From ff7c3f55e4083aaf1e5e12c8919348e50cc84687 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Tue, 21 Mar 2006 22:46:38 +0000
Subject: [PATCH] Add meta_key and meta_value options to get_posts() and
 get_pages(). Props MichaelH. fixes #2563

git-svn-id: https://develop.svn.wordpress.org/trunk@3656 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/functions.php               | 22 +++++++++++++---------
 wp-includes/template-functions-post.php | 18 +++++++++++-------
 2 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 322ba46749..ec8a192e1b 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -1451,18 +1451,19 @@ function get_posts($args) {
 		$r = &$args;
 	else
 		parse_str($args, $r);
-	parse_str($args, $r);
 
 	$defaults = array('numberposts' => 5, 'offset' => 0, 'category' => '',
-		'orderby' => 'post_date', 'order' => 'DESC', 'include' => '', 'exclude' => '');
+		'orderby' => 'post_date', 'order' => 'DESC', 'include' => '', 'exclude' => '', 'meta_key' => '', 'meta_value' =>'');
 	$r = array_merge($defaults, $r);
 	extract($r);
 
 	$inclusions = '';
 	if ( !empty($include) ) {
-		$offset = 0;	//ignore offset, category, and exclude params if using include
+		$offset = 0;	//ignore offset, category, exclude, meta_key, and meta_value params if using include
 		$category = ''; 
 		$exclude = '';  
+		$meta_key = '';
+		$meta_value = '';
 		$incposts = preg_split('/[\s,]+/',$include);
 		$numberposts = count($incposts);  // only the number of posts included
 		if ( count($incposts) ) {
@@ -1492,12 +1493,15 @@ function get_posts($args) {
 	if (!empty($exclusions)) 
 		$exclusions .= ')';
 
-	$posts = $wpdb->get_results(
-		"SELECT DISTINCT * FROM $wpdb->posts " .
-		( empty( $category ) ? "" : ", $wpdb->post2cat " ) .
-		" WHERE (post_type = 'post' AND post_status = 'publish') $exclusions $inclusions " .
-		( empty( $category ) ? "" : "AND $wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $category. " " ) .
-		" GROUP BY $wpdb->posts.ID ORDER BY " . $orderby . " " . $order . " LIMIT " . $offset . ',' . $numberposts );
+	$query ="SELECT DISTINCT * FROM $wpdb->posts " ;
+	$query .= ( empty( $category ) ? "" : ", $wpdb->post2cat " ) ; 
+	$query .= ( empty( $meta_key ) ? "" : ", $wpdb->postmeta " ) ; 
+	$query .= " WHERE (post_type = 'post' AND post_status = 'publish') $exclusions $inclusions " ;
+	$query .= ( empty( $category ) ? "" : "AND ($wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $category. ") " ) ;
+	$query .= ( empty( $meta_key ) | empty($meta_value)  ? "" : " AND ($wpdb->posts.ID = $wpdb->postmeta.post_id AND $wpdb->postmeta.meta_key = '$meta_key' AND $wpdb->postmeta.meta_value = '$meta_value' )" ) ;
+	$query .= " GROUP BY $wpdb->posts.ID ORDER BY " . $orderby . " " . $order . " LIMIT " . $offset . ',' . $numberposts ;
+
+	$posts = $wpdb->get_results($query);
 
 	update_post_caches($posts);
 
diff --git a/wp-includes/template-functions-post.php b/wp-includes/template-functions-post.php
index 794eded6ac..11a9232519 100644
--- a/wp-includes/template-functions-post.php
+++ b/wp-includes/template-functions-post.php
@@ -306,14 +306,16 @@ function &get_pages($args = '') {
 		parse_str($args, $r);
 
 	$defaults = array('child_of' => 0, 'sort_order' => 'ASC', 'sort_column' => 'post_title',
-		'hierarchical' => 1, $exclude => '', $include => '');
+				'hierarchical' => 1, 'exclude' => '', 'include' => '', 'meta_key' => '', 'meta_value' => '');
 	$r = array_merge($defaults, $r);
 	extract($r);
 
 	$inclusions = '';
 	if ( !empty($include) ) {
-		$child_of = 0; //ignore child_of and exclude params if using include 
+		$child_of = 0; //ignore child_of, exclude, meta_key, and meta_value params if using include 
 		$exclude = '';  
+		$meta_key = '';
+		$meta_value = '';
 		$incpages = preg_split('/[\s,]+/',$include);
 		if ( count($incpages) ) {
 			foreach ( $incpages as $incpage ) {
@@ -342,11 +344,13 @@ function &get_pages($args = '') {
 	if (!empty($exclusions)) 
 		$exclusions .= ')';
 
-	$pages = $wpdb->get_results("SELECT * " .
-		"FROM $wpdb->posts " .
-		"WHERE post_type = 'page' AND post_status = 'publish' " .
-		"$exclusions $inclusions" .
-		"ORDER BY " . $sort_column . " " . $sort_order);
+	$query = "SELECT * FROM $wpdb->posts " ;
+	$query .= ( empty( $meta_key ) ? "" : ", $wpdb->postmeta " ) ; 
+	$query .= " WHERE (post_type = 'page' AND post_status = 'publish') $exclusions $inclusions " ;
+	$query .= ( empty( $meta_key ) | empty($meta_value)  ? "" : " AND ($wpdb->posts.ID = $wpdb->postmeta.post_id AND $wpdb->postmeta.meta_key = '$meta_key' AND $wpdb->postmeta.meta_value = '$meta_value' )" ) ;
+	$query .= " ORDER BY " . $sort_column . " " . $sort_order ;
+
+	$pages = $wpdb->get_results($query);
 
 	if ( empty($pages) )
 		return array();