Merge pull request #1524 from colinin/fix-dynamic-localization-cache

fix: If the dynamic language cache is empty, the local cache will not…

aspnet-core/modules/localization-management/LINGYUN.Abp.LocalizationManagement.Domain/LINGYUN/Abp/LocalizationManagement/DynamicLocalizationChangedEventHandler.cs

@@ -32,7 +32,10 @@ public class DynamicLocalizationChangedEventHandler :
     {
         var resourcesCacheItem = await ResourcesCache.GetAsync(LocalizationResourcesCacheItem.CacheKey);
         var languagesCacheItem = await LanguageCache.GetAsync(LocalizationLanguageCacheItem.CacheKey);
-
+        if (languagesCacheItem == null && resourcesCacheItem == null)
+        {
+            return;
+        }
         foreach (var language in languagesCacheItem.Languages)
         {
             foreach (var resource in resourcesCacheItem.Resources)

aspnet-core/modules/localization-management/LINGYUN.Abp.LocalizationManagement.Domain/LINGYUN/Abp/LocalizationManagement/DynamicLocalizationInitializerEventHandler.cs

@@ -120,6 +120,10 @@ public class DynamicLocalizationInitializerEventHandler :
         using var unitOfWork = UnitOfWorkManager.Begin(true, true);
 
         var cacheItems = await DynamicLanguageCache.GetManyAsync(eventData.Keys);
+        if (cacheItems == null)
+        {
+            return;
+        }
 
         await SaveLanguagesAsync(cacheItems.Select(kv => kv.Value).ToArray());
 
@@ -169,6 +173,10 @@ public class DynamicLocalizationInitializerEventHandler :
         using var unitOfWork = UnitOfWorkManager.Begin(true, true);
 
         var cacheItems = await DynamicResourceCache.GetManyAsync(eventData.Keys);
+        if (cacheItems == null)
+        {
+            return;
+        }
 
         await SaveResourcesAsync(cacheItems.Select(kv => kv.Value).ToArray());
 
@@ -229,6 +237,10 @@ public class DynamicLocalizationInitializerEventHandler :
 
         var cacheItemDics = await DynamicTextCache.GetManyAsync(eventData.Keys);
         var cacheItems = cacheItemDics.Select(kv => kv.Value).ToArray();
+        if (cacheItems == null)
+        {
+            return;
+        }
 
         await SaveTextsAsync(cacheItems);