private void FillSaveParameters(ConnectionPointEntity connectionPoint, IDbCommand sqlCommand)
{
IDbDataParameter parameter;
parameter = dataAccess.GetNewDataParameter("@connectionType", DbType.Int32);
parameter.Value = connectionPoint.ConnectionType;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@xCoordinateRelativeToParent", DbType.Decimal);
parameter.Value = connectionPoint.XCoordinateRelativeToParent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@yCoordinateRelativeToParent", DbType.Decimal);
parameter.Value = connectionPoint.YCoordinateRelativeToParent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idParentComponent", DbType.Int32);
parameter.Value = connectionPoint.IdParentComponent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idComponent", DbType.Int32);
parameter.Value = connectionPoint.IdComponent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idConnectionWidget", DbType.Int32);
parameter.Value = connectionPoint.IdConnectionWidget;
sqlCommand.Parameters.Add(parameter);
}
/// <summary>
/// Convierte un ConnectionPointEntity guardado en la base de datos que representa un ConnectionPoint en un ConnectionPointWpf para ser usado en un proyecto wpf
/// </summary>
/// <param name="connectionPointEntity"></param>
/// <param name="parent"></param>
/// <returns></returns>
public static ConnectionPointWpf ConvertEntityToConnectionPoint(ConnectionPointEntity connectionPointEntity, Component parent)
{
ConnectionPointWpf connectionPointWpf = new ConnectionPointWpf((LogicalLibrary.ServerDesignerClasses.ConnectionPointType)connectionPointEntity.ConnectionType, parent);
connectionPointWpf.Parent = parent;
connectionPointWpf.XCoordinateRelativeToParent = connectionPointEntity.XCoordinateRelativeToParent;
connectionPointWpf.YCoordinateRelativeToParent = connectionPointEntity.YCoordinateRelativeToParent;
return(connectionPointWpf);
}
/// <summary>
/// Function to Load the relation ConnectionWidget from database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity parent</param>
/// <exception cref="ArgumentNullException">
/// if <paramref name="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
public void LoadRelationConnectionWidget(ConnectionPointEntity connectionPoint, Dictionary <string, IEntity> scope)
{
if (connectionPoint == 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 idConnectionWidget FROM [ConnectionPoint] WHERE idConnectionPoint = @idConnectionPoint";
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
IDbDataParameter parameter = dataAccess.GetNewDataParameter("@idConnectionPoint", DbType.Int32);
// Set command parameters values
parameter.Value = connectionPoint.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
ConnectionWidgetDataAccess connectionWidgetDataAccess = new ConnectionWidgetDataAccess();
connectionWidgetDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
// Load related object
connectionPoint.ConnectionWidget = connectionWidgetDataAccess.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();
}
}
}
/// <summary>
/// Function to Update a ConnectionPointEntity from database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity to update</param>
/// <exception cref="ArgumentNullException">
/// if <paramref name="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
private void Update(ConnectionPointEntity connectionPoint)
{
if (connectionPoint == null)
{
throw new ArgumentException("The argument can't be null", "connectionPoint");
}
// Build update command
string commandName = "UpdateConnectionPoint";
IDbCommand sqlCommand = dataAccess.GetNewCommand(commandName, dbConnection, dbTransaction);
sqlCommand.CommandType = CommandType.StoredProcedure;
// Set update parameters values
IDbDataParameter parameter = dataAccess.GetNewDataParameter("@idConnectionPoint", DbType.Int32);
parameter.Value = connectionPoint.Id;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@connectionType", DbType.Int32);
parameter.Value = connectionPoint.ConnectionType;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@xCoordinateRelativeToParent", DbType.Decimal);
parameter.Value = connectionPoint.XCoordinateRelativeToParent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@yCoordinateRelativeToParent", DbType.Decimal);
