public List<LearnerInfo> ImportCSV(string csvPath)
{
List<LearnerInfo> learnerInfos = new List<LearnerInfo>();
if (File.Exists(csvPath))
{
using (TextReader tr = new StreamReader(csvPath))
{
string line = tr.ReadLine();
int lineNumber = 0;
while (line!=null)
{
string[] fields = line.Split(',');
if (fields.Length != 5 && !(lineNumber==0 ^ fields[0].ToLower().Equals("First Name")) ) return null; // CSV MALFORMED
if (lineNumber > 0) // the first line contains headers
{
LearnerInfo li = new LearnerInfo(fields[0], fields[1], fields[2], 0, fields[3], fields[4], 0);
learnerInfos.Add(li);
_db.AddStudent(li);
}
line = tr.ReadLine();
lineNumber++;
}
}
}
return learnerInfos;
}
public bool RemoveLearnerFromLearnerModel(LearnerInfo learnerInfo)
{
if (_db != null)
{
_db.RemoveStudent(learnerInfo);
return true;
}
return false;
}
public async Task<bool> AddLearnerToLearnerModel(LearnerInfo learnerInfo)
{
if (_db != null)
{
_db.AddStudent(learnerInfo);
await Task.Delay(2000);
await _db.GetAllStudentsAsync();
return true;
}
return false;
}
private async void AddButton_OnClick(object sender, RoutedEventArgs e)
{
AddButton.IsEnabled = false;
if (txtFirstName.Text != "" && txtLastName.Text != "" && DatePickerBirth.Text != "" &&
cmbSex.SelectedItem != null && cmbSex.SelectedItem.ToString() != "")
{
string sex = cmbSex.SelectedIndex==0?"M":"F";
if (DatePickerBirth.SelectedDate != null)
{
var learnerInfo = new LearnerInfo(txtFirstName.Text, txtMiddleName.Text, txtLastName.Text, 0, sex,
DatePickerBirth.SelectedDate.Value.ToShortDateString(), 0);
if (await _controller.AddLearnerToLearnerModel(learnerInfo))
{
_data.Learners.Add(learnerInfo);
}
else
{
MessageBox.Show("Can't add the new Learner to the database", "Error", MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
else
{
MessageBox.Show("Please select a birth date", "Missing birth date", MessageBoxButton.OK,
MessageBoxImage.Warning);
}
}
else
{
MessageBox.Show("All fields required", "Warning", MessageBoxButton.OK, MessageBoxImage.Warning);
}
AddButton.IsEnabled = true;
}
public void RemoveStudent(LearnerInfo learnerInfo)
{
// NOT YET IMPLEMENTED
}
public void AddStudent(LearnerInfo learnerInfo)
{
learnerInfo.thalamusLearnerId = learnerInfo.mapApplicationId = _nextThalamusId++;
_client.LDBPublisher.SetLearnerInfo(learnerInfo.SerializeToJson());
}
