87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
package query
|
|
|
|
import (
|
|
"database/sql"
|
|
|
|
"github.com/photoprism/photoprism/internal/entity"
|
|
)
|
|
|
|
type HashMap map[string]bool
|
|
|
|
// CountFileHashes counts distinct file hashes.
|
|
func CountFileHashes() (count int) {
|
|
if err := UnscopedDb().
|
|
Table(entity.File{}.TableName()).
|
|
Where("file_missing = 0 AND deleted_at IS NULL").
|
|
Select("COUNT(DISTINCT(file_hash))").Count(&count).Error; err != nil {
|
|
log.Errorf("files: %s (count hashes)", err)
|
|
}
|
|
|
|
return count
|
|
}
|
|
|
|
// FetchHashMap populates a hash map from the database.
|
|
func FetchHashMap(rows *sql.Rows, result HashMap, hashLen int) (err error) {
|
|
defer func(rows *sql.Rows) {
|
|
err = rows.Close()
|
|
}(rows)
|
|
|
|
for rows.Next() {
|
|
var h string
|
|
|
|
if err = rows.Scan(&h); err != nil {
|
|
return err
|
|
} else if len(h) > hashLen {
|
|
result[h[:hashLen]] = true
|
|
} else if h != "" {
|
|
result[h] = true
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// FileHashMap returns a map of all known file hashes.
|
|
func FileHashMap() (result HashMap, err error) {
|
|
count := CountFileHashes()
|
|
|
|
result = make(HashMap, count)
|
|
|
|
if rows, err := UnscopedDb().
|
|
Table(entity.File{}.TableName()).
|
|
Where("file_missing = 0 AND deleted_at IS NULL").
|
|
Where("file_hash IS NOT NULL AND file_hash <> ''").
|
|
Select("file_hash").Rows(); err != nil {
|
|
return result, err
|
|
} else if err := FetchHashMap(rows, result, 40); err != nil {
|
|
return result, err
|
|
}
|
|
|
|
return result, err
|
|
}
|
|
|
|
// ThumbHashMap returns a map of all known thumb file hashes.
|
|
func ThumbHashMap() (result HashMap, err error) {
|
|
tables := []string{
|
|
entity.Album{}.TableName(),
|
|
entity.Label{}.TableName(),
|
|
entity.Marker{}.TableName(),
|
|
entity.Subject{}.TableName(),
|
|
}
|
|
|
|
result = make(HashMap)
|
|
|
|
for i := range tables {
|
|
if rows, err := UnscopedDb().
|
|
Table(tables[i]).
|
|
Where("thumb IS NOT NULL AND thumb <> ''").
|
|
Select("thumb").Rows(); err != nil {
|
|
return result, err
|
|
} else if err := FetchHashMap(rows, result, 40); err != nil {
|
|
return result, err
|
|
}
|
|
}
|
|
|
|
return result, nil
|
|
}
|