/// <summary>
/// Función que carga la relacion Category desde la base de datos
/// </summary>
/// <param name="serviceCategory">Padre: ServiceCategoryEntity</param>
/// <exception cref="ArgumentNullException">
/// Si <paramref name="serviceCategory"/> no es un <c>ServiceCategoryEntity</c>.
/// </exception>
public void LoadRelationCategory(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
bool closeConnection = false;
try
{
// Crea una nueva conexión si es necesario
if (dbConnection == null || dbConnection.State.CompareTo(ConnectionState.Closed) == 0)
{
closeConnection = true;
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
}
// Crea un nuevo command
string cmdText = "SELECT idCategory FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
SqlCeCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
SqlCeParameter parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
// Establece los valores a los parametros del command
parameter.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameter);
// Execute commands
object idRelation = sqlCommand.ExecuteScalar();
if (idRelation != null && ((int)idRelation) > 0)
{
// Create data access objects and set connection objects
CategoryDataAccess categoryDataAccess = new CategoryDataAccess();
categoryDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
// Carga los objetos relacionados
serviceCategory.Category = categoryDataAccess.Load(((int)idRelation), true, scope);
}
}
catch (DbException dbException)
{
// Relanza una excepcion personalizada
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Cierra la conexión si fue inicializada
if (closeConnection)
{
dbConnection.Close();
}
}
}
/// <summary>
/// Function to Load the relation Category from database.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity parent</param>
/// <exception cref="ArgumentNullException">
/// if <paramref name="serviceCategory"/> is not a <c>ServiceCategoryEntity</c>.
/// </exception>
public void LoadRelationCategory(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
bool closeConnection = false;
try
{
// Create a new connection if needed
if (dbConnection == null || dbConnection.State.CompareTo(ConnectionState.Closed) == 0)
{
closeConnection = true;
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
}
// Create a command
string cmdText = "SELECT idCategory FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
IDbDataParameter parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
// Set command parameters values
parameter.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameter);
// Execute commands
object idRelation = sqlCommand.ExecuteScalar();
if (idRelation != null && ((int)idRelation) > 0)
{
// Create data access objects and set connection objects
CategoryDataAccess categoryDataAccess = new CategoryDataAccess();
categoryDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
// Load related object
serviceCategory.Category = categoryDataAccess.Load(((int)idRelation), true, scope);
}
}
catch (DbException dbException)
{
// Catch and rethrow as custom exception
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Close connection if initiated by me
if (closeConnection)
{
dbConnection.Close();
}
}
}
private void FillSaveParameters(ServiceCategoryEntity serviceCategory, IDbCommand sqlCommand)
{
IDbDataParameter parameter;
parameter = dataAccess.GetNewDataParameter("@idService", DbType.Int32);
parameter.Value = serviceCategory.IdService;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idCategory", DbType.Int32);
parameter.Value = serviceCategory.IdCategory;
sqlCommand.Parameters.Add(parameter);
}
/// <summary>
/// Retorna las categorias seleccionadas para el servicio.
/// </summary>
/// <returns>Categorias del servicio</returns>
public Collection <ServiceCategoryEntity> SaveServiceCategories()
{
serviceEntity.ServiceCategory.Clear();
CategoryEntity category;
Collection <ServiceCategoryEntity> list = new Collection <ServiceCategoryEntity>();
foreach (TreeNode node in treeView.CheckedNodes)
{
if (storeCategories.TryGetValue(node.Text, out category))
{
if (category.Name == node.Text)
{
ServiceCategoryEntity serviceCategory = new ServiceCategoryEntity();
serviceCategory.Category = category;
list.Add(serviceCategory);
}
}
}
return(list);
}
/// <summary>
/// Actualiza la base de datos para reflejar el estado actual de la lista.
