// CONSTRUCTORS
/// <summary>
/// Initializes a new instance of <see cref="SingleViewModel"/>
/// </summary>
/// <param name="subject">
/// An instance of <see cref="DataAccess.Entities.Subject"/>
/// </param>
/// <param name="isNew">
/// Determines is this entities is new
/// </param>
/// <param name="isEditingEnabled">
/// Determines is editing allowed
/// </param>
public SingleViewModel(DataAccess.Entities.Subject subject, bool isNew, bool isEditingEnabled = true)
: base(shownEntity: subject, isWritingEnabled: isEditingEnabled)
{
this.isNew = isNew;
insertUpdateCommand = new Commands.Admin.Subject.Single.CreateUpdateCommand(this);
Logger.LogAsync(Core.LogMode.Debug, $"{nameof(SingleViewModel)} created");
}
/// <summary>
/// Executes the command
/// </summary>
/// <param name="parameter">
/// Command parameter
/// <para/>
/// True if value should be created, false if updated
/// </param>
public override void Execute(object parameter)
{
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, $"Execute {nameof(CreateUpdateCommand)}");
// gets entity
DataAccess.Entities.Subject subject = (DataAccess.Entities.Subject)subjectSingleViewModel.ShownEntity;
// get new subject name
string subjectName = subject.Name;
Core.Logger.GetLogger.LogAsync(Core.LogMode.Info, $"New subject name = {subjectName}");
// check if right
if (subjectName.Length > Core.Configuration.DBConfig.ADMIN_MESSAGE_SUBJECT_MAX_LENGTH ||
subjectName.Length < Core.Configuration.DBConfig.ADMIN_MESSAGE_SUBJECT_MIN_LENGTH)
{
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, "Subject name is wrong. Interrupt command executing");
Services.WindowManager.Instance.ShowMessageWindow(Core.Messages.Info.Admin.ADMIN_WRONG_SUBJECT_LENGTH);
return;
}
// create or update, depend on parameter
bool isNew = System.Convert.ToBoolean(parameter);
if (isNew)
{
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, "Create new subject");
DataAccess.Context.UnitOfWork.Instance
.SubjectRepository
.Insert(subject);
}
else
{
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, "Update subject");
DataAccess.Context.UnitOfWork.Instance
.SubjectRepository
.Update(subject);
}
// save changes
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, "Save changes");
DataAccess.Context.UnitOfWork.Instance.Save();
// go back to all items
Core.Logger.GetLogger.LogAsync(Core.LogMode.Debug, "Go to previous content");
Services.NavigationManager.Instance.NavigateToPrevious(parent: Services.DataStorage.Instance.AdminWindowContentControl);
}