NEW Show "post" date and author in CMS list view for blog entries

_config/config.yml

@@ -0,0 +1,3 @@
+LeftAndMain:
+  extensions:
+    - BlogLeftMainExtension

code/BlogLeftMainExtension.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * Influences the page list behaviour of blog entries in the CMS.
+ * Adds author and "post date" fields.
+ */
+class BlogLeftMainExtension extends Extension {
+	function updateListView($listView) {
+		$parentId = $listView->getController()->getRequest()->requestVar('ParentID');
+		$parent = ($parentId) ? Page::get()->byId($parentId) : new Page();
+
+		// Only apply logic for this page type
+		if($parent && $parent instanceof BlogHolder) {
+			$gridField = $listView->Fields()->dataFieldByName('Page');
+			if($gridField) {
+				// Sort by post date
+				$list = $gridField->getList();
+				$list = $list->leftJoin('BlogEntry', '"BlogEntry"."ID" = "SiteTree"."ID"');
+				$gridField->setList($list->sort('Date', 'DESC'));
+
+				// Change columns
+				$cols = $gridField->getConfig()->getComponentByType('GridFieldDataColumns');
+				if($cols) {
+					$fields = $cols->getDisplayFields($gridField);
+					$castings = $cols->getFieldCasting($gridField);
+
+					// Add author to columns
+					$fields['Author'] = _t("BlogEntry.AU", "Author");
+					// Add post date and remove duplicate "created" date
+					$fields['Date'] = _t("BlogEntry.DT", "Date");
+					$castings['Date'] = 'SS_Datetime->Ago';
+					if(isset($fields['Created'])) unset($fields['Created']);
+
+					$cols->setDisplayFields($fields);
+					$cols->setFieldCasting($castings);
+				}
+			}
+		}
+	}
+}