* edit/create/delete categories

* also made error views user-aware

Src/VideoGameQuotes.Web/Controllers/CategoryController.cs

@@ -0,0 +1,78 @@
+using System.Web.Mvc;
+using Portoa.Persistence;
+using Portoa.Web.Controllers;
+using VideoGameQuotes.Api;
+using VideoGameQuotes.Web.Models;
+using VideoGameQuotes.Web.Security;
+using VideoGameQuotes.Web.Services;
+
+namespace VideoGameQuotes.Web.Controllers {
+	public class CategoryController : Controller {
+		private readonly ICategoryService categoryService;
+
+		public CategoryController(ICategoryService categoryService) {
+			this.categoryService = categoryService;
+		}
+
+		[HttpPost, VerifyUser(Group = UserGroup.Admin)]
+		public JsonResult Delete(int id) {
+			if (id < 1) {
+				return Json(this.CreateJsonResponse("Invalid ID"));
+			}
+
+			try {
+				var category = categoryService.FindById(id);
+				var numQuotes = categoryService.GetQuotesForCategory(category);
+				if (numQuotes > 0) {
+					return Json(this.CreateJsonErrorResponse(
+						string.Format("There are {0} quotes that are still using this category", numQuotes)
+					));
+				}
+			} catch (EntityNotFoundException) {
+				return Json(this.CreateJsonErrorResponse("No category exists for ID " + id));
+			}
+
+			categoryService.Delete(id);
+			return Json(this.CreateJsonResponse());
+		}
+
+		[HttpPost, VerifyUser(Group = UserGroup.Admin)]
+		public JsonResult Edit(EditCategoryModel model) {
+			if (model.CategoryId < 1) {
+				ModelState.AddModelError("CategoryId", "Invalid category ID");
+			}
+
+			if (!ModelState.IsValid) {
+				return Json(this.CreateJsonErrorResponse("Some errors occurred"));
+			}
+
+			try {
+				var category = categoryService.FindById(model.CategoryId);
+				if (categoryService.FindByName(model.CategoryName) != null) {
+					return Json(this.CreateJsonErrorResponse("A category already exists for that name"));
+				}
+
+				category.Name = model.CategoryName;
+
+				category = categoryService.Save(category);
+				return Json(this.CreateJsonResponse(data: category.ToDto()));
+			} catch (EntityNotFoundException) {
+				return Json(this.CreateJsonErrorResponse("No category exists for ID " + model.CategoryId));
+			}
+		}
+
+		[HttpPost, VerifyUser]
+		public JsonResult Create(EditCategoryModel model) {
+			if (!ModelState.IsValid) {
+				return Json(this.CreateJsonErrorResponse("Some errors occurred."));
+			}
+
+			if (categoryService.FindByName(model.CategoryName) != null) {
+				return Json(this.CreateJsonErrorResponse("A category already exists for that name"));
+			}
+
+			var category = categoryService.Save(new Category { Name = model.CategoryName });
+			return Json(this.CreateJsonResponse(data: category.ToDto()));
+		}
+	}
+}

Src/VideoGameQuotes.Web/Controllers/QuoteController.cs

@@ -233,17 +233,6 @@ namespace VideoGameQuotes.Web.Controllers {
 			}
 		}
 
-		[HttpPost, VerifyUser]
-		public JsonResult CreateCategory(Category category) {
-			try {
-				category = quoteService.SaveCategory(category);
-				var data = new Dictionary<string, string> { { "categoryId", category.Id.ToString() }, { "categoryName", category.Name } };
-				return Json(this.CreateJsonResponse(null, data));
-			} catch (Exception e) {
-				return Json(this.CreateJsonErrorResponse(e));
-			}
-		}
-
 		public ActionResult Search(string searchQuery) {
 			var model = new SearchModel {
 				User = currentUserProvider.CurrentUser,

Src/VideoGameQuotes.Web/Global.asax.cs

@@ -43,6 +43,7 @@ namespace VideoGameQuotes.Web {
 				.RegisterType<IAdministrationService, AdministrationService>()
 				.RegisterType<IQuoteService, QuoteService>()
 				.RegisterType<ISystemService, SystemService>()
+				.RegisterType<ICategoryService, CategoryService>()
 				.RegisterType<IPublisherService, PublisherService>()
 				.RegisterType<IGameService, GameService>()
 				.RegisterType<IApiService, ApiService>()
@@ -71,7 +72,7 @@ namespace VideoGameQuotes.Web {
 			//bullshit route so that RenderAction works
 			routes.MapRoute("mainmenu", "home/mainmenu", new { controller = "Home", action = "MainMenu" });
 
