Backend: Improve labels, keywords and caching

Signed-off-by: Michael Mayer <michael@liquidbytes.net>

Makefile

@@ -72,6 +72,9 @@ build-js:
 build-go:
 	rm -f $(BINARY_NAME)
 	scripts/build.sh debug $(BINARY_NAME)
+build-race:
+	rm -f $(BINARY_NAME)
+	scripts/build.sh race $(BINARY_NAME)
 build-static:
 	rm -f $(BINARY_NAME)
 	scripts/build.sh static $(BINARY_NAME)

internal/api/folder.go

@@ -43,7 +43,7 @@ func GetFolders(router *gin.RouterGroup, conf *config.Config, urlPath, rootName,
 		if cached {
 			if cacheData, ok := gc.Get(cacheKey); ok {
 				log.Debugf("cache hit for %s [%s]", cacheKey, time.Since(start))
-				c.JSON(http.StatusOK, cacheData.(FoldersResponse))
+				c.JSON(http.StatusOK, cacheData.(*FoldersResponse))
 				return
 			}
 		}
@@ -65,7 +65,7 @@ func GetFolders(router *gin.RouterGroup, conf *config.Config, urlPath, rootName,
 		}
 
 		if cached {
-			gc.Set(cacheKey, resp, time.Minute*5)
+			gc.Set(cacheKey, &resp, time.Minute*5)
 			log.Debugf("cached %s [%s]", cacheKey, time.Since(start))
 		}
 

internal/api/photo_label.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 
 	"github.com/gin-gonic/gin"
+	"github.com/photoprism/photoprism/internal/classify"
 	"github.com/photoprism/photoprism/internal/config"
 	"github.com/photoprism/photoprism/internal/entity"
 	"github.com/photoprism/photoprism/internal/event"
@@ -114,11 +115,11 @@ func RemovePhotoLabel(router *gin.RouterGroup, conf *config.Config) {
 			return
 		}
 
-		if label.LabelSrc == entity.SrcManual {
+		if label.LabelSrc == classify.SrcManual || label.LabelSrc == classify.SrcKeyword{
-			entity.Db().Delete(&label)
+			logError("label", entity.Db().Delete(&label).Error)
 		} else {
 			label.Uncertainty = 100
-			entity.Db().Save(&label)
+			logError("label", entity.Db().Save(&label).Error)
 		}
 
 		p, err := query.PhotoPreloadByUID(c.Param("uid"))
@@ -128,6 +129,8 @@ func RemovePhotoLabel(router *gin.RouterGroup, conf *config.Config) {
 			return
 		}
 
+		logError("label", p.RemoveKeyword(label.Label.LabelName))
+
 		if err := p.Save(); err != nil {
 			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": txt.UcFirst(err.Error())})
 			return

internal/api/photo_thumbnail.go

@@ -51,7 +51,7 @@ func GetThumbnail(router *gin.RouterGroup, conf *config.Config) {
 		if cacheData, ok := gc.Get(cacheKey); ok {
 			log.Debugf("cache hit for %s [%s]", cacheKey, time.Since(start))
 
-			cached := cacheData.(ThumbCache)
+			cached := cacheData.(*ThumbCache)
 
 			if !fs.FileExists(cached.FileName) {
 				log.Errorf("thumbnail: %s not found", fileHash)
@@ -137,7 +137,7 @@ func GetThumbnail(router *gin.RouterGroup, conf *config.Config) {
 		}
 
 		// Cache thumbnail filename.
-		gc.Set(cacheKey, ThumbCache{thumbnail, f.ShareFileName()}, time.Hour*24)
+		gc.Set(cacheKey, &ThumbCache{thumbnail, f.ShareFileName()}, time.Hour*24)
 		log.Debugf("cached %s [%s]", cacheKey, time.Since(start))
 
 		if c.Query("download") != "" {

internal/classify/const.go

@@ -6,4 +6,5 @@ const (
 	SrcManual   = "manual"
 	SrcLocation = "location"
 	SrcImage    = "image"
+	SrcKeyword  = "keyword"
 )