/// </summary>
/// <param name="collectionDataAccess">El IDataAccess de la relación</param>
/// <param name="parent">El objeto padre</param>
/// <param name="collection">una colección de items</param>
/// <param name="isNewParent">Si el padre es un objeto nuevo</param>
/// <param name="scope">Estructura de datos interna para evitar problemas de referencia circular</param>
/// <exception cref="UtnEmallDataAccessException">
/// Si una DbException ocurre cuando se accede a la base de datos
/// </exception>
private void SaveServiceCategoryCollection(ServiceCategoryDataAccess collectionDataAccess, ServiceEntity parent, Collection <ServiceCategoryEntity> collection, bool isNewParent, Dictionary <string, IEntity> scope)
{
if (collection == null)
{
return;
}
// Establece los objetos de conexión
collectionDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
// Establece la relación padre/hijo
for (int i = 0; i < collection.Count; i++)
{
bool changed = collection[i].Changed;
collection[i].Service = parent;
collection[i].Changed = changed;
}
// Si el padre es nuevo guarda todos los hijos, sino controla las diferencias con la base de datos.
if (isNewParent)
{
for (int i = 0; i < collection.Count; i++)
{
collectionDataAccess.Save(collection[i], scope);
}
}
else
{
// Controla los hijos que ya no son parte de la relación
string idList = "0";
if (collection.Count > 0)
{
idList = "" + collection[0].Id;
}
for (int i = 1; i < collection.Count; i++)
{
idList += ", " + collection[i].Id;
}
// Retorna los ids que ya no existe en la colección actual
string command = "SELECT idServiceCategory FROM [ServiceCategory] WHERE idService = @idService AND idServiceCategory NOT IN (" + idList + ")";
SqlCeCommand sqlCommand = dataAccess.GetNewCommand(command, dbConnection, dbTransaction);
SqlCeParameter sqlParameterId = dataAccess.GetNewDataParameter("@idService", DbType.Int32);
sqlParameterId.Value = parent.Id;
sqlCommand.Parameters.Add(sqlParameterId);
IDataReader reader = sqlCommand.ExecuteReader();
Collection <ServiceCategoryEntity> objectsToDelete = new Collection <ServiceCategoryEntity>();
// Inserta los id en una lista
List <int> listId = new List <int>();
while (reader.Read())
{
listId.Add(reader.GetInt32(0));
}
reader.Close();
// Carga los items a ser eliminados
foreach (int id in listId)
{
ServiceCategoryEntity entityToDelete = collectionDataAccess.Load(id, scope);
objectsToDelete.Add(entityToDelete);
}
// Esto se realiza porque el reader debe ser cerrado despues de eliminar las entidades
for (int i = 0; i < objectsToDelete.Count; i++)
{
collectionDataAccess.Delete(objectsToDelete[i], scope);
}
System.DateTime timestamp;
// Controla todas las propiedades de los items de la colección
// para verificar si alguno cambio
for (int i = 0; i < collection.Count; i++)
{
ServiceCategoryEntity item = collection[i];
if (!item.Changed && !item.IsNew)
{
// Crea el command
string sql = "SELECT timestamp FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
SqlCeCommand sqlCommandTimestamp = dataAccess.GetNewCommand(sql, dbConnection, dbTransaction);
// Establece los datos a los parametros del command
SqlCeParameter sqlParameterIdPreference = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
sqlParameterIdPreference.Value = item.Id;
sqlCommandTimestamp.Parameters.Add(sqlParameterIdPreference);
timestamp = ((System.DateTime)sqlCommandTimestamp.ExecuteScalar());
if (item.Timestamp != timestamp)
{
item.Changed = true;
}
}
// Guarda el item si cambio o es nuevo
if (item.Changed || item.IsNew)
{
collectionDataAccess.Save(item);
}
}
}
}
/// <summary>
/// Carga el contenido del formulario en un objeto de entidad
/// </summary>
private void Load()
{
if (mode == EditionMode.Add)
{
service = new ServiceEntity();
}
service.Name = TxtName.Text.Trim();
service.Description = TxtDescription.Text.Trim();
service.StartDate = StartDate.Date;
service.StopDate = StopDate.Date;
if (storeCombo.SelectedIndex == 0)
{
service.Store = null;
}
else
{
service.Store = stores[(string)storeCombo.SelectedItem];
}
System.Collections.Generic.List <ServiceCategoryEntity> toRemove = new System.Collections.Generic.List <ServiceCategoryEntity>();
// Si las categorías fueron modificadas
if (this.categoriesLoaded)
{
// se recorren todas las categorías de servicio
foreach (ServiceCategoryEntity serviceCategory in service.ServiceCategory)
{
bool exists = false;
foreach (CategoryEntity category in categoryWindow.Selected)
{
// No se elimina una categoría ya asignada
if (serviceCategory.Category.Name == category.Name)
{
exists = true;
break;
}
}
if (!exists)
{
toRemove.Add(serviceCategory);
}
}
foreach (ServiceCategoryEntity serviceCategory in toRemove)
{
service.ServiceCategory.Remove(serviceCategory);
}
// recorremos todas las categorías
foreach (CategoryEntity category in categoryWindow.Selected)
{
bool exists = false;
foreach (ServiceCategoryEntity serviceCategory in service.ServiceCategory)
{
if (serviceCategory.Category.Name == category.Name)
{
exists = true;
break;
}
}
if (!exists)
{
ServiceCategoryEntity newServiceCategory = new ServiceCategoryEntity();
newServiceCategory.Category = category;
service.ServiceCategory.Add(newServiceCategory);
}
}
}
}
/// <summary>
/// Function to load a ServiceCategoryEntity from database.
