Add Header Link Pagination

Author: natanfelles

application/Config/Pager.php

@@ -19,7 +19,8 @@ class Pager extends BaseConfig
 	*/
 	public $templates = [
 		'default_full'   => 'CodeIgniter\Pager\Views\default_full',
-		'default_simple' => 'CodeIgniter\Pager\Views\default_simple'
+		'default_simple' => 'CodeIgniter\Pager\Views\default_simple',
+		'default_header' => 'CodeIgniter\Pager\Views\default_header'
 	];
 
 	/*

system/HTTP/Response.php

@@ -45,7 +45,7 @@
  */
 class RedirectException extends \Exception
 {
-	
+
 }
 
 /**
@@ -343,6 +343,23 @@ public function setDate(\DateTime $date)
 
 	//--------------------------------------------------------------------
 
+	/**
+	 * Set the Link Header
+	 *
+	 * @param \CodeIgniter\Pager\Pager $pager
+	 *
+	 * @return Response
+	 */
+	public function setLink(Pager $pager)
+	{
+		// http://tools.ietf.org/html/rfc5988
+		$this->setHeader('Link', $pager->links('default', 'default_header'));
+
+		return $this;
+	}
+
+	//--------------------------------------------------------------------
+
 	/**
 	 * Sets the Content Type header for this response with the mime type
 	 * and, optionally, the charset.

system/Pager/Views/default_header.php

@@ -0,0 +1,18 @@
+<?php
+$pager->setSurroundCount(0);
+$links = '';
+if ($pager->hasPrevious())
+{
+	$links .= '<' . $pager->getFirst() . '>; rel="first",';
+	$links .= '<' . $pager->getPrevious() . '>; rel="prev"';
+}
+if ($pager->hasPrevious() && $pager->hasNext())
+{
+	$links .= ',';
+}
+if ($pager->hasNext())
+{
+	$links .= '<' . $pager->getNext() . '>; rel="next",';
+	$links .= '<' . $pager->getLast() . '>; rel="last"';
+}
+echo $links;