/// <summary>
/// Set up the filter expression based on the incoming values.
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
private Expression <Func <Munro, bool> > GetFilterExpression(MunroQueryDto query)
{
// Validate (Move to Validation class when time permits)
if (query.MinHeight >= query.MaxHeight)
{
throw new ArgumentException("MinHeight must not be greater or equal to MaxHeight");
}
Expression <Func <Munro, bool> > filterExpression = null;
if (query.MunroType != null)
{
filterExpression = filterExpression.And(x => x.MunroType.Equals(query.MunroType));
}
if (query.MinHeight != null)
{
filterExpression = filterExpression.And(x => x.HeightMeters > query.MinHeight);
}
if (query.MaxHeight != null)
{
filterExpression = filterExpression.And(x => x.HeightMeters < query.MaxHeight);
}
return(filterExpression);
}
public PagedResult <Munro> Get([FromQuery] MunroQueryDto query)
{
return(repository.GetPaged(
query.PageNumber,
query.PageSize,
query.SortFields,
query.SortDescending,
GetFilterExpression(query)));
}
public MunrosControllerShould()
{
// Would normally mock here but no need in this instance.
repository = new MunroRepository();
// Set up controller
controller = new MunrosController(repository);
// Set up basic query dto
query = new MunroQueryDto();
}
