/// <summary>Adds a movie to the database.</summary>
/// <param name="movie">The movie to add.</param>
public void Add(Movie movie)
{
//Validate
if (movie == null)
{
throw new ArgumentNullException("movie");
}
ObjectValidator.Validate(movie);
//if (movie == null) return;
try
{
AddCore(movie);
}
catch (Exception e)
{
throw new Exception("Add failed", e);
};
}
public void Add(Movie movie)
{
// crashes a system just for education purpose
// Validation
if (movie == null)
{
throw new ArgumentNullException(nameof(movie));
}
ObjectValidator.Validate(movie);
// TODO: Validate
//if (movie == null)
// return;
//if (movie == null) return;
try
{
AddCore(movie);
} catch (Exception e)
{
throw new Exception("Add failed", e); // the e is usefull debugging (chains the two exceptions togethor)
};
}
public void Update(int id, Movie newMovie)
{
if (id <= 0)
{
//return;
throw new ArgumentOutOfRangeException(nameof(id), "Id must be > 0");
}
if (newMovie == null)
{
//return;
throw new ArgumentNullException(nameof(newMovie));
}
// if (!String.IsNullOrEmpty (newMovie.Validate()))
//var context = new ValidationContext (newMovie);
//var results = newMovie.Validate (context);
var results = ObjectValidator.TryValidateObject(newMovie);
if (results.Count() > 0)
{
//return;
throw new ValidationException(
results.FirstOrDefault().ErrorMessage);
}
var existing = GetByNameCore(newMovie.Title);
if (existing != null && existing.Id != id)
{
throw new ArgumentException("Movie must be unique");
}
try
{
UpdateCore(id, newMovie);
} catch (IOException ex)
{
throw new Exception("An error occurred updating the movie", ex);
};
//UpdateCore (id, newMovie);
}
public void Update(int id, Movie newMovie)
{
//Validate
if (id <= 0)
{
throw new ArgumentOutOfRangeException(nameof(id),
"Id must be > 0.");
}
if (newMovie == null)
{
throw new ArgumentNullException(nameof(newMovie));
}
var results = ObjectValidator.TryValidateObject(newMovie);
if (results.Count() > 0)
{
throw new ValidationException(
results.FirstOrDefault().ErrorMessage);
}
//Must be unique
var existing = GetByNameCore(newMovie.Title);
if (existing != null && existing.Id != id)
{
throw new ArgumentException("Movie must be unique.");
}
try
{
UpdateCore(id, newMovie);
}
catch (IOException ex)
{
throw new Exception("An error occurred updating the movie.", ex);
}
}
