Version 4.3.0

applications/downloads/hooks/Forum.php

@@ -0,0 +1,44 @@
+//<?php
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	exit;
+}
+
+class downloads_hook_Forum extends _HOOK_CLASS_
+{
+	/**
+	 * Delete
+	 *
+	 * @return	void
+	 */
+	protected function delete()
+	{
+		/* Load forum and verify that it is not used for comments */
+		$nodeClass = $this->nodeClass;
+		if ( \IPS\Request::i()->subnode )
+		{
+			$nodeClass = $nodeClass::$subnodeClass;
+		}
+
+		try
+		{
+			$node = call_user_func( "{$nodeClass}::load", \IPS\Request::i()->id );
+		}
+		catch ( \OutOfRangeException $e )
+		{
+			\IPS\Output::i()->error( 'node_error', '2S101/J', 404, '' );
+		}
+
+		/* Is any downloads category synced with this forum? */
+		if ( $dbCategory = $node->isUsedByADownloadsCategory() )
+		{
+			\IPS\Member::loggedIn()->language()->words['downloads_forum_used'] = sprintf( \IPS\Member::loggedIn()->language()->get('downloads_forum_used'), $dbCategory->_title );
+			\IPS\Output::i()->error( 'downloads_forum_used', '1D372/1', 403, '' );
+		}
+
+		return call_user_func_array( 'parent::delete', func_get_args() );
+	}
+
+}

applications/downloads/hooks/Forums.php

@@ -9,19 +9,39 @@ if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
 class downloads_hook_Forums extends _HOOK_CLASS_
 {
 	/**
-	 * Delete Record
+	 * [Node] Get buttons to display in tree
 	 *
-	 * @return	void
+	 * @param	string	$url		Base URL
+	 * @param	bool	$subnode	Is this a subnode?
+	 * @return	array
 	 */
-	public function delete()
+	public function getButtons( $url, $subnode=FALSE )
 	{
-		foreach( new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'downloads_categories', array( "cforum_id=?", $this->_id ) ), 'IPS\downloads\Category' ) AS $category )
+		$buttons = parent::getButtons( $url, $subnode );
+
+		if ( isset( $buttons['delete'] ) AND $this->isUsedByADownloadsCategory() )
 		{
-			$category->forum_id = 0;
-			$category->save();
+			unset( $buttons['delete']['data'] );
 		}
-		
-		return call_user_func_array( 'parent::delete', func_get_args() );
+
+		return $buttons;
+	}
+
+	/**
+	 * Is this Forum used by any downloads app category ?
+	 *
+	 * @return bool|\IPS\downloads\Category
+	 */
+	public function isUsedByADownloadsCategory()
+	{
+		foreach( new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'downloads_categories' ), 'IPS\downloads\Category' ) AS $category )
+		{
+			if ( $category->forum_id and $category->forum_id == $this->id )
+			{
+				return $category;
+			}
+		}
+		return FALSE;
 	}
 
 }