From 706a62a13429d9e75ca8c5ff47b9b4732a473bb3 Mon Sep 17 00:00:00 2001
From: Scott Taylor <wonderboymusic@git.wordpress.org>
Date: Sat, 26 Sep 2015 06:40:39 +0000
Subject: [PATCH] Comments: add `__get()` and `__set()` to `WP_Comment` to
 provide BC for plugins that are grabbing post properties from the comment
 object due to an (unintended?) side effect of `JOIN`ing with the posts table
 in `WP_Comment_Query`, see [17667]. `'fields'` used to default to `*`, so the
 `JOIN` would grab every field from both tables. #YOLO

Since [34310], these properties no longer exist. We can lazy load them for plugins with the magic methods.

Fixes #27571.


git-svn-id: https://develop.svn.wordpress.org/trunk@34583 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/class-wp-comment.php | 39 ++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/src/wp-includes/class-wp-comment.php b/src/wp-includes/class-wp-comment.php
index ab6bf14b55..d6336937e2 100644
--- a/src/wp-includes/class-wp-comment.php
+++ b/src/wp-includes/class-wp-comment.php
@@ -320,4 +320,43 @@ final class WP_Comment {
 
 		return false;
 	}
+
+	/**
+	 * Whether a comment has post from which to retrieve magic properties
+	 *
+	 * @since 4.4.0
+	 * @access public
+	 *
+	 * @param string $name
+	 * @return bool
+	 */
+	public function __isset( $name ) {
+		if (
+			0 === (int) $this->comment_post_ID
+			|| property_exists( $this, $name )
+		) {
+			return;
+		}
+
+		$post = get_post( $this->comment_post_ID );
+		if ( $post ) {
+			return property_exists( $post, $name );
+		}
+	}
+
+	/**
+	 * Magic getter for $post properties
+	 *
+	 * @since 4.4.0
+	 * @access public
+	 *
+	 * @param string $name
+	 * @return mixed
+	 */
+	public function __get( $name ) {
+		$post = get_post( $this->comment_post_ID );
+		if ( $post ) {
+			return $post->$name;
+		}
+	}
 }