Version 4.5.0

applications/forums/api/GraphQL/Mutations/VoteQuestion.php

@@ -0,0 +1,109 @@
+<?php
+/**
+ * @brief		GraphQL: Vote on a question
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Community Suite
+ * @since		02 Jan 2019
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\forums\api\GraphQL\Mutations;
+use GraphQL\Type\Definition\ObjectType;
+use IPS\Api\GraphQL\TypeRegistry;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Vote on a question mutation for GraphQL API
+ */
+class _VoteQuestion
+{
+	/*
+	 * @brief 	Query description
+	 */
+	public static $description = "Vote on a question";
+
+	/*
+	 * Mutation arguments
+	 */
+	public function args()
+	{
+		return [
+			'id' => TypeRegistry::nonNull( TypeRegistry::id() ),
+			'vote' => TypeRegistry::nonNull( \IPS\forums\api\GraphQL\TypeRegistry::vote() ),
+		];
+	}
+
+	/**
+	 * Return the mutation return type
+	 */
+	public function type() 
+	{
+		return \IPS\forums\api\GraphQL\TypeRegistry::topic();
+	}
+
+	/**
+	 * Resolves this mutation
+	 *
+	 * @param 	mixed 	Value passed into this resolver
+	 * @param 	array 	Arguments
+	 * @param 	array 	Context values
+	 * @return	\IPS\forums\Forum
+	 */
+	public function resolve($val, $args)
+	{
+		try
+		{
+			$topic = \IPS\forums\Topic::loadAndCheckPerms( $args['id'] );
+		}
+		catch ( \OutOfRangeException $e )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'NO_TOPIC', 'GQL/0008/1', 400 );
+		}
+
+		if( !$topic->can('read') )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'INVALID_ID', 'GQL/0008/2', 403 );
+		}
+
+		if( !$topic->isQuestion() )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'NON_QUESTION', 'GQL/0008/3', 403 );
+		}
+
+		if( !$topic->canVote() )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'CANNOT_VOTE', 'GQL/0008/4', 403 );
+		}
+
+		$rating = $args['vote'] == 'UP' ? 1 : -1;
+
+		// If we have an existing vote, undo that
+		$ratings = $topic->votes();
+		if ( isset( $ratings[ \IPS\Member::loggedIn()->member_id ] ) )
+		{
+			\IPS\Db::i()->delete( 'forums_question_ratings', array( 'topic=? AND member=?', $topic->tid, \IPS\Member::loggedIn()->member_id ) );
+		}
+		
+		\IPS\Db::i()->insert( 'forums_question_ratings', array(
+			'topic'		=> $topic->tid,
+			'forum'		=> $topic->forum_id,
+			'member'	=> \IPS\Member::loggedIn()->member_id,
+			'rating'	=> $rating,
+			'date'		=> time()
+		), TRUE );
+		
+		/* Rebuild count */
+		$topic->question_rating = \IPS\Db::i()->select( 'SUM(rating)', 'forums_question_ratings', array( 'topic=?', $topic->tid ), NULL, NULL, NULL, NULL, \IPS\Db::SELECT_FROM_WRITE_SERVER )->first();
+		$topic->save();
+
+		return $topic;
+	}
+}