[Files Refactor] Performance tuning (#2819)

* Load scene relationships on demand
* Load image relationships on demand
* Load gallery relationships on demand
* Add dataloaden
* Use dataloaders
* Use where in for other find many functions

pkg/studio/export.go

@@ -14,7 +14,7 @@ type FinderImageStashIDGetter interface {
 	Finder
 	GetAliases(ctx context.Context, studioID int) ([]string, error)
 	GetImage(ctx context.Context, studioID int) ([]byte, error)
-	GetStashIDs(ctx context.Context, studioID int) ([]*models.StashID, error)
+	models.StashIDLoader
 }
 
 // ToJSON converts a Studio object into its JSON equivalent.
@@ -69,9 +69,9 @@ func ToJSON(ctx context.Context, reader FinderImageStashIDGetter, studio *models
 	}
 
 	stashIDs, _ := reader.GetStashIDs(ctx, studio.ID)
-	var ret []*models.StashID
+	var ret []models.StashID
 	for _, stashID := range stashIDs {
-		newJoin := &models.StashID{
+		newJoin := models.StashID{
 			StashID:  stashID.StashID,
 			Endpoint: stashID.Endpoint,
 		}

pkg/studio/export_test.go

@@ -46,8 +46,8 @@ var stashID = models.StashID{
 	StashID:  "StashID",
 	Endpoint: "Endpoint",
 }
-var stashIDs = []*models.StashID{
-	&stashID,
+var stashIDs = []models.StashID{
+	stashID,
 }
 
 const image = "aW1hZ2VCeXRlcw=="
@@ -107,8 +107,8 @@ func createFullJSONStudio(parentStudio, image string, aliases []string) *jsonsch
 		Image:        image,
 		Rating:       rating,
 		Aliases:      aliases,
-		StashIDs: []*models.StashID{
-			&stashID,
+		StashIDs: []models.StashID{
+			stashID,
 		},
 		IgnoreAutoTag: autoTagIgnored,
 	}

pkg/studio/import.go

@@ -18,7 +18,7 @@ type NameFinderCreatorUpdater interface {
 	UpdateFull(ctx context.Context, updatedStudio models.Studio) (*models.Studio, error)
 	UpdateImage(ctx context.Context, studioID int, image []byte) error
 	UpdateAliases(ctx context.Context, studioID int, aliases []string) error
-	UpdateStashIDs(ctx context.Context, studioID int, stashIDs []*models.StashID) error
+	UpdateStashIDs(ctx context.Context, studioID int, stashIDs []models.StashID) error
 }
 
 var ErrParentStudioNotExist = errors.New("parent studio does not exist")