Exemple #1
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 public List <Book> GetAllBooks()
 {
     using (var context = new BooksEntities())
     {
         return(context.Books.ToList().Select(b => Mapper.Map <Book>(b)).ToList());
     }
 }
Exemple #2
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 private static List<Author> ListAuthors()
 {
     using (var db = new BooksEntities())
     {
         List<Author> list = db.Authors.ToList();
         return list;
     }
 }
Exemple #3
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        private static Author SearchAuthorId(int id)
        {
            using (var db = new BooksEntities())
            {
                var name = db.Authors.Find(id);
                return name;
            }

        }
Exemple #4
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 public IHttpActionResult GetFinderBooks(BooksEntities booksEntities)
 {
     using (DBNexosBook db = new DBNexosBook())
     {
         var a = BooksDAL.FinderBook(db, booksEntities);
         booksEntities = a.FirstOrDefault();
     }
     return(Ok(booksEntities));
 }
Exemple #5
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        public List <Set> GetAllSets()
        {
            using (var context = new BooksEntities())
            {
                var res = context.Sets.Include(s => s.BooksSetsBindings.Select(b => b.Books)).ToList();

                return(res.Select(s => Mapper.Map <SetDb, Set>(s)).ToList());
            }
        }
Exemple #6
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 public void Delete(decimal id)
 {
     using (var data = new BooksEntities())
     {
         var my = (from e in data.book select e).Where(z => z.Id.Equals(id)).FirstOrDefault();
         data.book.Remove(my);
         data.SaveChanges();
     }
 }
Exemple #7
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        public List <Category> GetAllCategories()
        {
            using (var context = new BooksEntities())
            {
                var res = context.Categories.Include(s => s.BooksCategoriesBindings.Select(b => b.Books)).ToList();

                return(res.Select(s => Mapper.Map <CategoryDb, Category>(s)).ToList());
            }
        }
Exemple #8
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        private static List<Author> SearchAuthor(string y)
        {
            using (var db = new BooksEntities())
            {
                List<Author> names = (from x in db.Authors where x.FirstName.Contains(y) || x.LastName.Contains(y) select x).ToList();

                return names;

            }
        }
Exemple #9
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        public void Add(Book book)
        {
            using (var context = new BooksEntities())
            {
                var newEnt = Mapper.Map <BookDb>(book);
                context.Books.Add(newEnt);

                context.SaveChanges();
            }
        }
Exemple #10
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 static void Main(string[] args)
 {
     SetDir();
     using (var ctx = new BooksEntities())
     {
         List <Author> authors = ctx.Authors.ToList();
         foreach (Author author in authors)
         {
             author.SSN = RandomString(9);
         }
         ctx.SaveChanges();
     }
 }
Exemple #11
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        /// <summary>
        /// Initializes a new instance of the MainViewModel class.
        /// </summary>
        public MainViewModel()
        {
            BooksEntities dbcontext = new BooksEntities();

            var titleAndAuthors = from title in dbcontext.Titles
                                  from author in title.Authors
                                  orderby title.Title1
                                  select new { title.Title1, author.FirstName, author.LastName };

            Result += "Titles and Authors:";
            foreach (var element in titleAndAuthors)
            {
                Result += String.Format("\r\n\t{0,-10} {1} {2}",
                                        element.Title1, element.FirstName, element.LastName);
            } // end foreach

            var authorsAndTitles = from book in dbcontext.Titles
                                   from author in book.Authors
                                   orderby book.Title1, author.LastName, author.FirstName
                select new { author.FirstName, author.LastName, book.Title1 };

            Result += "\r\n\r\nAuthors and titles with authors sorted for each title:";
            foreach (var element in authorsAndTitles)
            {
                Result += String.Format("\r\n\t{0,-10} {1} {2}",
                                        element.Title1, element.FirstName, element.LastName);
            } // end foreach

            var titlesByAuthor = from book in dbcontext.Titles
                                 orderby book.Title1
                                 select new
            {
                Title       = book.Title1,
                AuthorNames =
                    from author in book.Authors
                    orderby author.LastName, author.FirstName
                select author.FirstName + " " + author.LastName
            };

