func tagNamesForFile(store *storage.Storage, tx *storage.Tx, fileId entities.FileId, explicitOnly, colour bool) ([]string, error) {
fileTags, err := store.FileTagsByFileId(tx, fileId, explicitOnly)
if err != nil {
return nil, fmt.Errorf("could not retrieve file-tags for file '%v': %v", fileId, err)
}
taggings := make([]string, len(fileTags))
for index, fileTag := range fileTags {
tag, err := store.Tag(tx, fileTag.TagId)
if err != nil {
return nil, fmt.Errorf("could not lookup tag: %v", err)
}
if tag == nil {
return nil, fmt.Errorf("tag '%v' does not exist", fileTag.TagId)
}
var tagging string
if fileTag.ValueId == 0 {
tagging = formatTagValueName(tag.Name, "", colour, fileTag.Implicit, fileTag.Explicit)
} else {
value, err := store.Value(tx, fileTag.ValueId)
if err != nil {
return nil, fmt.Errorf("could not lookup value: %v", err)
}
if value == nil {
return nil, fmt.Errorf("value '%v' does not exist", fileTag.ValueId)
}
tagging = formatTagValueName(tag.Name, value.Name, colour, fileTag.Implicit, fileTag.Explicit)
}
taggings[index] = tagging
}
ansi.Sort(taggings)
return taggings, nil
}