Add post, fix delete forum, fix null pointer exceptions, min max limist

on database strings

BL/Factories/FoorumFactory.cs

@@ -2,13 +2,19 @@
 using System;
 using System.Collections.Generic;
 using BL.DTOs;
+using BL.Interfaces;
 using DAL.Domain;
 
 namespace BL.Factories
 {
     public class FoorumFactory
     {
-        private readonly PostFactory _postFactory = new PostFactory();
+        private readonly PostFactory _postFactory;
+
+        public FoorumFactory(IFoorumService forumService)
+        {
+            _postFactory = new PostFactory(forumService);
+        }
         public FoorumDTO Create(Foorum f, bool withPosts = false)
         {
             var dto = new FoorumDTO()

BL/Factories/PostFactory.cs

@@ -4,12 +4,18 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using BL.DTOs;
+using BL.Interfaces;
 using DAL.Domain;
 
 namespace BL.Factories
 {
     public class PostFactory
     {
+        private readonly IFoorumService _foorumService;
+        public PostFactory(IFoorumService foorumService)
+        {
+            _foorumService = foorumService;
+        }
 
         public PostDTO Create(Post p, bool withForum=false)
         {
@@ -24,10 +30,23 @@ namespace BL.Factories
 
             if (withForum)
             {
-                throw new NotImplementedException();
+                dto.Foorum = _foorumService.Get(p.ForumId, withPosts:false);
             }
 
             return dto;
         }
+
+        public Post Create(PostDTO p)
+        {
+            var domain = new Post()
+            {
+                PostId = p.PostId,
+                Title = p.Title,
+                Author = p.Author,
+                Body = p.Body,
+                CreationTime = p.CreationTime,
+            };
+            return domain;
+        }
     }
 }

BL/Interfaces/IFoorumService.cs

@@ -9,13 +9,13 @@ namespace BL.Interfaces
 {
     public interface IFoorumService
     {
-        IEnumerable<FoorumDTO> GetAll();
+        IEnumerable<FoorumDTO> GetAll(bool withHidden = false, bool withPosts = false);
-        FoorumDTO Get(int id);
+        FoorumDTO Get(int id, bool withPosts = true);
         FoorumDTO Add(FoorumDTO foorum);
         FoorumDTO Update(FoorumDTO foorum);
-        void Hide(int id, bool hide=true);
+        FoorumDTO Hide(int id, bool hide = true);
         FoorumDTO Delete(int id);
-        void AddPost(int id, PostDTO post);
+        PostDTO AddPost(int id, PostDTO post);
 
         IEnumerable<FoorumDTO> SearchFoorumTitle(string query);
         IEnumerable<FoorumDTO> SearchFoorumAuthor(string query);

BL/Services/FoorumService.cs

@@ -1,21 +1,26 @@
-using System;
+using BL.DTOs;
-using System.Collections.Generic;
-using System.Linq;
-using BL.DTOs;
 using BL.Factories;
 using BL.Interfaces;
 using DAL.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using DAL.Domain;
 
 namespace BL.Services
 {
     public class FoorumService : IFoorumService
     {
         private readonly IFoorumRepository _foorumRepository;
+        private readonly IPostRepository _postRepository;
         private readonly FoorumFactory _factory;
-        public FoorumService(IFoorumRepository foorumRepository)
+        private readonly PostFactory _postFactory;
+        public FoorumService(IFoorumRepository foorumRepository, IPostRepository postRepository)
         {
             _foorumRepository = foorumRepository;
-            _factory = new FoorumFactory();
+            _postRepository = postRepository;
+            _factory = new FoorumFactory(this);
+            _postFactory = new PostFactory(this);
         }
         public FoorumDTO Add(FoorumDTO foorum)
         {
@@ -25,9 +30,20 @@ namespace BL.Services
             return _factory.Create(f);
         }
 
-        public void AddPost(int id, PostDTO post)
+        public PostDTO AddPost(int id, PostDTO post)
         {
-            throw new NotImplementedException();
+            var f =_foorumRepository.GetById(id);
+            if (f == null)
+            {
+                return null;
+            }
+
+            var domainPost = _postFactory.Create(post);
+            domainPost.CreationTime = DateTime.Now;
+            domainPost.ForumId = f.FoorumId;
+            f.Posts.Add(domainPost);
+            _postRepository.Add(domainPost);
+            return _postFactory.Create(domainPost);
         }
 
         public FoorumDTO Delete(int id)
@@ -37,23 +53,43 @@ namespace BL.Services
             {
                 return null;
             }
+
+            foreach (var post in f.Posts.ToArray())
+            {
+                _postRepository.Delete(post);
+            }
+            _postRepository.SaveChanges();
             _foorumRepository.Delete(f);
             _foorumRepository.SaveChanges();
 
             return _factory.Create(f);
         }
 
-        public FoorumDTO Get(int id)
+        public FoorumDTO Get(int id, bool withPosts=true)
         {
             var f =_foorumRepository.GetById(id);
-            return _factory.Create(f, withPosts:true);
+            if (f == null)
+            {
+                return null;
+            }
+            return _factory.Create(f, withPosts);
         }
 