            Result += "\r\n\r\nTitles grouped by author:";
            foreach (var book in titlesByAuthor)
            {
                Result += "\r\n\t" + book.Title + ":";

                foreach (var Name in book.AuthorNames)
                {
                    Result += "\r\n\t\t" + Name;
                }
            }
        }
        public static BookVM BookToVM(Book book)
        {
            BooksEntities db     = new BooksEntities();
            BookVM        bookVM = new Models.BookVM();

            bookVM.BookID      = book.Id;
            bookVM.Name        = book.Name;
            bookVM.Points      = book.Points;
            bookVM.Discription = book.Discription;

            if (book.City_Id == null)
            {
                bookVM.CityId = null;
            }
            else
            {
                bookVM.CityId   = book.City_Id;
                bookVM.CityName = book.City.Name;
            }
            bookVM.Date_Uploaded  = book.Date_Uploaded;
            bookVM.Subcategory_Id = book.Subcategory_Id;
            bookVM.Images         = new List <string>();

            foreach (var img in book.Images)
            {
                bookVM.Images.Add(img.Img_URL);
            }


            var subcatName =
                (from c in db.SubCategories
                 where c.Id == book.Subcategory_Id
                 select c.Name).FirstOrDefault();

            bookVM.SubCategory = subcatName;

            var booksIDs =
                (from b in db.Seller_Approved_book
                 where b.Approved == "Yes" && b.Book_Id == book.Id
                 select b).FirstOrDefault();

            if (booksIDs != null)
            {
                bookVM.UserID    = booksIDs.User.Id;
                bookVM.User_Name = booksIDs.User.UserName;
            }

            return(bookVM);
        }
Exemple #13
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        private void QueryTableForm_Load(object sender, EventArgs e)
        {
            BooksEntities db = new BooksEntities();
            var           authorsAndTitles = from book in db.Titles
                                             from author in book.Authors
                                             select new { author.FirstName, author.LastName, book.Title };

            outputTxt.AppendText("Authors and Titles:");

            foreach (var element in authorsAndTitles)
            {
                outputTxt.AppendText(String.Format("\r\n\t{0,-10} {1,-10} {2}",
                                                   element.FirstName, element.LastName, element.Title));
            }
        }
Exemple #14
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 public void Update(Book book)
 {
     using (var context = new BooksEntities())
     {
         var bookToUpdate = context.Books.SingleOrDefault(b => b.ID == book.Id);
         if (bookToUpdate != null)
         {
             Mapper.Map(book, bookToUpdate);
             context.SaveChanges();
         }
         else
         {
             throw new DBConcurrencyException();
         }
     }
 }
Exemple #15
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        public void update(BookModel a)
        {
            using (var data = new BooksEntities())
            {
                var my = (from d in data.book where d.Id == a.id select d).FirstOrDefault();
                my.Name        = a.Name;
                my.author      = a.author;
                my.editorial   = a.editorial;
                my.edition     = a.edition;
                my.publication = a.publication;
                my.id_city     = a.id_city;
                my.Country     = a.Country;

                data.SaveChanges();
            }
        }
Exemple #16
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 public void Remove(int id)
 {
     using (var context = new BooksEntities())
     {
         var bookToRemove = context.Books.SingleOrDefault(b => b.ID == id);
         if (bookToRemove != null)
         {
             context.Entry(bookToRemove).State = EntityState.Deleted;
             context.SaveChanges();
         }
         else
         {
             throw new DBConcurrencyException();
         }
     }
 }
Exemple #17
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        //to create a record
        public void Create(BookModel u)
        {
            using (var data = new BooksEntities())
            {
                book bok = new book();
                bok.Name        = u.Name;
                bok.author      = u.author;
                bok.editorial   = u.editorial;
                bok.edition     = u.edition;
                bok.publication = u.publication;
                bok.id_city     = u.id_city;
                bok.Country     = u.Country;

                data.book.Add(bok);
                data.SaveChanges();
            }
        }
Exemple #18
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        public static string AddBook(DBNexosBook db, BooksEntities books)
        {
            if (books.Title == null || books.Gender == null)
            {
                return("Los datos no son correctos");
            }

