2bad5b3cdd
In MySQL, you can't modify the same table which you use in the SELECT part (DELETE and UPDATE with subquery): https://dev.mysql.com/doc/refman/8.0/en/update.html We need to verify how this affects large photo libraries as it probably "breaks" the query optimizer. So might lead to bad performance as well as high CPU and/or memory usage.
111 lines
3.3 KiB
Go
111 lines
3.3 KiB
Go
package query
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import (
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"time"
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"github.com/jinzhu/gorm"
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"github.com/photoprism/photoprism/internal/entity"
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)
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// PhotoByID returns a Photo based on the ID.
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func PhotoByID(photoID uint64) (photo entity.Photo, err error) {
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if err := UnscopedDb().Where("id = ?", photoID).
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Preload("Labels", func(db *gorm.DB) *gorm.DB {
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return db.Order("photos_labels.uncertainty ASC, photos_labels.label_id DESC")
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}).
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Preload("Labels.Label").
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Preload("Camera").
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Preload("Lens").
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Preload("Details").
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Preload("Place").
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Preload("Cell").
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Preload("Cell.Place").
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First(&photo).Error; err != nil {
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return photo, err
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}
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return photo, nil
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}
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// PhotoByUID returns a Photo based on the UID.
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func PhotoByUID(photoUID string) (photo entity.Photo, err error) {
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if err := UnscopedDb().Where("photo_uid = ?", photoUID).
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Preload("Labels", func(db *gorm.DB) *gorm.DB {
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return db.Order("photos_labels.uncertainty ASC, photos_labels.label_id DESC")
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}).
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Preload("Labels.Label").
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Preload("Camera").
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Preload("Lens").
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Preload("Details").
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Preload("Place").
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Preload("Cell").
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Preload("Cell.Place").
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First(&photo).Error; err != nil {
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return photo, err
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}
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return photo, nil
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}
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// PhotoPreloadByUID returns a Photo based on the UID with all dependencies preloaded.
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func PhotoPreloadByUID(photoUID string) (photo entity.Photo, err error) {
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if err := UnscopedDb().Where("photo_uid = ?", photoUID).
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Preload("Labels", func(db *gorm.DB) *gorm.DB {
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return db.Order("photos_labels.uncertainty ASC, photos_labels.label_id DESC")
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}).
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Preload("Labels.Label").
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Preload("Camera").
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Preload("Lens").
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Preload("Details").
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Preload("Place").
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Preload("Cell").
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Preload("Cell.Place").
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First(&photo).Error; err != nil {
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return photo, err
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}
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photo.PreloadMany()
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return photo, nil
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}
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// PhotosMissing returns photo entities without existing files.
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func PhotosMissing(limit int, offset int) (entities entity.Photos, err error) {
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err = Db().
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Select("photos.*").
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Joins("JOIN files a ON photos.id = a.photo_id ").
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Joins("LEFT JOIN files b ON a.photo_id = b.photo_id AND a.id != b.id AND b.file_missing = 0").
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Where("a.file_missing = 1 AND b.id IS NULL").
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Where("photos.photo_type <> ?", entity.TypeText).
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Group("photos.id").
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Limit(limit).Offset(offset).Find(&entities).Error
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return entities, err
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}
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// ResetPhotoQuality resets the quality of photos without primary file to -1.
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func ResetPhotoQuality() error {
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return Db().Table("photos").
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Where("id IN (SELECT id FROM (SELECT photos.id FROM photos LEFT JOIN files ON photos.id = files.photo_id AND files.file_primary = 1 WHERE files.id IS NULL GROUP BY photos.id) AS tmp)").
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Update("photo_quality", -1).Error
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}
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// PhotosCheck returns photos selected for maintenance.
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func PhotosCheck(limit int, offset int) (entities entity.Photos, err error) {
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err = Db().
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Preload("Labels", func(db *gorm.DB) *gorm.DB {
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return db.Order("photos_labels.uncertainty ASC, photos_labels.label_id DESC")
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}).
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Preload("Labels.Label").
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Preload("Camera").
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Preload("Lens").
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Preload("Details").
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Preload("Place").
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Preload("Cell").
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Preload("Cell.Place").
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Where("checked_at IS NULL OR checked_at < ?", time.Now().Add(-1*time.Hour*24*3)).
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Where("updated_at < ?", time.Now().Add(-1*time.Minute*10)).
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Limit(limit).Offset(offset).Find(&entities).Error
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return entities, err
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}
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