private void submitButton_Click(object sender, EventArgs e)
{
string name = "";
string description = "";
int priority;
int index;
if (nameTextBox.Text != "")
{
name = nameTextBox.Text;
}
if (descriptionTextBox.Text != "")
{
description = descriptionTextBox.Text;
}
if (!Int32.TryParse(priorityTextBox.Text, out priority))
{
MessageBox.Show("Input is not valid for priority, should be a number");
return;
}
if (!Int32.TryParse(indexTextBox.Text, out index))
{
MessageBox.Show("Input is not valid for index, should be a number");
return;
}
if (state.getTakenIndices().Contains(index))
{
MessageBox.Show("Index already taken, try another");
return;
}
else
{
this.createdItem = new TodoItemCreated(Guid.NewGuid(), name, description, priority, index);
}
this.Close();
}
private TodoItemCreated getRandomTodoItemCreated()
{
Guid newGuid = Guid.NewGuid();
TodoItemCreated todoItemCreated = new TodoItemCreated(newGuid, getRandomString(nameLength), getRandomString(descriptionLenght), getNextPriority(), getFirstAvailableIndex());
return todoItemCreated;
}
public IEvent transformEvent(TodoItemCreated toTransform, IEvent transformAgainst)
{
if (transformAgainst.GetType().Equals(typeof(TodoItemCreated)))
{
TodoItemCreated transFormAgainstCreated = (TodoItemCreated)transformAgainst;
if (transFormAgainstCreated.aggregateId == toTransform.aggregateId)
{
if (transFormAgainstCreated.Equals(toTransform))
{
//Both events are the same so remove one.
return new Unused();
}
//Else cannot create same id item so conflict.
return null;
}
}
else if (transformAgainst.GetType().Equals(typeof(TodoItemDeleted)))
{
//Create after delete is no problem.
}
else if (transformAgainst.GetType().Equals(typeof(TodoItemIndexChanged)))
{
TodoItemIndexChanged transFormAgainstIndex = (TodoItemIndexChanged)transformAgainst;
if (transFormAgainstIndex.newIndex == toTransform.index)
{
// Create new transform at index +1. This is because the client side has lower prio than server side events.
toTransform = new TodoItemCreated(toTransform.aggregateId, toTransform.name, toTransform.description, toTransform.priority, toTransform.index + 1);
}
}
return toTransform;
}