/// <summary>
/// Deletes a remfile and associated viewmodel.
/// </summary>
/// <param name="remFileViewModel">The associated viewmodel to the remFile model</param>
/// <returns>Task completed</returns>
private async Task DeleteRemFile(RemFileViewModel remFileViewModel)
{
RemFiles.Remove(remFileViewModel);
var remFile = await _remFileStore.GetRemFile(remFileViewModel.Id);
await _remFileStore.DeleteRemFile(remFile);
}
/// <summary>
/// Update view from RemFileViewModel from MainPage
/// </summary>
/// <param name="viewModel">RemFileViewModel from MainPage</param>
private void UpdateViewFromRemFile(RemFileViewModel viewModel)
{
this.Id = viewModel.Id;
this.Title = viewModel.Title;
this.Description = viewModel.Description;
this.ImagePath = viewModel.ImagePath;
this.Date = viewModel.Date;
}
/// <summary>
/// Constructor for viewmodel associated with RemFileDetailPage.xaml
/// </summary>
/// <param name="viewModel">RemFileViewModel currently showing details for</param>
/// <param name="remFileStore">DB connection</param>
/// <param name="pageService">PageService</param>
public RemFileDetailPageViewModel(RemFileViewModel viewModel, IRemFileStore remFileStore, IPageService pageService)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
this._remFileStore = remFileStore;
this._pageService = pageService;
UpdateViewFromRemFile(viewModel);
SaveCommand = new Command(async() => await Save());
PhotoCommand = new Command(async() => await Photo());
}
/// <summary>
/// Show detailPage of selected RemFile.
/// </summary>
/// <param name="viewModel">remFile viewmodel to show details for</param>
/// <returns></returns>
private async Task SelectRemFile(RemFileViewModel viewModel)
{
if (viewModel == null)
{
return;
}
var detailPageViewModel = new RemFileDetailPageViewModel(viewModel, _remFileStore, _pageService);
detailPageViewModel.RemFileUpdated += (source, updatedRemFile) => {
viewModel.Id = updatedRemFile.Id;
viewModel.Title = updatedRemFile.Title;
viewModel.Date = updatedRemFile.Date;
viewModel.Description = updatedRemFile.Description;
viewModel.ImagePath = updatedRemFile.ImagePath;
};
await _pageService.PushAsync(new RemFileDetailPage(detailPageViewModel));
SelectedRemFile = null;
}
