photoprism/internal/search/faces.go

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package search
import (
"fmt"
"strings"
"github.com/photoprism/photoprism/internal/entity"
"github.com/photoprism/photoprism/internal/form"
"github.com/photoprism/photoprism/pkg/txt"
)
// Faces searches faces and returns them.
func Faces(f form.FaceSearch) (results FaceResults, err error) {
if err := f.ParseQueryString(); err != nil {
return results, err
}
facesTable := entity.Face{}.TableName()
// Base query.
s := UnscopedDb().Table(facesTable)
if f.Markers {
s = s.Select(fmt.Sprintf(`%s.*, m.marker_uid, m.file_uid, m.marker_name, m.subj_src, m.marker_src,
m.marker_type, m.marker_review, m.marker_invalid, m.size, m.score, m.thumb, m.face_dist`, facesTable))
if txt.Yes(f.Unknown) {
s = s.Joins(`JOIN (
SELECT face_id, MIN(marker_uid) AS marker_uid FROM markers
WHERE face_id <> '' AND subj_uid = '' AND marker_name = '' AND marker_type = 'face' AND marker_src = 'image'
AND marker_invalid = 0 AND face_dist <= 0.64 AND size >= 80 AND score >= 15
GROUP BY face_id) fm
ON faces.id = fm.face_id`)
} else if txt.No(f.Unknown) {
s = s.Joins(`JOIN (
SELECT face_id, MIN(marker_uid) AS marker_uid FROM markers
WHERE face_id <> '' AND subj_uid <> '' AND marker_name <> '' AND marker_type = 'face' AND marker_src = 'image'
AND marker_invalid = 0 AND face_dist <= 0.64 AND size >= 80 AND score >= 15
GROUP BY face_id) fm
ON faces.id = fm.face_id`)
} else {
s = s.Joins(`JOIN (
SELECT face_id, MIN(marker_uid) AS marker_uid FROM markers
WHERE face_id <> '' AND marker_type = 'face' AND marker_src = 'image'
AND marker_invalid = 0 AND face_dist <= 0.64 AND size >= 80 AND score >= 15
GROUP BY face_id) fm
ON faces.id = fm.face_id`)
}
s = s.Joins("JOIN markers m ON m.marker_uid = fm.marker_uid")
} else {
s = s.Select(fmt.Sprintf(`%s.*`, facesTable))
}
// Limit result count.
if f.Count > 0 && f.Count <= MaxResults {
s = s.Limit(f.Count).Offset(f.Offset)
} else {
s = s.Limit(MaxResults).Offset(f.Offset)
}
// Set sort order.
switch f.Order {
case "subject":
s = s.Order(fmt.Sprintf("%s.subj_uid", facesTable))
case "added":
s = s.Order(fmt.Sprintf("%s.created_at DESC", facesTable))
case "samples":
s = s.Order(fmt.Sprintf("%s.samples DESC, %s.id", facesTable, facesTable))
default:
s = s.Order(fmt.Sprintf("%s.samples DESC, %s.id", facesTable, facesTable))
}
// Find specific IDs?
if f.ID != "" {
s = s.Where(fmt.Sprintf("%s.id IN (?)", facesTable), strings.Split(strings.ToUpper(f.ID), txt.Or))
if result := s.Scan(&results); result.Error != nil {
return results, result.Error
}
return results, nil
}
// Exclude unknown faces?
if txt.Yes(f.Unknown) {
s = s.Where(fmt.Sprintf("%s.subj_uid = '' OR %s.subj_uid IS NULL", facesTable, facesTable))
} else if txt.No(f.Unknown) {
s = s.Where(fmt.Sprintf("%s.subj_uid <> '' AND %s.subj_uid IS NOT NULL", facesTable, facesTable))
}
// Show hidden faces?
if !txt.Yes(f.Hidden) {
s = s.Where(fmt.Sprintf("%s.face_hidden = 0", facesTable))
}
// Perform query.
if res := s.Scan(&results); res.Error != nil {
return results, res.Error
}
return results, nil
}