/// <summary>
/// Gets suggested Dishes based on User History
/// First builds a dictionary for metascores, then find all potential dishes
/// It then computes a score for each of the dishes based on the metascore values
/// Finally sorts and returns the best 10 dishes
/// </summary>
/// <param name="u"></param>
/// <param name="r"></param>
public static List<KeyValuePair<menu_item, int>> GetSuggestions(user u, restaurant r)
{
totalOrdersCount = 0;
totalOrderItemsCount = 0;
totalReviewsCount = 0;
metaDataCount = 0;
List<menu> menus = db.menus.Where(m => m.is_active == true && m.is_deleted == false && m.resto_id == r.id).ToList();
List<menu_category> menu_categories = new List<menu_category>();
List<menu_item> menu_items_available = new List<menu_item>();
Dictionary<menu_item, int> ItemScores;
Dictionary<string, int[]> MetaScores;
//Build the Metascores using all past orders and reviews
MetaScores = BuildMetaScores(u);
//Find all available items we can order
foreach (menu m in menus)
{
menu_categories.AddRange(m.menu_category.Where(mc => mc.is_active == true && mc.is_deleted == false));
}
foreach (menu_category mc in menu_categories)
{
menu_items_available.AddRange(mc.menu_item.Where(mi => mi.is_active == true && mi.is_deleted == false));
}
//Give a score to every potential menu item currently available
ItemScores = CalculateItemScores(MetaScores, menu_items_available);
return SortByScore(ItemScores);
}
public Boolean edit(user user)
{
UserIM im = new UserIM(db);
user dbVersion =im.find(user.id);
if (dbVersion.version == user.version)
{
user.current_table_id = dbVersion.current_table_id;
// If password was blank (only editing details) make sure we keep it the same
if (user.password == null)
{
user.password = dbVersion.password;
user.ConfirmPassword = user.password;
}
// If the user's role is null (happens if the user is editing his/her own details)
if (user.user_role == null)
user.user_role = dbVersion.user_role;
((IObjectContextAdapter)db).ObjectContext.Detach(dbVersion);
db.Entry(user).State = EntityState.Modified;
user.version = user.version + 1;
db.SaveChanges();
return true;
}
return false;
}
/**
* Filters the categories and only returns those that are not already assigned to the menu
* that is passed in.
* */
public static order getOpenOrder(user usr)
{
touch_for_foodEntities db = new touch_for_foodEntities();
order o;
var models = db.orders
.Where(p => p.order_status == (int)OrderStatusHelper.OrderStatusEnum.PLACED || p.order_status == (int)OrderStatusHelper.OrderStatusEnum.EDITING || p.order_status == (int)OrderStatusHelper.OrderStatusEnum.PROCESSING)
.Where(p=>p.user_id == usr.id)
.OrderByDescending(p=>p.timestamp)
.ToList()
.Select(item =>
new order
{
id = item.id,
timestamp = item.timestamp,
total = item.total,
order_status = item.order_status,
order_item = item.order_item,
user = item.user,
table = item.table
}).AsQueryable();
if (models.Any())
{
o = models.ToArray()[0];
return o;
}
return null;
}
public static void MyClassInitialize(TestContext testContext)
{
//Add test data (order specific)
testDatabase = new TestDatabaseHelper();
restaurant1 = testDatabase.AddRestaurant();
table1 = testDatabase.AddTable(restaurant1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
}
public ActionResult Create(user user)
{
if (ModelState.IsValid)
{
// Add the customer role to the new user object
user.user_role = (int)SiteRoles.Customer;
// Encrypt the user's password
AES aes = new AES();
user.password = aes.EncryptToString(user.password);
user.ConfirmPassword = aes.EncryptToString(user.ConfirmPassword);
// Try to add the user to the database and save the changes
// Exception is thrown in case of errors (ex: unique field value is not respected)
try
{
if (!om.Create(user))
