diff --git a/src/Umbraco.Core/Models/PropertyTypeExtensions.cs b/src/Umbraco.Core/Models/PropertyTypeExtensions.cs
index 23b6d0bf37..727b065ade 100644
--- a/src/Umbraco.Core/Models/PropertyTypeExtensions.cs
+++ b/src/Umbraco.Core/Models/PropertyTypeExtensions.cs
@@ -18,7 +18,9 @@ namespace Umbraco.Core.Models
         internal static IDataType DataType(this PropertyType propertyType)
         {
             Mandate.ParameterNotNull(propertyType, "propertyType");
-            return DataTypesResolver.Current.GetById(propertyType.DataTypeControlId);
+            var dataType = DataTypesResolver.Current.GetById(propertyType.DataTypeControlId);
+            dataType.DataTypeDefinitionId = propertyType.DataTypeId;
+            return dataType;
         }
     }
 }
\ No newline at end of file
diff --git a/src/Umbraco.Web/Services/FileService.cs b/src/Umbraco.Web/Services/FileService.cs
index f9587a05cd..0257299d9a 100644
--- a/src/Umbraco.Web/Services/FileService.cs
+++ b/src/Umbraco.Web/Services/FileService.cs
@@ -12,6 +12,7 @@ namespace Umbraco.Web.Services
     public class FileService : IFileService
     {
         private readonly IUnitOfWorkProvider _provider;
+        private readonly IUnitOfWork _unitOfWork;
 
         public FileService() : this(new FileUnitOfWorkProvider())
         {
@@ -20,6 +21,7 @@ namespace Umbraco.Web.Services
         public FileService(IUnitOfWorkProvider provider)
         {
             _provider = provider;
+            _unitOfWork = provider.GetUnitOfWork();
         }
 
         /// <summary>
@@ -28,8 +30,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="Stylesheet"/> objects</returns>
         public IEnumerable<Stylesheet> GetStylesheets(params string[] names)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(_unitOfWork);
             return repository.GetAll(names);
         }
 
@@ -40,8 +41,7 @@ namespace Umbraco.Web.Services
         /// <returns>A <see cref="Stylesheet"/> object</returns>
         public Stylesheet GetStylesheetByName(string name)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(_unitOfWork);
             return repository.Get(name);
         }
 
@@ -51,10 +51,9 @@ namespace Umbraco.Web.Services
         /// <param name="stylesheet"><see cref="Stylesheet"/> to save</param>
         public void SaveStylesheet(Stylesheet stylesheet)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(_unitOfWork);
             repository.AddOrUpdate(stylesheet);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -63,11 +62,10 @@ namespace Umbraco.Web.Services
         /// <param name="name">Name incl. extension of the Stylesheet to delete</param>
         public void DeleteStylesheet(string name)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IStylesheetRepository, Stylesheet, string>(_unitOfWork);
             var stylesheet = repository.Get(name);
             repository.Delete(stylesheet);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -86,8 +84,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="Script"/> objects</returns>
         public IEnumerable<Script> GetScripts(params string[] names)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(_unitOfWork);
             return repository.GetAll(names);
         }
 
@@ -98,8 +95,7 @@ namespace Umbraco.Web.Services
         /// <returns>A <see cref="Script"/> object</returns>
         public Script GetScriptByName(string name)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(_unitOfWork);
             return repository.Get(name);
         }
 
@@ -109,10 +105,9 @@ namespace Umbraco.Web.Services
         /// <param name="script"><see cref="Script"/> to save</param>
         public void SaveScript(Script script)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(_unitOfWork);
             repository.AddOrUpdate(script);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -121,11 +116,10 @@ namespace Umbraco.Web.Services
         /// <param name="name">Name incl. extension of the Script to delete</param>
         public void DeleteScript(string name)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IScriptRepository, Script, string>(_unitOfWork);
             var script = repository.Get(name);
             repository.Delete(script);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -144,8 +138,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="Template"/> objects</returns>
         public IEnumerable<Template> GetTemplates(params string[] aliases)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(_unitOfWork);
             return repository.GetAll(aliases);
         }
 
@@ -156,8 +149,7 @@ namespace Umbraco.Web.Services
         /// <returns>A <see cref="Template"/> object</returns>
         public Template GetTemplateByAlias(string alias)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(_unitOfWork);
             return repository.Get(alias);
         }
 
