public void LoadDatapointByID(Int64 nodeID, DatabaseFacade database)
{
this.Database = database;
this.Database.OpenConnection();
DatapointNode datapoint = this.Database.GetDatapointNodeByID(nodeID);
FolderNode parent = this.Database.GetFolderNodeByID(datapoint.GetParentID());
this.Database.CloseConnection();
this.DatapointID = datapoint.GetID();
this.LabelDatapointName.Text = datapoint.GetName();
this.AnalyseDatapointName.Text = datapoint.GetName();
this.AnalyseDatapointDescription.Text = datapoint.GetDescription();
this.LabelDatapointDescription.Text = datapoint.GetDescription();
this.LabelDatapointID.Text = datapoint.GetID().ToString();
this.LabelDatapointParent.Text = parent.GetName();
if (datapoint.GetDatapointType() == DatapointNode.TYPE_BOOL)
{
this.LabelDatapointType.Text = "Bool (Wahr/Falsch)";
}
if (datapoint.GetDatapointType() == DatapointNode.TYPE_FLOATING_POINT)
{
this.LabelDatapointType.Text = "Fließkommazahl";
}
if (datapoint.GetDatapointType() == DatapointNode.TYPE_INTEGER)
{
this.LabelDatapointType.Text = "Ganzzahl";
}
if (datapoint.GetDatapointType() == DatapointNode.TYPE_TEXT)
{
this.LabelDatapointType.Text = "Text";
}
this.LabelDatapointUnit.Text = datapoint.GetUnit();
this.LabelDatapointLastValue.Text = datapoint.GetLastValue() + " (" + datapoint.GetLastValueUpdate() + ")";
this.LabelDatapointLastUpdate.Text = datapoint.GetLastUpdated().ToString();
DateTime From = DateTime.Now;
TimeSpan FromTime = new TimeSpan(0, 0, 0);
From = From.Date + FromTime;
DateTime To = DateTime.Now;
TimeSpan ToTime = new TimeSpan(23, 59, 59);
To = To.Date + ToTime;
DrawDatapointChart(ChartDatapoint, From, To);
}
/// <summary>
/// Update a DatapointNode in the database
/// </summary>
/// <param name="Node">
/// DatapointNode that should be updated
/// </param>
/// <returns>
/// true, if the node is updated
/// false, if no node is updated
/// </returns>
public Boolean UpdateNode(DatapointNode Node)
{
// Command that will be send to the databse
MySqlCommand Command = this.Connection.CreateCommand();
// Update a row in the databse with the given node id
// UPDATE > Update rows of a table
// SET [colum name] = [value], > Set a column to the given value
// [colum name] = [value] > Set a column to the given value
// WHERE object_id = {0} > Update all rows where the column object_id matches the given id
Command.CommandText = String.Format(
"UPDATE object_tree SET object_parent_id={0}, object_name='{1}', object_description='{2}', object_last_updated='{3}', datapoint_type={4}, datapoint_unit='{5}', datapoint_last_value='{6}', datapoint_last_updated='{7}' WHERE object_id={8}",
Node.GetParentID(), Node.GetName(), Node.GetDescription(), DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), Node.GetDatapointType(), Node.GetUnit(), Node.GetLastValue(), Node.GetLastValueUpdate().ToString("yyyy-MM-dd HH:mm:ss"), Node.GetID()
);
Command.Connection = this.Connection;
// Execute the command and get the number of rows that are affected by the command
Int32 AffectedRows = Command.ExecuteNonQuery();
// If no rows where affected return false
if (AffectedRows == 0)
{
return(false);
}
// Row successfully updated
return(true);
}
/// <summary>
/// Insert a DatapointNode into the database
/// </summary>
/// <param name="Node">
/// DatapointNode that should be insert
/// </param>
/// <returns>
/// true, if a row was inserted
/// false, if no row was inserted
/// </returns>
public Boolean InsertNode(DatapointNode Node)
{
// Command that will be send to the databse
MySqlCommand Command = this.Connection.CreateCommand();
// Update a row in the databse with the given node id
// UPDATE > Update rows of a table
// SET [colum name] = [value], > Set a column to the given value
// [colum name] = [value] > Set a column to the given value
// WHERE object_id = {0} > Update all rows where the column object_id matches the given id
Command.CommandText = String.Format(
"INSERT INTO object_tree ( object_parent_id , object_type , object_name , object_description , object_last_updated , datapoint_type , datapoint_unit , datapoint_last_value , datapoint_last_updated ) Values( {0} , {1} , '{2}' , '{3}' , '{4}' , '{5}' , '{6}' , '{7}' , '{8}' )",
Node.GetParentID(), DatapointNode.NODE_TYPE, Node.GetName(), Node.GetDescription(), Node.GetLastUpdated().ToString("yyyy-MM-dd HH:mm:ss"), Node.GetDatapointType().ToString(), Node.GetUnit(), Node.GetLastValue(), Node.GetLastValueUpdate().ToString("yyyy-MM-dd HH:mm:ss")
);
Command.Connection = this.Connection;
// Execute the command and get the number of rows that are affected by the command
Int32 AffectedRows = Command.ExecuteNonQuery();
// Set the ID of the node to the ID that was provided by the database
Node.SetID(Command.LastInsertedId);
// If no rows where affected return false
if (AffectedRows == 0)
{
return(false);
}
// Row successfully insert
return(true);
}