- Some work done on correcting LDAP package compatibility

src/QueryBuilder.php

@@ -48,7 +48,7 @@ class QueryBuilder implements Query\QueryBuilderInterface
         }
     }
     
-    public function select($field) : self
+    public function select($field, bool $distinct = false) : self
     {
         if ( null !== ( $select = $this->getFragment(Query\Select::class) ) ) {
             $select->add($field);
@@ -59,6 +59,8 @@ class QueryBuilder implements Query\QueryBuilderInterface
             $this->push($select);
         }
 
+        $select->distinct = $distinct;
+
         return $this;
     }
     
@@ -401,7 +403,7 @@ class QueryBuilder implements Query\QueryBuilderInterface
     public function getFragment(string $class, int $index = 0) : ? Query\Fragment
     {
         foreach($this->queryStack as $item) {
-            if ( get_class($item) === $class ) {
+            if ( is_a($item, $class, true) ) {
                 if ( $index-- === 0 ) {
                     return $item;
                 }
@@ -419,6 +421,11 @@ class QueryBuilder implements Query\QueryBuilderInterface
             }
         }
     }
+
+    public function getFragments() : array
+    {
+        return $this->queryStack;
+    }
     
     public function __toString() : string
     {