public void DeleteSubjectType(SubjectTypeEdit toEdit)
{
SubjectType st = this.repository.GetSubjectType(toEdit.SubjectTypeName);
if (st != null && st.SubjectTypesDatas.Count > 0)
throw new UpdateException("Nie można usunąć typu przedmiotu,\nponieważ posiada powiązania");
else
this.repository.DeleteSubjectType(st);
}
public SubjectTypeEdit GetSubjectTypeEdit(string subjectTypeName)
{
SubjectType st = this.GetSubjectType(subjectTypeName);
if (st != null)
{
SubjectTypeEdit ste = new SubjectTypeEdit()
{
SubjectTypeID = st.SubjectTypeID,
SubjectTypeName = st.Name
};
return ste;
}
return null;
}
public bool EditSubjectType(SubjectTypeEdit toEdit)
{
if (toEdit != null)
{
SubjectType st = this.repository.GetSubjectType(toEdit.SubjectTypeName);
if (st != null && st.SubjectTypeID != toEdit.SubjectTypeID && st.Name.ToLower().Equals(toEdit.SubjectTypeName.ToLower()))
toEdit.AddError("Typ przedmiotu o takiej nazwie\njuż istnieje");
if (toEdit.IsValid)
{
st = this.repository.GetSubjectType(toEdit.SubjectTypeID);
st.Name = toEdit.SubjectTypeName;
this.repository.EditSubjectType(st);
return true;
}
}
return false;
}
private void listSubjectTypes_DoubleClick(object sender, EventArgs e)
{
lblValidation.Text = string.Empty;
if (listSubjectTypes.SelectedIndex >= 0)
{
SubjectTypeEdit subjectType = SubjectTypeController.Instance.GetSubjectTypeEdit(listSubjectTypes.SelectedItem.ToString());
if (subjectType != null)
{
toEdit = subjectType;
Enable();
tbNewSubjectTypeName.Text = subjectType.SubjectTypeName;
}
else
{
lblValidation.Text = "Typ przedmiotu nie istnieje";
toEdit = null;
}
}
}
private void btnCancel_Click(object sender, EventArgs e)
{
if (toEdit != null)
{
toEdit = null;
Disable();
Clear();
}
}
private void btnDelete_Click(object sender, EventArgs e)
{
lblValidation.Text = string.Empty;
if (toEdit != null)
{
try
{
SubjectTypeController.Instance.DeleteSubjectType(toEdit);
FillWithSubjectTypes();
toEdit = null;
Disable();
Clear();
changes = true;
}
catch (UpdateException ex)
{
lblValidation.Text = ex.Message;
}
}
}