/// <summary>
/// For Csv file generation grammars, mark this cell as being included in the CSV file
/// generation with a default value if the column is not explicitly included in the specification
/// </summary>
/// <param name="expression"></param>
/// <param name="defaultValueSource">A lambda to build default data per row</param>
/// <returns></returns>
public static ICellExpression UseDefaultIfNotExplicitlyExpressed(this ICellExpression expression, Func <StepValues, string> defaultValueSource)
{
expression.DefaultValue("NULL");
expression.Metadata(CsvRequiredKey, CsvRequired.UseDefaultIfNotExplicitlyExpressed);
return(expression.Metadata(CsvValueBuilderKey, defaultValueSource));
}
/// <summary>
/// For Csv file generation grammars, mark this cell as being included in the CSV file
/// generation with a default value if the column is not explicitly included in the specification
/// </summary>
/// <param name="expression"></param>
/// <param name="defaultValue"></param>
/// <returns></returns>
public static ICellExpression UseDefaultIfNotExplicitlyExpressed(this ICellExpression expression,
string defaultValue)
{
expression.Metadata(CsvRequiredKey, CsvRequired.UseDefaultIfNotExplicitlyExpressed);
return(expression.DefaultValue(defaultValue));
}
public static ICellExpression DefaultIsEmpty(this ICellExpression expression)
{
return(expression.DefaultValue("EMPTY"));
}
/// <summary>
/// For Csv file generation grammars, mark this cell as being completely omitted
/// from the generated file if the column is not explicitly included in the specification
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static ICellExpression OmitIfInactive(this ICellExpression expression)
{
expression.DefaultValue("NULL");
return(expression.Metadata(CsvRequiredKey, CsvRequired.OmitIfInactive));
}
/// <summary>
/// Shorthand for DefaultValue("NULL")
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static ICellExpression DefaultIsNull(this ICellExpression expression)
{
return(expression.DefaultValue("NULL"));
}