public ProjectData AddAssignment(AssignmentId assignmentId, TaskId taskId, ResourceId resourceId)
{
Debug.Assert(!assignmentId.IsDefault);
Debug.Assert(!taskId.IsDefault);
Debug.Assert(!resourceId.IsDefault);
var project = this;
var numberOfExistingAssignments = project.GetAssignments(taskId).Count();
// Add assignment
var assignment = AssignmentData.Create(assignmentId, taskId, resourceId);
var taskAssignments = project.Get(TaskFields.Assignments, taskId).Add(assignmentId);
var resourceAssignments = project.Get(ResourceFields.Assignments, resourceId).Add(assignmentId);
project = project.WithAssignmentMap(_assignmentMap.Add(assignment.Id, assignment))
.Set(TaskFields.Assignments, taskId, taskAssignments)
.Set(ResourceFields.Assignments, resourceId, resourceAssignments);
// Initialize Assignment.Work and update Task.Work
if (numberOfExistingAssignments == 0)
{
var work = project.Get(TaskFields.Work, taskId);
if (work == TimeSpan.Zero)
{
work = project.Get(TaskFields.Duration, taskId);
}
project = project.SetRaw(TaskFields.Work, taskId, work)
.SetRaw(AssignmentFields.Work, assignmentId, work);
}
else
{
var taskWork = project.Get(TaskFields.Work, taskId);
var newTaskWorkHours = taskWork.TotalHours / numberOfExistingAssignments * (numberOfExistingAssignments + 1);
var newAssignmentWorkHours = newTaskWorkHours - taskWork.TotalHours;
var newTaskWork = TimeSpan.FromHours(newTaskWorkHours);
var newAssignmentWork = TimeSpan.FromHours(newAssignmentWorkHours);
project = project.SetRaw(TaskFields.Work, taskId, newTaskWork)
.SetRaw(AssignmentFields.Work, assignmentId, newAssignmentWork);
}
// Initialize Assignment.TaskName and Assignment.ResourceName
var taskName = project.Get(TaskFields.Name, taskId);
var resourceName = project.Get(ResourceFields.Name, resourceId);
project = project.SetRaw(AssignmentFields.TaskName, assignmentId, taskName)
.SetRaw(AssignmentFields.ResourceName, assignmentId, resourceName);
// Update Task.ResourceNames
project = project.Reset(TaskFields.ResourceNames, taskId)
.Reset(TaskFields.ResourceInitials, taskId);
return(project);
}
internal static AssignmentChanges Compute(AssignmentData oldAssignment, AssignmentData newAssignment)
{
Debug.Assert(oldAssignment != newAssignment);
Debug.Assert(oldAssignment.Id == newAssignment.Id);
var result = new List <FieldChange <AssignmentField> >();
foreach (var field in oldAssignment.SetFields)
{
var oldValue = oldAssignment.GetValue(field);
if (!newAssignment.HasValue(field))
{
result.Add(new FieldChange <AssignmentField>(field, oldValue, field.DefaultValue));
}
else
{
var newValue = newAssignment.GetValue(field);
if (!Equals(oldValue, newValue))
{
result.Add(new FieldChange <AssignmentField>(field, oldValue, newValue));
}
}
}
foreach (var field in newAssignment.SetFields)
{
var newValue = newAssignment.GetValue(field);
if (!oldAssignment.HasValue(field))
{
result.Add(new FieldChange <AssignmentField>(field, field.DefaultValue, newValue));
}
}
return(new AssignmentChanges(oldAssignment.Id, result.ToImmutableArray()));
}
internal Assignment(Project project, AssignmentData data)
{
_project = project;
_data = data;
}
public ProjectData AddAssignment(AssignmentData assignment)
{
Debug.Assert(assignment != null);
return(WithAssignmentMap(_assignmentMap.Add(assignment.Id, assignment)));
}