            AuthorsController    authorsController    = new AuthorsController();
            EditorialsController editorialsController = new EditorialsController();

            var author = db.Authors.Where(x => x.Name == books.Author).FirstOrDefault();

            if (author == null)
            {
                return("El autor no está registrado");
            }

            var editorial = db.Editorials.Where(x => x.Name == books.Editorial).FirstOrDefault();

            if (editorial == null)
            {
                return("La editorial no está registrada");
            }

            if (editorial.CurrenBooks >= editorial.MaxBooks)
            {
                return("La editorial no tiene capacidad para mas libros");
            }

            Books bookUpdate = new Books();

            bookUpdate.Title        = books.Title;
            bookUpdate.CreationDate = books.CreationDate;
            bookUpdate.Gender       = books.Gender;
            bookUpdate.NumPages     = books.NumPages;
            bookUpdate.Id_Author    = author.Id_Author;
            bookUpdate.Id_Editorial = editorial.Id_Editorial;

            db.Books.Add(bookUpdate);
            db.SaveChanges();

            editorial.CurrenBooks += 1;
            editorialsController.PutEditorials(editorial.Id_Editorial, editorial);
            return("El libro fue registrado con exito");
        }
Exemple #19
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        public BookModel Consultbo(decimal Id)
        {
            BookModel re = new BookModel();

            using (var data = new BooksEntities())
            {
                var my = (from c in data.book select c).Where(z => z.Id.Equals(Id)).FirstOrDefault();
                re.id          = my.Id;
                re.Name        = my.Name;
                re.author      = my.author;
                re.editorial   = my.editorial;
                re.edition     = my.edition;
                re.publication = my.publication;
                re.id_city     = my.id_city;
                re.Country     = my.Country;
            }
            return(re);
        }
Exemple #20
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        public string PostBooks(BooksEntities books)
        {
            string response;

            try
            {
                using (DBNexosBook db = new DBNexosBook())
                {
                    response = BooksDAL.AddBook(db, books);
                }
            }
            catch (Exception)
            {
                return("No se pudo hacer el registro, consulte a su administrador");

                throw;
            }
            return(response);
        }
Exemple #21
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        private static void DisplayAuthorsAndISBNs(BooksEntities db)
        {
            var authorsAndISBNs =
                from author in db.Authors
                from title in author.Titles
                orderby author.LastName, author.FirstName
                select new { author.FirstName, author.LastName, title.ISBN };

            var buf = new StringBuilder();

            // display authors and ISBNs in tabular format
            foreach (var element in authorsAndISBNs)
            {
                buf.Append($"\r\n\t{element.FirstName,-10} " +
                           $"{element.LastName,-10} {element.ISBN,-10}");
            }

            Console.WriteLine(buf.ToString());
        }
Exemple #22
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        private static void Main(string[] args)
        {
            var r = new Random();

            using (var db = new BooksEntities())
            {
                var authors = db.Authors;

                authors.Add(new Author
                {
                    FirstName = "Damon",
                    LastName  = "German",
                    Titles    = new List <Title>
                    {
                        new Title
                        {
                            Title1        = "Hello World",
                            Copyright     = "2018",
                            EditionNumber = 1,
                            ISBN          = GetRandomString(r, 15)
                        }
                    }
                });

                db.SaveChanges();

                foreach (var author in authors)
                {
                    author.FirstName = author.FirstName.ToUpper();
                    author.LastName  = author.LastName.ToUpper();
                }

                db.SaveChanges();

