From b9bb0888422587a58221f103945105cba32e38e2 Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@kanboard.net>
Date: Sat, 19 Mar 2016 12:17:34 -0400
Subject: Render default avatar provider when having no user linked

---
 app/Core/User/Avatar/AvatarManager.php | 26 ++++++++++++++++++++++++++
 app/Helper/UserHelper.php              |  7 ++++++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/app/Core/User/Avatar/AvatarManager.php b/app/Core/User/Avatar/AvatarManager.php
index afaf79d2..71bd8aa5 100644
--- a/app/Core/User/Avatar/AvatarManager.php
+++ b/app/Core/User/Avatar/AvatarManager.php
@@ -61,4 +61,30 @@ class AvatarManager
 
         return '';
     }
+
+    /**
+     * Render default provider for unknown users (first provider registered)
+     *
+     * @access public
+     * @param  integer $size
+     * @return string
+     */
+    public function renderDefault($size)
+    {
+        if (count($this->providers) > 0) {
+            ksort($this->providers);
+            $provider = current($this->providers);
+
+            $user = array(
+                'id' => 0,
+                'username' => '',
+                'name' => '?',
+                'email' => '',
+            );
+
+            return $provider->render($user, $size);
+        }
+
+        return '';
+    }
 }
diff --git a/app/Helper/UserHelper.php b/app/Helper/UserHelper.php
index 90f84033..c60c35c2 100644
--- a/app/Helper/UserHelper.php
+++ b/app/Helper/UserHelper.php
@@ -171,7 +171,12 @@ class UserHelper extends Base
      */
     public function avatar($user_id, $username, $name, $email)
     {
-        $html = $this->avatarManager->render($user_id, $username, $name, $email, 48);
+        if (empty($user_id) && empty($username)) {
+            $html = $this->avatarManager->renderDefault(48);
+        } else {
+            $html = $this->avatarManager->render($user_id, $username, $name, $email, 48);
+        }
+
         return '<div class="avatar">'.$html.'</div>';
     }
 }
-- 
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