{
return View("Create");
}
}
catch (DbUpdateException e)
{
HandleDbUpdateException(e);
// Return to the original page we were at. Any errors added into the model will be shown automatically by the view
return View("Create");
}
catch (Exception)
{
ViewBag.Error = Global.ServerError;
return View("Create");
}
// Create a cookie with our user information
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, user.username,
DateTime.Now, DateTime.Now.AddDays(1),
false, user.id.ToString(), FormsAuthentication.FormsCookiePath);
// Now that the user was properly created we can add the customer role to the session
HttpContext.Session["role"] = SiteRoles.Customer;
// Encrypt the ticket
string hashedTicket = FormsAuthentication.Encrypt(ticket);
// Create the new cookie and add it into the response
Response.Cookies.Add(new HttpCookie(FormsAuthentication.FormsCookieName, hashedTicket));
return RedirectToAction("Index", "Home");
}
// If we got to this point then something went wrong
ViewBag.Error = Global.ServerError;
return View("Create");
}
public static void MyClassInitialize(TestContext testContext)
{
//Add test data (order specific)
testDatabase = new TestDatabaseHelper();
restaurant1 = testDatabase.AddRestaurant();
table1 = testDatabase.AddTable(restaurant1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
//Session
db = new touch_for_foodEntities();
target = new HomeController();
Session session = new Session(db, target);
session.simulateLogin(user1.username, user1.password);
}
/// <summary>
/// Creates a friendship entity
/// </summary>
/// <param name="user1">The first user in the friendship</param>
/// <param name="user2">The second user in the friendship</param>
/// <returns>the created friendship entity</returns>
public friendship AddFriendship(user user1, user user2)
{
//Initialise
db = new touch_for_foodEntities();
friendship testFriendship = new friendship();
//Set Attributes
testFriendship.first_user = user1.id;
testFriendship.second_user = user2.id;
//Save
db.friendships.Add(testFriendship);
db.SaveChanges();
db.Dispose();
return testFriendship;
}
/// <summary>
/// Writes a restaurant obejct to the database
/// </summary>
/// <param name="restaurant">The restaurant object to write</param>
/// <param name="user">The user to associate as owner to the restaurant</param>
/// <returns>True if successful, false otherwise</returns>
/// <exception cref="InvalidOperationException"></exception>
public bool Create(restaurant restaurant, user user)
{
if (user == null) return false;
db.restaurants.Add(restaurant);
if (db.SaveChanges() == 0) return false;
// assign the user to this restaurant.
restaurant_user ru = new restaurant_user();
ru.user_id = user.id;
ru.restaurant_id = restaurant.id;
db.restaurant_user.Add(ru);
if (db.SaveChanges() == 0)
{
// Remove the restaurant because the owner could not be assigned to it.
delete(restaurant.id);
return false;
}
return true;
}
public static void MyClassInitialize(TestContext testContext)
{
//Add test data (order specific)
testDatabase = new TestDatabaseHelper();
restaurant1 = testDatabase.AddRestaurant();
table1 = testDatabase.AddTable(restaurant1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
order1 = testDatabase.AddOrder(table1);
item1 = testDatabase.AddItem();
category1 = testDatabase.AddCategory();
menu1 = testDatabase.AddMenu(restaurant1);
menuCategory1 = testDatabase.AddMenuCategory(category1, menu1);
menuItem1 = testDatabase.AddMenuItem(item1, menuCategory1);
//Session
db = new touch_for_foodEntities();
BillController target = new BillController();
Session session = new Session(db, target);
session.simulateLogin(user1.username, user1.password);
}
/// <summary>
/// Removes a user item from the database.