                DisplayAuthorsAndISBNs(db);
                DisplayAuthorsAndTitles(db);
            }
        }
        public AuthorsQuery()
        {
            Field <AuthorsType>(
                "authors",
                //arguments: new QueryArguments(new QueryArgument<StringGraphType> { Name = "name" }),
                resolve: context =>
            {
                //var name = context.GetArgument<string>("name");
                using (var db = new BooksEntities())
                {
                    var list = (from x in db.Authors select x).ToList().FirstOrDefault();
                    list.Books.ToList();
                    var type = list.Books.GetType();
                    foreach (var props in list.Books)
                    {
                        props.Genres.ToList();
                    }

                    return(list);
                }
            }
                );
        }
Exemple #24
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        public List <BookModel> Consult()
        {
            List <BookModel> result = new List <BookModel>();

            using (var data = new BooksEntities())
            {
                var resultconsult = (from d in data.book select d).ToList();
                foreach (var item in resultconsult)
                {
                    BookModel x = new BookModel();
                    x.id          = item.Id;
                    x.Name        = item.Name;
                    x.author      = item.author;
                    x.editorial   = item.editorial;
                    x.edition     = item.edition;
                    x.publication = item.publication;
                    x.id_city     = item.id_city;
                    x.Country     = item.Country;

                    result.Add(x);
                }
            }
            return(result);
        }
Exemple #25
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        private void comboBoxQuery_SelectedIndexChanged(object sender, EventArgs e)
        {
            BooksEntities dbcontext = new BooksEntities();

            txtQueryResult.Clear(); // clear the current content of the textbox

            switch (comboBoxQuery.SelectedIndex)
            {
            case 0:
                // get authors of each book they co-authored, sorted by title
                var booksAndAuthorsOrderedByTitle = from book in dbcontext.Titles
                                                    from author in book.Authors
                                                    orderby book.Title1
                                                    select new { book.Title1, Name = author.LastName + " " + author.FirstName };
                txtQueryResult.AppendText("TITLES AND AUTHORS (sorted by title): ");
                foreach (var element in booksAndAuthorsOrderedByTitle)
                {
                    txtQueryResult.AppendText($"\r\n\r\n\t \"{element.Title1,-10}\", "
                                              + $"co-authored by {element.Name,-10}");
                }
                break;

            case 1:
                // get authors of each book they co-authored, sorted by title, author's last name, author's first name
                var booksAndAuthorsOrderedByTitleLastFirst = from book in dbcontext.Titles
                                                             from author in book.Authors
                                                             orderby book.Title1, author.LastName, author.FirstName
                    select new { book.Title1, Name = author.LastName + " " + author.FirstName };
                txtQueryResult.AppendText("TITLES AND AUTHORS (sorted by title, author's last name, author's first name): ");
                foreach (var element in booksAndAuthorsOrderedByTitleLastFirst)
                {
                    txtQueryResult.AppendText($"\r\n\r\n\t \"{element.Title1,-10}\""
                                              + $"co-authored by {element.Name,-10}");
                }
                break;

            case 2:
                // get authors of each book, group them by the book title - sorted by title, author's last name, author's first name
                var authorsGroupedByBookOrderedByTitleLastFirst = from book in dbcontext.Titles
                                                                  orderby book.Title1
                                                                  select new
                {
                    book.Title1,
                    ItsAuthorsLastName = (from author in book.Authors
                                          orderby author.LastName, author.LastName
                                          select new { author.LastName, author.FirstName })
                };
                txtQueryResult.AppendText("TITLES AND AUTHORS "
                                          + "(sorted and grouped by title; sorted by author's last name, then author's first name): ");
                foreach (var element in authorsGroupedByBookOrderedByTitleLastFirst)
                {
                    txtQueryResult.AppendText($"\r\n\r\n\t \"{element.Title1}\", by");

                    foreach (var author in element.ItsAuthorsLastName)
                    {
                        txtQueryResult.AppendText($"\r\n\r\n\t\t {author.LastName} {author.FirstName}");
                    }
                }
                break;
            }
        }
Exemple #26
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 public BookRepository(BooksEntities context)
 {
     this.context = context;
 }
Exemple #27
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        /// <summary>
        /// Initializes a new instance of the MainViewModel class.
        /// </summary>
        public MainViewModel()
        {
            // Entity Framework DBContext
            BooksEntities dbcontext = new BooksEntities();
            //get authors and and titles, sorted by title
            var TitlesAndAuthors =
                from author in dbcontext.Authors
                from book in author.Titles
                orderby book.Title1
                select new { book.Title1, author.FirstName, author.LastName };

            outputTextBox += ("Titles and Authors:");