internal/classify/labels.go

@@ -13,9 +13,9 @@ type Labels []Label
 func (l Labels) Len() int      { return len(l) }
 func (l Labels) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
 func (l Labels) Less(i, j int) bool {
-	if l[i].Uncertainty >= 100 {
+	if l[i].Uncertainty >= 100 || l[i].Source == SrcKeyword {
 		return false
-	} else if l[j].Uncertainty >= 100 {
+	} else if l[j].Uncertainty >= 100 || l[j].Source == SrcKeyword {
 		return true
 	} else if l[i].Priority == l[j].Priority {
 		return l[i].Uncertainty < l[j].Uncertainty
@@ -36,7 +36,7 @@ func (l Labels) AppendLabel(label Label) Labels {
 // Keywords returns all keywords contains in Labels and their categories
 func (l Labels) Keywords() (result []string) {
 	for _, label := range l {
-		if label.Uncertainty >= 100 {
+		if label.Uncertainty >= 100 || label.Source == SrcKeyword {
 			continue
 		}
 

internal/entity/label.go

@@ -94,6 +94,19 @@ func FirstOrCreateLabel(m *Label) *Label {
 	return m
 }
 
+// FindLabel returns an existing row if exists.
+func FindLabel(s string) *Label {
+	labelSlug := slug.Make(txt.Clip(s, txt.ClipSlug))
+
+	result := Label{}
+
+	if err := Db().Where("label_slug = ? OR custom_slug = ?", labelSlug, labelSlug).First(&result).Error; err == nil {
+		return &result
+	}
+
+	return nil
+}
+
 // AfterCreate sets the New column used for database callback
 func (m *Label) AfterCreate(scope *gorm.Scope) error {
 	m.New = true

internal/entity/photo.go

@@ -102,12 +102,16 @@ func SavePhotoForm(model Photo, form form.Photo, geoApi string) error {
 		model.Details.Keywords = strings.Join(txt.UniqueWords(w), ", ")
 	}
 
+	if err := model.SyncKeywordLabels(); err != nil {
+		log.Errorf("photo: %s", err)
+	}
+
 	if err := model.UpdateTitle(model.ClassifyLabels()); err != nil {
 		log.Warn(err)
 	}
 
 	if err := model.IndexKeywords(); err != nil {
-		log.Error(err)
+		log.Errorf("photo: %s", err.Error())
 	}
 
 	edited := time.Now().UTC()
@@ -146,7 +150,7 @@ func (m *Photo) Save() error {
 	}
 
 	if err := m.IndexKeywords(); err != nil {
-		log.Error(err)
+		log.Errorf("photo: %s", err.Error())
 	}
 
 	m.PhotoQuality = m.QualityScore()
@@ -216,10 +220,39 @@ func (m *Photo) BeforeSave(scope *gorm.Scope) error {
 	return nil
 }
 
+// RemoveKeyword removes a word from photo keywords.
+func (m *Photo) RemoveKeyword(w string) error {
+	if !m.DetailsLoaded() {
+		return fmt.Errorf("can't remove keyword, details not loaded")
+	}
+
+	words := txt.RemoveFromWords(txt.Words(m.Details.Keywords), w)
+
+	m.Details.Keywords = strings.Join(words, ", ")
+
+	return nil
+}
+
+// SyncKeywordLabels maintains the label / photo relationship for existing labels and keywords.
+func (m *Photo) SyncKeywordLabels() error {
+	keywords := txt.UniqueKeywords(m.Details.Keywords)
+
+	var labelIds []uint
+
+	for _, w := range keywords {
+		if label := FindLabel(w); label != nil {
+			labelIds = append(labelIds, label.ID)
+			FirstOrCreatePhotoLabel(NewPhotoLabel(m.ID, label.ID, 5, classify.SrcKeyword))
+		}
+	}
+
+	return Db().Where("label_src = ? AND photo_id = ? AND label_id NOT IN (?)", classify.SrcKeyword, m.ID, labelIds).Delete(&PhotoLabel{}).Error
+}
+
 // IndexKeywords adds given keywords to the photo entry
 func (m *Photo) IndexKeywords() error {
 	if !m.DetailsLoaded() {
-		return fmt.Errorf("photo: can't index keywords, details not loaded for %s", m.PhotoUID)
+		return fmt.Errorf("can't index keywords, details not loaded")
 	}
 
 	db := Db()
@@ -240,7 +273,7 @@ func (m *Photo) IndexKeywords() error {
 		kw := FirstOrCreateKeyword(NewKeyword(w))
 