/// </summary>
/// <param name="userEntity">The user to be removed.</param>
public void RemoveUser(user userEntity)
{
db = new touch_for_foodEntities();
if (db.users.Find(userEntity.id) != null)
{
db.users.Remove(db.users.Find(userEntity.id));
db.SaveChanges();
}
db.Dispose();
}
/// <summary>
/// Builds up the meta score dictionary which associates data to each metadata word
/// The Values of this Dictionary are
/// 0 - Total times found (count)
/// 1 - Total times rated (rated)
/// 2 - Total Rating value (sum)
/// </summary>
/// <param name="u"></param>
private static Dictionary<string, int[]> BuildMetaScores(user u)
{
List<order> Orders = u.orders.Where(o => o.order_status == (int)OrderStatusHelper.OrderStatusEnum.COMPLETE).ToList();
//List<order> Orders = u.orders.ToList();
Dictionary<string, int[]> MetaScores = new Dictionary<string, int[]>();
foreach (order o in Orders)
{
UserUtil.totalOrdersCount++;
foreach (order_item oi in o.order_item)
{
int reviewRating = 0;
if (oi.review_order_item.Count() > 0)
{
reviewRating = (int)oi.review_order_item.First().rating;
}
totalOrderItemsCount++;
string metaData = oi.menu_item.item.metadata;
string[] metaWords = null;
if (metaData != null)
{
metaWords = metaData.Split(' ');
}
foreach (string word in metaWords)
{
metaDataCount++;
if (MetaScores.ContainsKey(word))
{
MetaScores[word][0]++;
}
else
{
MetaScores[word] = new int[]{1,0,0};
}
if (reviewRating != 0)
{
MetaScores[word][1]++;
MetaScores[word][2] += reviewRating;
}
}
}
}
return MetaScores;
}
public void MyTestInitialize()
{
//Add test data (order specific)
restaurant1 = testDatabase.AddRestaurant();
restaurant2 = new restaurant();
table1 = testDatabase.AddTable(restaurant1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
restaurantUser1 = testDatabase.AddRestaurantUser(user1, restaurant1);
menu1 = testDatabase.AddMenu(restaurant1);
order1 = testDatabase.AddOrder(table1);
review1 = testDatabase.AddReview(restaurant1, order1, user1);
//Session
db = new touch_for_foodEntities();
target = new RestaurantController();
Session session = new Session(db, target);
session.simulateLogin(user1.username, user1.password);
}
/// <summary>
/// Creates an entry of type restaurant_user in the database.
/// </summary>
/// <param name="testUser">User user_restaurant is associated to.</param>
/// <param name="testRestaurant">Restaurant user_restaurant is associated to.</param>
/// <returns>The created restaurant_user entity.</returns>
public restaurant_user AddRestaurantUser(user testUser, restaurant testRestaurant)
{
//Initialise
db = new touch_for_foodEntities();
restaurant_user testRestaurantUser = new restaurant_user();
//Set Attributes
testRestaurantUser.user_id= testUser.id;
testRestaurantUser.restaurant_id = testRestaurant.id;
//Save
db.restaurant_user.Add(testRestaurantUser);
db.SaveChanges();
db.Dispose();
return testRestaurantUser;
}
public void MyTestInitialize()
{
//Add test data (order specific)
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
user2 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
user3 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
friendship1 = testDatabase.AddFriendship(user1, user2);
friendship2 = new friendship();
friendship2.first_user = user1.id;
friendship2.second_user = user3.id;
}
public void MyTestInitialize()
{
//Add test data (order specific)
restaurant1 = testDatabase.AddRestaurant();
table1 = testDatabase.AddTable(restaurant1);
table2 = new table();
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Restaurant);
order1 = testDatabase.AddOrder(table1);
request1 = testDatabase.AddServiceRequest(table1);
restaurantUser1 = testDatabase.AddRestaurantUser(user1, restaurant1);
//Session
db = new touch_for_foodEntities();
target = new TableController();
Session session = new Session(db, target);
session.simulateLogin(user1.username, user1.password);
}
/// <summary>
/// Writes a user object to the database
/// </summary>
/// <param name="user">The user object to write</param>
/// <returns>True if successful, false otherwise</returns>
/// <exception cref="InvalidOperationException"></exception>
/// <exception cref="DBEntityValidationException"></exception>
/// <exception cref="DbUpdateException"></exception>
public bool Create(user user)
{
db.users.Add(user);
return (db.SaveChanges() == 1);
}
/// <summary>
/// Writes a review object to the database associated with a user
/// </summary>
/// <param name="review">The review object to write</param>
/// <param name="user">The user to associate the review with</param>
/// <returns>True if successful, false otherwise</returns>
public bool Create(review review, user user)
{
review.user_id = user.id;
return Create(review);
}
public PartialViewResult GetAllReviews(user u)
{
List<review_order_item> reviews = new List<review_order_item>();
foreach (review rev in u.reviews)
{
reviews.AddRange(rev.review_order_item);
}
reviews.OrderByDescending(r => r.submitted_on).ToList();
return PartialView("PastReviewsPartial", reviews);
}
public void MyTestInitialize()
{
//Add test data (order specific)
restaurant1 = testDatabase.AddRestaurant();
table1 = testDatabase.AddTable(restaurant1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
user3 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Customer);
friendship1 = testDatabase.AddFriendship(user1, user3);
restaurantUser1 = testDatabase.AddRestaurantUser(user1, restaurant1);
order1 = testDatabase.AddOrder(table1);
// Create a valid user object with test values
user2 = new user();
user2.username = "******";
user2.password = "******";
user2.ConfirmPassword = "******";
user2.first_name = "*****@*****.**";
user2.last_name = "*****@*****.**";
user2.email = "*****@*****.**";
user2.image_url = null;
user2.current_table_id = table1.id;
}
/// <summary>
/// Creates an entry of type review in the database.