@@ -167,10 +159,9 @@ namespace Umbraco.Web.Services
         /// <param name="template"><see cref="Template"/> to save</param>
         public void SaveTemplate(Template template)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(_unitOfWork);
             repository.AddOrUpdate(template);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -179,11 +170,10 @@ namespace Umbraco.Web.Services
         /// <param name="alias">Alias of the <see cref="Template"/> to delete</param>
         public void DeleteTemplate(string alias)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ITemplateRepository, Template, string>(_unitOfWork);
             var template = repository.Get(alias);
             repository.Delete(template);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
diff --git a/src/Umbraco.Web/Services/LocalizationService.cs b/src/Umbraco.Web/Services/LocalizationService.cs
index c26b1fa839..e518516da9 100644
--- a/src/Umbraco.Web/Services/LocalizationService.cs
+++ b/src/Umbraco.Web/Services/LocalizationService.cs
@@ -16,6 +16,7 @@ namespace Umbraco.Web.Services
     {
         private static readonly Guid RootParentId = new Guid("41c7638d-f529-4bff-853e-59a0c2fb1bde");
         private readonly IUnitOfWorkProvider _provider;
+        private readonly IUnitOfWork _unitOfWork;
 
         public LocalizationService() : this(new PetaPocoUnitOfWorkProvider())
         {
@@ -24,6 +25,7 @@ namespace Umbraco.Web.Services
         public LocalizationService(IUnitOfWorkProvider provider)
         {
             _provider = provider;
+            _unitOfWork = provider.GetUnitOfWork();
         }
 
         /// <summary>
@@ -33,8 +35,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="IDictionaryItem"/></returns>
         public IDictionaryItem GetDictionaryItemById(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
             return repository.Get(id);
         }
 
@@ -45,8 +46,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="DictionaryItem"/></returns>
         public IDictionaryItem GetDictionaryItemById(Guid id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             var query = Query<IDictionaryItem>.Builder.Where(x => x.Key == id);
             var items = repository.GetByQuery(query);
@@ -61,8 +61,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="IDictionaryItem"/></returns>
         public IDictionaryItem GetDictionaryItemByKey(string key)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             var query = Query<IDictionaryItem>.Builder.Where(x => x.ItemKey == key);
             var items = repository.GetByQuery(query);
@@ -77,8 +76,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="IDictionaryItem"/> objects</returns>
         public IEnumerable<IDictionaryItem> GetDictionaryItemChildren(Guid parentId)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             var query = Query<IDictionaryItem>.Builder.Where(x => x.ParentId == parentId);
             var items = repository.GetByQuery(query);
@@ -92,8 +90,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="IDictionaryItem"/> objects</returns>
         public IEnumerable<IDictionaryItem> GetRootDictionaryItems()
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             var query = Query<IDictionaryItem>.Builder.Where(x => x.ParentId == RootParentId);
             var items = repository.GetByQuery(query);
@@ -108,8 +105,7 @@ namespace Umbraco.Web.Services
         /// <returns>True if a <see cref="IDictionaryItem"/> exists, otherwise false</returns>
         public bool DictionaryItemExists(string key)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             var query = Query<IDictionaryItem>.Builder.Where(x => x.ItemKey == key);
             var items = repository.GetByQuery(query);
@@ -123,11 +119,10 @@ namespace Umbraco.Web.Services
         /// <param name="dictionaryItem"><see cref="IDictionaryItem"/> to save</param>
         public void Save(IDictionaryItem dictionaryItem)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             repository.AddOrUpdate(dictionaryItem);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -137,12 +132,11 @@ namespace Umbraco.Web.Services
         /// <param name="dictionaryItem"><see cref="IDictionaryItem"/> to delete</param>
         public void Delete(IDictionaryItem dictionaryItem)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IDictionaryRepository, IDictionaryItem, int>(_unitOfWork);
 
             //NOTE: The recursive delete is done in the repository
             repository.Delete(dictionaryItem);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -152,8 +146,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="Language"/></returns>
         public ILanguage GetLanguageById(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(_unitOfWork);
             return repository.Get(id);
         }
 
@@ -164,8 +157,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="Language"/></returns>
         public ILanguage GetLanguageByCultureCode(string culture)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(_unitOfWork);
 
             var query = Query<ILanguage>.Builder.Where(x => x.CultureName == culture);
             var items = repository.GetByQuery(query);
@@ -179,8 +171,7 @@ namespace Umbraco.Web.Services
         /// <returns>An enumerable list of <see cref="ILanguage"/> objects</returns>
         public IEnumerable<ILanguage> GetAllLanguages()
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(_unitOfWork);
             var languages = repository.GetAll();
             return languages;
         }
@@ -191,11 +182,10 @@ namespace Umbraco.Web.Services
         /// <param name="language"><see cref="ILanguage"/> to save</param>
         public void Save(ILanguage language)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(_unitOfWork);
 
             repository.AddOrUpdate(language);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -204,12 +194,11 @@ namespace Umbraco.Web.Services
         /// <param name="language"><see cref="ILanguage"/> to delete</param>
         public void Delete(ILanguage language)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<ILanguageRepository, ILanguage, int>(_unitOfWork);
 
