fix behavior of oneachside = 1 with paginator

Author: taylorotwell

src/Illuminate/Pagination/UrlWindow.php

@@ -73,7 +73,7 @@ protected function getSmallSlider()
      */
     protected function getUrlSlider($onEachSide)
     {
-        $window = $onEachSide * 2;
+        $window = $onEachSide + 4;
 
         if (! $this->hasPages()) {
             return ['first' => null, 'slider' => null, 'last' => null];
@@ -83,14 +83,14 @@ protected function getUrlSlider($onEachSide)
         // just render the beginning of the page range, followed by the last 2 of the
         // links in this list, since we will not have room to create a full slider.
         if ($this->currentPage() <= $window) {
-            return $this->getSliderTooCloseToBeginning($window);
+            return $this->getSliderTooCloseToBeginning($window, $onEachSide);
         }
 
         // If the current page is close to the ending of the page range we will just get
         // this first couple pages, followed by a larger window of these ending pages
         // since we're too close to the end of the list to create a full on slider.
         elseif ($this->currentPage() > ($this->lastPage() - $window)) {
-            return $this->getSliderTooCloseToEnding($window);
+            return $this->getSliderTooCloseToEnding($window, $onEachSide);
         }
 
         // If we have enough room on both sides of the current page to build a slider we
@@ -103,12 +103,13 @@ protected function getUrlSlider($onEachSide)
      * Get the slider of URLs when too close to beginning of window.
      *
      * @param  int  $window
+     * @param  int  $onEachSide
      * @return array
      */
-    protected function getSliderTooCloseToBeginning($window)
+    protected function getSliderTooCloseToBeginning($window, $onEachSide)
     {
         return [
-            'first' => $this->paginator->getUrlRange(1, $window + 2),
+            'first' => $this->paginator->getUrlRange(1, $window + $onEachSide),
             'slider' => null,
             'last' => $this->getFinish(),
         ];
@@ -118,12 +119,13 @@ protected function getSliderTooCloseToBeginning($window)
      * Get the slider of URLs when too close to ending of window.
      *
      * @param  int  $window
+     * @param  int  $onEachSide
      * @return array
      */
-    protected function getSliderTooCloseToEnding($window)
+    protected function getSliderTooCloseToEnding($window, $onEachSide)
     {
         $last = $this->paginator->getUrlRange(
-            $this->lastPage() - ($window + 2),
+            $this->lastPage() - ($window + ($onEachSide - 1)),
             $this->lastPage()
         );
 

tests/Pagination/UrlWindowTest.php

@@ -25,28 +25,31 @@ public function testPresenterCanGetAUrlRangeForASmallNumberOfUrls()
     public function testPresenterCanGetAUrlRangeForAWindowOfLinks()
     {
         $array = [];
-        for ($i = 1; $i <= 13; $i++) {
+        for ($i = 1; $i <= 20; $i++) {
             $array[$i] = 'item'.$i;
         }
-        $p = new LengthAwarePaginator($array, count($array), 1, 7);
+        $p = new LengthAwarePaginator($array, count($array), 1, 12);
         $window = new UrlWindow($p);
         $slider = [];
-        for ($i = 4; $i <= 10; $i++) {
+        for ($i = 9; $i <= 15; $i++) {
             $slider[$i] = '/?page='.$i;
         }
 
-        $this->assertEquals(['first' => [1 => '/?page=1', 2 => '/?page=2'], 'slider' => $slider, 'last' => [12 => '/?page=12', 13 => '/?page=13']], $window->get());
+        $this->assertEquals(['first' => [1 => '/?page=1', 2 => '/?page=2'], 'slider' => $slider, 'last' => [19 => '/?page=19', 20 => '/?page=20']], $window->get());
 
         /*
          * Test Being Near The End Of The List
          */
-        $p = new LengthAwarePaginator($array, count($array), 1, 8);
+        $array = [];
+        for ($i = 1; $i <= 13; $i++) {
+            $array[$i] = 'item'.$i;
+        }
+        $p = new LengthAwarePaginator($array, count($array), 1, 10);
         $window = new UrlWindow($p);
         $last = [];
-        for ($i = 5; $i <= 13; $i++) {
+        for ($i = 4; $i <= 13; $i++) {
             $last[$i] = '/?page='.$i;
         }
-
         $this->assertEquals(['first' => [1 => '/?page=1', 2 => '/?page=2'], 'slider' => null, 'last' => $last], $window->get());
     }