Fixing more errors with nullable reference types

src/Umbraco.Infrastructure/Persistence/Repositories/Implement/LanguageRepository.cs

@@ -38,19 +38,19 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
             return new FullDataSetRepositoryCachePolicy<ILanguage, int>(GlobalIsolatedCache, ScopeAccessor, GetEntityId, /*expires:*/ false);
         }
 
-        private FullDataSetRepositoryCachePolicy<ILanguage, int> TypedCachePolicy => CachePolicy as FullDataSetRepositoryCachePolicy<ILanguage, int>;
+        private FullDataSetRepositoryCachePolicy<ILanguage, int>? TypedCachePolicy => CachePolicy as FullDataSetRepositoryCachePolicy<ILanguage, int>;
 
         #region Overrides of RepositoryBase<int,Language>
 
-        protected override ILanguage PerformGet(int id)
+        protected override ILanguage? PerformGet(int id)
         {
             return PerformGetAll(id).FirstOrDefault();
         }
 
-        protected override IEnumerable<ILanguage> PerformGetAll(params int[] ids)
+        protected override IEnumerable<ILanguage> PerformGetAll(params int[]? ids)
         {
             var sql = GetBaseQuery(false).Where<LanguageDto>(x => x.Id > 0);
-            if (ids.Any())
+            if (ids?.Any() ?? false)
             {
                 sql.WhereIn<LanguageDto>(x => x.Id, ids);
             }
@@ -243,7 +243,7 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
             return entity;
         }
 
-        public ILanguage GetByIsoCode(string isoCode)
+        public ILanguage? GetByIsoCode(string isoCode)
         {
             // ensure cache is populated, in a non-expensive way
             if (TypedCachePolicy != null)
@@ -256,7 +256,7 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
 
         // fast way of getting an id for an isoCode - avoiding cloning
         // _codeIdMap is rebuilt whenever PerformGetAll runs
-        public int? GetIdByIsoCode(string isoCode, bool throwOnNotFound = true)
+        public int? GetIdByIsoCode(string? isoCode, bool throwOnNotFound = true)
         {
             if (isoCode == null) return null;
 
@@ -278,7 +278,7 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
 
         // fast way of getting an isoCode for an id - avoiding cloning
         // _idCodeMap is rebuilt whenever PerformGetAll runs
-        public string GetIsoCodeById(int? id, bool throwOnNotFound = true)
+        public string? GetIsoCodeById(int? id, bool throwOnNotFound = true)
         {
             if (id == null) return null;
 
@@ -300,7 +300,7 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
 
         public string GetDefaultIsoCode()
         {
-            return GetDefault()?.IsoCode;
+            return GetDefault().IsoCode;
         }
 
         public int? GetDefaultId()
@@ -313,7 +313,7 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
         {
             // get all cached
             var languages = (TypedCachePolicy?.GetAllCached(PerformGetAll) //try to get all cached non-cloned if using the correct cache policy (not the case in unit tests)
-                ?? CachePolicy.GetAll(Array.Empty<int>(), PerformGetAll)).ToList();
+                ?? CachePolicy.GetAll(Array.Empty<int>(), PerformGetAll)!).ToList();
 
             var language = languages.FirstOrDefault(x => x.IsDefault);
             if (language != null) return language;
@@ -323,14 +323,14 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement
 
             // still, don't kill the site, and return "something"
 
-            ILanguage first = null;
+            ILanguage? first = null;
             foreach (var l in languages)
             {
                 if (first == null || l.Id < first.Id)
                     first = l;
             }
 
-            return first;
+            return first!;
         }
     }
 }