- Bugfixes done linked to SearchRequest and Searchable features.

- Fixed a bug introduced into PdoObject exception on latest commit.
- Corrected the open() close() enclosure of query condition.

src/QueryBuilder.php

@@ -5,7 +5,7 @@ namespace Ulmus;
 class QueryBuilder
 {
     public Query\Where $where;
-
+    
     /**
      * Those are the parameters we are going to bind to PDO.
      */
@@ -139,7 +139,13 @@ class QueryBuilder
 
     public function open(string $condition = Query\Where::CONDITION_AND) : self
     {
-        if ( null !== ($this->where ?? false) ) {
+        if ( null !== ($this->where ?? null) ) {
+            $this->where->conditionList[] = $new = new Query\Where($this, $condition);
+            $this->where = $new;
+        }
+        else {
+            $this->where = new Query\Where($this, $condition);
+            $this->push($this->where);
             $this->where->conditionList[] = $new = new Query\Where($this, $condition);
             $this->where = $new;
         }
@@ -149,7 +155,13 @@ class QueryBuilder
 
     public function close() : self
     {
-        if ( null !== ($this->where ?? false) && $this->where->parent ) {
+        if ( null !== ($this->where ?? null) && $this->where->parent ) {
+            
+            # if an enclosure was opened, and nothing done, we must remove the unused node
+            if ( empty($this->where->conditionList) && (count($this->where->parent->conditionList) === 1) ) {
+                unset($this->where->parent->conditionList);
+            }
+            
             $this->where = $this->where->parent;
         }
 
@@ -167,6 +179,7 @@ class QueryBuilder
         }
         
         $this->conditionOperator = $operator;
+        
         $where->add($field, $value, $operator, $condition, $not);
         
         return $this;
@@ -179,7 +192,6 @@ class QueryBuilder
 
     public function groupBy() : self
     {
-        //$this->queryBuilder->groupBy();
         return $this;
     }