parameter.Value = connectionPoint.YCoordinateRelativeToParent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idParentComponent", DbType.Int32);
parameter.Value = connectionPoint.IdParentComponent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idComponent", DbType.Int32);
parameter.Value = connectionPoint.IdComponent;
sqlCommand.Parameters.Add(parameter);
parameter = dataAccess.GetNewDataParameter("@idConnectionWidget", DbType.Int32);
parameter.Value = connectionPoint.IdConnectionWidget;
sqlCommand.Parameters.Add(parameter);
// Execute the update
sqlCommand.ExecuteNonQuery();
// Update new and changed flags
connectionPoint.IsNew = false;
connectionPoint.Changed = false;
}
/// <summary>
/// Function to load a ConnectionPointEntity 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 ConnectionPointEntity Load(int id, bool loadRelation, Dictionary <string, IEntity> scope)
{
// Build a key for internal scope object
string scopeKey = id.ToString(NumberFormatInfo.InvariantInfo) + "ConnectionPoint";
if (scope != null)
{
// If scope contains the object it was already loaded,
// return it to avoid circular references
if (scope.ContainsKey(scopeKey))
{
return((ConnectionPointEntity)scope[scopeKey]);
}
}
else
{
// If there isn't a current scope create one
scope = new Dictionary <string, IEntity>();
}
ConnectionPointEntity connectionPoint = 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))
{
connectionPoint = inMemoryEntities[id];
// Add current object to current load scope
scope.Add(scopeKey, connectionPoint);
}
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 idConnectionPoint, connectionType, xCoordinateRelativeToParent, yCoordinateRelativeToParent, idParentComponent, idComponent, idConnectionWidget, timestamp FROM [ConnectionPoint] WHERE idConnectionPoint = @idConnectionPoint";
// Create the command
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
// Create the Id parameter for the query
IDbDataParameter parameter = dataAccess.GetNewDataParameter("@idConnectionPoint", DbType.Int32);
parameter.Value = id;
sqlCommand.Parameters.Add(parameter);
// Use a DataReader to get data from db
IDataReader reader = sqlCommand.ExecuteReader();
connectionPoint = new ConnectionPointEntity();
if (reader.Read())
{
// Load fields of entity
connectionPoint.Id = reader.GetInt32(0);
connectionPoint.ConnectionType = reader.GetInt32(1);
connectionPoint.XCoordinateRelativeToParent = Convert.ToDouble(reader.GetDecimal(2));
connectionPoint.YCoordinateRelativeToParent = Convert.ToDouble(reader.GetDecimal(3));
connectionPoint.IdParentComponent = reader.GetInt32(4);
connectionPoint.IdComponent = reader.GetInt32(5);
connectionPoint.IdConnectionWidget = reader.GetInt32(6);
// Add current object to the scope
scope.Add(scopeKey, connectionPoint);
// Add current object to cache of loaded entities
inMemoryEntities.Add(connectionPoint.Id, connectionPoint);
// Read the timestamp and set new and changed properties
connectionPoint.Timestamp = reader.GetDateTime(7);
connectionPoint.IsNew = false;
connectionPoint.Changed = false;
// Close the reader
reader.Close();
// Load related objects if required
if (loadRelation)
{
LoadRelationParentComponent(connectionPoint, scope);
LoadRelationComponent(connectionPoint, scope);
LoadRelationConnectionWidget(connectionPoint, 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(connectionPoint);
}
/// <summary>
/// Function to Delete a ConnectionPointEntity from database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity 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="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Delete(ConnectionPointEntity connectionPoint, Dictionary <string, IEntity> scope)
{
if (connectionPoint == 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
connectionPoint = this.Load(connectionPoint.Id, true);
if (connectionPoint == null)
{
throw new UtnEmallDataAccessException("Error retrieving data while trying to delete.");
}
// Create a command for delete
string cmdText = "DeleteConnectionPoint";
IDbCommand sqlCommand = dataAccess.GetNewCommand(cmdText, dbConnection, dbTransaction);
sqlCommand.CommandType = CommandType.StoredProcedure;
// Add values to parameters
IDbDataParameter parameterID = dataAccess.GetNewDataParameter("@idConnectionPoint", DbType.Int32);