            //display authors and and titles, sorted by
            foreach (var element in TitlesAndAuthors)
            {
                outputTextBox += (
                    String.Format("\r\n\t{0,-50} {1} {2}",
                                  element.Title1, element.FirstName, element.LastName));
            } // end foreach

            outputTextBox += ("\r\n\r\n");

            //get authors and titles, sorted by authors
            var byAuthors =
                from author in dbcontext.Authors
                from book in author.Titles
                orderby book.Title1, author.FirstName, author.LastName
                select new { book.Title1, author.FirstName, author.LastName };

            outputTextBox += ("Authors and titles with authors sorted for each title:");

            //display orderd by authors for each book.
            foreach (var element in byAuthors)
            {
                outputTextBox += (
                    String.Format("\r\n\t{0,-50} {1} {2}",
                                  element.Title1, element.FirstName, element.LastName));
            } // end foreach

            // get authors and titles of each book
            // they co-authored; group by author
            var authorsByTitle =
                from book in dbcontext.Titles
                orderby book.Title1
                select new
            {
                Title   = book.Title1,
                Authors =
                    from author in book.Authors
                    orderby author.LastName, author.FirstName
                select author.FirstName + " " + author.LastName
            };

            outputTextBox += ("\r\n\r\nTitles grouped by author:");

            // display titles written by each author, grouped by author
            foreach (var Titles in authorsByTitle)
            {
                // display author's name
                outputTextBox += ("\r\n\t" + Titles.Title + ":");
                foreach (var Author in Titles.Authors)
                {
                    outputTextBox += ("\r\n\t" + Author);
                }
            } // end outer foreach
            this.RaisePropertyChanged(() => outputTextBox);
        }
Exemple #28
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        private void QueryCmb_SelectedIndexChanged(object sender, EventArgs e)
        {
            switch (queryCmb.SelectedIndex)
            {
            case 0:
                outputTxt.Text = String.Empty;
                BooksEntities db          = new BooksEntities();
                var           sortByTitle = from book in db.Titles
                                            from author in book.Authors
                                            orderby book.Title
                                            select new { author.FirstName, author.LastName, book.Title };

                outputTxt.AppendText("Authors and Titles:");

                foreach (var element in sortByTitle)
                {
                    outputTxt.AppendText(String.Format("\r\n\t{0,-10} {1,-10} {2}",
                                                       element.FirstName, element.LastName, element.Title));
                }
                break;

            case 1:
                outputTxt.Text = String.Empty;
                db             = new BooksEntities();
                var sortByTitleAndName = from book in db.Titles
                                         from author in book.Authors
                                         orderby book.Title, author.LastName, author.FirstName
                    select new { author.FirstName, author.LastName, book.Title };

                outputTxt.AppendText("Authors and Titles:");

                foreach (var element in sortByTitleAndName)
                {
                    outputTxt.AppendText(String.Format("\r\n\t{0,-10} {1,-10} {2}",
                                                       element.FirstName, element.LastName, element.Title));
                }
                break;

            case 2:
                outputTxt.Text = String.Empty;
                db             = new BooksEntities();
                var groupByTitle = from book in db.Titles
                                   orderby book.Title
                                   select new
                {
                    Titles = book.Title,
                    Names  = from author in book.Authors
                             orderby author.LastName, author.FirstName
                    select author.LastName + author.FirstName
                };

                outputTxt.AppendText("Authors grouped by title:");

                foreach (var title in groupByTitle)
                {
                    outputTxt.AppendText(String.Format("\r\n\t{0,-10}",
                                                       title.Titles
                                                       ));
                    foreach (var name in groupByTitle)
                    {
                        outputTxt.AppendText(String.Format("\r\n\t{0,-10}",
                                                           name.Names
                                                           ));
                    }
                }
                break;
            }
        }
Exemple #29
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        static void Test()
        {
            var parser = new GenericParserAdapter(
                Path.Combine(new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory).Parent.Parent.FullName,
                             "Data", "500.csv"));

            parser.FirstRowHasHeader = true;
            DataTable t = parser.GetDataTable();

