public void AddPerson(Person person)
{
using (var context = new PhoneBookContext()){
context.Phonebook.Add(person);
context.SaveChanges();
}
}
public Person FindPerson(string x)
{
using (var context = new PhoneBookContext()){
Person row = context.Phonebook.FirstOrDefault(p => p.Name == x);
return(row);
}
}
public static void CleanUp(PhoneBookContext context)
{
foreach (var person in context.Persons)
{
context.Persons.Remove(person);
}
context.SaveChanges();
context.Database.ExecuteSqlCommandAsync("EXEC sp_MSforeachtable 'DROP TABLE PERSONS");
}
static void Main(string[] args)
{
var context = new PhoneBookContext();
try
{
DatabaseUtil.initializeDatabase(context);
/* TODO: create person objects and put them in the PhoneBook and database
* John Smith, (248) 123-4567, 1234 Sand Hill Dr, Royal Oak, MI
* Cynthia Smith, (824) 128-8758, 875 Main St, Ann Arbor, MI
*/
var John = new Person("John", "Smith", "(248) 123 - 4567", "1234 Sand Hill Dr", "Royal Oak", "MI");
var Cynthia = new Person("Cynthia", "Smith", "(824) 128 - 8758", "875 Main St", "Ann Arbor", "MI");
var phoneBook = new PhoneBook(context);
phoneBook.AddPerson(John);
phoneBook.AddPerson(Cynthia);
// TODO: print the phone book out to System.out
new PhoneBookPrinter().Print(phoneBook);
// TODO: find Cynthia Smith and print out just her entry
var cynthiaRecord = phoneBook.Find(m => m.FirstName == "Cynthia" && m.LastName == "Smith")
.FirstOrDefault();
Console.WriteLine();
Console.WriteLine(cynthiaRecord?.ToString());
// TODO: insert the new person objects into the database
Console.ReadLine();
DatabaseUtil.CleanUp(context);
}
finally
{
DatabaseUtil.CleanUp(context);
}
}
public Person[] FindAll()
{
using (var db = new PhoneBookContext()){
return(db.Phonebook.ToArray());
}
}
public static void initializeDatabase(PhoneBookContext context)
{
context.Database.Migrate();
}