Method processDateComparison

cmd/grv/expression_processor.go:382–413

(fieldTypeDescriptor FieldTypeDescriptor)

}

func (binaryExpression *BinaryExpression) processDateComparison(fieldTypeDescriptor FieldTypeDescriptor) (err error) {
	isDateComparison, dateString, datePtr := binaryExpression.isDateComparison(fieldTypeDescriptor)
	if !isDateComparison {
		return
	}

	var dateFormat string

	switch {
	case dateFormatPattern.MatchString(dateString.value.value):
		dateFormat = queryDateFormat
	case dateTimeFormatPattern.MatchString(dateString.value.value):
		dateFormat = queryDateTimeFormat
	default:
		return GenerateExpressionError(dateString, "Invalid date: %v. Format must be either %v or %v",
			dateString.value.value, queryDateFormat, queryDateTimeFormat)
	}

	utcDateTime, err := time.Parse(dateFormat, dateString.value.value)
	if err != nil {
		return GenerateExpressionError(dateString, "Unable to parse date %v: %v", dateString.value.value, err)
	}

	dateTime := TimeWithLocation(utcDateTime, time.Local)

	*datePtr = &DateLiteral{
		dateTime:   dateTime,
		stringTime: dateString.value,
	}

	return
}

func (binaryExpression *BinaryExpression) isDateComparison(fieldTypeDescriptor FieldTypeDescriptor) (isDateComparison bool, dateString *StringLiteral, datePtr *Expression) {
	var identifier *Identifier