// Extracts the value specified by cfgHdr out of cdr
func (cdre *CdrExporter) cdrFieldValue(cdr *utils.StoredCdr, fltrRl, rsrFld *utils.RSRField, layout string) (string, error) {
if rsrFld == nil {
return "", nil
}
if fltrPass, _ := cdr.PassesFieldFilter(fltrRl); !fltrPass {
return "", fmt.Errorf("Field: %s not matching filter rule %v", fltrRl.Id, fltrRl)
}
if len(layout) == 0 {
layout = time.RFC3339
}
var cdrVal string
switch rsrFld.Id {
case COST_DETAILS: // Special case when we need to further extract cost_details out of logDb
if cdrVal, err = cdre.getCdrCostDetails(cdr.CgrId, cdr.MediationRunId); err != nil {
return "", err
}
case utils.COST:
cdrVal = cdr.FormatCost(cdre.costShiftDigits, cdre.roundDecimals)
case utils.USAGE:
cdrVal = cdr.FormatUsage(layout)
case utils.SETUP_TIME:
cdrVal = cdr.SetupTime.Format(layout)
case utils.ANSWER_TIME: // Format time based on layout
cdrVal = cdr.AnswerTime.Format(layout)
case utils.DESTINATION:
cdrVal = cdr.FieldAsString(&utils.RSRField{Id: utils.DESTINATION})
if cdre.maskLen != -1 && cdre.maskedDestination(cdrVal) {
cdrVal = MaskDestination(cdrVal, cdre.maskLen)
}
default:
cdrVal = cdr.FieldAsString(rsrFld)
}
return rsrFld.ParseValue(cdrVal), nil
}