/// </summary>
/// <param name="id">The ID of the record to load</param>
/// <param name="loadRelation">if is true load the relation</param>
/// <param name="scope">Internal structure used to avoid circular reference locks, must be provided if calling from other data access object</param>
/// <returns>The entity instance</returns>
/// <exception cref="UtnEmallDataAccessException">
/// If a DbException occurs while accessing the database.
/// </exception>
public ServiceCategoryEntity Load(int id, bool loadRelation, Dictionary <string, IEntity> scope)
{
// Build a key for internal scope object
string scopeKey = id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
if (scope != null)
{
// If scope contains the object it was already loaded,
// return it to avoid circular references
if (scope.ContainsKey(scopeKey))
{
return((ServiceCategoryEntity)scope[scopeKey]);
}
}
else
{
// If there isn't a current scope create one
scope = new Dictionary <string, IEntity>();
}
ServiceCategoryEntity serviceCategory = null;
// Check if the entity was already loaded by current data access object
// and return it if that is the case
if (inMemoryEntities.ContainsKey(id))
{
serviceCategory = inMemoryEntities[id];
// Add current object to current load scope
scope.Add(scopeKey, serviceCategory);
}
else
{
bool closeConnection = false;
try
{
// Open a new connection if it isn't on a transaction
if (dbConnection == null || dbConnection.State.CompareTo(ConnectionState.Closed) == 0)
{
closeConnection = true;
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
}
string cmdText = "SELECT idServiceCategory, idService, idCategory, timestamp FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
// Create the command
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
// Create the Id parameter for the query
IDbDataParameter parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameter.Value = id;
sqlCommand.Parameters.Add(parameter);
// Use a DataReader to get data from db
IDataReader reader = sqlCommand.ExecuteReader();
serviceCategory = new ServiceCategoryEntity();
if (reader.Read())
{
// Load fields of entity
serviceCategory.Id = reader.GetInt32(0);
serviceCategory.IdService = reader.GetInt32(1);
serviceCategory.IdCategory = reader.GetInt32(2);
// Add current object to the scope
scope.Add(scopeKey, serviceCategory);
// Add current object to cache of loaded entities
inMemoryEntities.Add(serviceCategory.Id, serviceCategory);
// Read the timestamp and set new and changed properties
serviceCategory.Timestamp = reader.GetDateTime(3);
serviceCategory.IsNew = false;
serviceCategory.Changed = false;
// Close the reader
reader.Close();
// Load related objects if required
if (loadRelation)
{
LoadRelationCategory(serviceCategory, scope);
}
}
else
{
reader.Close();
}
}
catch (DbException dbException)
{
// Catch DBException and rethrow as custom exception
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Close connection if it was opened by ourself
if (closeConnection)
{
dbConnection.Close();
}
}
}
// Return the loaded entity
return(serviceCategory);
}
/// <summary>
/// Function to Delete a ServiceCategoryEntity from database.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity to delete</param>
/// <param name="scope">Internal structure to avoid circular reference locks. Must provide an instance while calling from other data access object.</param>
/// <exception cref="ArgumentNullException">
/// If <paramref name="serviceCategory"/> is not a <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Delete(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
try
{
// Open connection and initialize a transaction if needed
if (!isGlobalTransaction)
{
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
dbTransaction = dbConnection.BeginTransaction();
}
// Reload the entity to ensure deletion of older data
serviceCategory = this.Load(serviceCategory.Id, true);
if (serviceCategory == null)
{
throw new UtnEmallDataAccessException("Error retrieving data while trying to delete.");
}
// Create a command for delete
string cmdText = "DeleteServiceCategory";
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
sqlCommand.CommandType = CommandType.StoredProcedure;
// Add values to parameters
IDbDataParameter parameterID = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameterID.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameterID);
// Execute the command
sqlCommand.ExecuteNonQuery();
// Delete related objects
// Commit transaction if is mine
