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); } }