/// <summary>
/// Find all matching datasets within the database based on the
/// given dataset and the DSFindBy method.
/// </summary>
/// <param name="data">The dataset is used as the sought value</param>
/// <param name="findBy">The method to search by</param>
/// <param name="db">The active database context to seach</param>
/// <returns>The datasets that match</returns>
private static MovingAverageDS[] Find(MovingAverageDS data, DSFindBy findBy, DatasetContext db)
{
MovingAverageDS[] toReturn = null;
switch (findBy)
{
case DSFindBy.Data:
toReturn = (from MovingAverageDS ds in db.dataSets
where data.data == ds.data
select ds).ToArray();
break;
case DSFindBy.Id:
toReturn = (from MovingAverageDS ds in db.dataSets
where data.id == ds.id
select ds).ToArray();
break;
case DSFindBy.WindowSize:
toReturn = (from MovingAverageDS ds in db.dataSets
where data.windowSize == ds.windowSize
select ds).ToArray();
break;
case DSFindBy.Name:
toReturn = (from MovingAverageDS ds in db.dataSets
where data.name == ds.name
select ds).ToArray();
break;
}
return(toReturn);
}
/// <summary>
/// Handle a database operation for the datasets.
/// </summary>
/// <param name="operation">The operation to perform</param>
/// <param name="data">The data to be used for the operation. Ignored by GetAll operation</param>
/// <param name="findBy">The method by which to find the data. Only used by the Find operation</param>
/// <returns>The output of the operation</returns>
public static MovingAverageDS[] Operation(DSOperation operation, MovingAverageDS data = null, DSFindBy findBy = DSFindBy.Id)
{
MovingAverageDS[] toReturn = null;
using (DatasetContext db = new DatasetContext())
{
switch (operation)
{
case DSOperation.Add:
toReturn = new MovingAverageDS[] { Add(data, db) };
break;
case DSOperation.Delete:
Delete(data, db);
break;
case DSOperation.Modify:
Modify(data, db);
break;
case DSOperation.Find:
toReturn = Find(data, findBy, db);
break;
case DSOperation.GetAll:
toReturn = GetAll(db);
break;
}
db.SaveChanges();
}
return(toReturn);
}
