public static List <Review> ShowAllReviews()
{
RestaurantReviewP0Entities db = new RestaurantReviewP0Entities();
List <Review> lsLocalList = new List <Review>();
try
{
lsLocalList = db.Reviews.ToList();
}
catch (InvalidOperationException ioe)
{
Console.WriteLine("Exception handled:\n" + ioe.Message);
Console.WriteLine("Stack Trace:\n" + ioe.StackTrace);
}
catch (SystemException se)
{
Debug.WriteLine("Exception handled:\n" + se.Message);
Debug.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);
}
// method to get reviews
public static List <Review> ShowReviewsForRestaurant(string sRestName)
{
RestaurantReviewP0Entities db = new RestaurantReviewP0Entities();
List <Review> lsAllReviews = ShowAllReviews();
List <Review> localReviewList = new List <Review>();
try
{
localReviewList = (from r in lsAllReviews
where r.rName == sRestName
select r).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(localReviewList);
}
public static int GetRestaurantId(string rName)
{
using (var db = new RestaurantReviewP0Entities())
{
return(db.Restaurants.SingleOrDefault(r => r.rName == rName).rId);
}
}
public static void InsertReviewIntoDB(string sRestName, string sAddress,
decimal dRating, string sRevSummary, int iFk_RId)
{
RestaurantReviewP0Entities db;
Review localReview = new Review()
{
rName = sRestName,
rAddress = sAddress,
rRating = dRating,
rSummary = sRevSummary,
fk_rId = iFk_RId
};
try
{
using (db = new RestaurantReviewP0Entities())
{
db.Reviews.Add(localReview);
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);
}
}
public static void UpdateReviewInDB(string sRestName, string sAddress,
decimal dRating, string sSummary)
{
Review localReview;
try
{
using (var db = new RestaurantReviewP0Entities())
{
localReview = db.Reviews.Single(x => x.rName == sRestName);
localReview.rRating = dRating;
localReview.rSummary = sSummary;
db.Reviews.Attach(localReview);
db.Entry(localReview).State = EntityState.Modified;
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 update record into database
public static void UpdateRestaurantInDB(string sRestName, string sAddress)
{
Restaurant localRestaurant;
RestaurantReviewP0Entities db;
try
{
using (db = new RestaurantReviewP0Entities())
{
localRestaurant = db.Restaurants.Single(x => x.rName == sRestName);
localRestaurant.rName = sRestName;
localRestaurant.rAddress = sAddress;
db.Restaurants.Attach(localRestaurant);
db.Entry(localRestaurant).State = EntityState.Modified;
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);
}
}
// method to insert record into database
public static void InsertRestaurantIntoDB(string sRestName, string sAddress)
{
RestaurantReviewP0Entities db;
Restaurant restaurant = new Restaurant()
{
rName = sRestName,
rAddress = sAddress,
rAvgRating = 0.0m
};
try
{
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);
}
}
public static void DeleteReviewFromDB(string sRestName, decimal dRating, string sSummary)
{
RestaurantReviewP0Entities db;
var lsReviews = ShowAllReviews();
try
{
using (db = new RestaurantReviewP0Entities())
{
var query = (from r in lsReviews
where r.rName == sRestName && r.rRating == dRating && r.rSummary == sSummary
select r);
db.Reviews.Attach((Review)query);
db.Entry(query).State = EntityState.Deleted;
db.Reviews.Remove((Review)query);
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);
}
}
// method to delete record into database
public static void DeleteRestaurantFromDB(string sRestName)
{
//List<Restaurant> lsRestaurants = ShowAllRestaurants();
RestaurantReviewP0Entities db;
//List<Review> lsAllReviews = ShowAllReviews();
try
{
using (db = new RestaurantReviewP0Entities())
{
Restaurant r = db.Restaurants.SingleOrDefault(x => x.rName == sRestName);
db.Restaurants.Attach(r);
//db.Entry(r).State = EntityState.Deleted;
db.Restaurants.Remove(r);
db.SaveChanges();
}
}
catch (DbUpdateConcurrencyException duce)
{
Console.WriteLine("Exception handled:\n" + duce.Message);
Console.WriteLine("Stack Trace:\n" + duce.StackTrace);
Debug.WriteLine(duce.InnerException.Message);
Debug.WriteLine(duce.InnerException);
}
catch (SqlException se)
{
Console.WriteLine("Exception handled:\n" + se.Message);
Console.WriteLine("Stack Trace:\n" + se.StackTrace);
Debug.WriteLine(se.InnerException.Message);
Debug.WriteLine(se.InnerException);
}
catch (DbException de)
{
Console.WriteLine("Exception handled:\n" + de.Message);
Console.WriteLine("Stack Trace:\n" + de.StackTrace);
Debug.WriteLine(de.InnerException.Message);
Debug.WriteLine(de.InnerException);
}
catch (ExternalException ee)
{
Console.WriteLine("Exception handled:\n" + ee.Message);
Console.WriteLine("Stack Trace:\n" + ee.StackTrace);
Debug.WriteLine(ee.InnerException.Message);
Debug.WriteLine(ee.InnerException);
}
catch (SystemException syse)
{
Console.WriteLine("Exception handled:\n" + syse.Message);
Console.WriteLine("Stack Trace:\n" + syse.StackTrace);
Console.WriteLine(syse.InnerException.Message);
Console.WriteLine(syse.InnerException);
}
catch (Exception e)
{
Console.WriteLine("Exception handled:\n" + e.Message);
Console.WriteLine("Stack Trace:\n" + e.StackTrace);
Debug.WriteLine(e.InnerException.Message);
Debug.WriteLine(e.InnerException);
}
}