async void EditItem_Click(object sender, RoutedEventArgs e)
{
if (StatementsLV.SelectedItem != null)
{
await EditStatementDialog.Show((Statement)StatementsLV.SelectedItem, false, false, false);
}
}
async Task <Statement> AddStatement(bool generatedComplexMode, bool generatedTotalMode, bool background = false)
{
if (!(generatedComplexMode && generatedTotalMode))
{
var statement = new Statement();
//Attention 'HERE. It cannot be optimized that way, you thought about.
statement.StatementNumber = statement.ID = int.Parse(await NetworkUtils.ExecuteDataAction <Statement>(background ? null : this, statement, DataAction.Save));
statement.IsLocal = false;
if (!background)
{
await EditStatementDialog.Show(statement, true, generatedComplexMode, generatedTotalMode);
}
return(statement);
}
else
{
return(null);
}
}
async Task GenerateStatement(bool complexMode, bool totalMode, int strangeThreshold)
{
if (StatementsLV.SelectedItems.Count > 0)
{
if (StatementsLV.SelectedItems.Count > strangeThreshold ||
MessageBox.Show($"Имеет ли смысл? Меньше {strangeThreshold + 1} ведомостей.", "Странная операция", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
var statement = await AddStatement(complexMode, totalMode, true);
if (statement != null && statement.ID != -1)
{
Cursor = Cursors.Wait;
var data = new List <StatementResult>();
foreach (Statement current in StatementsLV.SelectedItems)
{
data.AddRange(await NetworkUtils.RequestData <StatementResult>(this, strict: true, orAll: true, preserveContext: true, column: null,
whereParams: (name: nameof(StatementResult.StatementID), value: current.ID)));
}
var distinctor = new DistinctByStudentAndSubject();
//Latest - at the end
data.Sort((c1, c2) => c1.StatementResultDate > c2.StatementResultDate ? 1 : c1.StatementResultDate < c2.StatementResultDate ? -1 : 0);
//Get empty student-subject intersections, fill with blanks.
//Get last student-subject couples, distinct by distinctor(student-subject)->
//set owner as just created statement->
//make 'local' to tell the system to re-create it on server side->
//save on server->
//update data in opened by adding new statement->
var studentIDs = data.Select(c => c.StudentID).Distinct();
var subjectIDs = data.Select(c => c.SubjectID).Distinct();
foreach (var studentID in studentIDs)
{
foreach (var subjectID in subjectIDs)
{
if (!data.Any(c => c.StudentID == studentID && c.SubjectID == subjectID))
{
await NetworkUtils.ExecuteDataAction <StatementResult>(null, new StatementResult
{
StatementID = statement.ID,
StudentID = studentID,
SubjectID = subjectID,
MarkValue = (sbyte)TechnicalMarkValue.Blank,
StatementResultDate = null,
TicketNumber = -1
}, DataAction.Save);
}
}
}
foreach (var current in data.Select(c => (studentID: c.StudentID, subjectID: c.SubjectID))
.Select(c => data.LastOrDefault(currentResult => currentResult.StudentID == c.studentID &&
currentResult.SubjectID == c.subjectID))
.Distinct(distinctor))
{
current.StatementID = statement.ID;
current.IsLocal = true;
await NetworkUtils.ExecuteDataAction <StatementResult>(null, current, DataAction.Save);
}
Cursor = Cursors.Arrow;
await EditStatementDialog.Show(statement, true, complexMode, totalMode);
await EditStatementDialog.UpdateData();
}
await UpdateData();
}
}
}
