func verifyQuery()

in connectors/grafana-plugin/pkg/plugin/plugin.go [166:208]

37 lines of code
14 McCabe index (conditional complexity)


func verifyQuery(query backend.DataQuery) (qp *queryParam, errMsg string) {

	err := json.Unmarshal(query.JSON, &qp)
	if err != nil {
		return nil, ""
	}

	if qp.Hide {
		return nil, "none"
	}

	if qp.SqlType == "SQL: Drop-down List" {
		if len(qp.Paths) < 1 {
			return nil, "Input error, please select TIME-SERIES"
		}
		if qp.GroupBy.SamplingInterval != "" && qp.AggregateFun == "" {
			return nil, "Input error, please select FUNCTION when SAMPLING INTERVAL has a value"
		}
	} else if qp.SqlType == "SQL: Full Customized" {
		if len(qp.Expression) == 0 {
			return nil, "Input error, SELECT is required"
		}

		for i := 0; i < len(qp.Expression); i++ {
			if qp.Expression[i] == "" {
				return nil, "Input error, SELECT is required"
			}

		}
		if len(qp.PrefixPath) == 0 {
			return nil, "Input error, FROM is required"
		}
		for i := 0; i < len(qp.PrefixPath); i++ {
			if qp.PrefixPath[i] == "" {
				return nil, "Input error, FROM is required"
			}
		}
	} else {
		return nil, "none"
	}

	return qp, ""
}