public async Task <T> ExecuteScalarAsync <T>(string connection, string sql, object parameters)
{
T result = default;
using (var c = new MySqlData.MySqlConnection(connection))
{
_log.LogTrace <MySqlQuery>($"EXECUTE: {sql}. Parameters: {JsonConvert.SerializeObject(parameters)}");
await c.OpenAsync();
result = await c.ExecuteScalarAsync <T>(sql, parameters);
await c.CloseAsync();
}
return(result);
}
public void Insert <T>(T obj, Definition definition) where T : class
{
var connection = definition.Connection;
if (string.IsNullOrEmpty(connection))
{
connection = _connection;
}
using (var c = new MySqlData.MySqlConnection(connection))
{
c.Open();
//NOTE: we can not use DapperExtensions here as they do not support cancellation tokens
var sql = _sql.Insert(_sql.Configuration.GetMap <T>());
var command = new CommandDefinition(sql, obj, cancellationToken: definition.Token, commandTimeout: definition.CommandTimeout);
_log.LogTrace <MySqlQuery>($"INSERT: {definition.Sql}. Connection: {connection}. Object: {JsonConvert.SerializeObject(obj)}. Parameters: {JsonConvert.SerializeObject(definition.Parameters)}");
c.ExecuteScalarAsync <T>(command).GetAwaiter().GetResult();
}
}
public T ExecuteScalar <T>(Definition definition)
{
var connection = definition.Connection;
if (string.IsNullOrEmpty(connection))
{
connection = _connection;
}
T result = default;
using (var c = new MySqlData.MySqlConnection(connection))
{
_log.LogTrace <MySqlQuery>($"EXECUTE: {definition.Sql}. Parameters: {JsonConvert.SerializeObject(definition.Parameters)}");
c.Open();
result = c.ExecuteScalarAsync <T>(new CommandDefinition(definition.Sql, definition.Parameters, cancellationToken: definition.Token, commandTimeout: definition.CommandTimeout)).GetAwaiter().GetResult();
c.Close();
}
return(result);
}
public void Delete <T>(T obj, Definition definition) where T : class, IModel
{
var connection = definition.Connection;
if (string.IsNullOrEmpty(connection))
{
connection = _connection;
}
using (var c = new MySqlData.MySqlConnection(connection))
{
c.Open();
//NOTE: we can not use DapperExtensions here as they do not support cancellation tokens
var sql = _sql.Delete(_sql.Configuration.GetMap <T>(), definition.Predicate, definition.Dictionary);
var parameters = new DynamicParameters();
var map = _sql.Configuration.GetMap <T>();
var columns = map.Properties.Where(p => !(p.Ignored || p.IsReadOnly || p.KeyType == KeyType.Identity));
foreach (var property in ReflectionHelper.GetObjectValues(obj).Where(property => columns.Any(c => c.Name == property.Key)))
{
parameters.Add(property.Key, property.Value);
}
foreach (var parameter in definition.Dictionary)
{
parameters.Add(parameter.Key, parameter.Value);
}
var command = new CommandDefinition(sql, parameters, cancellationToken: definition.Token, commandTimeout: definition.CommandTimeout);
_log.LogTrace <MySqlQuery>($"DELETE: {definition.Sql}. Connection: {connection}. Object: {JsonConvert.SerializeObject(obj)}. Parameters: {JsonConvert.SerializeObject(definition.Parameters)}");
var result = c.ExecuteScalarAsync <T>(command).GetAwaiter().GetResult();
}
}
