// method to get reviews
public static List <Review> ShowRestaurantReviews(string _sRestaurant)
{
List <Review> lsReviews = new List <Review>();
try
{
RestaurantReviewP0Entities db = new RestaurantReviewP0Entities();
lsReviews = db.Restaurants.ToList().SingleOrDefault(x => x.rName == _sRestaurant).Reviews.ToList();
}
catch (InvalidOperationException ioe)
{
Console.WriteLine("Exception handled:\n" + ioe.Message);
Console.WriteLine("Stack Trace:\n" + ioe.StackTrace);
}
catch (SystemException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
}
return(lsReviews);
}
// method to get restaurants
public static List <Restaurant> ShowAllRestaurants()
{
List <Restaurant> lsLocalList = new List <Restaurant>();
try
{
RestaurantReviewP0Entities db = new RestaurantReviewP0Entities();
lsLocalList = db.Restaurants.ToList();
}
catch (InvalidOperationException ioe)
{
Console.WriteLine("Exception handled:\n" + ioe.Message);
Console.WriteLine("Stack Trace:\n" + ioe.StackTrace);
}
catch (SystemException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
}
return(lsLocalList);
}
public static void InsertReviewIntoDB(string sRName, string sRvAddress, decimal dRvRating,
string sRvSummary, int iForeignKey)
{
try
{
RestaurantReviewP0Entities db;
using (db = new RestaurantReviewP0Entities())
{
Review review = new Review()
{
rName = sRName,
rAddress = sRvAddress,
rRating = dRvRating,
rSummary = sRvSummary,
fk_rId = iForeignKey
};
db.Reviews.Add(review);
db.SaveChanges();
}
}
catch (DbUpdateException se)
{
Debug.WriteLine("Exception handled:\n" + se.Message);
Debug.WriteLine("Stack Trace:\n" + se.StackTrace);
Debug.WriteLine(se.InnerException.Message);
Debug.WriteLine(se.InnerException);
}
catch (SqlException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (DbException de)
{
Console.WriteLine("Exception handled:\n" + de.Message);
Console.WriteLine("Stack Trace:\n" + de.StackTrace);
}
catch (ExternalException ee)
{
Console.WriteLine("Exception handled:\n" + ee.Message);
Console.WriteLine("Stack Trace:\n" + ee.StackTrace);
}
catch (SystemException syse)
{
Console.WriteLine("Exception handled:\n" + syse.Message);
Console.WriteLine("Stack Trace:\n" + syse.StackTrace);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
}
}
// method to insert record into database
public static int InsertRestaurantIntoDB(string sRName, string sRAddress, decimal dAvgRating)
{
RestaurantDataLayer.Restaurant restaurant = new RestaurantDataLayer.Restaurant()
{
rName = sRName,
rAddress = sRAddress,
rAvgRating = dAvgRating
};
try
{
RestaurantReviewP0Entities db;
using (db = new RestaurantReviewP0Entities())
{
db.Restaurants.Add(restaurant);
db.SaveChanges();
}
}
catch (DbUpdateException se)
{
Debug.WriteLine("Exception handled:\n" + se.Message);
Debug.WriteLine("Stack Trace:\n" + se.StackTrace);
Debug.WriteLine(se.InnerException.Message);
Debug.WriteLine(se.InnerException);
}
catch (SqlException se)
{
Debug.WriteLine("Exception handled:\n" + se.Message);
Debug.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (DbException de)
{
Debug.WriteLine("Exception handled:\n" + de.Message);
Debug.WriteLine("Stack Trace:\n" + de.StackTrace);
}
catch (ExternalException ee)
{
Console.WriteLine("Exception handled:\n" + ee.Message);
Console.WriteLine("Stack Trace:\n" + ee.StackTrace);
}
catch (SystemException syse)
{
Console.WriteLine("Exception handled:\n" + syse.Message);
Console.WriteLine("Stack Trace:\n" + syse.StackTrace);
}
catch (Exception e)
{
Debug.WriteLine("Exception handled:\n" + e.Message);
Debug.WriteLine("Stack Trace:\n" + e.StackTrace);
}
return(restaurant.rId);
}
// method to delete record into database
public static void DeleteRestaurantFromDB(string sRestaurantInput)
{
try
{
RestaurantReviewP0Entities db;
using (db = new RestaurantReviewP0Entities())
{
Restaurant restaurant = db.Restaurants.SingleOrDefault(x => x.rName == sRestaurantInput);
db.Restaurants.Attach(restaurant);
db.Entry(restaurant).State = EntityState.Deleted;
db.Restaurants.Remove(restaurant);
db.SaveChanges();
}
}
catch (DbUpdateConcurrencyException duce)
{
Console.WriteLine("Exception handled:\n" + duce.Message);
Console.WriteLine("Stack Trace:\n" + duce.StackTrace);
}
catch (SqlException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (DbException de)
{
Console.WriteLine("Exception handled:\n" + de.Message);
Console.WriteLine("Stack Trace:\n" + de.StackTrace);
}
catch (ExternalException ee)
{
Console.WriteLine("Exception handled:\n" + ee.Message);
Console.WriteLine("Stack Trace:\n" + ee.StackTrace);
}
catch (SystemException syse)
{
Console.WriteLine("Exception handled:\n" + syse.Message);
Console.WriteLine("Stack Trace:\n" + syse.StackTrace);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
}
}
public static void DeleteReviewFromDB(string sRName, string sRSummary)
{
try
{
RestaurantReviewP0Entities db = new RestaurantReviewP0Entities();
Review review = db.Reviews.SingleOrDefault(x => x.rName == sRName);
db.Reviews.Attach(review);
db.Entry(review).State = EntityState.Deleted;
db.Reviews.Remove(review);
db.SaveChanges();
}
catch (SqlException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
}
catch (DbException de)
{
Console.WriteLine("Exception handled:\n" + de.Message);
Console.WriteLine("Stack Trace:\n" + de.StackTrace);
}
catch (ExternalException ee)
{
Console.WriteLine("Exception handled:\n" + ee.Message);
Console.WriteLine("Stack Trace:\n" + ee.StackTrace);
}
catch (SystemException syse)
{
Console.WriteLine("Exception handled:\n" + syse.Message);
Console.WriteLine("Stack Trace:\n" + syse.StackTrace);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
}
}