parameterID.Value = connectionPoint.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(connectionPoint.Id);
// Remove entity from current internal scope
if (scope != null)
{
string scopeKey = connectionPoint.Id.ToString(NumberFormatInfo.InvariantInfo) + "ConnectionPoint";
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 ConnectionPointEntity from database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity to delete</param>
/// <exception cref="ArgumentNullException">
/// If <paramref name="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Delete(ConnectionPointEntity connectionPoint)
{
Delete(connectionPoint, null);
}
/// <summary>
/// Function to Save a ConnectionPointEntity in the database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity 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="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Save(ConnectionPointEntity connectionPoint, Dictionary <string, IEntity> scope)
{
if (connectionPoint == null)
{
throw new ArgumentException("The argument can't be null");
}
// Create a unique key to identify the object in the internal scope
string scopeKey = connectionPoint.Id.ToString(NumberFormatInfo.InvariantInfo) + "ConnectionPoint";
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 (connectionPoint.IsNew || !DataAccessConnection.ExistsEntity(connectionPoint.Id, "ConnectionPoint", "idConnectionPoint", dbConnection, dbTransaction))
{
commandName = "SaveConnectionPoint";
}
else
{
isUpdate = true;
commandName = "UpdateConnectionPoint";
ConnectionPointEntity connectionPointTemp0 = new ConnectionPointEntity();
connectionPointTemp0.Id = connectionPoint.Id;
LoadRelationParentComponent(connectionPointTemp0, scope);
if (connectionPointTemp0.ParentComponent != null && connectionPointTemp0.IdParentComponent != connectionPoint.IdParentComponent)
{
ComponentDataAccess componentDataAccess = new ComponentDataAccess();
componentDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
componentDataAccess.Delete(connectionPointTemp0.ParentComponent, scope);
}
}
// 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("@idConnectionPoint", DbType.Int32);
parameter.Value = connectionPoint.Id;
sqlCommand.Parameters.Add(parameter);
}
FillSaveParameters(connectionPoint, sqlCommand);
// Execute the command
if (isUpdate)
{
sqlCommand.ExecuteNonQuery();
}
else
{
IDbDataParameter parameterIdOutput = dataAccess.GetNewDataParameter("@idConnectionPoint", DbType.Int32);
parameterIdOutput.Direction = ParameterDirection.ReturnValue;
sqlCommand.Parameters.Add(parameterIdOutput);
sqlCommand.ExecuteNonQuery();
connectionPoint.Id = Convert.ToInt32(parameterIdOutput.Value, NumberFormatInfo.InvariantInfo);
}
scopeKey = connectionPoint.Id.ToString(NumberFormatInfo.InvariantInfo) + "ConnectionPoint";
// Add entity to current internal scope
scope.Add(scopeKey, connectionPoint);
// Save collections of related objects to current entity
// Save objects related to current entity
if (connectionPoint.ParentComponent != null)
{
ComponentDataAccess componentDataAccess = new ComponentDataAccess();
componentDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
componentDataAccess.Save(connectionPoint.ParentComponent, scope);
}
if (connectionPoint.Component != null)
{
ComponentDataAccess componentDataAccess = new ComponentDataAccess();
componentDataAccess.SetConnectionObjects(dbConnection, dbTransaction);
componentDataAccess.Save(connectionPoint.Component, scope);
}
// Update
Update(connectionPoint);
// Close transaction if initiated by me
if (!isGlobalTransaction)
{
dbTransaction.Commit();
}
// Update new and changed flags
connectionPoint.IsNew = false;
connectionPoint.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 ConnectionPointEntity in the database.
/// </summary>
/// <param name="connectionPoint">ConnectionPointEntity to save</param>
/// <exception cref="ArgumentNullException">
/// if <paramref name="connectionPoint"/> is not a <c>ConnectionPointEntity</c>.
/// </exception>
/// <exception cref="UtnEmallDataAccessException">
/// If an DbException occurs in the try block while accessing the database.
/// </exception>
public void Save(ConnectionPointEntity connectionPoint)
{
Save(connectionPoint, null);
}
