private runExpressionOnColumn()

in packages/search-expression/src/exec.ts [82:125]
44 lines of code
18 McCabe index (conditional complexity)

    private runExpressionOnColumn(datum: object, ex: SearchExpressionLowercase) {
        const actualDataValue = datum[ex.name];
        if (ex.operator === 'isnullorEmpty') {
            return isnullorEmpty(actualDataValue);
        } else if (ex.operator === '!isnullorEmpty') {
            return !isnullorEmpty(actualDataValue);
        }
        let dataValue = actualDataValue;
        let expressionValue = ex.value;
        if (ex.column) {
            if (ex.column.type === 'string' || ex.stringOperation) {
                dataValue = valueToString(actualDataValue).toLocaleLowerCase();
                expressionValue = ex.valueLow;
            } else if (ex.column.type === 'boolean') {
                dataValue = valueToBoolean(actualDataValue);
                expressionValue = ex.valueBool;
            } else if (ex.column.quantitative) {
                dataValue = +actualDataValue;
                expressionValue = +ex.value;
            }
        }
        switch (ex.operator) {
            case '!=':
                return dataValue != expressionValue;
            case '<':
                return dataValue < expressionValue;
            case '<=':
                return dataValue <= expressionValue;
            case '==':
                return dataValue == expressionValue;
            case '>':
                return dataValue > expressionValue;
            case '>=':
                return dataValue >= expressionValue;
            case 'contains':
                return dataValue.indexOf(expressionValue) >= 0;
            case '!contains':
                return dataValue.indexOf(expressionValue) < 0;
            case 'starts':
                return dataValue.indexOf(expressionValue) == 0;
            case '!starts':
                return dataValue.indexOf(expressionValue) !== 0;
        }
    }