-        public IEnumerable<FoorumDTO> GetAll()
+        public IEnumerable<FoorumDTO> GetAll(bool withHidden = false, bool withPosts = false)
         {
-            foreach (var f in _foorumRepository.GetAll())
+            IEnumerable<Foorum> results;
+            if (withHidden)
             {
-                yield return _factory.Create(f);
+                results = _foorumRepository.GetAll();
+            }
+            else
+            {
+                results = _foorumRepository.GetMany(f => f.Visible);
+            }
+
+            foreach (var f in results)
+            {
+                yield return _factory.Create(f, withPosts);
             }   
         }
 
@@ -90,7 +126,10 @@ namespace BL.Services
 
         public IEnumerable<PostDTO> SearchPostAuthor(string query)
         {
-            throw new NotImplementedException();
+            foreach (var post in _postRepository.GetMany(p => p.Author.ToLower().Contains(query.ToLower())))
+            {
+                yield return _postFactory.Create(post, withForum: true);
+            }
         }
 
         public FoorumDTO Update(FoorumDTO foorum)

DAL/Domain/Foorum.cs

@@ -8,10 +8,23 @@ namespace DAL.Domain
     {
         [Key]
         public int FoorumId { get; set; }
+
+        [MaxLength(length: 128)]
+        [MinLength(length: 1)]
         public string Title { get; set; }
+
+        [MaxLength(length: 256)]
+        [MinLength(length: 1)]
         public string Description { get; set; }
+
+
+        [MaxLength(length: 1024)]
+        [MinLength(length: 1)]
         public string Body { get; set; }
         public DateTime CreationTime { get; set; }
+
+        [MaxLength(length: 128)]
+        [MinLength(length: 1)]
         public string Author { get; set; }
 
         public bool Visible { get; set; } = true;

DAL/Domain/Post.cs

@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace DAL.Domain
 {
@@ -7,13 +8,22 @@ namespace DAL.Domain
     {
         [Key]
         public int PostId { get; set; }
+
+        [MaxLength(length: 128)]
+        [MinLength(length: 1)]
         public string Title { get; set; }
+
+        [MaxLength(length: 1024)]
+        [MinLength(length: 1)]
         public string Body { get; set; }
         public DateTime CreationTime { get; set; }
+
+        [MaxLength(length: 128)]
+        [MinLength(length: 1)]
         public string Author { get; set; }
 
+
         public int ForumId { get; set; }
-        public Foorum Foorum { get; set; }
 
     }
 }

DAL/Helpers/DbInitializer.cs

@@ -21,6 +21,7 @@ namespace DAL.Helpers
 
             };
             ctx.Foorums.Add(foorum);
+            ctx.SaveChanges();
 
 
             for (int i = 0; i < 3; i++)
@@ -30,7 +31,8 @@ namespace DAL.Helpers
                     Title = $"Post {i}",
                     Author = "Karu",
                     Body =  $"Pikk sisu {i}",
-                    CreationTime = DateTime.Now
+                    CreationTime = DateTime.Now,
+                    ForumId = foorum.FoorumId
                 };
                 ctx.Posts.Add(post);
                 foorum.Posts.Add(post);

WebApi/Controllers/FoorumController.cs

@@ -83,5 +83,15 @@ namespace WebApi.Controllers
 
             return Ok(f);
         }
+
+        public IHttpActionResult PostPost(int id, [FromBody] PostDTO post)
+        {
+            var p = _foorumService.AddPost(id, post);
+            if (p == null)
+            {
+                return NotFound();
+            }
+            return Ok(p);
+        }
     }
 }

WebApi/Controllers/SearchController.cs

@@ -26,5 +26,10 @@ namespace WebApi.Controllers
         {
             return Ok(_foorumService.SearchFoorumTitle(title));
         }
+
+        public IHttpActionResult GetAuthorPosts(string authorPosts)
+        {
+            return Ok(_foorumService.SearchPostAuthor(authorPosts));
+        }
     }
 }

WebApi/index.html

@@ -11,6 +11,10 @@
 <br/>
 <button onclick="searchForum('author', prompt('Author: ', 'veeb'))">SearchForumAuthor</button>
 <button onclick="searchForum('title', prompt('Title: ', 'test'))">SearchForumTitle</button>
+<button onclick="searchForum('authorPosts', prompt('Author: ', 'test'))">SearchAuthorPosts</button>
+
+<br/>
+<button onclick="addPost(prompt('ForumId', '1'), 'Best title', prompt('Body', 'Lahe post'))">AddPost</button>
 
 <code><pre id="output"></pre></code>
 
@@ -83,4 +87,22 @@
             out.innerText = JSON.stringify(data, null, 2);
         });
     }
+
+    function addPost(id, title, body) {
+        var dto = {
+            Author: "Ajax",
+            Body: body,
+            Title: title
+        }
+        fetch("/api/foorum/"+id,
+            {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json'
+                },
+                body: JSON.stringify(dto)
+            }).then(resp => getForum(id));
+    }
+
+    getForums();
 </script>