if (!isGlobalTransaction)
{
dbTransaction.Commit();
}
// Remove entity from loaded objects
inMemoryEntities.Remove(serviceCategory.Id);
// Remove entity from current internal scope
if (scope != null)
{
string scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
scope.Remove(scopeKey);
}
}
catch (DbException dbException)
{
// Rollback transaction
if (!isGlobalTransaction)
{
dbTransaction.Rollback();
}
// Rethrow as custom exception
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Close connection if it was initiated by this instance
if (!isGlobalTransaction)
{
dbConnection.Close();
dbConnection = null;
dbTransaction = null;
}
}
}
/// <summary>
/// Function to Delete a ServiceCategoryEntity from database.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity to delete</param>
/// <exception cref="ArgumentNullException">
/// If <paramref name="serviceCategory"/> is not a <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Delete(ServiceCategoryEntity serviceCategory)
{
Delete(serviceCategory, null);
}
/// <summary>
/// Function to Save a ServiceCategoryEntity in the database.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity to save</param>
/// <param name="scope">Interna structure to avoid circular reference locks. Provide an instance when calling from other data access object.</param>
/// <exception cref="ArgumentNullException">
/// If <paramref name="serviceCategory"/> is not a <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Save(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
// Create a unique key to identify the object in the internal scope
string scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
if (scope != null)
{
// If it's on the scope return it, don't save again
if (scope.ContainsKey(scopeKey))
{
return;
}
}
else
{
// Create a new scope if it's not provided
scope = new Dictionary <string, IEntity>();
}
try
{
// Open a DbConnection and a new transaction if it isn't on a higher level one
if (!isGlobalTransaction)
{
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
dbTransaction = dbConnection.BeginTransaction();
}
string commandName = "";
bool isUpdate = false;
// Check if it is an insert or update command
if (serviceCategory.IsNew || !DataAccessConnection.ExistsEntity(serviceCategory.Id, "ServiceCategory", "idServiceCategory", dbConnection, dbTransaction))
{
commandName = "SaveServiceCategory";
}
else
{
isUpdate = true;
commandName = "UpdateServiceCategory";
}
// Create a db command
IDbCommand sqlCommand = dataAccess.GetNewCommand(commandName, dbConnection, dbTransaction);
sqlCommand.CommandType = CommandType.StoredProcedure;
// Add parameters values to current command
IDbDataParameter parameter;
if (isUpdate)
{
parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameter.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameter);
}
FillSaveParameters(serviceCategory, sqlCommand);
// Execute the command
if (isUpdate)
{
sqlCommand.ExecuteNonQuery();
}
else
{
IDbDataParameter parameterIdOutput = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameterIdOutput.Direction = ParameterDirection.ReturnValue;
sqlCommand.Parameters.Add(parameterIdOutput);
sqlCommand.ExecuteNonQuery();
serviceCategory.Id = Convert.ToInt32(parameterIdOutput.Value, NumberFormatInfo.InvariantInfo);
}
scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
// Add entity to current internal scope
scope.Add(scopeKey, serviceCategory);
// Save collections of related objects to current entity
// Save objects related to current entity
// Update
// Close transaction if initiated by me
if (!isGlobalTransaction)
{
dbTransaction.Commit();
}
// Update new and changed flags
serviceCategory.IsNew = false;
serviceCategory.Changed = false;
}
catch (DbException dbException)
{
// Rollback transaction
if (!isGlobalTransaction)
{
dbTransaction.Rollback();
}
// Rethrow as custom exception
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Close connection if initiated by me
if (!isGlobalTransaction)
{
dbConnection.Close();
dbConnection = null;
dbTransaction = null;
}
}
}
/// <summary>
/// Function to Save a ServiceCategoryEntity in the database.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity to save</param>
/// <exception cref="ArgumentNullException">
/// if <paramref name="serviceCategory"/> is not a <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Save(ServiceCategoryEntity serviceCategory)
{
Save(serviceCategory, null);
}
/// <summary>
/// Función para cargar un ServiceCategoryEntity desde la base de datos.