            foreach (DataRow r in t.Rows)
            {
                using (var ctx = new BooksEntities())
                {
                    string       sm     = r["State"].ToString();
                    List <State> states = ctx.States.Where(s => s.ShortName.Equals(sm)).ToList();
                    State        state  = null;
                    if (states.Count > 0)
                    {
                        state = states[0];
                    }

                    if (state == null)
                    {
                        continue;
                    }

                    string      cm     = r["City"].ToString();
                    List <City> cities = ctx.Cities.Where(c => c.Name.Equals(cm)).ToList();
                    City        city   = null;
                    if (cities.Count > 0)
                    {
                        city = cities[0];
                    }

                    if (city == null)
                    {
                        City newCity = new City();
                        newCity.Name    = cm;
                        newCity.StateId = state.StateId;
                        city            = ctx.Cities.Add(newCity);
                    }

                    string         zcc = r["ZIP"].ToString();
                    List <ZipCode> zcs = ctx.ZipCodes.Where(z => z.ZipCode1.Equals(zcc)).ToList();
                    ZipCode        zc  = null;
                    if (zcs.Count > 0)
                    {
                        zc = zcs[0];
                    }

                    if (zc == null)
                    {
                        ZipCode newzc = new ZipCode();
                        newzc.ZipCode1 = zcc;
                        newzc.CityId   = city.CityId;
                        zc             = ctx.ZipCodes.Add(newzc);
                    }

                    string        name    = r[0].ToString() + " " + r[1].ToString();
                    List <Author> authors = ctx.Authors.Where(a => a.Name.Equals(name)).ToList();
                    Author        author  = null;
                    if (authors.Count > 0)
                    {
                        author = authors[0];
                    }

                    if (author == null)
                    {
                        Author newAuthor = new Author();
                        newAuthor.Name      = name;
                        newAuthor.SSN       = RandomString(11);
                        newAuthor.ZipCodeId = zc.ZipCodeId;
                        author = ctx.Authors.Add(newAuthor);
                    }
                    ctx.SaveChanges();
                }
            }
        }
Exemple #30
0
        public static List <BooksEntities> FinderBook(DBNexosBook db, BooksEntities booksEntities)
        {
            if (booksEntities.Author != null)
            {
                var ret = from B in db.Books
                          join E in db.Editorials on B.Id_Editorial equals E.Id_Editorial
                          join A in db.Authors on B.Id_Author equals A.Id_Author
                          where A.Name == booksEntities.Author
                          select new BooksEntities
                {
                    Title        = B.Title,
                    CreationDate = B.CreationDate,
                    Gender       = B.Gender,
                    Author       = A.Name,
                    Editorial    = E.Name
                };
                return(ret.ToList());
            }
            if (booksEntities.Editorial != null)
            {
                var ret = from B in db.Books
                          join E in db.Editorials on B.Id_Editorial equals E.Id_Editorial
                          join A in db.Authors on B.Id_Author equals A.Id_Author
                          where E.Name == booksEntities.Editorial
                          select new BooksEntities
                {
                    Title        = B.Title,
                    CreationDate = B.CreationDate,
                    Gender       = B.Gender,
                    Author       = A.Name,
                    Editorial    = E.Name
                };
                return(ret.ToList());
            }

            if (booksEntities.Title != null)
            {
                var ret = from B in db.Books
                          join E in db.Editorials on B.Id_Editorial equals E.Id_Editorial
                          join A in db.Authors on B.Id_Author equals A.Id_Author
                          where B.Title == booksEntities.Title
                          select new BooksEntities
                {
                    Title        = B.Title,
                    CreationDate = B.CreationDate,
                    Gender       = B.Gender,
                    Author       = A.Name,
                    Editorial    = E.Name
                };
                return(ret.ToList());
            }

