public TEntity Load(object id)
{
IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
string tableName = entityType.Name.ToLower();
dbCommand.CommandText = string.Format(selectSql, tableName, idPropertyName.ToLower());
DbCommandHelper.AddParameter(dbCommand, "id", id);
IDataReader dataReader = dbCommand.ExecuteReader();
dataReader.Read();
TEntity entity = Activator.CreateInstance <TEntity>();
foreach (string propertyName in entityPropertyNames)
{
object value = dataReader[propertyName.ToLower()];
if (value == DBNull.Value)
{
value = null;
}
entityType.GetProperty(propertyName).SetValue(entity, value);
}
dataReader.Close();
return(entity);
}
public void Delete(object id)
{
string tableName = entityType.Name.ToLower();
IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
dbCommand.CommandText = string.Format(deleteSql, tableName, idPropertyName.ToLower());
DbCommandHelper.AddParameter(dbCommand, "id", id);
dbCommand.ExecuteNonQuery();
}
private static void update(Categoria categoria)
{
IDbCommand dbCommand = App.Instance.Connection.CreateCommand();
dbCommand.CommandText = "update categoria set nombre=@nombre where id = @id";
DbCommandHelper.AddParameter(dbCommand, "id", categoria.Id);
DbCommandHelper.AddParameter(dbCommand, "nombre", categoria.Nombre);
dbCommand.ExecuteNonQuery();
}
public void insert(TEntity entity)
{
IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
//insert into categoria (nombre,precio,categoria) values (@nombre, @precio, @categoria)
//FORMAS DE REALIZAR INSERT
//List<string> fieldsWithoutID = entityPropertyNames.GetRange(1, entityPropertyNames.Count -1);
//List<string> fieldsWithoutID = new List<string>(entityPropertyNames);
//fieldsWithoutID.RemoveAt(0);
List <string> fieldsWithoutId = new List <string>();
List <string> fieldParameterPairs = new List <string>();
for (int index = 1; index < fieldsWithoutId.Count; index++)
{
fieldsWithoutId.Add(fieldsWithoutId[index]);
fieldParameterPairs.Add("@" + entityPropertyNames[index].ToLower());
}
//List<string> fieldsWithoutID = new List<string>();
//foreach(string item in entityPropertyNames){
// if (item != "id")
// fieldsWithoutID.Add(item);
//}
//List<string> fieldsWithoutId = entityPropertyNames.FindAll(item => item != "id");
// fieldsWithoutId.ForEach(item => item = "0" + item);
//List<string> fieldParameterPairs = entityPropertyNames.FindAll(item => item != "id");
//fieldParameterPairs.ForEach(item => item = "=@" + item);
string fieldNamesCsv = string.Join(", ", fieldsWithoutId).ToLower();
string parametersCsv = string.Join(", ", fieldParameterPairs).ToLower();
string tableName = entityType.Name.ToLower();
dbCommand.CommandText = string.Format(insertSql, tableName, fieldNamesCsv, parametersCsv);
foreach (string fieldname in fieldsWithoutId)
{
object value = entityType.GetProperty(fieldname).GetValue(entity);
DbCommandHelper.AddParameter(dbCommand, fieldname, value);
}
dbCommand.ExecuteNonQuery();
//IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
//dbCommand.CommandText = string.Format(insertSql, tableName, fieldNamesCsv);
}
private static Categoria load(object id)
{
IDbCommand dbCommand = App.Instance.Connection.CreateCommand();
dbCommand.CommandText = "select * from categoria where id = @id";
DbCommandHelper.AddParameter(dbCommand, "id", id);
IDataReader dataReader = dbCommand.ExecuteReader();
dataReader.Read();
string nombre = (string)dataReader["nombre"];
dataReader.Close();
Categoria categoria = new Categoria();
categoria.Id = Convert.ToInt64(id);
categoria.Nombre = nombre;
return(categoria);
}
protected void Insert(TEntity entity)
{
IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
List <string> insertFieldNames = new List <string>();
List <string> parameterNames = new List <string>();
insertFieldNames.ForEach(item => parameterNames.Add("@" + item));
string tableName = entityType.Name.ToLower();
string insertFieldNameCsv = string.Join(",", insertFieldNames).ToLower();
string parameterNamesCsv = string.Join(", ", parameterNames).ToLower();
dbCommand.CommandText = string.Format(insertSql, tableName, insertFieldNameCsv, parameterNamesCsv);
foreach (string fieldName in insertFieldNames)
{
object value = entityType.GetProperty(fieldName).GetValue(entity);
DbCommandHelper.AddParameter(dbCommand, fieldName, value);
}
}
protected void insert(TEntity entity)
{
IDbCommand dbCommand = App.Instance.DbConnection.CreateCommand();
List <string> insertPropertyNames = entityPropertyNames.FindAll(item => item != idPropertyName);
List <string> parameterNames = new List <string>();
insertPropertyNames.ForEach(item => parameterNames.Add("@" + item));
string tableName = entityType.Name.ToLower();
string insertFieldNamesCsv = string.Join(", ", insertPropertyNames).ToLower();
string parameterNamesCsv = string.Join(", ", parameterNames).ToLower();
dbCommand.CommandText = string.Format(insertSql, tableName, insertFieldNamesCsv, parameterNamesCsv);
//DbCommandHelper.AddParameter(dbCommand, "nombre", categoria.Nombre);
foreach (string propertyName in insertPropertyNames)
{
object value = entityType.GetProperty(propertyName).GetValue(entity);
DbCommandHelper.AddParameter(dbCommand, propertyName, value);
}
dbCommand.ExecuteNonQuery();
}