/// </summary>
/// <param name="id">El id del registro a cargar</param>
/// <param name="loadRelation">Si es true carga las relaciones</param>
/// <param name="scope">Estructura interna usada para evitar la referencia circular, debe ser proveida si es llamada desde otro data access</param>
/// <returns>La instancia de la entidad</returns>
/// <exception cref="UtnEmallDataAccessException">
/// Si una DbException ocurre mientras se accede a la base de datos
/// </exception>
public ServiceCategoryEntity Load(int id, bool loadRelation, Dictionary <string, IEntity> scope)
{
// Crea una clave para el objeto de scope interno
string scopeKey = id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
if (scope != null)
{
// Si el scope contiene el objeto, este ya fue cargado
// retorna el objeto situado en el scope para evitar referencias circulares
if (scope.ContainsKey(scopeKey))
{
return((ServiceCategoryEntity)scope[scopeKey]);
}
}
else
{
// Si no existe un scope, crear uno
scope = new Dictionary <string, IEntity>();
}
ServiceCategoryEntity serviceCategory = null;
// Chequear si la entidad fue ya cargada por el data access actual
// y retornar si fue ya cargada
if (inMemoryEntities.ContainsKey(id))
{
serviceCategory = inMemoryEntities[id];
// Agregar el objeto actual al scope
scope.Add(scopeKey, serviceCategory);
}
else
{
bool closeConnection = false;
try
{
// Abrir una nueva conexión si no es una transaccion
if (dbConnection == null || dbConnection.State.CompareTo(ConnectionState.Closed) == 0)
{
closeConnection = true;
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
}
string cmdText = "SELECT idServiceCategory, idService, idCategory, timestamp FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
// Crea el command
SqlCeCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
// Crear el parametro id para la consulta
SqlCeParameter parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameter.Value = id;
sqlCommand.Parameters.Add(parameter);
// Usar el datareader para cargar desde la base de datos
IDataReader reader = sqlCommand.ExecuteReader();
serviceCategory = new ServiceCategoryEntity();
if (reader.Read())
{
// Cargar las filas de la entidad
serviceCategory.Id = reader.GetInt32(0);
serviceCategory.IdService = reader.GetInt32(1);
serviceCategory.IdCategory = reader.GetInt32(2);
// Agregar el objeto actual al scope
scope.Add(scopeKey, serviceCategory);
// Agregar el objeto a la cahce de entidades cargadas
inMemoryEntities.Add(serviceCategory.Id, serviceCategory);
// Lee el timestamp y establece las propiedades nuevo y cambiado
serviceCategory.Timestamp = reader.GetDateTime(3);
serviceCategory.IsNew = false;
serviceCategory.Changed = false;
// Cerrar el Reader
reader.Close();
// Carga los objetos relacionadoss if required
if (loadRelation)
{
LoadRelationCategory(serviceCategory, scope);
}
}
else
{
reader.Close();
}
}
catch (DbException dbException)
{
// Relanza la excepcion como una excepcion personalizada
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Cierra la conexión si fue creada dentro de la Función
if (closeConnection)
{
dbConnection.Close();
}
}
}
// Retorna la entidad cargada
return(serviceCategory);
}
/// <summary>
/// Función que elimina un ServiceCategoryEntity de la base de datos.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity a eliminar</param>
/// <param name="scope">Estructura interna para evitar problemas de referencia circular.</param>
/// <exception cref="ArgumentNullException">
/// Si <paramref name="serviceCategory"/> no es un <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// Si una DbException ocurre cuando se accede a la base de datos
/// </exception>
public void Delete(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
try
{
// Abrir una nueva conexión e inicializar una transacción si es necesario
if (!isGlobalTransaction)
{
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
dbTransaction = dbConnection.BeginTransaction();
}
// Carga la entidad para garantizar eliminar todos los datos antiguos.
serviceCategory = this.Load(serviceCategory.Id, true);
if (serviceCategory == null)
{
throw new UtnEmallDataAccessException("Error al recuperar datos al intentar eliminar.");
}
// Crea un nuevo command para eliminar
string cmdText = "DELETE FROM [ServiceCategory] WHERE idServiceCategory = @idServiceCategory";
SqlCeCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
// Agrega los valores de los parametros
SqlCeParameter parameterID = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameterID.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameterID);
// Ejecuta el comando
sqlCommand.ExecuteNonQuery();
// Elimina los objetos relacionados
// Confirma la transacción si se inicio dentro de la función
if (!isGlobalTransaction)
{
dbTransaction.Commit();
}
// Eliminamos la entidad de la lista de entidades cargadas en memoria
inMemoryEntities.Remove(serviceCategory.Id);
// Eliminamos la entidad del scope
if (scope != null)
{
string scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
scope.Remove(scopeKey);
}
}
catch (DbException dbException)
{
// Anula la transaccion
if (!isGlobalTransaction)
{
dbTransaction.Rollback();
}
// Relanza una excepcion personalizada
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Cierra la conexión si fue abierta dentro de la Función
if (!isGlobalTransaction)
{
dbConnection.Close();
dbConnection = null;
dbTransaction = null;
}
}
}
/// <summary>
/// Función que guarda un ServiceCategoryEntity en la base de datos.
