fix division by 0

application/src/MagicWordBundle/Command/GenerateGridCommand.php

@@ -128,8 +128,8 @@ class GenerateGridCommand extends ContainerAwareCommand
         $output->writeln('Worst grid : <error>'.$worst.'</error>');
         $output->writeln('<info>###########################################################</info>');
 
-        $file = "data/import-".$idLexicon.".csv";
-        $output = $minBigram.";".$number.";".$averageAll.";".$averageLemmas.";".$distinctLemmas.";".$averageComboCounts.";".$averageCombos."\n";
-        file_put_contents($file, $output, FILE_APPEND);
+        // $file = "data/import-".$idLexicon.".csv";
+        // $output = $minBigram.";".$number.";".$averageAll.";".$averageLemmas.";".$distinctLemmas.";".$averageComboCounts.";".$averageCombos."\n";
+        // file_put_contents($file, $output, FILE_APPEND);
     }
 }

application/src/MagicWordBundle/Manager/GridManager.php

@@ -188,7 +188,7 @@ class GridManager
         foreach ($combos as $combo) {
             $totalCombo += count($combo["words"]);
         }
-        $average = $totalCombo/$length;
+        $average = ($length > 0) ? $totalCombo/$length : 0;
 
         return $average;
     }