FIX Migration of blog 1.0 to 2.0 was broken

code/compat/pages/BlogEntry.php

@@ -34,30 +34,53 @@ class BlogEntry extends BlogPost implements MigratableObject {
 	 * {@inheritdoc}
 	 */
 	public function up() {
-		foreach($this->TagNames() as $tag) {
-			if($this->Tags()->filter('Title', $tag)->count()) {
-				continue;
-			}
 		
+		//Migrate comma separated tags into BlogTag objects.
+		foreach($this->TagNames() as $tag) {
+			
+			$existingTag = BlogTag::get()->filter('Title', $tag);
+			if($existingTag->count()) {
+				//if tag already exists we will simply add it to this post.
+				$tagObject = $existingTag->First();
+			
+			} else {
+
+				//if the tag is now we create it and add it to this post.
 				$tagObject = new BlogTag();
 				$tagObject->Title = $tag;
 				$tagObject->BlogID = $this->ParentID;
-
 				$tagObject->write();
 
-			$this->Tags()->add($tagObject);
+				
 			}
 
-		$this->PublishDate = $this->Date;
+			if($tagObject){
-		$this->AuthorNames = $this->Author;
+				$this->Tags()->add($tagObject);
+			}
+		}
 
+		//Store if the original entity was published or not (draft)
+		$published = $this->IsPublished();
 		// If a user has subclassed BlogEntry, it should not be turned into a BlogPost.
 		if($this->ClassName === 'BlogEntry') {
 			$this->ClassName = 'BlogPost';
 			$this->RecordClassName = 'BlogPost';
 		}
+		//Migrate these key data attributes
+		$this->PublishDate = $this->Date;
+		$this->AuthorNames = $this->Author;
+		$this->InheritSideBar = true;
 		
+		//Write and additionally publish the item if it was published before.
 		$this->write();
+		if($published){
+			$this->publish('Stage','Live');
+			$message = "PUBLISHED: ";
+		} else {
+			$message = "DRAFT: ";
+		}
+		
+		return $message . $this->Title;
 	}
 
 	/**
@@ -79,17 +102,6 @@ class BlogEntry extends BlogPost implements MigratableObject {
 		return $results;
 	}
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function requireDefaultRecords() {
-		parent::requireDefaultRecords();
-
-		if(BlogMigrationTask::config()->run_during_dev_build) {
-			$task = new BlogMigrationTask();
-			$task->up();
-		}
-	}
 }
 
 /**

code/compat/pages/BlogHolder.php

@@ -31,14 +31,36 @@ class BlogHolder extends BlogTree implements MigratableObject {
 		return false;
 	}
 
+
+	//Overload these to stop the Uncaught Exception: Object->__call(): the method 'parent' does not exist on 'BlogHolder' error.
+	public function validURLSegment() {
+		return true;
+	}
+	public function syncLinkTracking() {
+		return null;
+	}
+
 	/**
 	 * {@inheritdoc}
 	 */
 	public function up() {
+
+		$published = $this->IsPublished();
+
 		if($this->ClassName === 'BlogHolder') {
 			$this->ClassName = 'Blog';
+			$this->RecordClassName = 'Blog';
 			$this->write();
 		}
+
+		if($published){
+			$this->publish('Stage','Live');
+			$message = "PUBLISHED: ";
+		} else {
+			$message = "DRAFT: ";
+		}
+		
+		return $message . $this->Title;
 	}
 }
 

code/compat/pages/BlogTree.php

@@ -28,10 +28,20 @@ class BlogTree extends Page implements MigratableObject {
 	 * {@inheritdoc}
 	 */
 	public function up() {
+		$published = $this->IsPublished();
 		if($this->ClassName === 'BlogTree') {
 			$this->ClassName = 'Page';
+			$this->RecordClassName = 'Page';
 			$this->write();
 		}
+		if($published){
+			$this->publish('Stage','Live');
+			$message = "PUBLISHED: ";
+		} else {
+			$message = "DRAFT: ";
+		}
+		
+		return $message . $this->Title;
 	}
 }
 

code/compat/tasks/BlogMigrationTask.php

@@ -19,17 +19,10 @@ class BlogMigrationTask extends MigrationTask {
 		$this->message('Migrating legacy blog records');
 
 		foreach($classes as $class) {
-			if(is_subclass_of($class, 'SiteTree')) {
+				
-				foreach(array('Stage', 'Live') as $stage) {
-					$oldMode = Versioned::get_reading_mode();
-					Versioned::reading_stage($stage);
-					$this->upClass($class, $stage);
-					Versioned::set_reading_mode($oldMode);
-				}
-			} else {
 				$this->upClass($class);
 			}
-		}
+		
 	}
 
 	/**
@@ -39,7 +32,7 @@ class BlogMigrationTask extends MigrationTask {
 		if(Controller::curr() instanceof DatabaseAdmin) {
 			DB::alteration_message($text, 'obsolete');
 		} else {
-			Debug::message($text);
+			echo $text . "<br/>";
 		}
 	}
 
@@ -49,20 +42,23 @@ class BlogMigrationTask extends MigrationTask {
 	 * @param string $class
 	 * @param null|string $stage
 	 */
-	protected function upClass($class, $stage = null) {
+	protected function upClass($class) {
 		if(!class_exists($class)) {
 			return;
 		}
 
+		if(is_subclass_of($class, 'SiteTree')) {
+			$items = SiteTree::get()->filter('ClassName', $class);
+		} else {
 			$items = $class::get();
+		}
 
 		if($count = $items->count()) {
 			$this->message(
 				sprintf(
-					'Migrating %s legacy %s records in stage %s.',
+					'Migrating %s legacy %s records.',
 					$count,
-					$class,
+					$class
-					$stage
 				)
 			);
 
@@ -76,7 +72,8 @@ class BlogMigrationTask extends MigrationTask {
 				/**
 				 * @var MigratableObject $item
 				 */
-				$item->up();
+				$result = $item->up();
+				$this->message($result);
 
 				$item->extend('onAfterUp');
 			}

code/compat/widgets/ArchiveWidget.php

@@ -46,5 +46,7 @@ class ArchiveWidget extends BlogArchiveWidget implements MigratableObject {
 
 		$this->ClassName = 'BlogArchiveWidget';
 		$this->write();
+		return "Migrated " . $this->ArchiveType . " archive widget";
+
 	}
 }

code/compat/widgets/TagCloudWidget.php

@@ -39,5 +39,6 @@ class TagCloudWidget extends BlogTagsWidget implements MigratableObject {
 	public function up() {
 		$this->ClassName = 'BlogTagsWidget';
 		$this->write();
+		return "Migrated " . $this->Title . " widget";
 	}
 }