From b9a569b71f8a058142bcb23d4ba4cd22ab2c624d Mon Sep 17 00:00:00 2001
From: Andy Miller <rhuk@mac.com>
Date: Mon, 8 Dec 2014 15:30:29 -0700
Subject: [PATCH] Fix for prevSibling/nextSibling/isFirst/isLast when limit is
 imposed on parent collection

---
 system/src/Grav/Common/Page/Page.php | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/system/src/Grav/Common/Page/Page.php b/system/src/Grav/Common/Page/Page.php
index 862b1f6e6..798034aa2 100644
--- a/system/src/Grav/Common/Page/Page.php
+++ b/system/src/Grav/Common/Page/Page.php
@@ -1186,7 +1186,7 @@ class Page
      */
     public function isFirst()
     {
-        $collection = $this->parent()->collection();
+        $collection = $this->parent()->collection('content', false);
         return $collection->isFirst($this->path());
     }
 
@@ -1197,7 +1197,7 @@ class Page
      */
     public function isLast()
     {
-        $collection = $this->parent()->collection();
+        $collection = $this->parent()->collection('content', false);
         return $collection->isLast($this->path());
     }
 
@@ -1229,7 +1229,7 @@ class Page
      */
     public function adjacentSibling($direction = 1)
     {
-        $collection = $this->parent()->collection();
+        $collection = $this->parent()->collection('content', false);
         return $collection->adjacentSibling($this->path(), $direction);
     }
 
@@ -1318,10 +1318,11 @@ class Page
      * Get a collection of pages in the current context.
      *
      * @param string|array $params
+     * @param boolean $pagination
      * @return Collection
      * @throws \InvalidArgumentException
      */
-    public function collection($params = 'content')
+    public function collection($params = 'content', $pagination = true)
     {
         if (is_string($params)) {
             $params = (array) $this->value('header.'.$params);
@@ -1378,13 +1379,16 @@ class Page
         // New Custom event to handle things like pagination.
         $grav->fireEvent('onCollectionProcessed', new Event(['collection' => $collection]));
 
-        $params = $collection->params();
+        // Slice and dice the collection if pagination is required
+        if ($pagination) {
+            $params = $collection->params();
 
-        $limit = isset($params['limit']) ? $params['limit'] : 0;
-        $start = !empty($params['pagination']) ? ($uri->currentPage() - 1) * $limit : 0;
+            $limit = isset($params['limit']) ? $params['limit'] : 0;
+            $start = !empty($params['pagination']) ? ($uri->currentPage() - 1) * $limit : 0;
 
-        if ($limit && $collection->count() > $limit) {
-            $collection->slice($start, $limit);
+            if ($limit && $collection->count() > $limit) {
+                $collection->slice($start, $limit);
+            }
         }
 
         return $collection;