public void Delete(Instruction instrution)
{
if (instrution == null)
throw new Exception("Instruction was not supplied");
Delete(instrution.Id);
}
public Instruction Add(Instruction instruction)
{
int nextId = _instructions.Max(i => i.Id) + 1;
instruction.Id = nextId;
_instructions.Add(instruction);
return instruction;
}
public Instruction Update(Instruction instruction)
{
if(instruction.Id > 0)
{
Delete(instruction.Id);
_instructions.Add(instruction);
}
return instruction;
}