// saveFields appends cayley's Save method to a path for each field in
// selectedFields, except the ones that appears also in exceptFields
func saveFields(p *path.Path, selectedFields []string, exceptFields []string) {
for _, selectedField := range selectedFields {
if utils.Contains(selectedField, exceptFields) {
continue
}
p = p.Save(selectedField, selectedField)
}
}
// PreviousVersions find and returns all the packages of the same branch that
// have a lower version number, selecting the specified fields
// It requires that FieldPackageNextVersion field has been selected on p
// The immediate lower version is listed first, and the special start-of-Branch
// package is last, p is not listed
func (p *Package) PreviousVersions(selectedFields []string) ([]*Package, error) {
var previousVersions []*Package
if !utils.Contains(FieldPackagePreviousVersion, selectedFields) {
selectedFields = append(selectedFields, FieldPackagePreviousVersion)
}
previousVersion, err := p.PreviousVersion(selectedFields)
if err != nil {
return []*Package{}, err
}
if previousVersion != nil {
previousVersions = append(previousVersions, previousVersion)
previousPreviousVersions, err := previousVersion.PreviousVersions(selectedFields)
if err != nil {
return []*Package{}, err
}
previousVersions = append(previousVersions, previousPreviousVersions...)
}
return previousVersions, nil
}
// NextVersions find and returns all the packages of the same branch that have
// a higher version number, selecting the specified fields
// It requires that FieldPackageNextVersion field has been selected on p
// The immediate higher version is listed first, and the special end-of-Branch package is last, p is not listed
func (p *Package) NextVersions(selectedFields []string) ([]*Package, error) {
var nextVersions []*Package
if !utils.Contains(FieldPackageNextVersion, selectedFields) {
selectedFields = append(selectedFields, FieldPackageNextVersion)
}
nextVersion, err := p.NextVersion(selectedFields)
if err != nil {
return []*Package{}, err
}
if nextVersion != nil {
nextVersions = append(nextVersions, nextVersion)
nextNextVersions, err := nextVersion.NextVersions(selectedFields)
if err != nil {
return []*Package{}, err
}
nextVersions = append(nextVersions, nextNextVersions...)
}
return nextVersions, nil
}
