added temp collections cache

core/base.go

@@ -1182,6 +1182,8 @@ func (app *BaseApp) registerDefaultHooks() {
 	if err := app.initAutobackupHooks(); err != nil {
 		app.Logger().Error("Failed to init auto backup hooks", slog.String("error", err.Error()))
 	}
+
+	registerCachedCollectionsAppHooks(app)
 }
 
 // getLoggerMinLevel returns the logger min level based on the

core/collections_cache.go

@@ -0,0 +1,72 @@
+package core
+
+// -------------------------------------------------------------------
+// This is a small optimization ported from the [ongoing refactoring branch](https://github.com/pocketbase/pocketbase/discussions/4355).
+//
+// @todo remove after the refactoring is finalized.
+// -------------------------------------------------------------------
+
+import (
+	"strings"
+
+	"github.com/pocketbase/pocketbase/models"
+)
+
+const storeCachedCollectionsKey = "@cachedCollectionsContext"
+
+func registerCachedCollectionsAppHooks(app App) {
+	collectionsChangeFunc := func(e *ModelEvent) error {
+		if _, ok := e.Model.(*models.Collection); !ok {
+			return nil
+		}
+
+		_ = ReloadCachedCollections(app)
+
+		return nil
+	}
+	app.OnModelAfterCreate().Add(collectionsChangeFunc)
+	app.OnModelAfterUpdate().Add(collectionsChangeFunc)
+	app.OnModelAfterDelete().Add(collectionsChangeFunc)
+	app.OnBeforeServe().Add(func(e *ServeEvent) error {
+		_ = ReloadCachedCollections(e.App)
+		return nil
+	})
+}
+
+func ReloadCachedCollections(app App) error {
+	collections := []*models.Collection{}
+
+	err := app.Dao().CollectionQuery().All(&collections)
+	if err != nil {
+		return err
+	}
+
+	app.Store().Set(storeCachedCollectionsKey, collections)
+
+	return nil
+}
+
+func FindCachedCollectionByNameOrId(app App, nameOrId string) (*models.Collection, error) {
+	// retrieve from the app cache
+	// ---
+	collections, _ := app.Store().Get(storeCachedCollectionsKey).([]*models.Collection)
+	for _, c := range collections {
+		if strings.EqualFold(c.Name, nameOrId) || c.Id == nameOrId {
+			return c, nil
+		}
+	}
+
+	// retrieve from the database
+	// ---
+	found, err := app.Dao().FindCollectionByNameOrId(nameOrId)
+	if err != nil {
+		return nil, err
+	}
+
+	err = ReloadCachedCollections(app)
+	if err != nil {
+		app.Logger().Warn("Failed to reload collections cache", "error", err)
+	}
+
+	return found, nil
+}