/// <summary>
/// This will delete an item from the database
/// </summary>
/// <param name="keys">The keys must be given in the same order as entity framework has them</param>
/// <returns></returns>
public async Task <ISuccessOrErrors> DeleteAsync <TEntity>(params object[] keys) where TEntity : class
{
var keyProperties = _db.GetKeyProperties <TEntity>();
if (keyProperties.Count != keys.Length)
{
throw new ArgumentException("The number of keys in the data entry did not match the number of keys provided");
}
var entityToDelete = await _db.Set <TEntity>().FindAsync(keys);
if (entityToDelete == null)
{
return
(new SuccessOrErrors().AddSingleError(
"Could not delete entry as it was not in the database. Could it have been deleted by someone else?"));
}
_db.Set <TEntity>().Remove(entityToDelete);
var result = await _db.SaveChangesWithCheckingAsync();
if (result.IsValid)
{
result.SetSuccessMessage("Successfully deleted {0}.", typeof(TEntity).Name);
}
return(result);
}
/// <summary>
/// This will delete an item from the database
/// </summary>
/// <param name="keys">The keys must be given in the same order as entity framework has them</param>
/// <returns></returns>
public async Task <ISuccessOrErrors> DeleteAsync <TEntity>(params object[] keys) where TEntity : class
{
var entityToDelete = await _db.Set <TEntity>().FindAsync(keys).ConfigureAwait(false);
if (entityToDelete == null)
{
return
(new SuccessOrErrors().AddSingleError(
"Could not delete entry as it was not in the database. Could it have been deleted by someone else?"));
}
_db.Set <TEntity>().Remove(entityToDelete);
var result = await _db.SaveChangesWithCheckingAsync().ConfigureAwait(false);
if (result.IsValid)
{
result.SetSuccessMessage("Successfully deleted {0}.", typeof(TEntity).Name);
}
return(result);
}