// IDs returns an Int64Slice with all website ids
func (ws WebsiteSlice) IDs() utils.Int64Slice {
	if len(ws) == 0 {
		return nil
	}
	var ids utils.Int64Slice
	for _, w := range ws {
		if w != nil {
			ids.Append(w.Data.WebsiteID)
		}
	}
	return ids
}

// IDs returns an Int64Slice with all store ids
func (s StoreSlice) IDs() utils.Int64Slice {
	if len(s) == 0 {
		return nil
	}
	var ids utils.Int64Slice
	for _, st := range s {
		if st != nil {
			ids.Append(st.Data().StoreID)
		}
	}
	return ids
}

// IDs returns an Int64Slice with all store ids
func (s GroupSlice) IDs() utils.Int64Slice {
	if len(s) == 0 {
		return nil
	}
	var ids utils.Int64Slice
	for _, g := range s {
		if g != nil {
			ids.Append(g.Data().GroupID)
		}
	}
	return ids
}

// altHandlerByID returns the Handler for the searchID. If not found
// or slices have an indifferent length or something is nil it will
// return the DefaultErrorHandler.
func findHandlerByID(so scope.Scope, id int64, idsIdx utils.Int64Slice, handlers []ctxhttp.Handler) ctxhttp.Handler {

	if len(idsIdx) != len(handlers) {
		return DefaultAlternativeHandler
	}
	index := idsIdx.Index(id)
	if index < 0 {
		return DefaultAlternativeHandler
	}
	prospect := handlers[index]
	if nil == prospect {
		return DefaultAlternativeHandler
	}

	if PkgLog.IsInfo() {
		PkgLog.Info("geoip.findHandlerByID.found", "scope", so.String(), "id", id, "idsIdx", idsIdx)
	}
	return prospect
}