[Technique] Images : gestion image par défaut

backend/views/layouts/header.php

  * termes.
  */
 
+use common\helpers\Image;
 use common\helpers\Price;
 use common\logic\Producer\Producer\Module\ProducerModule;
 use common\logic\User\User\Module\UserModule;
             <span class="sr-only">Toggle navigation</span>
         </a>
 
-        <span class="producer-panel<?php if(!$producer->logo): ?> without-logo<?php endif; ?>">
-            <?php if($producer->logo): ?>
+        <span class="producer-panel<?php if(!$producer->logo || !Image::isPhotoExist($producer->logo)): ?> without-logo<?php endif; ?>">
+            <?php if($producer->logo && Image::isPhotoExist($producer->logo)): ?>
                 <span class="logo">
                         <img class="img-logo"
                              src="<?= Yii::$app->urlManagerProducer->getHostInfo() . '/' . Yii::$app->urlManagerProducer->baseUrl; ?>/uploads/<?= $producer->logo; ?>"

common/helpers/Image.php

         $thumbnailFilename = self::getThumbnailFilename($filenameOriginal, $thumbnail);
         $thumbnailPath = $basePath . $thumbnailFilename;
         $originalPath = $basePath . $filenameOriginal;
+        $defaultImagePath = $basePath . 'default.jpg';
 
-        return self::isThumbnailExist($thumbnailFilename) ? $thumbnailPath : $originalPath;
+        if(self::isPhotoExist($thumbnailFilename)) {
+            return $thumbnailPath;
+        }
+
+        if(self::isPhotoExist($filenameOriginal)) {
+            return $originalPath;
+        }
+
+        return $defaultImagePath;
     }
 
     public static function getBasePath(bool $absoluteUrl = false): string
         return $filenameArray[0].'-'.$thumbnail.'.'.$filenameArray[1];
     }
 
-    public static function isThumbnailExist(string $thumbnailFilename): bool
+    public static function isPhotoExist(string $filename): bool
     {
-        return file_exists(\Yii::getAlias('@producer').'/web/'.self::DIR_UPLOADS.'/'.$thumbnailFilename);
+        return file_exists(\Yii::getAlias('@producer').'/web/'.self::DIR_UPLOADS.'/'.$filename);
     }
 }

producer/views/layouts/main.php

  * termes.
  */
 
+use common\helpers\Image;
 use common\logic\Feature\Feature\Feature;
 use common\logic\Feature\Feature\FeatureModule;
 use common\logic\Order\Order\Model\Order;
 <div class="container">
     <div id="left" class="col-md-3">
         <div class="fixed">
-            <?php if (strlen($producer->logo)): ?>
+            <?php if (strlen($producer->logo) && Image::isPhotoExist($producer->logo)): ?>
                 <div id="logo"<?php if (!is_null($producer->background_color_logo) && strlen($producer->background_color_logo)): ?> style="background-color:<?= Html::encode($producer->background_color_logo); ?>"<?php endif; ?>>
                     <a href="<?= \Yii::$app->urlManager->createUrl(['site/index']) ?>">
                         <img class="img-logo"