public IList <Customer> SearchCustomers(string keyword)
{
keyword = keyword.ToUpper();
List <Customer> customers = new List <Customer>();
using (var dbContext = new Entities.AdventureWorks2017Context())
{
IEnumerable <Entities.Customer> entities = dbContext.Customer
.Include(c => c.Person)
.Include(c => c.Person.EmailAddress)
.Where(c => c.Person.FirstName.ToUpper().Contains(keyword)
||
c.Person.LastName.ToUpper().Contains(keyword));
foreach (var entity in entities)
{
customers.Add(new Customer()
{
Id = entity.CustomerId,
FirstName = entity.Person.FirstName,
LastName = entity.Person.LastName,
Email = entity.Person.EmailAddress
.Select(ea => ea.EmailAddress1)
.FirstOrDefault()
});
}
}
return(customers);
}
public Customer InsertCustomer(Customer customer)
{
using (var dbContext = new Entities.AdventureWorks2017Context())
{
// Omvormen 'domein' object naar 'entity' object(en).
// Een customer aanmaken komt neer op het opvullen van 3 tabellen!
Entities.Customer customerEntity = new Entities.Customer();
customerEntity.Person = new Entities.Person()
{
PersonType = "IN", // https://www.sqldatadictionary.com/AdventureWorks2014/Person.Person.html
FirstName = customer.FirstName,
LastName = customer.LastName
};
customerEntity.Person.BusinessEntity = new Entities.BusinessEntity()
{
};
customerEntity.Person.EmailAddress.Add(new Entities.EmailAddress()
{
EmailAddress1 = customer.Email
});
// Toevoegen aan DbContext
dbContext.Add(customerEntity);
// Wegschrijven naar database
dbContext.SaveChanges();
// Toegekende ID (door database) in domein object kopiëren.
customer.Id = customerEntity.CustomerId;
return(customer);
}
}
public Stream GenerateAllProductsReport()
{
using (var dbContext = new Entities.AdventureWorks2017Context(_connString))
{
MemoryStream memStream = new MemoryStream();
// Opgelet: hier wordt er rechtstreeks op de entiteiten gewerkt
// en niet op een domain objects.
// Het gebruik van domain objects is niet nodig omdat ProductManager
// enkel rapporten kan aanmaken en dus geen Search, Get, Insert, ... methods heeft.
var products = dbContext.Product
.Include(p => p.ProductSubcategory)
.Where(p => p.ProductSubcategory != null)
.OrderBy(p => p.ProductSubcategory.Name)
.ThenBy(p => p.Name)
.ToList();
Document doc = new Document();
DocumentBuilder docBuilder = new DocumentBuilder(doc);
Paragraph p = docBuilder.InsertParagraph();
p.Runs.Add(new Run(doc, "AdventureWorks Products"));
docBuilder.StartTable();
docBuilder.InsertCell();
docBuilder.Write("ID");
docBuilder.InsertCell();
docBuilder.Write("Product");
docBuilder.InsertCell();
docBuilder.Write("Subcategory");
docBuilder.EndRow();
foreach (var product in products)
{
docBuilder.InsertCell();
docBuilder.Write(product.ProductId.ToString());
docBuilder.InsertCell();
docBuilder.Write(product.Name);
docBuilder.InsertCell();
docBuilder.Write(product.ProductSubcategory.Name);
docBuilder.EndRow();
}
docBuilder.EndTable();
// Document wordt nu bewaard in een memorystream
// (= er wordt geen bestand op het file system aangemaakt).
doc.Save(memStream, SaveFormat.Pdf);
// stream pointer terug aan het begin plaatsen!
memStream.Position = 0;
return(memStream);
}
}
public Customer UpdateCustomer(Customer customer)
{
using (var dbContext = new Entities.AdventureWorks2017Context())
{
var customerEntity = dbContext.Customer
.Include(c => c.Person)
.Include(c => c.Person.EmailAddress)
.Where(c => c.CustomerId == customer.Id)
.FirstOrDefault();
customerEntity.Person.FirstName = customer.FirstName;
customerEntity.Person.LastName = customer.LastName;
customerEntity.Person.EmailAddress.First().EmailAddress1 = customer.Email;
dbContext.SaveChanges();
return(customer);
}
}
public void DeleteCustomer(int id)
{
using (var dbContext = new Entities.AdventureWorks2017Context())
{
var customerEntity = dbContext.Customer
.Include(c => c.Person)
.Include(c => c.Person.EmailAddress)
.Where(c => c.CustomerId == id)
.FirstOrDefault();
foreach (Entities.EmailAddress ea in customerEntity.Person.EmailAddress)
{
dbContext.EmailAddress.Remove(ea);
}
dbContext.Person.Remove(customerEntity.Person);
dbContext.Customer.Remove(customerEntity);
dbContext.SaveChanges();
}
}
public Customer GetCustomer(int id)
{
using (var dbContext = new Entities.AdventureWorks2017Context())
{
Entities.Customer customer = dbContext.Customer
.Include(c => c.Person)
.Include(c => c.Person.EmailAddress)
.Where(c => c.CustomerId == id && c.Person != null)
.FirstOrDefault();
if (customer != null)
{
return(new Customer()
{
Id = customer.CustomerId,
FirstName = customer.Person.FirstName,
LastName = customer.Person.LastName,
Email = customer.Person.EmailAddress
.Select(ea => ea.EmailAddress1)
.FirstOrDefault()
});
}
}
return(null);
}