-			routes.MapRoute("crud-default", "{controller}/{action}", null, new { controller = "system|publisher|game", action = "create|edit|delete" });
+			routes.MapRoute("crud-default", "{controller}/{action}", null, new { controller = "system|publisher|game|category", action = "create|edit|delete" });
 
 			routes.MapRoute("users-paged", "admin/users/{start}-{end}", new { controller = "Admin", action = "Users" }, new { start = @"\d+", end = @"\d+" });
 			routes.MapRoute("admin", "admin/{action}", new { controller = "Admin", action = "Index" }, new { action = "users|create|flags|password" });
@@ -88,7 +89,6 @@ namespace VideoGameQuotes.Web {
 			routes.MapRoute("quote", "{action}", new { controller = "Quote" }, new { action = "submit|recent|random|vote|report" });
 			routes.MapRoute("dismiss-flag", "dismiss-flag", new { controller = "Quote", action = "DismissFlag" });
 			routes.MapRoute("individual-quote", "quote/{id}/{*text}", new { controller = "Quote", action = "Quote" }, new { id = @"\d+" });
-			routes.MapRoute("create-category", "category/create", new { controller = "Quote", action = "CreateCategory" });
 			routes.MapRoute("default", "{controller}", new { controller = "home", action = "index" });
 		}
 	}

Src/VideoGameQuotes.Web/Models/EditCategoryModel.cs

@@ -0,0 +1,9 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace VideoGameQuotes.Web.Models {
+	public class EditCategoryModel {
+		public int CategoryId { get; set; }
+		[Required(ErrorMessage = "The category must have a name, queerball")]
+		public string CategoryName { get; set; }
+	}
+}

Src/VideoGameQuotes.Web/Security/VerifyUserAttribute.cs

@@ -22,6 +22,7 @@ namespace VideoGameQuotes.Web.Security {
 			if (!allowedToExecuteAction) {
 				filterContext.Result = new ErrorViewResult {
 					Message = "You are not a verified user (are you hiding your IP address?)",
+					ModelCreator = exception => new ErrorModel<User> { Exception = exception, User = UserProvider.CurrentUser },
 					StatusCode = HttpStatusCode.Forbidden,
 					ViewName = "Forbidden"
 				};

Src/VideoGameQuotes.Web/Services/CategoryService.cs

@@ -0,0 +1,53 @@
+using System.Linq;
+using JetBrains.Annotations;
+using Portoa.Persistence;
+using VideoGameQuotes.Api;
+
+namespace VideoGameQuotes.Web.Services {
+	public interface ICategoryService {
+		[CanBeNull]
+		Category FindByName(string name);
+		Category Save(Category category);
+		Category FindById(int id);
+		void Delete(int id);
+		int GetQuotesForCategory(Category category);
+	}
+
+	public class CategoryService : ICategoryService {
+		private readonly IRepository<Category> categoryRepository;
+		private readonly IRepository<Quote> quoteRepository;
+
+		public CategoryService(IRepository<Category> categoryRepository, IRepository<Quote> quoteRepository) {
+			this.categoryRepository = categoryRepository;
+			this.quoteRepository = quoteRepository;
+		}
+
+		[UnitOfWork]
+		public Category FindByName(string name) {
+			return categoryRepository.Records.FirstOrDefault(category => category.Name == name);
+		}
+
+		[UnitOfWork]
+		public Category Save(Category category) {
+			return categoryRepository.Save(category);
+		}
+
+		[UnitOfWork]
+		public Category FindById(int id) {
+			return categoryRepository.FindById(id);
+		}
+
+		[UnitOfWork]
+		public void Delete(int id) {
+			categoryRepository.Delete(id);
+		}
+
+		[UnitOfWork]
+		public int GetQuotesForCategory(Category category) {
+			return quoteRepository
+				.Records
+				.Where(quote => quote.Categories.Contains(category))
+				.Count();
+		}
+	}
+}