 		if kw == nil {
-			log.Errorf("photo: index keyword should not be nil - bug?")
+			log.Errorf("index keyword should not be nil - bug?")
 			continue
 		}
 

internal/entity/photo_maintenance.go

@@ -59,7 +59,7 @@ func (m *Photo) Maintain() error {
 	}
 
 	if err := m.IndexKeywords(); err != nil {
-		log.Error(err)
+		log.Errorf("photo: %s", err.Error())
 	}
 
 	m.PhotoQuality = m.QualityScore()

internal/maps/places/location.go

@@ -54,9 +54,9 @@ func FindLocation(id string) (result Location, err error) {
 
 	if hit, ok := cache.Get(id); ok {
 		log.Debugf("api: cache hit for lat %f, lng %f (%s)", lat, lng, ApiName)
-		result = hit.(Location)
+		cached := hit.(*Location)
-		result.Cached = true
+		cached.Cached = true
-		return result, nil
+		return *cached, nil
 	}
 
 	url := fmt.Sprintf(ReverseLookupURL, id)
@@ -101,7 +101,7 @@ func FindLocation(id string) (result Location, err error) {
 		return result, fmt.Errorf("api: no result for %s (%s)", id, ApiName)
 	}
 
-	cache.Set(id, result, gc.DefaultExpiration)
+	cache.Set(id, &result, gc.DefaultExpiration)
 
 	result.Cached = false
 

internal/photoprism/convert.go

@@ -8,7 +8,6 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"sync"
 
 	"github.com/karrick/godirwalk"
@@ -249,10 +248,6 @@ func (c *Convert) ToJpeg(image *MediaFile, hidden bool) (*MediaFile, error) {
 		return nil, err
 	}
 
-	// Unclear if this is really necessary here, but safe is safe.
-	runtime.LockOSThread()
-	defer runtime.UnlockOSThread()
-
 	if useMutex {
 		// Make sure only one command is executed at a time.
 		// See https://photo.stackexchange.com/questions/105969/darktable-cli-fails-because-of-locked-database-file

internal/photoprism/index_mediafile.go

@@ -462,8 +462,12 @@ func (ind *Index) MediaFile(m *MediaFile, o IndexOptions, originalName string) (
 			return result
 		}
 
+		if err := photo.SyncKeywordLabels(); err != nil {
+			log.Errorf("index: %s for %s", err, quotedName)
+		}
+
 		if err := photo.IndexKeywords(); err != nil {
-			log.Errorf("%s for %s", err, quotedName)
+			log.Errorf("index: %s for %s", err, quotedName)
 		}
 	} else {
 		if photo.PhotoQuality >= 0 {

internal/photoprism/mediafile.go

@@ -636,6 +636,10 @@ func (m *MediaFile) decodeDimensions() error {
 	if m.IsJpeg() {
 		file, err := os.Open(m.FileName())
 
+		if err != nil || file == nil {
+			return err
+		}
+
 		defer file.Close()
 
 		size, _, err := image.DecodeConfig(file)

internal/query/geo.go

@@ -33,7 +33,8 @@ func Geo(f form.GeoSearch) (results GeoResults, err error) {
 		Joins(`JOIN files ON files.photo_id = photos.id AND 
 		files.file_missing = 0 AND files.file_primary AND files.deleted_at IS NULL`).
 		Where("photos.deleted_at IS NULL").
-		Where("photos.photo_lat <> 0")
+		Where("photos.photo_lat <> 0").
+		Group("photos.id, files.id")
 
 	f.Query = txt.Clip(f.Query, txt.ClipKeyword)
 

internal/query/photo_search.go

@@ -38,7 +38,8 @@ func PhotoSearch(f form.PhotoSearch) (results PhotoResults, count int, err error
 		Joins("JOIN cameras ON photos.camera_id = cameras.id").
 		Joins("JOIN lenses ON photos.lens_id = lenses.id").
 		Joins("JOIN places ON photos.place_uid = places.place_uid").
-		Where("files.file_type = 'jpg' OR files.file_video = 1")
+		Where("files.file_type = 'jpg' OR files.file_video = 1").
+		Group("photos.id, files.id")
 
 	// Shortcut for known photo ids.
 	if f.ID != "" {

internal/remote/webdav/webdav.go

@@ -180,7 +180,7 @@ func (c Client) CreateDir(dir string) error {
 func (c Client) Upload(from, to string) error {
 	file, err := os.Open(from)
 
