public HistoryModel Create(History history)
{
return new HistoryModel
{
Url = _urlHelper.Link("HistoryApi", new { id = history.Id }),
Body = history.Body,
Date = history.Date,
UserId = history.UserId
};
}
/// <summary>
/// Create a new History object.
/// </summary>
/// <param name="valueId">Initial value of the ValueId property.</param>
/// <param name="time">Initial value of the Time property.</param>
/// <param name="value">Initial value of the Value property.</param>
/// <param name="author">Initial value of the Author property.</param>
/// <param name="id">Initial value of the Id property.</param>
public static History CreateHistory(global::System.Int32 valueId, global::System.DateTime time, global::System.String value, global::System.String author, global::System.Int32 id)
{
History history = new History();
history.ValueId = valueId;
history.Time = time;
history.Value = value;
history.Author = author;
history.Id = id;
return history;
}
/// <summary>
/// Saves old version into History table and modifies existing value.
/// </summary>
/// <param name="entity">New values of existing project properties.</param>
/// <param name="author">Author of modification.</param>
/// <returns>If operation was done.</returns>
internal static bool ModifyWithHistory(Value entity)
{
bool operationSuccess = false;
ProjectPropertiesEntities db = new ProjectPropertiesEntities();
if (db.Connection.State != System.Data.ConnectionState.Open)
{
db.Connection.Open();
}
DbTransaction transaction = db.Connection.BeginTransaction();
try
{
Value oldVersion = db.Values.FirstOrDefault(x => x.Id == entity.Id);
if (oldVersion == null)
{
throw new IllegalDBOperationException(entity);
}
if (oldVersion.Value1.Equals(entity.Value1))
{
return true;
}
History forOldVersion = new History(oldVersion);
db.AddToHistories(forOldVersion);
if (entity.Important)
{
Project currentProject = db.Projects.FirstOrDefault(x => x.Id == entity.ProjectId);
if (currentProject == null)
{
throw new IllegalDBOperationException(entity);
}
db.SaveChanges();
currentProject.LastChanged = forOldVersion.Id;
db.Refresh(RefreshMode.ClientWins, currentProject);
}
oldVersion.ModifyItself(entity);
db.Refresh(RefreshMode.ClientWins, oldVersion);
db.SaveChanges();
transaction.Commit();
operationSuccess = true;
}
catch(IllegalDBOperationException e)
{
transaction.Rollback();
}
catch (Exception e)
{
transaction.Rollback();
}
finally
{
db.Connection.Close();
}
return operationSuccess;
}
/// <summary>
/// Deprecated Method for adding a new object to the Histories EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToHistories(History history)
{
base.AddObject("Histories", history);
}
