valeur par défaut pour le pk dans le querybuilder, ajout du whereRaw sur le model, fixation à * sur la liste de colonnes si non définie

src/QueryBuilder.php

@@ -14,7 +14,7 @@ class QueryBuilder
     protected ?int $offset;
     protected string $raw_query;
 
-    public function __construct($table, $pk)
+    public function __construct($table, $pk = "id")
     {
         $this->table = $table;
         $this->pk = $pk;
@@ -83,6 +83,12 @@ class QueryBuilder
         return $this;
     }
 
+    public function whereRaw(string $raw)
+    {
+        $this->wheres[] = $raw;
+        return $this;
+    }
+
     public function find($id): mixed
     {
         $this->reset();
@@ -153,12 +159,24 @@ class QueryBuilder
         $ret->setQuery("");
         $ret->setData([]);
 
+        if (count($this->columns) == 0) {
+            $this->columns("*");
+        }
+
         $columns = implode(",", $this->columns);
         $where = "";
         foreach ($this->wheres as $expression) {
-            $sw = $expression->raw();
-            $ret->addData($expression->getValue());
-            if ($where != "") {
+            $sw = "";
+            if ($expression instanceof Expression) {
+                $sw = $expression->raw();
+                $ret->addData($expression->getValue());
+            }
+            if ($expression instanceof string) {
+                if (trim($expression) !== "") {
+                    $sw = "(" . $expression  . ")";
+                }
+            }
+            if ($where != "" && $sw != "") {
                 $where .= " AND ";
             }
             $where .= $sw;