Allow posts to be transfered to different users before deleting users, fixes #668

git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@1361 7be80a69-a1ef-0310-a953-fb0f7c49ff36

2 files changed, 50 insertions, 4 deletions

diff --git a/wp-admin/includes/mu.php b/wp-admin/includes/mu.php
index 15cc9c6..746cdcd 100644
--- a/wp-admin/includes/mu.php
+++ b/wp-admin/includes/mu.php
@@ -127,6 +127,38 @@ function wpmu_delete_user($id) {
 	return true;
 }
 
+function confirm_delete_users( $users ) {
+	if( !is_array( $users ) )
+		return;
+	echo '<p>Transfer posts before deleting users:</p>';
+	echo '<form action="wpmu-edit.php?action=allusers" method="post">';
+	echo '<input type="hidden" name="alluser_transfer_delete" />';
+	wp_nonce_field( 'allusers' );
+	foreach ( (array) $_POST['allusers'] as $key => $val ) {
+		if( $val != '' && $val != '0' && $val != '1' ) {
+			$blogs = get_blogs_of_user( $val, true );
+			foreach ( (array) $blogs as $key => $details ) {
+				$blog_users = get_users_of_blog( $details->userblog_id );
+				if( is_array( $blog_users ) && !empty( $blog_users ) ) {
+					echo "<p><a href='http://{$details->domain}{$details->path}'>{$details->blogname}</a> ";
+					echo "<select name='blog[$val][{$key}]'>";
+					$out = '';
+					foreach( $blog_users as $user ) {
+						if( $user->user_id != $val )
+							$out .= "<option value='{$user->user_id}'> {$user->user_login}";
+					}
+					if( $out == '' )
+						$out = "<option value='1'> admin";
+					echo $out;
+					echo "</select>\n";
+				}
+			}
+		}
+	}
+	echo "<br /><input type='submit' value='Delete user and transfer posts' />";
+	echo "</form>";
+}
+
 function wpmu_get_blog_allowedthemes( $blog_id = 0 ) {
 	$themes = get_themes();
 	if( $blog_id == 0 )
diff --git a/wp-admin/wpmu-edit.php b/wp-admin/wpmu-edit.php
index 5895532..234006c 100644
--- a/wp-admin/wpmu-edit.php
+++ b/wp-admin/wpmu-edit.php
@@ -401,13 +401,26 @@ switch( $_GET['action'] ) {
 
 	case "allusers":
 		check_admin_referer('allusers');
+		if ( isset($_POST['alluser_delete']) ) {
+			require_once('admin-header.php');
+			echo '<div class="wrap" style="position:relative;">';
+			confirm_delete_users( $_POST['allusers'] );
+			echo '</div>';
+		} elseif( isset( $_POST[ 'alluser_transfer_delete' ] ) ) {
+			if( is_array( $_POST[ 'blog' ] ) && !empty( $_POST[ 'blog' ] ) ) {
+				foreach( $_POST[ 'blog' ] as $id => $users ) {
+					foreach( $users as $blogid => $user_id ) {
+						$wpdb->query( "UPDATE {$wpdb->base_prefix}{$blogid}_posts SET post_author = '{$user_id}' WHERE post_author = '{$id}'" );
+					}
+					wpmu_delete_user( $id );
+				}
+			}
+			wp_redirect( add_query_arg( array('updated' => 'true', 'action' => 'all_delete'), 'wpmu-users.php' ) );
+		} else {
 		foreach ( (array) $_POST['allusers'] as $key => $val ) {
 			if( $val != '' && $val != '0' && $val != '1' ) {
 				$user_details = get_userdata( $val );
-				if ( isset($_POST['alluser_delete']) ) {
-					wpmu_delete_user($val);
-					$userfunction = 'all_delete';
-				} elseif ( isset($_POST['alluser_spam']) ) {
+				if ( isset($_POST['alluser_spam']) ) {
 					$userfunction = 'all_spam';
 					$blogs = get_blogs_of_user( $val, true );
 					foreach ( (array) $blogs as $key => $details ) {
@@ -427,6 +440,7 @@ switch( $_GET['action'] ) {
 			}
 		}
 		wp_redirect( add_query_arg( array('updated' => 'true', 'action' => $userfunction), $_SERVER['HTTP_REFERER'] ) );
+		}
 		exit();
 	break;