allow modification of created at and updated at in update document an…

…d update documents

src/Database/Database.php

@@ -4119,10 +4119,11 @@ public function updateDocument(string $collection, string $id, Document $documen
 
                 $skipPermissionsUpdate = ($originalPermissions === $currentPermissions);
             }
+            $createdAt = $document->getCreatedAt();
 
             $document = \array_merge($old->getArrayCopy(), $document->getArrayCopy());
             $document['$collection'] = $old->getAttribute('$collection');   // Make sure user doesn't switch collection ID
-            $document['$createdAt'] = $old->getCreatedAt();                 // Make sure user doesn't switch createdAt
+            $document['$createdAt'] = ($createdAt === null || !$this->preserveDates) ? $old->getCreatedAt() : $createdAt;  // Make sure user doesn't switch createdAt
 
             if ($this->adapter->getSharedTables()) {
                 $document['$tenant'] = $old->getTenant();                   // Make sure user doesn't switch tenant
@@ -4251,7 +4252,7 @@ public function updateDocument(string $collection, string $id, Document $documen
 
             if ($shouldUpdate) {
                 $updatedAt = $document->getUpdatedAt();
-                $document->setAttribute('$updatedAt', empty($updatedAt) || !$this->preserveDates ? $time : $updatedAt);
+                $document->setAttribute('$updatedAt', ($updatedAt === null || !$this->preserveDates) ? $time : $updatedAt);
             }
 
             // Check if document was updated after the request timestamp
@@ -4365,29 +4366,31 @@ public function updateDocuments(
         if (!empty($cursor) && $cursor->getCollection() !== $collection->getId()) {
             throw new DatabaseException("Cursor document must be from the same Collection.");
         }
-
+        $attributesToCheckForRequiredValidation = ['$updatedAt'];
         unset($updates['$id']);
-        unset($updates['$createdAt']);
         unset($updates['$tenant']);
-
+        if (($updates->getCreatedAt() === null || !$this->preserveDates)) {
+            unset($updates['$createdAt']);
+        } else {
+            $updates['$createdAt'] = $updates->getCreatedAt();
+            $attributesToCheckForRequiredValidation[] = '$createdAt';
+        }
         if ($this->adapter->getSharedTables()) {
             $updates['$tenant'] = $this->adapter->getTenant();
         }
 
-        if (!$this->preserveDates) {
-            $updates['$updatedAt'] = DateTime::now();
-        }
+        $updatedAt = $updates->getUpdatedAt();
+        $updates['$updatedAt'] = ($updatedAt === null || !$this->preserveDates) ? DateTime::now() : $updatedAt;
 
         $updates = $this->encode($collection, $updates);
-
         // Check new document structure
         $validator = new PartialStructure(
             $collection,
             $this->adapter->getMinDateTime(),
             $this->adapter->getMaxDateTime(),
         );
 
-        if (!$validator->isValid($updates)) {
+        if (!$validator->isValid($updates, $attributesToCheckForRequiredValidation)) {
             throw new StructureException($validator->getDescription());
         }
 

src/Database/Validator/PartialStructure.php

@@ -13,10 +13,11 @@ class PartialStructure extends Structure
      * Returns true if valid or false if not.
      *
      * @param mixed $document
+     * @param array<string, string> $requiredAttributes optional list of required attributes to check
      *
      * @return bool
      */
-    public function isValid($document): bool
+    public function isValid($document, array $requiredAttributes = []): bool
     {
         if (!$document instanceof Document) {
             $this->message = 'Value must be an instance of Document';
@@ -36,7 +37,16 @@ public function isValid($document): bool
             $name = $attribute['$id'] ?? '';
             $keys[$name] = $attribute;
         }
+        $requiredAttributesMap = [];
+        foreach ($this->attributes as $attribute) {
+            if ($attribute['required'] === true && in_array($attribute['$id'], $requiredAttributes)) {
+                $requiredAttributesMap[] = $attribute;
+            }
+        }
 
+        if (!$this->checkForAllRequiredValues($structure, $requiredAttributesMap, $keys)) {
+            return false;
+        }
         if (!$this->checkForUnknownAttributes($structure, $keys)) {
             return false;
         }