-	if err != nil {
+	if err != nil || file == nil {
 		return err
 	}
 

internal/tidb/tidb.go

@@ -10,8 +10,6 @@ func InitDatabase(port uint, password string) error {
 
 	db, err := sql.Open("mysql", fmt.Sprintf("root:@tcp(localhost:%d)/", port))
 
-	defer db.Close()
-
 	if err != nil {
 		log.Debug(err.Error())
 		log.Debug("database login as root with password")
@@ -23,6 +21,8 @@ func InitDatabase(port uint, password string) error {
 		return err
 	}
 
+	defer db.Close()
+
 	if password != "" {
 		log.Debug("set database password")
 

pkg/fs/zip.go

@@ -31,11 +31,12 @@ func Zip(filename string, files []string) error {
 }
 
 func AddToZip(zipWriter *zip.Writer, filename string) error {
-
 	fileToZip, err := os.Open(filename)
+
 	if err != nil {
 		return err
 	}
+
 	defer fileToZip.Close()
 
 	// Get the file information
@@ -64,6 +65,7 @@ func AddToZip(zipWriter *zip.Writer, filename string) error {
 // Extract Zip file in destination directory
 func Unzip(src, dest string) (fileNames []string, err error) {
 	r, err := zip.OpenReader(src)
+
 	if err != nil {
 		return fileNames, err
 	}

pkg/txt/words.go

@@ -72,6 +72,28 @@ func UniqueWords(words []string) (results []string) {
 	return results
 }
 
+// RemoveFromWords removes words from a string slice and returns the sorted result.
+func RemoveFromWords(words []string, remove string) (results []string) {
+	remove = strings.ToLower(remove)
+	last := ""
+
+	SortCaseInsensitive(words)
+
+	for _, w := range words {
+		w = strings.ToLower(w)
+
+		if len(w) < 3 || w == last || strings.Contains(remove, w){
+			continue
+		}
+
+		last = w
+
+		results = append(results, w)
+	}
+
+	return results
+}
+
 // UniqueKeywords returns a slice of unique and sorted keywords without stopwords.
 func UniqueKeywords(s string) (results []string) {
 	last := ""

pkg/txt/words_test.go

@@ -126,3 +126,14 @@ func TestUniqueKeywords(t *testing.T) {
 		assert.Equal(t, []string(nil), result)
 	})
 }
+
+func TestRemoveFromWords(t *testing.T) {
+	t.Run("brown apple", func(t *testing.T) {
+		result := RemoveFromWords([]string{"lazy", "jpg", "Brown", "apple", "brown", "new-york", "JPG"}, "brown apple")
+		assert.Equal(t, []string{"jpg", "lazy", "new-york"}, result)
+	})
+	t.Run("empty", func(t *testing.T) {
+		result := RemoveFromWords([]string{"lazy", "jpg", "Brown", "apple"}, "")
+		assert.Equal(t, []string{"apple", "brown", "jpg", "lazy"}, result)
+	})
+}

scripts/build.sh

@@ -30,6 +30,11 @@ if [[ $1 == "debug" ]]; then
 	go build -ldflags "-X main.version=${PHOTOPRISM_DATE}-${PHOTOPRISM_VERSION}-${PHOTOPRISM_OS}-${PHOTOPRISM_ARCH}-DEBUG" -o $2 cmd/photoprism/photoprism.go
 	du -h $2
 	echo "Done."
+elif [[ $1 == "race" ]]; then
+  echo "Building with data race detector..."
+	go build -race -ldflags "-X main.version=${PHOTOPRISM_DATE}-${PHOTOPRISM_VERSION}-${PHOTOPRISM_OS}-${PHOTOPRISM_ARCH}-DEBUG" -o $2 cmd/photoprism/photoprism.go
+	du -h $2
+	echo "Done."
 elif [[ $1 == "static" ]]; then
   echo "Building static production binary..."
 	go build -a -v -ldflags "-linkmode external -extldflags \"-static -L /usr/lib -ltensorflow\" -s -w -X main.version=${PHOTOPRISM_DATE}-${PHOTOPRISM_VERSION}-${PHOTOPRISM_OS}-${PHOTOPRISM_ARCH}" -o $2 cmd/photoprism/photoprism.go