sauver les grilles invalides

Grille.php

@@ -93,8 +93,9 @@ class Grille implements ArrayAccess
 
         $grilles = $this->gen_grilles();
         $grilles->current();
+        $this->valide = $grilles->valid();
 
-        if ($grilles->valid()) {
+        if ($this->valide) {
             $this->definitions = [
                 "horizontales" => [],
                 "verticales" => []
@@ -119,11 +120,10 @@ class Grille implements ArrayAccess
                     $this->definitions["verticales"][$x][] = $definition;
                 }
             }
-            $this->save($id);
-            return true;
-        } else {
-            return false;
         }
+
+        $this->save($id);
+        return $this->valide;
     }
 
     public function gen_grilles($i = 0, $lettres_ligne = NULL)
@@ -239,6 +239,7 @@ class Grille implements ArrayAccess
 
         $_SESSION["grille"] = $this->grille;
         $_SESSION["definitions"] = $this->definitions;
+        $_SESSION["valide"] = $this->valide;
     }
 
     public function load($id)
@@ -246,14 +247,15 @@ class Grille implements ArrayAccess
         session_id("$this->largeur,$this->hauteur,$id");
         session_start(["use_cookies" => false]);
 
-        if (!isset($_SESSION)) {
+        if (isset($_SESSION) && isset($_SESSION["grille"])) {
+            $this->grille = $_SESSION["grille"];
+            $this->definitions = $_SESSION["definitions"];
+            $this->valide = $_SESSION["valide"];
+
+            return true;
+        } else {
             return false;
         }
-
-        $this->grille = $_SESSION["grille"];
-        $this->definitions = $_SESSION["definitions"];
-
-        return true;
     }