func cacheable(key string, expire time.Duration, reload func() (interface{}, error)) (string, error) {
+	// CACHE
+	cache := network_cache.LoadCache(key, expire)
+	if cache != "" {
+		return cache, nil
+	}
+	// obj
+	obj, err := reload()
+	if err != nil {
+		return "", err
+	}
+	buff, err := json.Marshal(obj)
+	// push to cache
+	if err != nil {
+		return "", err
+	}
+	// return
+	cache = string(buff)
+	network_cache.SaveCache(key, cache)
+	return cache, nil
+}
+
 // 将interface序列化成字符串, 方便与flutter通信
 func serialize(point interface{}, err error) (string, error) {
 	if err != nil {
diff --git a/go/main/controller/pikapika.go b/go/main/controller/pikapika.go
index 5e3d196..3f7611d 100644
--- a/go/main/controller/pikapika.go
+++ b/go/main/controller/pikapika.go
@@ -181,14 +181,6 @@ func clearToken() error {
 	return nil
 }
 
-func userProfile() (string, error) {
-	return serialize(client.UserProfile())
-}
-
-func punchIn() (string, error) {
-	return serialize(client.PunchIn())
-}
-
 func remoteImageData(params string) (string, error) {
 	var paramsStruct struct {
 		FileServer string `json:"fileServer"`
diff --git a/go/main/database/comic_center/center.go b/go/main/database/comic_center/center.go
index 989506c..afe1e6e 100644
--- a/go/main/database/comic_center/center.go
+++ b/go/main/database/comic_center/center.go
@@ -21,7 +21,6 @@ func InitDBConnect(databaseDir string) {
 	if err != nil {
 		panic("failed to connect database")
 	}
-	db.AutoMigrate(&Category{})
 	db.AutoMigrate(&ComicView{})
 	db.AutoMigrate(&RemoteImage{})
 	db.AutoMigrate(&ComicDownload{})
@@ -35,47 +34,6 @@ func Transaction(t func(tx *gorm.DB) error) error {
 	return db.Transaction(t)
 }
 
-func UpSetCategories(categories *[]Category) error {
-	mutex.Lock()
-	defer mutex.Unlock()
-	return db.Transaction(func(tx *gorm.DB) error {
-		var in []string
-		for _, c := range *categories {
-			if c.ID == "" {
-				continue
-			}
-			in = append(in, c.ID)
-			err := tx.Clauses(clause.OnConflict{
-				Columns: []clause.Column{{Name: "id"}},
-				DoUpdates: clause.AssignmentColumns([]string{
-					"updated_at",
-					"title",
-					"description",
-					"is_web",
-					"active",
-					"link",
-					"thumb_original_name",
-					"thumb_file_server",
-					"thumb_path",
-				}),
-			}).Create(&c).Error
-			if err != nil {
-				return err
-			}
-		}
-		err := tx.Unscoped().Model(&Category{}).Where(" id in ?", in).Update("deleted_at", gorm.DeletedAt{
-			Valid: false,
-		}).Error
-		if err != nil {
-			return err
-		}
-		return tx.Unscoped().Model(&Category{}).Where(" id not in ?", in).Update("deleted_at", gorm.DeletedAt{
-			Time:  time.Now(),
-			Valid: true,
-		}).Error
-	})
-}
-
 func NoLockActionViewComicUpdateInfoDB(view *ComicView, db *gorm.DB) error {
 	view.LastViewTime = time.Now()
 	return db.Clauses(clause.OnConflict{
diff --git a/go/main/database/comic_center/entities.go b/go/main/database/comic_center/entities.go
index 6c34fb4..f2f6a6b 100644
--- a/go/main/database/comic_center/entities.go
+++ b/go/main/database/comic_center/entities.go
@@ -5,21 +5,6 @@ import (
 	"time"
 )
 
-type Category struct {
-	ID                string `gorm:"primarykey"`
-	CreatedAt         time.Time
-	UpdatedAt         time.Time
-	DeletedAt         gorm.DeletedAt `gorm:"index"`
-	Title             string         `json:"title"`
-	Description       string         `json:"description"`
-	IsWeb             bool           `json:"isWeb"`
-	Active            bool           `json:"active"`
-	Link              string         `json:"link"`
-	ThumbOriginalName string
-	ThumbFileServer   string
-	ThumbPath         string
-}
-
 type RemoteImage struct {
 	gorm.Model
 	FileServer string `gorm:"index:uk_fp,unique" json:"fileServer"`