public void BulkOperationsHelper_AddSqlParamsForUpdateQuery_GetsTypeAndValue()
{
var book = new Book
{
ISBN = "Some ISBN",
Price = 23.99M,
BestSeller = true
};
var columns = new HashSet <string> {
"ISBN", "Price", "BestSeller"
};
var sqlParams = new List <SqlParameter>();
var propertyInfoList = typeof(Book).GetProperties().OrderBy(x => x.Name).ToList();
BulkOperationsHelper.AddSqlParamsForQuery(propertyInfoList, sqlParams, columns, book);
Assert.Equal(3, sqlParams.Count);
}
public void BulkOperationsHelper_AddSqlParamsForUpdateQuery_GetsTypeAndValue()
{
Book book = new Book()
{
ISBN = "Some ISBN",
Price = 23.99M,
BestSeller = true
};
HashSet <string> columns = new HashSet <string>();
columns.Add("ISBN");
columns.Add("Price");
columns.Add("BestSeller");
List <SqlParameter> sqlParams = new List <SqlParameter>();
BulkOperationsHelper.AddSqlParamsForQuery(sqlParams, columns, book);
Assert.AreEqual(3, sqlParams.Count);
}
/// <summary>
/// Commits a transaction to database asynchronously. A valid setup must exist for the operation to be
/// successful.
/// </summary>
/// <param name="connection"></param>
/// <returns></returns>
/// <exception cref="IdentityException"></exception>
public async Task <int> CommitAsync(SqlConnection connection)
{
int affectedRows = 0;
if (_singleEntity == null)
{
return(affectedRows);
}
if (connection.State != ConnectionState.Open)
{
await connection.OpenAsync();
}
try
{
BulkOperationsHelper.AddSqlParamsForQuery(_propertyInfoList, _sqlParams, _columns, _singleEntity, _identityColumn, _outputIdentity, _customColumnMappings);
BulkOperationsHelper.DoColumnMappings(_customColumnMappings, _columns);
SqlCommand command = connection.CreateCommand();
command.Connection = connection;
string fullQualifiedTableName = BulkOperationsHelper.GetFullQualifyingTableName(connection.Database, _schema,
_tableName);
StringBuilder sb = new StringBuilder();
sb.Append($"{BulkOperationsHelper.BuildInsertIntoSet(_columns, _identityColumn, fullQualifiedTableName)} " +
$"VALUES{BulkOperationsHelper.BuildValueSet(_columns, _identityColumn)} ");
if (_outputIdentity == ColumnDirectionType.InputOutput)
{
sb.Append($"SET @{_identityColumn}=SCOPE_IDENTITY();");
}
command.CommandText = sb.ToString();
if (_sqlParams.Count > 0)
{
command.Parameters.AddRange(_sqlParams.ToArray());
}
affectedRows = await command.ExecuteNonQueryAsync();
if (_outputIdentity == ColumnDirectionType.InputOutput)
{
foreach (var x in _sqlParams)
{
if (x.Direction == ParameterDirection.InputOutput &&
x.ParameterName == $"@{_identityColumn}")
{
PropertyInfo propertyInfo = _singleEntity.GetType().GetProperty(_identityColumn);
propertyInfo.SetValue(_singleEntity, x.Value);
break;
}
}
}
return(affectedRows);
}
catch (SqlException e)
{
for (int i = 0; i < e.Errors.Count; i++)
{
// Error 8102 and 544 is identity error.
if (e.Errors[i].Number == 544 || e.Errors[i].Number == 8102)
{
// Expensive but neccessary to inform user of an important configuration setup.
throw new IdentityException(e.Errors[i].Message);
}
}
throw;
}
}