public List <Product> GetProductsCheaperThan(float price)
{
using (var db = new ShopDataContext())
{
return(db.Products.Where(product => product.Price < price).ToList());
}
}
public int GetNumberOfClients()
{
using (var db = new ShopDataContext())
{
return(db.Clients.Select(client => client).ToList().Count);
}
}
public List <Product> GetProductsMoreExpensiveThan(float price)
{
using (var db = new ShopDataContext())
{
return(db.Products.Where(product => product.Price > price).ToList());
}
}
public List <Product> GetProductsByPrice(float price)
{
using (var db = new ShopDataContext())
{
return(db.Products.Where(product => product.Price.Equals(price)).ToList());
}
}
public Product GetLastProduct()
{
using (var db = new ShopDataContext())
{
return(db.Products.Select(product => product).ToList().LastOrDefault());
}
}
public Product GetProductById(int id)
{
using (var db = new ShopDataContext())
{
return(db.Products.FirstOrDefault(product => product.Id.Equals(id)));
}
}
public List <Product> GetProductsByCategory(ProductCategory category)
{
using (var db = new ShopDataContext())
{
return(db.Products.Where(product => product.Category.Equals(category)).ToList());
}
}
public List <ProductCategory> GetAllCategories()
{
using (var db = new ShopDataContext())
{
return(db.ProductCategories.Select(category => category).ToList());
}
}
public ProductCategory GetCategoryByName(string category)
{
using (var db = new ShopDataContext())
{
return(db.ProductCategories.FirstOrDefault(c => c.Category.Equals(category)));
}
}
public PurchaseEvent GetMostRecentPurchase()
{
using (var db = new ShopDataContext())
{
return(db.PurchaseEvents.Select(p => p).ToList().LastOrDefault());
}
}
public Client GetClientById(int id)
{
using (var db = new ShopDataContext())
{
return(db.Clients.FirstOrDefault(client => client.Id.Equals(id)));
}
}
public Product GetProductByName(string name)
{
using (var db = new ShopDataContext())
{
return(db.Products.FirstOrDefault(product => product.ProductName.Equals(name)));
}
}
public Client GetLastClient()
{
using (var db = new ShopDataContext())
{
return(db.Clients.Select(client => client).ToList().LastOrDefault());
}
}
public PurchaseEvent GetPurchaseEventById(int id)
{
using (var db = new ShopDataContext())
{
return(db.PurchaseEvents.FirstOrDefault(ev => ev.Id.Equals(id)));
}
}
public List <PurchaseEvent> GetPurchaseEventsByProductId(int id)
{
using (var db = new ShopDataContext())
{
return(db.PurchaseEvents.Where(ev => ev.ProductId.Equals(id)).ToList());
}
}
public List <PurchaseEvent> GetAllPurchaseEvents()
{
using (var db = new ShopDataContext())
{
return(db.PurchaseEvents.Select(ev => ev).ToList());
}
}
public List <Client> GetAllClients()
{
using (var db = new ShopDataContext())
{
return(db.Clients.Select(client => client).ToList());
}
}
public List <Product> GetAllProducts()
{
using (var db = new ShopDataContext())
{
return(db.Products.Select(product => product).ToList());
}
}
public void AddProduct(Product product)
{
using (var db = new ShopDataContext())
{
db.Products.InsertOnSubmit(product);
db.SubmitChanges();
}
}
public void AddClient(Client client)
{
using (var db = new ShopDataContext())
{
db.Clients.InsertOnSubmit(client);
db.SubmitChanges();
}
}
public void AddPurchaseEvent(PurchaseEvent e)
{
using (var db = new ShopDataContext())
{
db.PurchaseEvents.InsertOnSubmit(e);
db.SubmitChanges();
}
}
public Client GetClientByCredentials(string firstName, string lastName)
{
using (var db = new ShopDataContext())
{
return(db.Clients
.FirstOrDefault(client => (client.FirstName.Equals(firstName) &&
(client.LastName.Equals(lastName)))));
}
}
public PurchaseEvent GetMostRecentByClientIdAndProductId(int clientId, int productId)
{
using (var db = new ShopDataContext())
{
return(db.PurchaseEvents.Where(p =>
(p.ClientId.Equals(clientId) && (p.ProductId.Equals(productId))))
.ToList().LastOrDefault());
}
}
public void DeleteProduct(int id)
{
using (var db = new ShopDataContext())
{
Product productToDelete = db.Products.FirstOrDefault(product => product.Id.Equals(id));
if (productToDelete != null)
{
db.Products.DeleteOnSubmit(productToDelete);
db.SubmitChanges();
}
}
}
public void DeleteClient(int id)
{
using (var db = new ShopDataContext())
{
Client clientToDelete = db.Clients.FirstOrDefault(client => client.Id.Equals(id));
if (clientToDelete != null)
{
db.Clients.DeleteOnSubmit(clientToDelete);
db.SubmitChanges();
}
}
}
public void DeletePurchaseEvent(int id)
{
using (var db = new ShopDataContext())
{
PurchaseEvent eventToDelete = db.PurchaseEvents.FirstOrDefault(e => e.Id.Equals(id));
if (eventToDelete != null)
{
db.PurchaseEvents.DeleteOnSubmit(eventToDelete);
db.SubmitChanges();
}
}
}
public void UpdateClient(Client client)
{
using (var db = new ShopDataContext())
{
Client clientToUpdate = db.Clients.FirstOrDefault(c => c.Id.Equals(client.Id));
if (clientToUpdate != null)
{
clientToUpdate.FirstName = client.FirstName;
clientToUpdate.LastName = client.LastName;
db.SubmitChanges();
}
}
}
public void UpdateProduct(Product p)
{
using (var db = new ShopDataContext())
{
Product productToUpdate = db.Products.FirstOrDefault(product => product.Id.Equals(p.Id));
if (productToUpdate != null)
{
productToUpdate.ProductName = p.ProductName;
productToUpdate.Category = p.Category;
productToUpdate.Price = p.Price;
db.SubmitChanges();
}
}
}