             //NOTE: There isn't any constraints in the db, so possible references aren't deleted
             repository.Delete(language);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
     }
 }
\ No newline at end of file
diff --git a/src/Umbraco.Web/Services/MediaService.cs b/src/Umbraco.Web/Services/MediaService.cs
index ce43fddd2a..b06c7f0ee3 100644
--- a/src/Umbraco.Web/Services/MediaService.cs
+++ b/src/Umbraco.Web/Services/MediaService.cs
@@ -13,6 +13,7 @@ namespace Umbraco.Web.Services
     public class MediaService : IMediaService
     {
         private readonly IUnitOfWorkProvider _provider;
+        private readonly IUnitOfWork _unitOfWork;
 
         public MediaService() : this(new PetaPocoUnitOfWorkProvider())
         {
@@ -21,6 +22,7 @@ namespace Umbraco.Web.Services
         public MediaService(IUnitOfWorkProvider provider)
         {
             _provider = provider;
+            _unitOfWork = provider.GetUnitOfWork();
         }
 
         /// <summary>
@@ -30,8 +32,7 @@ namespace Umbraco.Web.Services
         /// <returns><see cref="IMedia"/></returns>
         public IMedia GetById(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             return repository.Get(id);
         }
 
@@ -42,8 +43,7 @@ namespace Umbraco.Web.Services
         /// <returns>An Enumerable list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetChildren(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             var query = Query<IMedia>.Builder.Where(x => x.ParentId == id);
             var medias = repository.GetByQuery(query);
@@ -58,8 +58,7 @@ namespace Umbraco.Web.Services
         /// <returns>An Enumerable flat list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetDescendants(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             
             var media = repository.Get(id);
 
@@ -76,8 +75,7 @@ namespace Umbraco.Web.Services
         /// <returns>An Enumerable list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetMediaOfMediaType(int id)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             var query = Query<IMedia>.Builder.Where(x => x.ContentTypeId == id);
             var medias = repository.GetByQuery(query);
@@ -91,8 +89,7 @@ namespace Umbraco.Web.Services
         /// <returns>An Enumerable list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetRootMedia()
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             var query = Query<IMedia>.Builder.Where(x => x.ParentId == -1);
             var medias = repository.GetByQuery(query);
@@ -106,8 +103,7 @@ namespace Umbraco.Web.Services
         /// <returns>An Enumerable list of <see cref="IMedia"/> objects</returns>
         public IEnumerable<IMedia> GetMediaInRecycleBin()
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             var query = Query<IMedia>.Builder.Where(x => x.ParentId == -20);
             var medias = repository.GetByQuery(query);
@@ -135,11 +131,10 @@ namespace Umbraco.Web.Services
         public void MoveToRecycleBin(IMedia media, int userId)
         {
             //TODO If media item has children those should also be moved to the recycle bin as well
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             ((Core.Models.Media)media).ChangeTrashedState(true);
             repository.AddOrUpdate(media);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -147,8 +142,7 @@ namespace Umbraco.Web.Services
         /// </summary>
         public void EmptyRecycleBin()
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             var query = Query<IMedia>.Builder.Where(x => x.ParentId == -20);
             var contents = repository.GetByQuery(query);
@@ -157,7 +151,7 @@ namespace Umbraco.Web.Services
             {
                 repository.Delete(content);
             }
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -167,8 +161,7 @@ namespace Umbraco.Web.Services
         /// <param name="mediaTypeId">Id of the <see cref="IMediaType"/></param>
         public void DeleteMediaOfType(int mediaTypeId)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
 
             //NOTE What about media that has the contenttype as part of its composition?
             //The ContentType has to be removed from the composition somehow as it would otherwise break
@@ -182,7 +175,7 @@ namespace Umbraco.Web.Services
                 repository.AddOrUpdate(content);
             }
 
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -196,10 +189,9 @@ namespace Umbraco.Web.Services
         /// <param name="userId">Id of the User deleting the Media</param>
         public void Delete(IMedia media, int userId)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             repository.Delete(media);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -209,10 +201,9 @@ namespace Umbraco.Web.Services
         /// <param name="userId">Id of the User saving the Content</param>
         public void Save(IMedia media, int userId)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             repository.AddOrUpdate(media);
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
 
         /// <summary>
@@ -222,13 +213,12 @@ namespace Umbraco.Web.Services
         /// <param name="userId">Id of the User saving the Content</param>
         public void Save(IEnumerable<IMedia> medias, int userId)
         {
-            var unitOfWork = _provider.GetUnitOfWork();
-            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(unitOfWork);
+            var repository = RepositoryResolver.ResolveByType<IMediaRepository, IMedia, int>(_unitOfWork);
             foreach (var media in medias)
             {
                 repository.AddOrUpdate(media);
             }
-            unitOfWork.Commit();
+            _unitOfWork.Commit();
         }
     }
 }
\ No newline at end of file