            if (booksEntities.CreationDate != null)
            {
                var ret = from B in db.Books
                          join E in db.Editorials on B.Id_Editorial equals E.Id_Editorial
                          join A in db.Authors on B.Id_Author equals A.Id_Author
                          where B.CreationDate == booksEntities.CreationDate
                          select new BooksEntities
                {
                    Title        = B.Title,
                    CreationDate = B.CreationDate,
                    Gender       = B.Gender,
                    Author       = A.Name,
                    Editorial    = E.Name
                };
                return(ret.ToList());
            }
            return(null);
        }
 public BooksData()
 {
     booksEntities = new BooksEntities();
 }
Exemple #32
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        private static Author DeleteAuthorAuthor(Author author)
        {
            using (var db = new BooksEntities())
            {
                var oldAuthor = db.Authors.Find(author.AuthorID);
                db.Authors.Remove(oldAuthor);
                db.SaveChanges();

                return author;
            }
        }
        /// <summary>
        /// Initializes a new instance of the MainViewModel class.
        /// </summary>
        public MainViewModel()
        {
            BooksEntities dbcontext = new BooksEntities();

            //Get a list of all the titles and the authors who wrote them.
            //Sort the result by title.
            var allTitles =
                from author in dbcontext.Authors
                from book in author.Titles
                orderby book.Title1
                select new { author.FirstName, author.LastName, book.Title1 };

            Text += "Titles and Authors:";

            // display titles and author
            foreach (var element in allTitles)
            {
                Text += "\r\n\t" + element.Title1 + "\t" + element.FirstName + "\t" + element.LastName;
            } // end foreach

            //Get a list of all the titles and the authors who wrote them.
            //Sort the result by title.
            //For each title sort the authors alphabetically by last name, then first name.
            var allTitlesLF =
                from author in dbcontext.Authors
                from book in author.Titles
                orderby book.Title1, author.LastName, author.FirstName
                select new { author.FirstName, author.LastName, book.Title1 };

            Text += "\r\n\r\nAuthors and titles with authors sorted for each title:";

            // display titles and author
            foreach (var element in allTitlesLF)
            {
                Text += "\r\n\t" + element.Title1 + "\t" + element.LastName + "\t" + element.FirstName;
            } // end foreach

            //Get a list of all the authors grouped by title, sorted by title
            //for a given title sort the author names alphabetically by last name first then first name.
            var authorsByTitle =
                from author in dbcontext.Authors
                from book in author.Titles
                group new { author.FirstName, author.LastName } by book.Title1 into bookGroup
            orderby bookGroup.Key
            select bookGroup;

            Text += "\r\n\r\nTitles grouped by author:";

            // display titles written by each author, grouped by titles
            foreach (var title in authorsByTitle)
            {
                // display titles's name
                Text += "\r\n\t" + title.Key + ":";

                // display authors
                foreach (var author in title.OrderBy(name => name.LastName + name.FirstName))
                {
                    Text += "\r\n\t\t" + author.FirstName + " " + author.LastName;
                } // end inner foreach
            }     // end outer foreach

            this.RaisePropertyChanged(() => this.Text);
        }
Exemple #34
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        private static Author UpdateAge(Author author, int age)
        {
            using (var db = new BooksEntities())
            {
                var oldAuther = db.Authors.Find(author.AuthorID);
                oldAuther.Age = age;
                db.SaveChanges();

                return oldAuther;
            }
        }
        public IHttpActionResult Delete(int id)
        {
            bool selll = false;

            if (id <= 0)
            {
                return(BadRequest("Not a valid Book id"));
            }
            var selby = (from i in db.Seller_Buyer_Book
                         select i.Book_Id).ToList();

            foreach (var item in selby)
            {
                if (item == id)
                {
                    selll = true;
                }
            }

            if (selll)
            {
                return(BadRequest("Not a valid Book id"));
            }
            else
            {
                using (var ctx = new BooksEntities())
                {
                    var bookrequest = ctx.Requests
                                      .Where(s => s.Book_Id == id)
                                      .FirstOrDefault();
                    if (bookrequest != null)
                    {
                        ctx.Entry(bookrequest).State = System.Data.Entity.EntityState.Deleted;
                        ctx.SaveChanges();
                    }
                    var bookapproved = ctx.Seller_Approved_book
                                       .Where(s => s.Book_Id == id)
                                       .FirstOrDefault();
                    if (bookapproved != null)
                    {
                        ctx.Entry(bookapproved).State = System.Data.Entity.EntityState.Deleted;
                        ctx.SaveChanges();
                    }

