From 0d6b44aa44377cbabbc7a538acb29a74092088b8 Mon Sep 17 00:00:00 2001
From: Franco Springveldt <franco@silverstripe.com>
Date: Sat, 17 Jun 2017 19:20:29 +1200
Subject: [PATCH 1/2] FIX mysql >= 5.7 sql_mode=only_full_group_by error

---
 code/widgets/BlogArchiveWidget.php | 69 ++++++++++++++----------------
 1 file changed, 32 insertions(+), 37 deletions(-)

diff --git a/code/widgets/BlogArchiveWidget.php b/code/widgets/BlogArchiveWidget.php
index 66cdd45..2755664 100644
--- a/code/widgets/BlogArchiveWidget.php
+++ b/code/widgets/BlogArchiveWidget.php
@@ -84,52 +84,47 @@ class BlogArchiveWidget extends Widget
     /**
      * Returns a list of months where blog posts are present.
      *
-     * @return DataList
+     * @return ArrayList
      */
     public function getArchive()
     {
-        $query = $this->Blog()->getBlogPosts()->dataQuery();
+        $format = ($this->ArchiveType == 'Yearly') ? '%Y' : '%Y-%m';
+        $publishDate = DB::get_conn()->formattedDatetimeClause('"PublishDate"', $format);
+        $fields = array(
+            'PublishDate' => $publishDate,
+            'Total' => "Count('PublishDate')"
+        );
 
-        if ($this->ArchiveType == 'Yearly') {
-            $query->groupBy('DATE_FORMAT("PublishDate", \'%Y\')');
-        } else {
-            $query->groupBy('DATE_FORMAT("PublishDate", \'%Y-%M\')');
-        }
+        $stage = Versioned::current_stage();
+        $suffix = ($stage == 'Stage') ? '' : "_{$stage}";
+        $query = SQLSelect::create($fields, "BlogPost{$suffix}")
+            ->addGroupBy($publishDate)
+            ->addOrderBy('PublishDate Desc')
+            ->addWhere(array('PublishDate < ?' => SS_Datetime::now()));
 
-        $posts = $this->Blog()->getBlogPosts()->setDataQuery($query);
+        $posts = $query->execute();
+        $result = new ArrayList();
+        while ($next = $posts->next()) {
+            $date = Date::create();
+            $date->setValue(strtotime($next['PublishDate']));
+            $year = $date->Format('Y');
 
-        if ($this->NumberToDisplay > 0) {
-            $posts = $posts->limit($this->NumberToDisplay);
-        }
-
-        $archive = new ArrayList();
-
-        if ($posts->count() > 0) {
-            foreach ($posts as $post) {
-                /**
-                 * @var BlogPost $post
-                 */
-                $date = Date::create();
-                $date->setValue($post->PublishDate);
-
-                if ($this->ArchiveType == 'Yearly') {
-                    $year = $date->Format("Y");
-                    $month = null;
-                    $title = $year;
-                } else {
-                    $year = $date->Format("Y");
-                    $month = $date->Format("m");
-                    $title = $date->FormatI18N("%B %Y");
-                }
-
-                $archive->push(new ArrayData(array(
-                    'Title' => $title,
-                    'Link' => Controller::join_links($this->Blog()->Link('archive'), $year, $month)
-                )));
+            if ($this->ArchiveType == 'Yearly') {
+                $month = null;
+                $title = $year;
+            } else {
+                $month = $date->Format('m');
+                $title = $date->FormatI18N('%B %Y');
             }
+
+            $result->push(new ArrayData(array(
+                'Title' => $title,
+                'Link' => Controller::join_links($this->Blog()->Link('archive'), $year, $month)
+            )));
         }
 
-        return $archive;
+        $this->extend('updateGetArchive', $result);
+        return $result;
     }
 }
 

From 236bf6d8fc86466a953019319202440f071c8133 Mon Sep 17 00:00:00 2001
From: Franco Springveldt <franco@silverstripe.com>
Date: Wed, 9 Aug 2017 09:49:58 +1200
Subject: [PATCH 2/2] FIX added date formatting

---
 code/widgets/BlogArchiveWidget.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/widgets/BlogArchiveWidget.php b/code/widgets/BlogArchiveWidget.php
index 2755664..e6b7b8f 100644
--- a/code/widgets/BlogArchiveWidget.php
+++ b/code/widgets/BlogArchiveWidget.php
@@ -100,7 +100,7 @@ class BlogArchiveWidget extends Widget
         $query = SQLSelect::create($fields, "BlogPost{$suffix}")
             ->addGroupBy($publishDate)
             ->addOrderBy('PublishDate Desc')
-            ->addWhere(array('PublishDate < ?' => SS_Datetime::now()));
+            ->addWhere(array('PublishDate < ?' => SS_Datetime::now()->Format('Y-m-d')));
 
         $posts = $query->execute();
         $result = new ArrayList();