a!dateTimeField(
  label: "${displayName}",
  labelPosition: if(ri!readOnly, "ADJACENT", "ABOVE"),
  instructions: if(ri!readOnly, "", "${instructions}"),
  helpTooltip: if(ri!readOnly, "", "${helpTooltip}"),
  required: ${requiredField},
  value: ri!record.${fieldName},
  saveInto: ri!record.${fieldName},
  readOnly: ri!readOnly
)