Make installation from scratch work with migration page

app/classes/Framadate/Migration/From_0_0_to_0_8_Migration.php

+<?php
+namespace Framadate\Migration;
+
+class From_0_0_to_0_8_Migration implements Migration {
+
+    function __construct() {
+    }
+
+    /**
+     * This methode is called only one time in the migration page.
+     *
+     * @param \PDO $pdo The connection to database
+     * @return bool true is the execution succeeded
+     */
+    function execute(\PDO $pdo) {
+        $pdo->exec('
+CREATE TABLE IF NOT EXISTS `sondage` (
+  `id_sondage` char(16) NOT NULL,
+  `commentaires` text,
+  `mail_admin` varchar(128) DEFAULT NULL,
+  `nom_admin` varchar(64) DEFAULT NULL,
+  `titre` text,
+  `id_sondage_admin` char(24) DEFAULT NULL,
+  `date_creation` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `date_fin` timestamp NOT NULL DEFAULT \'0000-00-00 00:00:00\',
+  `format` varchar(2) DEFAULT NULL,
+  `mailsonde` tinyint(1) DEFAULT \'0\',
+  `statut` int(11) NOT NULL DEFAULT \'1\' COMMENT \'1 = actif ; 0 = inactif ; \',
+  UNIQUE KEY `id_sondage` (`id_sondage`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;');
+
+        $pdo->exec('
+CREATE TABLE IF NOT EXISTS `sujet_studs` (
+  `id_sondage` char(16) NOT NULL,
+  `sujet` text,
+  KEY `id_sondage` (`id_sondage`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;');
+
+        $pdo->exec('
+CREATE TABLE IF NOT EXISTS `comments` (
+  `id_comment` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `id_sondage` char(16) NOT NULL,
+  `comment` text NOT NULL,
+  `usercomment` text,
+  PRIMARY KEY (`id_comment`),
+  KEY `id_sondage` (`id_sondage`)
+) ENGINE=InnoDB  DEFAULT CHARSET=utf8 ;');
+
+        $pdo->exec('
+CREATE TABLE IF NOT EXISTS `user_studs` (
+  `id_users` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `nom` varchar(64) NOT NULL,
+  `id_sondage` char(16) NOT NULL,
+  `reponses` text NOT NULL,
+  PRIMARY KEY (`id_users`),
+  KEY `id_sondage` (`id_sondage`)
+) ENGINE=InnoDB  DEFAULT CHARSET=utf8 ;');
+    }
+}
+ 
\ No newline at end of file

bandeaux.php

@@ -46,7 +46,7 @@ function bandeau_titre($titre)
     
     global $connect;
     $tables = $connect->allTables();
-    $diff = array_diff($tables, ['comment', 'poll', 'slot', 'vote']);
+    $diff = array_diff([Utils::table('comment'), Utils::table('poll'), Utils::table('slot'), Utils::table('vote')], $tables);
     if (0 != count($diff)) {
         echo '<div class="alert alert-danger">'. _('Framadate is not properly installed, please check the "INSTALL" to setup the database before continuing.') .'</div>';
         bandeau_pied();

migration.php

 <?php
+use Framadate\Migration\From_0_0_to_0_8_Migration;
 use Framadate\Migration\From_0_8_to_0_9_Migration;
 use Framadate\Migration\Migration;
 use Framadate\Utils;
@@ -11,6 +12,7 @@ function output($msg) {
 
 // List a Migration sub classes to execute
 $migrations = [
+    new From_0_0_to_0_8_Migration(),
     new From_0_8_to_0_9_Migration()
 ];
 // ---------------------------------------