/// </summary>
/// <param name="serviceCategory">ServiceCategoryEntity a guardar</param>
/// <param name="scope">Estructura interna para evitar problemas con referencias circulares</param>
/// <exception cref="ArgumentNullException">
/// Si <paramref name="serviceCategory"/> no es un <c>ServiceCategoryEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// Si una DbException ocurre cuando se accede a la base de datos
/// </exception>
public void Save(ServiceCategoryEntity serviceCategory, Dictionary <string, IEntity> scope)
{
if (serviceCategory == null)
{
throw new ArgumentException("The argument can't be null");
}
// Crear una clave unica para identificar el objeto dentro del scope interno
string scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
if (scope != null)
{
// Si se encuentra dentro del scope lo retornamos
if (scope.ContainsKey(scopeKey))
{
return;
}
}
else
{
// Crea un nuevo scope si este no fue enviado
scope = new Dictionary <string, IEntity>();
}
try
{
// Crea una nueva conexion y una nueva transaccion si no hay una a nivel superior
if (!isGlobalTransaction)
{
dbConnection = dataAccess.GetNewConnection();
dbConnection.Open();
dbTransaction = dbConnection.BeginTransaction();
}
string commandName = "";
bool isUpdate = false;
// Verifica si se debe hacer una actualización o una inserción
if (serviceCategory.IsNew || !DataAccessConnection.ExistsEntity(serviceCategory.Id, "ServiceCategory", "idServiceCategory", dbConnection, dbTransaction))
{
commandName = "INSERT INTO [ServiceCategory] (idServiceCategory, IDSERVICE, IDCATEGORY, [TIMESTAMP] ) VALUES( @idServiceCategory, @idService,@idCategory, GETDATE()); ";
}
else
{
isUpdate = true;
commandName = "UPDATE [ServiceCategory] SET idService = @idService, idCategory = @idCategory , timestamp=GETDATE() WHERE idServiceCategory = @idServiceCategory";
}
// Se crea un command
SqlCeCommand sqlCommand = dataAccess.GetNewCommand(commandName, dbConnection, dbTransaction);
// Agregar los parametros del command .
SqlCeParameter parameter;
if (!isUpdate && serviceCategory.Id == 0)
{
serviceCategory.Id = DataAccessConnection.GetNextId("idServiceCategory", "ServiceCategory", dbConnection, dbTransaction);
}
parameter = dataAccess.GetNewDataParameter("@idServiceCategory", DbType.Int32);
parameter.Value = serviceCategory.Id;
sqlCommand.Parameters.Add(parameter);
FillSaveParameters(serviceCategory, sqlCommand);
// Ejecutar el command
sqlCommand.ExecuteNonQuery();
scopeKey = serviceCategory.Id.ToString(NumberFormatInfo.InvariantInfo) + "ServiceCategory";
// Agregar la entidad al scope actual
scope.Add(scopeKey, serviceCategory);
// Guarda las colecciones de objetos relacionados.
// Guardar objetos relacionados con la entidad actual
// Actualizar
// Cierra la conexión si fue abierta en la función
if (!isGlobalTransaction)
{
dbTransaction.Commit();
}
// Actualizar los campos new y changed
serviceCategory.IsNew = false;
serviceCategory.Changed = false;
}
catch (DbException dbException)
{
// Anula la transaccion
if (!isGlobalTransaction)
{
dbTransaction.Rollback();
}
// Relanza una excepcion personalizada
throw new UtnEmallDataAccessException(dbException.Message, dbException);
}
finally
{
// Cierra la conexión si fue inicializada
if (!isGlobalTransaction)
{
dbConnection.Close();
dbConnection = null;
dbTransaction = null;
}
}
}
