Create comments

LibraryManager.BLL/Interfaces/ICommentService.cs

@@ -0,0 +1,15 @@
+using LibraryManager.DTO.Models;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace LibraryManager.BLL.Interfaces
+{
+    public interface ICommentService
+    {
+        void Create(CommentDTO commentDTO);
+        void Delete(int id);
+        IEnumerable<CommentDTO> GetByBook(int id);
+        void Update(CommentDTO commentDTO);
+    }
+}

LibraryManager.BLL/Services/CommentService.cs

@@ -0,0 +1,57 @@
+using AutoMapper;
+using LibraryManager.BLL.Interfaces;
+using LibraryManager.DAL.Entities;
+using LibraryManager.DAL.Interfaces;
+using LibraryManager.DTO.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace LibraryManager.BLL.Services
+{
+    public class CommentService : ICommentService
+    {
+        private readonly IUnitOfWork _unitOfWork;
+        private readonly IMapper _mapper;
+
+        public CommentService(IUnitOfWork unitOfWork,IMapper mapper)
+        {
+            _unitOfWork = unitOfWork;
+            _mapper = mapper;
+        }
+
+        public void Create(CommentDTO commentDTO)
+        {
+            var comment = _mapper.Map<Comment>(commentDTO);
+            _unitOfWork.CommentRepository.Create(comment);
+            _unitOfWork.Save();
+        }
+
+        public void Delete(int id)
+        {
+            _unitOfWork.CommentRepository.Delete(id);
+            _unitOfWork.Save();
+        }
+
+        public IEnumerable<CommentDTO> GetByBook(int id)
+        {
+            var comments = _unitOfWork.CommentRepository.GetAll().Where(x => x.BookId == id);
+            var commentsDTO = new List<CommentDTO>();
+
+            foreach (var comment in comments)
+            {
+                commentsDTO.Add(_mapper.Map<CommentDTO>(comment));
+            }
+
+            return commentsDTO;
+        }
+
+        public void Update(CommentDTO commentDTO)
+        {
+            var comment = _mapper.Map<Comment>(commentDTO);
+            _unitOfWork.CommentRepository.Update(comment);
+            _unitOfWork.Save();
+        }
+    }
+}

LibraryManager.DAL/Context/LibraryManagerContext.cs

@@ -10,12 +10,12 @@ namespace LibraryManager.DAL.Context
 {
     public sealed class LibraryManagerContext: IdentityDbContext<User>
     {
-        //public DbSet<Admin> Admins { get; set; }
         public DbSet<Author> Authors { get; set; }
         public DbSet<Book> Books { get; set; }
         public DbSet<Genre> Genres { get; set; }
         public DbSet<Language> Languages { get; set; }
         public DbSet<UserBook> UserBooks { get; set; }
+        public DbSet<Comment> Comments { get; set; }
 
 
         public LibraryManagerContext() { }

LibraryManager.DAL/Entities/Comment.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace LibraryManager.DAL.Entities
+{
+    public class Comment
+    {
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+
+        public DateTime Date { get; set; }
+
+        public string UserId { get; set; }
+        public User User { get; set; }
+
+        public int BookId { get; set; }
+        public Book Book { get; set; }
+    }
+}

LibraryManager.DAL/Interfaces/IUnitOfWork.cs

@@ -18,7 +18,9 @@ public interface IUnitOfWork: IDisposable
         IRepository<Language, int> LanguageRepository { get; set; }
 
         IRepository<Genre, int> GenreRepository { get; set; }
-
+
+        IRepository<Comment,int> CommentRepository { get; set; }
+
         IManyToManyRepository<UserBook,string, int> UserBookRepository { get; set; }
 
         IManyToManyRepository<BookGenre, int, int> BookGenreRepository { get; set; }

LibraryManager.DAL/LibraryManager.DAL.csproj

@@ -16,4 +16,8 @@
     </Reference>
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Migrations\" />
+  </ItemGroup>
+
 </Project>