Src/VideoGameQuotes.Web/Services/GameService.cs

@@ -1,5 +1,4 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
 using System.Linq;
 using JetBrains.Annotations;
 using Portoa.Persistence;

Src/VideoGameQuotes.Web/VideoGameQuotes.Web.csproj

@@ -86,12 +86,15 @@
   <ItemGroup>
     <Compile Include="Controllers\AdminController.cs" />
     <Compile Include="Controllers\ApiController.cs" />
+    <Compile Include="Controllers\CategoryController.cs" />
     <Compile Include="Controllers\GameController.cs" />
     <Compile Include="Controllers\HomeController.cs" />
     <Compile Include="Controllers\PublisherController.cs" />
     <Compile Include="Controllers\SystemController.cs" />
+    <Compile Include="Models\EditCategoryModel.cs" />
     <Compile Include="Models\EditGameModel.cs" />
     <Compile Include="Models\EditPublisherModel.cs" />
+    <Compile Include="Services\CategoryService.cs" />
     <Compile Include="Services\GameService.cs" />
     <Compile Include="Services\PublisherService.cs" />
     <Compile Include="Services\SystemService.cs" />
@@ -140,7 +143,9 @@
     <Content Include="media\css\global.css" />
     <Content Include="media\css\quote.css" />
     <Content Include="media\css\reset.css" />
+    <Content Include="media\images\accept.png" />
     <Content Include="media\images\add.png" />
+    <Content Include="media\images\cancel.png" />
     <Content Include="media\images\delete.png" />
     <Content Include="media\images\favicon.png" />
     <Content Include="media\images\loading.gif" />

Src/VideoGameQuotes.Web/Views/Shared/ExceptionView.ascx

@@ -1,12 +1,15 @@
-<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Portoa.Web.ErrorHandling.ErrorModel>" %>
+<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Portoa.Web.ErrorHandling.ErrorModel<VideoGameQuotes.Api.User>>" %>
+<%@ Import Namespace="VideoGameQuotes.Api" %>
 
 <% 
-	if (true) {
+	if (Model.User == null || Model.User.Group < UserGroup.Admin) {
-		if (Model.Exception != null) { %>
+		return;
-			<h2>Exception Details</h2> <%
+	}
-			Html.RenderPartial("RecursiveExceptionView", Model.Exception);
+	
-		} else { %>
+	if (Model.Exception != null) { %>
-			<p class="info">No exception was thrown.</p>
+		<h2>Exception Details</h2> <%
-		<% }
+		Html.RenderPartial("RecursiveExceptionView", Model.Exception);
-	} 
+	} else { %>
+		<p class="info">No exception was thrown.</p>
+	<% }
 %>

Src/VideoGameQuotes.Web/Views/Shared/Forbidden.aspx

@@ -1,4 +1,4 @@
-<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Portoa.Web.ErrorHandling.ErrorModel>" MasterPageFile="~/Views/Shared/Site.Master" %>
+<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Portoa.Web.ErrorHandling.ErrorModel<VideoGameQuotes.Api.User>>" MasterPageFile="~/Views/Shared/Site.Master" %>
 
 <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">Forbidden</asp:Content>
 

Src/VideoGameQuotes.Web/Views/Shared/NotFound.aspx

@@ -1,4 +1,4 @@
-<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Portoa.Web.ErrorHandling.ErrorModel>" MasterPageFile="~/Views/Shared/Site.Master" %>
+<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Portoa.Web.ErrorHandling.ErrorModel<VideoGameQuotes.Api.User>>" MasterPageFile="~/Views/Shared/Site.Master" %>
 
 <asp:Content ContentPlaceHolderID="TitleContent" runat="server">404</asp:Content>
 

Src/VideoGameQuotes.Web/Views/Shared/RecursiveExceptionView.ascx

@@ -1,9 +1,9 @@
 <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Exception>" %>
 <%@ Import Namespace="Portoa.Util" %>
 
-<p class="exception-message"><%= Model.GetType().GetFriendlyName(false) %>: <code style="white-space: pre"><%= Html.Encode(Model.Message) %></code></p>
+<p class="exception-message"><%= Model.GetType().GetFriendlyName(false) %>: <code style="white-space: pre"><%: Model.Message %></code></p>
 
-<pre><%= Model.StackTrace %></pre>
+<pre><%: Model.StackTrace %></pre>
 
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