                    var imglist = (from i in db.Images
                                   where i.Book_Id == id
                                   select i.Id).ToList();

                    foreach (var item in imglist)
                    {
                        var img = db.Images.Where(e => e.Id == item).First();
                        if (img != null)
                        {
                            db.Images.Remove(img);
                            db.SaveChanges();
                        }
                    }
                    var book = ctx.Books
                               .Where(s => s.Id == id)
                               .FirstOrDefault();

                    ctx.Entry(book).State = System.Data.Entity.EntityState.Deleted;
                    ctx.SaveChanges();
                }
            }

            return(Ok());
        }
Exemple #36
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        private static Author AddAuthor(string firstName, string lastName)
        {
            using (var db = new BooksEntities())
            {
                Author author = new Author();
                author.FirstName = firstName;
                author.LastName = lastName;
                db.Authors.Add(author);
                db.SaveChanges();

                return author;
            }
        }
Exemple #37
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        private static Author UpdateAuthor(Author author)
        {
            using (var db = new BooksEntities())
            {
                var oldAuthor = db.Authors.Find(author.AuthorID);
                oldAuthor.FirstName = author.FirstName;
                oldAuthor.LastName = author.LastName;
                db.SaveChanges();

                return author;
            }
        }
        public IHttpActionResult Put(AddbooVM editbook)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest("Not a valid model"));
            }

            bool govexsist  = false;
            bool cityexsist = false;
            int  govid;
            int  citid;
            var  govnames = (from i in db.Governates
                             select i.Name).ToList();

            foreach (var item in govnames)
            {
                if (item == editbook.Governate)
                {
                    govexsist = true;
                }
            }

            if (govexsist)
            {
                govid = (from i in db.Governates
                         where i.Name == editbook.Governate
                         select i.Id).First();
            }
            else
            {
                Governate Gov = new Governate();
                Gov.Name = editbook.Governate;
                db.Governates.Add(Gov);
                db.SaveChanges();

                govid = (from i in db.Governates
                         where i.Name == editbook.Governate
                         select i.Id).First();
            }

            var citynames = (from i in db.Cities
                             select i.Name).ToList();

            foreach (var item in citynames)
            {
                if (item == editbook.City)
                {
                    cityexsist = true;
                }
            }

            if (cityexsist)
            {
                citid = (from i in db.Cities
                         where i.Name == editbook.City
                         select i.Id).First();
            }
            else
            {
                City cit = new City();
                cit.Name         = editbook.City;
                cit.Governate_Id = govid;
                db.Cities.Add(cit);
                db.SaveChanges();

                citid = (from i in db.Cities
                         where i.Name == editbook.City
                         select i.Id).First();
            }
            var subid = (from i in db.SubCategories
                         where i.Name == editbook.SubCatogry
                         select i.Id).First();


            var imglist = (from i in db.Images
                           where i.Book_Id == editbook.BookId
                           select i.Id).ToList();

            foreach (var item in imglist)
            {
                var img = db.Images.Where(e => e.Id == item).First();
                db.Images.Remove(img);
                db.SaveChanges();
            }

            using (var ctx = new BooksEntities())
            {
                var existingbook = ctx.Books.Where(s => s.Id == editbook.BookId)
                                   .FirstOrDefault <Book>();

                if (existingbook != null)
                {
                    existingbook.Name        = editbook.BookName;
                    existingbook.Points      = editbook.Points;
                    existingbook.Discription = editbook.Discription;

                    existingbook.City_Id        = citid;
                    existingbook.Subcategory_Id = subid;
                    ctx.SaveChanges();

                    foreach (var item in editbook.Img)
                    {
                        if (item != null)
                        {
                            Image im = new Image();

                            im.Book_Id = editbook.BookId;
                            im.Img_URL = item;
                            ctx.Images.Add(im);
                            ctx.SaveChanges();
                        }
                    }
                }
                else
                {
                    return(NotFound());
                }
            }

            return(Ok(editbook));
        }