private void TryParseParametersForFilterAndTake(string takeCommand, string takeQuantity, string courseName, string filter)
{
if (takeCommand == "take")
{
if (takeQuantity == "all")
{
repository.FilterAndTake(courseName, filter, null);
}
else
{
int studentsToTake;
var hasParsed = int.TryParse(takeQuantity, out studentsToTake);
if (hasParsed)
{
repository.FilterAndTake(courseName, filter, studentsToTake);
}
else
{
OutputWriter.WriteMessageOnNewLine(ExceptionMessages.InvalidTakeQueryParamter);
}
}
}
else
{
OutputWriter.WriteMessageOnNewLine(ExceptionMessages.InvalidTakeQueryParamter);
}
}
private static void TryParseParametersForFilterAndTake(string takeCommand, string takeQuantity, string courseName, string filter)
{
if (takeCommand == "take")
{
if (takeQuantity == "all")
{
StudentsRepository.FilterAndTake(courseName, filter);
}
else
{
int studentsToTake;
bool hasParsed = int.TryParse(takeQuantity, out studentsToTake);
if (hasParsed)
{
StudentsRepository.FilterAndTake(courseName, filter, studentsToTake);
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidTakeQuantityParameter);
}
}
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidTakeQuantityParameter);
}
}
private static void TryParseParametersForOrderAndTake(string takeCommand, string takeQuantity, string courseName, string comparison)
{
if (takeCommand == "take")
{
if (takeQuantity == "all")
{
StudentsRepository.OrderAndTake(courseName, comparison);
}
else
{
if (int.TryParse(takeQuantity, out int studentsToTake))
{
StudentsRepository.FilterAndTake(courseName, comparison, studentsToTake);
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidTakeQuantityParameter);
}
}
}
else
{
OutputWriter.DisplayException(ExceptionMessages.InvalidTakeQuantityParameter);
}
}