/// <summary>
/// Makes changes (create, update, delete)
/// </summary>
/// <param name="context"></param>
/// <param name="query"></param>
/// <param name="parameters"></param>
/// <returns>Last ID</returns>
public static int Execute(DbDataContext context, string query, Object parameters = null)
{
using (var connection = new SqlConnection(context.ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = query;
if (parameters != null)
{
if (parameters is List<SqlParameter>)
foreach (var parameter in parameters as List<SqlParameter>)
command.Parameters.Add(parameter);
}
if (command.ExecuteNonQuery() == -1)
return (int)Result.Error;
if (query.Contains("DELETE"))
return (int)Result.OperationSuccess;
command.CommandText = "SELECT @@IDENTITY";
try
{
return Convert.ToInt32(command.ExecuteScalar());
}
catch (Exception)
{
return (int)Result.OperationSuccess;
}
}
}
}
public static IEnumerable<ICustomer> GetCustomers(DbDataContext context, string query = null)
{
if (query == null) query = "select * from Customers";
List<ICustomer> customers = null;
using (var connection = new SqlConnection(context.ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = query;
var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
while (reader.Read())
{
if (customers == null) customers = new List<ICustomer>();
ICustomer customer = new Customer();
customer.Id = reader.GetInt32(0);
customer.FirstName = reader.GetString(1);
customer.LastName = reader.GetString(2);
customer.UserName = reader.GetString(3);
customer.Password = reader.GetString(4);
customer.Email = reader.GetString(5);
if (reader.GetValue(6) != DBNull.Value)
customer.CreatedDate = (DateTime) reader.GetValue(6);
customer.Address = reader.GetValue(7) != DBNull.Value ? reader.GetString(7) : "";
customer.Sex = reader.GetValue(8) != DBNull.Value ? reader.GetString(8) : "";
customer.Phone = reader.GetValue(9) != DBNull.Value ? reader.GetString(9) : "";
customers.Add(customer);
}
}
}
return customers;
}
public CustomerRepository(DbDataContext dbDataContext)
{
_context = dbDataContext;
}
public static IEnumerable<IProductsCustomers> GetProductsCustomers(DbDataContext context, string query = null)
{
if (query == null) query = "select * from ProductsCustomers";
using (var connection = new SqlConnection(context.ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = query;
var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
var productsCustomersList = new List<IProductsCustomers>();
while(reader.Read())
{
IProductsCustomers productsCustomers = new ProductsCustomers();
productsCustomers.CustomerId = reader.GetInt32(1);
productsCustomers.ProductId = reader.GetInt32(2);
productsCustomers.Count = reader.GetInt32(3);
productsCustomersList.Add(productsCustomers);
}
return productsCustomersList;
}
}
}
public static IEnumerable<IProduct> GetProducts(DbDataContext context, string query = null)
{
if (query == null) query = "select * from Products";
using (var connection = new SqlConnection(context.ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = query;
var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
List<IProduct> products = null;
while (reader.Read())
{
if (products == null) products = new List<IProduct>();
IProduct product = new Product
{
Id = reader.GetInt32(0),
Name = reader.GetString(1),
IsAvailable = (bool)reader.GetValue(2),
Cost = (decimal) reader.GetValue(3)
};
var img = (byte[])(reader[4]);
product.Image = img;
product.Description = reader.GetString(5);
products.Add(product);
}
return products;
}
}
}
public static IEnumerable<IOrder> GetOrders(DbDataContext context, string query = null)
{
if (query == null) query = "select * from Orders";
using (var connection = new SqlConnection(context.ConnectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = query;
var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
List<IOrder> orders = null;
while (reader.Read())
{
if (orders == null) orders = new List<IOrder>();
var order = new Order
{
CustomerId = reader.GetInt32(1),
ProductId = reader.GetInt32(2),
Count = reader.GetInt32(3),
OrderDateTime = (DateTime) reader.GetValue(4)
};
orders.Add(order);
}
return orders;
}
}
}
public ProductsCustomersRepository(DbDataContext dbDataContext)
{
_context = dbDataContext;
}
public ProductRepository(DbDataContext dbDataContext)
{
_context = dbDataContext;
}
