public static void DeleteKnot(int knotId)
{
Knots knot = db.Knots.Where(k => k.id.Equals(knotId)).Single();
Guides guide = db.Guides.Where(g => g.id.Equals(knot.guide_id)).Single();
db.Knots.DeleteOnSubmit(knot);
db.Guides.DeleteOnSubmit(guide);
db.SubmitChanges();
MessageBox.Show("Узел <" + knot.name + "> успешно удален", "Успешно", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
public static void UpdateKnot(int knotId, string knotName, string knotComment, Binary knotBinary, string guideComment, Binary guideBinary, int typeId)
{
Knots knot = db.Knots.Where(k => k.id.Equals(knotId)).Single();
Guides guide = db.Guides.Where(g => g.id.Equals(knot.guide_id)).Single();
knot.name = knotName;
knot.comment = knotComment;
knot.image = knotBinary;
knot.type_id = typeId;
guide.comment = guideComment;
guide.image = guideBinary;
db.SubmitChanges();
MessageBox.Show("Данные об узле <" + knotName + ">, успешно изменены.", "Успешно", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
public static void InsertKnot(string knotName, string knotComment, Binary knotBinary, string guideComment, Binary guideBinary, int typeId)
{
bool exist = db.Knots.Where(k => k.name.Equals(knotName)).Any();
if (exist != true)
{
Guides newGuide = new Guides
{
comment = guideComment,
image = guideBinary
};
db.Guides.InsertOnSubmit(newGuide);
db.SubmitChanges();
Guides guide = db.Guides.ToList().Last();
Knots newKnot = new Knots
{
name = knotName,
comment = knotComment,
image = knotBinary,
type_id = typeId,
guide_id = guide.id
};
db.Knots.InsertOnSubmit(newKnot);
db.SubmitChanges();
MessageBox.Show("Новый узел <" + knotName + "> успешно добавлен.", "Успешно", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Узел с названием <" + knotName + "> уже существует.", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
partial void DeleteGuides(Guides instance);
partial void UpdateGuides(Guides instance);
partial void InsertGuides(Guides instance);