X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/1b46c19849820d4d500f0d9e7424228ab5f0712c..refs/pull/363/head:/app/PageRevision.php

diff --git a/app/PageRevision.php b/app/PageRevision.php
index dae74cd0f..ff469f0ed 100644
--- a/app/PageRevision.php
+++ b/app/PageRevision.php
@@ -3,7 +3,7 @@
 
 class PageRevision extends Model
 {
-    protected $fillable = ['name', 'html', 'text', 'markdown'];
+    protected $fillable = ['name', 'html', 'text', 'markdown', 'summary'];
 
     /**
      * Get the user that created the page revision
@@ -25,11 +25,26 @@ class PageRevision extends Model
 
     /**
      * Get the url for this revision.
+     * @param null|string $path
      * @return string
      */
-    public function getUrl()
+    public function getUrl($path = null)
     {
-        return $this->page->getUrl() . '/revisions/' . $this->id;
+        $url = $this->page->getUrl() . '/revisions/' . $this->id;
+        if ($path) return $url . '/' . trim($path, '/');
+        return $url;
+    }
+
+    /**
+     * Get the previous revision for the same page if existing
+     * @return \BookStack\PageRevision|null
+     */
+    public function getPrevious()
+    {
+        if ($id = static::where('page_id', '=', $this->page_id)->where('id', '<', $this->id)->max('id')) {
+            return static::find($id);
+        }
+        return null;
     }
 
 }