/// <summary>
/// Creates a new jam with default values
/// </summary>
/// <returns></returns>
internal Jam Create()
{
Jam jam = new Jam
{
AdddedDate = DateTime.Now
};
return(jam);
}
/// <summary>
/// Saves a new jam.
/// </summary>
/// <param name="jam"></param>
/// <returns></returns>
internal Jam Save(Jam jam)
{
// Read in the existing jams
var jams = this.Retrieve();
// Assign a new Id
var maxId = jams.Max(p => p.JamId);
jam.JamId = maxId + 1;
jams.Add(jam);
WriteData(jams);
return(jam);
}
/// <summary>
/// Updates an existing jam
/// </summary>
/// <param name="id"></param>
/// <param name="jam"></param>
/// <returns></returns>
internal Jam Save(int id, Jam jam)
{
// Read in the existing jams
var jams = this.Retrieve();
// Locate and replace the item
var itemIndex = jams.FindIndex(p => p.JamId == jam.JamId);
if (itemIndex > 0)
{
jams[itemIndex] = jam;
}
else
{
return(null);
}
WriteData(jams);
return(jam);
}
