/// <summary>
/// Deletes an existing data from the database in an asynchronous way.
/// </summary>
/// <param name="connection">The connection object to be used.</param>
/// <param name="request">The actual <see cref="DeleteRequest"/> object.</param>
/// <param name="param">The mapped object parameters.</param>
/// <param name="commandTimeout">The command timeout in seconds to be used.</param>
/// <param name="transaction">The transaction to be used.</param>
/// <param name="trace">The trace object to be used.</param>
/// <returns>The number of rows affected by the execution.</returns>
internal static async Task <int> DeleteAsyncInternalBase(this IDbConnection connection,
DeleteRequest request,
object param,
int?commandTimeout = null,
IDbTransaction transaction = null,
ITrace trace = null)
{
// Validate
InvokeValidatorValidateDeleteAsync(connection);
// Variables
var commandType = CommandType.Text;
var commandText = CommandTextCache.GetDeleteText(request);
// Before Execution
if (trace != null)
{
var cancellableTraceLog = new CancellableTraceLog(commandText, param, null);
trace.BeforeDelete(cancellableTraceLog);
if (cancellableTraceLog.IsCancelled)
{
if (cancellableTraceLog.IsThrowException)
{
throw new CancelledExecutionException(commandText);
}
return(0);
}
commandText = (cancellableTraceLog.Statement ?? commandText);
param = (cancellableTraceLog.Parameter ?? param);
}
// Before Execution Time
var beforeExecutionTime = DateTime.UtcNow;
// Actual Execution
var result = await ExecuteNonQueryAsyncInternal(connection : connection,
commandText : commandText,
param : param,
commandType : commandType,
commandTimeout : commandTimeout,
transaction : transaction,
skipCommandArrayParametersCheck : true);
// After Execution
if (trace != null)
{
trace.AfterDelete(new TraceLog(commandText, param, result,
DateTime.UtcNow.Subtract(beforeExecutionTime)));
}
// Result
return(result);
}