public review AddReview(restaurant r, order o, user u)
{
//Initialise
db = new touch_for_foodEntities();
review testReview = new review();
//Set attributes
testReview.is_anonymous = false;
testReview.order_id = o.id;
testReview.restaurant_id = r.id;
testReview.user_id = u.id;
testReview.rating = 0;
//Save
db.reviews.Add(testReview);
db.SaveChanges();
db.Dispose();
return testReview;
}
/// <summary>
/// Creates an entry of type user in the database.
/// </summary>
/// <param name="username">A unique string to represent the user.</param>
/// <param name="currentTable">A table in the restaurant.</param>
/// <param name="userRole">The role of the user (ex: Administrator, Client)</param>
/// <returns>The created user entity.</returns>
public user AddUser(string email, table currentTable, int userRole)
{
//Initialise
db = new touch_for_foodEntities();
user testUser = new user();
//Set attributes
testUser.username = email;
// Make sure the password is encrypted
AES aes = new AES();
testUser.password = aes.EncryptToString(email);
testUser.ConfirmPassword = aes.EncryptToString(email);
testUser.first_name = email;
testUser.last_name = email;
testUser.email = email;
testUser.image_url = email;
testUser.current_table_id = currentTable.id;
testUser.version = 1;
testUser.user_role = userRole;
//Save
db.users.Add(testUser);
db.SaveChanges();
db.Dispose();
return testUser;
}
public static void MyClassInitialize(TestContext testContext)
{
testDatabase = new TestDatabaseHelper();
//Add test data (order specific)
item1 = testDatabase.AddItem();
category1 = testDatabase.AddCategory();
restaurant1 = testDatabase.AddRestaurant();
menu1 = testDatabase.AddMenu(restaurant1);
menuCategory1 = testDatabase.AddMenuCategory(category1, menu1);
table1 = testDatabase.AddTable(restaurant1);
order1 = testDatabase.AddOrder(table1);
user1 = testDatabase.AddUser("*****@*****.**", table1, (int)SiteRoles.Admin);
review1 = testDatabase.AddReview(restaurant1, order1, user1);
}
public ActionResult Edit(user user, HttpPostedFileBase file)
{
// Get array of errors (if any)
var errors = ModelState.Where(x => x.Value.Errors.Count > 0)
.Select(x => new { x.Key, x.Value.Errors })
.ToArray();
// Only allow entry if the ModelState is valid or if we have an invalid ModelState that's caused by a blank (null) password
if (ModelState.IsValid ||
(!ModelState.IsValid && errors.Length == 1
&& errors[0].Key.Equals("password", StringComparison.Ordinal)
&& (user.password == null && user.ConfirmPassword == null)))
{
try
{
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/uploads/user_images/"), "user_" + user.id + Path.GetExtension(fileName));
//Save the file in given location
file.SaveAs(path);
//Update the db to show where profile image is located
user.image_url = Path.Combine("~/uploads/user_images/", "user_" + user.id + Path.GetExtension(fileName));
}
// If the user did enter passwords, we hash them
if (user.password != null && user.ConfirmPassword != null)
{
// Encrypt the user's password
AES aes = new AES();
user.password = aes.EncryptToString(user.password);
user.ConfirmPassword = aes.EncryptToString(user.ConfirmPassword);
}
if (om.edit(user))
return RedirectToAction("Index", "Home");
else
{
ViewBag.Error = Global.VersioningError;
}
}
catch (Exception)
{
ViewBag.Error = Global.ServerError;
}
}
return View(user);
}
