added block queries against encrypt fields

src/Database/Validator/Query/Filter.php

@@ -74,6 +74,13 @@ protected function isValidAttribute(string $attribute): bool
      */
     protected function isValidAttributeAndValues(string $attribute, array $values, string $method): bool
     {
+        if (
+            isset($this->schema[$attribute]['filters'])
+            && in_array('encrypt', $this->schema[$attribute]['filters'])
+        ) {
+            $this->message = 'Cannot select encrypted attribute: ' . $attribute;
+            return false;
+        }
         if (!$this->isValidAttribute($attribute)) {
             return false;
         }

tests/e2e/Adapter/Base.php

@@ -2069,6 +2069,7 @@ public function testCreateCollectionValidator(): void
 
     public function testCreateDocument(): Document
     {
+
         static::getDatabase()->createCollection('documents');
 
         $this->assertEquals(true, static::getDatabase()->createAttribute('documents', 'string', Database::VAR_STRING, 128, true));
@@ -2814,6 +2815,53 @@ public function testGetDocument(Document $document): Document
         return $document;
     }
 
+    public function testEncryptAttributes(): void
+    {
+        // Add custom encrypt filter
+        static::getDatabase()->addFilter(
+            'encrypt',
+            function (mixed $value) {
+                return json_encode([
+                    'data' => base64_encode($value),
+                    'method' => 'base64',
+                    'version' => 'v1',
+                ]);
+            },
+            function (mixed $value) {
+                if (is_null($value)) {
+                    return;
+                }
+                $value = json_decode($value, true);
+                return base64_decode($value['data']);
+            }
+        );
+
+        static::getDatabase()->createCollection('test_documents');
+
+        static::getDatabase()->createAttribute('test_documents', 'title', Database::VAR_STRING, 255, true);
+        static::getDatabase()->createAttribute('test_documents', 'encrypt', Database::VAR_STRING, 128, true, filters: ['encrypt']);
+
+        static::getDatabase()->createDocument('test_documents', new Document([
+            'title' => 'Sample Title',
+            'encrypt' => 'secret',
+        ]));
+        // query against encrypt
+        try {
+            $queries = [Query::equal('encrypt', ['test'])];
+            $doc = static::getDatabase()->find('test_documents', $queries);
+            $this->fail('Queried against encrypt field. Failed to throw exeception.');
+        } catch (Throwable $e) {
+            $this->assertTrue($e instanceof QueryException);
+        }
+
+        try {
+            $queries = [Query::equal('title', ['test'])];
+            static::getDatabase()->find('test_documents', $queries);
+        } catch (Throwable $e) {
+            $this->fail('Should not have thrown error');
+        }
+    }
+
     /**
      * @depends testCreateDocument
      */