/// <summary>
/// Insert a new database record from the supplied data transfer object.
/// </summary>
/// <param name="transaction">
/// The current transaction to the database.
/// </param>
/// <param name="partition">
/// The database partition (schema) where the requested resource will be stored.
/// </param>
/// <param name="diagramCanvas">
/// The diagramCanvas DTO that is to be persisted.
/// </param>
/// <param name="container">
/// The container of the DTO to be persisted.
/// </param>
/// <returns>
/// True if the concept was successfully persisted.
/// </returns>
public virtual bool Write(NpgsqlTransaction transaction, string partition, CDP4Common.DTO.DiagramCanvas diagramCanvas, CDP4Common.DTO.Thing container = null)
{
bool isHandled;
var valueTypeDictionaryAdditions = new Dictionary <string, string>();
var beforeWrite = this.BeforeWrite(transaction, partition, diagramCanvas, container, out isHandled, valueTypeDictionaryAdditions);
if (!isHandled)
{
beforeWrite = beforeWrite && base.Write(transaction, partition, diagramCanvas, container);
var valueTypeDictionaryContents = new Dictionary <string, string>
{
{ "CreatedOn", !this.IsDerived(diagramCanvas, "CreatedOn") ? diagramCanvas.CreatedOn.ToString(Utils.DateTimeUtcSerializationFormat) : string.Empty },
}.Concat(valueTypeDictionaryAdditions).ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
using (var command = new NpgsqlCommand())
{
var sqlBuilder = new System.Text.StringBuilder();
sqlBuilder.AppendFormat("INSERT INTO \"{0}\".\"DiagramCanvas\"", partition);
sqlBuilder.AppendFormat(" (\"Iid\", \"ValueTypeDictionary\", \"Container\")");
sqlBuilder.AppendFormat(" VALUES (:iid, :valueTypeDictionary, :container);");
command.Parameters.Add("iid", NpgsqlDbType.Uuid).Value = diagramCanvas.Iid;
command.Parameters.Add("valueTypeDictionary", NpgsqlDbType.Hstore).Value = valueTypeDictionaryContents;
command.Parameters.Add("container", NpgsqlDbType.Uuid).Value = container.Iid;
command.CommandText = sqlBuilder.ToString();
command.Connection = transaction.Connection;
command.Transaction = transaction;
this.ExecuteAndLogCommand(command);
}
}
return(this.AfterWrite(beforeWrite, transaction, partition, diagramCanvas, container));
}
/// <summary>
/// The mapping from a database record to data transfer object.
/// </summary>
/// <param name="reader">
/// An instance of the SQL reader.
/// </param>
/// <returns>
/// A deserialized instance of <see cref="CDP4Common.DTO.DiagramCanvas"/>.
/// </returns>
public virtual CDP4Common.DTO.DiagramCanvas MapToDto(NpgsqlDataReader reader)
{
string tempModifiedOn;
string tempName;
string tempCreatedOn;
var valueDict = (Dictionary <string, string>)reader["ValueTypeSet"];
var iid = Guid.Parse(reader["Iid"].ToString());
var revisionNumber = int.Parse(valueDict["RevisionNumber"]);
var dto = new CDP4Common.DTO.DiagramCanvas(iid, revisionNumber);
dto.ExcludedPerson.AddRange(Array.ConvertAll((string[])reader["ExcludedPerson"], Guid.Parse));
dto.ExcludedDomain.AddRange(Array.ConvertAll((string[])reader["ExcludedDomain"], Guid.Parse));
dto.DiagramElement.AddRange(Array.ConvertAll((string[])reader["DiagramElement"], Guid.Parse));
dto.Bounds.AddRange(Array.ConvertAll((string[])reader["Bounds"], Guid.Parse));
if (valueDict.TryGetValue("ModifiedOn", out tempModifiedOn))
{
dto.ModifiedOn = Utils.ParseUtcDate(tempModifiedOn);
}
if (valueDict.TryGetValue("Name", out tempName))
{
dto.Name = tempName.UnEscape();
}
if (valueDict.TryGetValue("CreatedOn", out tempCreatedOn))
{
dto.CreatedOn = Utils.ParseUtcDate(tempCreatedOn);
}
return(dto);
}