/// <summary>
/// Deletes exacly one Symbol by id in Symbols table,
/// deletes all the entries of the symbol in CompositesOf table
/// </summary>
/// <param name="id"></param>
/// <returns>true false depending on success</returns>
public bool DeleteExact(int id)
{
using (var db = new BlissBaseContext(testing))
{
Symbols sym = db.Symbols.Find(id);
try
{
// Deletes the relations where the symbol is a component of
// a composite symbol
var compOf = new CompositeOfDAL();
compOf.DeleteBySymbolID(id);
// Sets the symbol as a standard type (Deletes it from
// SymbolTypes table)
var type = new SymbolTypeDAL();
type.SetStandardForSymID(id);
// Deletes the symbol from Symbols table
db.Symbols.Remove(sym);
db.SaveChanges();
}
catch (Exception e)
{
Debug.WriteLine("Exception when remowing symbol: " + id);
Debug.WriteLine(e.StackTrace);
return false;
}
}
return true;
}
