Fix/deviating dbset name

src/Examples/JsonApiDotNetCoreExample/Data/AppDbContext.cs

@@ -11,7 +11,7 @@ public class AppDbContext : DbContext
         public DbSet<TodoItemCollection> TodoItemCollections { get; set; }
         public DbSet<CamelCasedModel> CamelCasedModels { get; set; }
         public DbSet<Article> Articles { get; set; }
-        public DbSet<Author> Authors { get; set; }
+        public DbSet<Author> AuthorDifferentDbContextName { get; set; }
         public DbSet<NonJsonApiResource> NonJsonApiResources { get; set; }
         public DbSet<User> Users { get; set; }
         public DbSet<PersonRole> PersonRoles { get; set; }

src/Examples/NoEntityFrameworkExample/.gitignore

@@ -22,6 +22,8 @@ bld/
 [Bb]in/
 [Oo]bj/
 
+Properties/launchSettings.json
+
 # Visual Studio 2015 cache/options directory
 .vs/
 # Uncomment if you have tasks that create the project's static files in wwwroot

src/JsonApiDotNetCore/Builders/ResourceGraphBuilder.cs

@@ -218,7 +218,7 @@ private string GetResourceNameFromDbSetProperty(PropertyInfo property, Type reso
 
             // fallback to the established convention using the DbSet Property.Name
             // e.g DbSet<FooBar> FooBars { get; set; } => "foo-bars"
-            return _resourceNameFormatter.ApplyCasingConvention(property.Name);
+            return _resourceNameFormatter.FormatResourceName(resourceType);
         }
 
         private (bool isJsonApiResource, Type idType) GetIdType(Type resourceType)

test/JsonApiDotNetCoreExampleTests/Acceptance/ManyToManyTests.cs

@@ -240,7 +240,7 @@ public async Task Can_Create_Many_To_Many()
             var tag = _tagFaker.Generate();
             var author = new Author();
             context.Tags.Add(tag);
-            context.Authors.Add(author);
+            context.AuthorDifferentDbContextName.Add(author);
             await context.SaveChangesAsync();
 
             var article = _articleFaker.Generate();

test/UnitTests/Extensions/IServiceCollectionExtensionsTests.cs

@@ -59,6 +59,27 @@ public void AddJsonApiInternals_Adds_All_Required_Services()
             Assert.NotNull(provider.GetService(typeof(RepositoryRelationshipUpdateHelper<TodoItem>)));
         }
 
+        [Fact]
+        public void RegisterResource_DeviatingDbContextPropertyName_RegistersCorrectly()
+        {
+            // Arrange
+            var services = new ServiceCollection();
+
+            services.AddDbContext<AppDbContext>(options => options.UseInMemoryDatabase("UnitTestDb"), ServiceLifetime.Transient);
+            services.AddJsonApi<AppDbContext>();
+
+            // Act
+            // this is required because the DbContextResolver requires access to the current HttpContext
+            // to get the request scoped DbContext instance
+            services.AddScoped<IScopedServiceProvider, TestScopedServiceProvider>();
+            var provider = services.BuildServiceProvider();
+            var graph = provider.GetService<IResourceGraph>();
+            var resourceContext = graph.GetResourceContext<Author>();
+
+            // Assert 
+            Assert.Equal("authors", resourceContext.ResourceName);
+        }
+
         [Fact]
         public void AddResourceService_Registers_All_Shorthand_Service_Interfaces()
         {
@@ -116,7 +137,7 @@ public void AddResourceService_Throws_If_Type_Does_Not_Implement_Any_Interfaces(
         }
 
         [Fact]
-        public void AddJsonApi_With_Context_Uses_DbSet_PropertyName_If_NoOtherSpecified()
+        public void AddJsonApi_With_Context_Uses_Resource_Type_Name_If_NoOtherSpecified()
         {
             // Arrange
             var services = new ServiceCollection();
@@ -130,7 +151,7 @@ public void AddJsonApi_With_Context_Uses_DbSet_PropertyName_If_NoOtherSpecified(
             var provider = services.BuildServiceProvider();
             var resourceGraph = provider.GetService<IResourceGraph>();
             var resource = resourceGraph.GetResourceContext(typeof(IntResource));
-            Assert.Equal("resource", resource.ResourceName);
+            Assert.Equal("int-resources", resource.ResourceName);
         }
 
         public class IntResource : Identifiable { }