/**
* A list of allmagazine in the MagazineClass' getAllMagazineFromDB() function is created.
* magazineUserControls is created from the MagazineUserControls
* The size of MagazineUserControls is up to the length of allmagazine
*/
private void populateMagazinesViewInHomePage()
{
List <MagazineClass> allmagazine = MagazineClass.getAllMagazineFromDB();
MagazineUserControl[] magazineUserControls = new MagazineUserControl[allmagazine.Count];
if (flpHomePage.Controls.Count > 0)
{
flpHomePage.Controls.Clear();
}
int i = 0;
foreach (var item in allmagazine)
{
magazineUserControls[i] = new MagazineUserControl();
magazineUserControls[i].magazineID = item.id;
magazineUserControls[i].magazineName = item.name;
magazineUserControls[i].magazinePrice = item.price;
magazineUserControls[i].magazineIssue = item.issue;
magazineUserControls[i].stock = item.stock;
magazineUserControls[i].cover_page_picture = item.cover_page_picture;
flpHomePage.Controls.Add(magazineUserControls[i]);
i++;
}
}
/**this function read amagazine item in a database
* @param string id
* @return magazine
*/
public static MagazineClass getAMagazineFromDB(string id)
{
DatabaseHelperClass dbHelper = DatabaseHelperClass.Instance; //SINGLETON PATTERN
SqlConnection connection = dbHelper.getConnection();
SqlCommand command = new SqlCommand("SELECT * FROM MagazineTable where id=@id", connection);
command.Parameters.AddWithValue("@id", Convert.ToInt32(id));
SqlDataReader readMagazine = command.ExecuteReader();
MagazineClass magazine = new MagazineClass();
if (readMagazine != null)
{
while (readMagazine.Read())
{
magazine.id = readMagazine["id"].ToString();
magazine.name = readMagazine["name"].ToString();
magazine.price = Convert.ToDouble(readMagazine["price"]);
magazine.stock = Convert.ToInt32(readMagazine["stock"]);
magazine.issue = readMagazine["issue"].ToString();
magazine.cover_page_picture = readMagazine["cover_page_picture"].ToString();
}
}
return(magazine);
}
/** @ brief adds the purchased magzine to the shopping cart
* create a magzine from MagazineClass
* and item added shoppingcartclass
*/
private void btnMagazineAddToCart_Click(object sender, EventArgs e)
{
MagazineClass magazine = new MagazineClass();
magazine = MagazineClass.getAMagazineFromDB(magazineID);
ShoppingCartClass.addProduct(new ItemToPurchaseClass(magazine, Convert.ToInt32(Math.Round(nudQuantity.Value, 0))));
System.Windows.Forms.Form f = System.Windows.Forms.Application.OpenForms["BookShopForm"];
int quantity = 0;
foreach (var item in ShoppingCartClass.itemsToPurchase)
{
quantity += item.quantity;
}
((BookShopForm)f).lblShoppinCartValue.Text = quantity.ToString();
MessageBox.Show("Added to cart.", "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
private void btnUpdateMagazine_Click(object sender, EventArgs e)
{
MagazineClass magazine = new MagazineClass(txtMagazineName.Text, txtMagazineId.Text, Convert.ToDouble(txtMagazinePrice.Text), Convert.ToInt32(txtMagazineStock.Text), txtMagazineIssue.Text, txtMagazineType.Text, txtMagazineImage.Text);
//bool affected = dbHelper.updateAProductAtDB(magazine);
AdminUserClass adminOps = AdminUserClass.Instance;
bool affected = adminOps.updateProduct(magazine);
if (!affected)
{
MessageBox.Show("Error not successful", "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show("Magazine added successfully", "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Information);
clearMagazineControls();
}
}
/**
* magazineList created fromMagazineClass
* this function reads magazine items in database
* and add in magazinelist
* @return magazineList
*/
public static List <MagazineClass> getAllMagazineFromDB()
{
List <MagazineClass> magazineList = new List <MagazineClass>();
DatabaseHelperClass dbHelper = DatabaseHelperClass.Instance; //SINGLETON PATTERN
SqlConnection connection = dbHelper.getConnection();
SqlCommand command = new SqlCommand("SELECT * FROM MagazineTable", connection);
SqlDataReader readMagazine = command.ExecuteReader();
if (readMagazine != null)
{
while (readMagazine.Read())
{
MagazineClass magazine = new MagazineClass();
magazine.id = readMagazine["id"].ToString();
magazine.name = readMagazine["name"].ToString();
magazine.price = Convert.ToDouble(readMagazine["price"]);
magazine.stock = Convert.ToInt32(readMagazine["stock"]);
magazine.issue = readMagazine["issue"].ToString();
magazine.cover_page_picture = readMagazine["cover_page_picture"].ToString();
magazineList.Add(magazine);
}
}
return(magazineList);
}