FIX, resolving issue #16.

README.md

@@ -1,6 +1,6 @@
 # [mediawesome](https://packagist.org/packages/nglasl/silverstripe-mediawesome)
 
-_The current release is **4.0.0**_
+_The current release is **4.0.1**_
 
 > This module allows creation of dynamic media holders/pages with CMS customisable types and attributes (blogs, events, news, publications), including versioning.
 

src/pages/MediaHolder.php

@@ -52,7 +52,7 @@ public function getCMSFields() {
 				'MediaTypeID',
 				'Media Type',
 				MediaType::get()->map()->toArray()
-			)->setHasEmptyDefault(true), 'Title');
+			), 'Title');
 
 		// Allow customisation of the media URL format.
 
@@ -95,6 +95,18 @@ public function getCMSFields() {
 		return $fields;
 	}
 
+	public function onBeforeWrite() {
+
+		parent::onBeforeWrite();
+
+		// Apply the first media type by default.
+
+		if(!$this->MediaTypeID) {
+			$existing = MediaType::get()->first();
+			$this->MediaTypeID = $existing->ID;
+		}
+	}
+
 	/**
 	 *	Retrieve any `MediaHolder` children of this `MediaHolder`.
 	 *

src/pages/MediaPage.php

@@ -370,18 +370,6 @@ public function onBeforeWrite() {
 			if($type->exists()) {
 				$this->MediaTypeID = $type->ID;
 			}
-			else {
-				$existing = MediaType::get()->first();
-				$parent->MediaTypeID = $existing->ID;
-				$parent->write();
-				if($parent->isPublished()) {
-
-					// The parent needs to be published, otherwise it'll be considered an invalid media holder.
-
-					$parent->publishRecursive();
-				}
-				$this->MediaTypeID = $existing->ID;
-			}
 		}
 	}