Fix for saving the theme in admin settings

Author: rxtur

src/App/Pages/Admin/Settings/Index.cshtml.cs

@@ -42,14 +42,14 @@ public async Task<IActionResult> OnGetAsync()
             return Page();
         }
 
-        public IActionResult OnPost()
+        public async Task<IActionResult> OnPost()
         {
             if (!ModelState.IsValid)
             {
                 return Page();
             }
 
-            _db.CustomFields.SaveBlogSettings(BlogItem);
+            await _db.CustomFields.SaveBlogSettings(BlogItem);
 
             Message = Resources.Updated;
 

src/Core/Core.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>netcoreapp2.1</TargetFramework>
-    <Version>2.0.2.8</Version>
+    <Version>2.0.2.9</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/Core/Data/Repositories/CustomFieldRepository.cs

@@ -42,12 +42,12 @@ public Task<BlogItem> GetBlogSettings()
 
         public async Task SaveBlogSettings(BlogItem blog)
         {
-            var title = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogTitle);
-            var desc = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogDescription);
-            var items = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogItemsPerPage);
-            var cover = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogCover);
-            var logo = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogLogo);
-            var theme = _db.CustomFields.Single(f => f.AuthorId == 0 && f.Name == Constants.BlogTheme);
+            var title = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogTitle).FirstOrDefault();
+            var desc = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogDescription).FirstOrDefault();
+            var items = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogItemsPerPage).FirstOrDefault();
+            var cover = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogCover).FirstOrDefault();
+            var logo = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogLogo).FirstOrDefault();
+            var theme = _db.CustomFields.Where(f => f.AuthorId == 0 && f.Name == Constants.BlogTheme).FirstOrDefault();
 
             if (title == null) _db.CustomFields.Add(new CustomField { AuthorId = 0, Name = Constants.BlogTitle, Content = blog.Title });
             else title.Content = blog.Title;