/// <summary>
/// Initializes a new instance of the <see cref="CategoryCreatePageViewModel"/> class.
/// </summary>
/// <param name="navigationService">The navigation service.</param>
/// <param name="context">The context.</param>
/// <exception cref="ArgumentNullException">
/// navigationService
/// or
/// context
/// </exception>
public CategoryCreatePageViewModel(
[NotNull] INavigationService navigationService,
[NotNull] ILocalDbContext context)
{
if (navigationService == null)
{
throw new ArgumentNullException(nameof(navigationService));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
this.navigationService = navigationService;
this.context = context;
this.AvailableColor = new List <SolidColorBrush>
{
new SolidColorBrush(new Color {
A = 255, R = 255, G = 255, B = 0
}),
new SolidColorBrush(new Color {
A = 255, R = 255, G = 0, B = 255
}),
new SolidColorBrush(new Color {
A = 255, R = 255, G = 0, B = 0
}),
new SolidColorBrush(new Color {
A = 255, R = 0, G = 255, B = 255
})
};
this.Color = this.AvailableColor.First();
this.CreateCategoryCommand = new DelegateCommand(this.CreateCategoryCommandExecute, this.CreateCategoryCommandCanExecute);
}
/// <summary>
/// Initializes a new instance of the <see cref="HomePageViewModel"/> class.
/// </summary>
/// <param name="transactionsRepository">The transactions repository.</param>
/// <param name="context">The context.</param>
/// <exception cref="ArgumentNullException">
/// transactionsRepository
/// or
/// context
/// </exception>
public HomePageViewModel(
[NotNull] ITransactionsRepository transactionsRepository,
[NotNull] ILocalDbContext context)
{
if (transactionsRepository == null)
{
throw new ArgumentNullException(nameof(transactionsRepository));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
this.transactionsRepository = transactionsRepository;
this.context = context;
// Populate categories
this.context.Categories.ForEach(c => this.Categories.Add(new CategoryViewModel(c)));
// Populate todays transactions collection
this.context.Transactions
.Where(t => t.Date.Date == DateTime.Now.Date)
.ForEach(t => this.TodaysTransactions.Add(new TransactionViewModel(t)));
// Populate graph collections
this.PopulateGraphCollections();
// Handle empty transactions collection property changed notification
this.TodaysTransactions.CollectionChanged += (sender, args) =>
this.OnPropertyChanged(() => this.IsTodaysTransactionsEmpty);
// Initial clear of quick transaction view model
this.ClearQuickTransaction();
}
/// <summary>
/// Instantiates a new instance of <see cref="TransactionsRepository"/> class.
/// </summary>
/// <param name="context">The context.</param>
/// <exception cref="ArgumentNullException">context</exception>
public TransactionsRepository(ILocalDbContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
this.context = context;
}
/// <summary>
/// Saves the context.
/// </summary>
/// <returns>Returns <c>True</c> if context was saved successfully; <c>False</c> otherwise.</returns>
public static async Task <bool> TrySaveContextAsync(this ILocalDbContext context)
{
try
{
await context.SaveChangesAsync();
return(true);
}
catch (Exception ex)
{
var logger = PrismUnityApplication.Current.Container.Resolve <ILogger>();
logger.Error(ex, "Failed to save context changes.");
return(false);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CategoriesPageViewModel"/> class.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="navigationService">The navigation service.</param>
/// <exception cref="ArgumentNullException">
/// context
/// or
/// navigationService
/// </exception>
public CategoriesPageViewModel(
[NotNull] ILocalDbContext context,
[NotNull] INavigationService navigationService)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (navigationService == null)
{
throw new ArgumentNullException(nameof(navigationService));
}
this.context = context;
this.navigationService = navigationService;
this.CreateCategoryCommand = new DelegateCommand(this.CreateCategoryCommandExecute);
}
/// <summary>
/// Seeds the context.
/// </summary>
/// <param name="context">The context.</param>
private async Task SeedContextAsync(ILocalDbContext context)
{
// Prepare accounts
if (!context.Accounts.Any())
{
var account = new Account
{
Name = "Account"
};
context.Accounts.Add(account);
await context.SaveChangesAsync();
}
// Prepare groups
if (!context.Groups.Any())
{
var shoppingCategory = new Group
{
Name = "Shopping",
AccountId = context.Accounts.First().Id
};
context.Groups.Add(shoppingCategory);
await context.SaveChangesAsync();
}
// Prepare categories
if (!context.Categories.Any())
{
var foodCategory = new Category
{
Color = Colors.Purple.ToString(),
Name = "Food",
GroupId = context.Groups.First().Id
};
context.Categories.Add(foodCategory);
await context.SaveChangesAsync();
}
}
public LocalService(ILocalDbContext context)
{
}
