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Multisite: Improve `get_blog_details()` by using `get_site_by()`. 

`get_site_by()` is now the preferred way to retrieve a site object by lookup for identifying data. By using a coherent structure and `get_sites()` internally, it has several advantages over the direct database queries and complex code in `get_blog_details()`. Therefore `get_blog_details()` is now a wrapper for `get_site_by()`, providing backward compatibility fixes where necessary.

Unit tests have been adjusted to account for the `blog-details` and `blog-lookup` cache groups, which are no longer needed.

Props spacedmonkey, jeremyfelt, flixos90.
Fixes #40228.

Built from https://develop.svn.wordpress.org/trunk@41719


git-svn-id: http://core.svn.wordpress.org/trunk@41553 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Felix Arntz 2017-10-03 19:40:46 +00:00
parent f821106df8
commit 29e5ad5528
3 changed files with 38 additions and 124 deletions
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9
wp-includes/class-wp-site.php
View File

@ -330,7 +330,14 @@ final class WP_Site {
wp_cache_set( $this->blog_id, $details, 'site-details' );
}
/** This filter is documented in wp-includes/ms-blogs.php */
/**
* Filters a blog's details.
*
* @since MU (3.0.0)
* @deprecated 4.7.0 Use site_details
*
* @param object $details The blog details.
*/
$details = apply_filters_deprecated( 'blog_details', array( $details ), '4.7.0', 'site_details' );
/**

151
wp-includes/ms-blogs.php
View File

@ -108,8 +108,7 @@ function get_id_from_blogname( $slug ) {
* Retrieve the details for a blog from the blogs table and blog options.
*
* @since MU (3.0.0)
*
* @global wpdb $wpdb WordPress database abstraction object.
* @since 4.9.0 Use get_site_by() internally.
*
* @param int|string|array $fields Optional. A blog ID, a blog slug, or an array of fields to query against.
* If not specified the current blog ID is used.
@ -118,138 +117,46 @@ function get_id_from_blogname( $slug ) {
* @return WP_Site|false Blog details on success. False on failure.
*/
function get_blog_details( $fields = null, $get_all = true ) {
global $wpdb;
if ( is_array($fields ) ) {
if ( isset($fields['blog_id']) ) {
$blog_id = $fields['blog_id'];
} elseif ( isset($fields['domain']) && isset($fields['path']) ) {
$key = md5( $fields['domain'] . $fields['path'] );
$blog = wp_cache_get($key, 'blog-lookup');
if ( false !== $blog )
return $blog;
if ( substr( $fields['domain'], 0, 4 ) == 'www.' ) {
$nowww = substr( $fields['domain'], 4 );
$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) AND path = %s ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'], $fields['path'] ) );
} else {
$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $fields['domain'], $fields['path'] ) );
}
if ( $blog ) {
wp_cache_set($blog->blog_id . 'short', $blog, 'blog-details');
$blog_id = $blog->blog_id;
} else {
return false;
}
} elseif ( isset($fields['domain']) && is_subdomain_install() ) {
$key = md5( $fields['domain'] );
$blog = wp_cache_get($key, 'blog-lookup');
if ( false !== $blog )
return $blog;
if ( substr( $fields['domain'], 0, 4 ) == 'www.' ) {
$nowww = substr( $fields['domain'], 4 );
$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'] ) );
} else {
$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $fields['domain'] ) );
}
if ( $blog ) {
wp_cache_set($blog->blog_id . 'short', $blog, 'blog-details');
$blog_id = $blog->blog_id;
} else {
return false;
}
if ( is_array( $fields ) ) {
if ( isset( $fields['blog_id'] ) ) {
$field = 'id';
$value = (int) $fields['blog_id'];
} elseif ( isset( $fields['domain'] ) && isset( $fields['path'] ) ) {
$field = 'url';
$value = $fields['domain'] . '/' . ltrim( $fields['path'], '/' );
} elseif ( isset( $fields['domain'] ) && is_subdomain_install() ) {
$field = 'domain';
$value = $fields['domain'];
} else {
return false;
}
} else {
if ( ! $fields )
$blog_id = get_current_blog_id();
elseif ( ! is_numeric( $fields ) )
$blog_id = get_id_from_blogname( $fields );
else
$blog_id = $fields;
}
$blog_id = (int) $blog_id;
$all = $get_all == true ? '' : 'short';
$details = wp_cache_get( $blog_id . $all, 'blog-details' );
if ( $details ) {
if ( ! is_object( $details ) ) {
if ( $details == -1 ) {
return false;
} else {
// Clear old pre-serialized objects. Cache clients do better with that.
wp_cache_delete( $blog_id . $all, 'blog-details' );
unset($details);
}
if ( ! $fields ) {
$field = 'id';
$value = get_current_blog_id();
} elseif ( ! is_numeric( $fields ) ) {
$field = 'slug';
$value = $fields;
} else {
return $details;
$field = 'id';
$value = (int) $fields;
}
}
// Try the other cache.
$site = get_site_by( $field, $value );
if ( ! $site ) {
return false;
}
if ( $get_all ) {
$details = wp_cache_get( $blog_id . 'short', 'blog-details' );
} else {
$details = wp_cache_get( $blog_id, 'blog-details' );
// If short was requested and full cache is set, we can return.
if ( $details ) {
if ( ! is_object( $details ) ) {
if ( $details == -1 ) {
return false;
} else {
// Clear old pre-serialized objects. Cache clients do better with that.
wp_cache_delete( $blog_id, 'blog-details' );
unset($details);
}
} else {
return $details;
}
// Prepopulate magic properties for backward compatibility.
foreach ( array( 'blogname', 'siteurl', 'post_count', 'home' ) as $detail ) {
$site->$detail = $site->$detail;
}
}
if ( empty($details) ) {
$details = WP_Site::get_instance( $blog_id );
if ( ! $details ) {
// Set the full cache.
wp_cache_set( $blog_id, -1, 'blog-details' );
return false;
}
}
if ( ! $details instanceof WP_Site ) {
$details = new WP_Site( $details );
}
if ( ! $get_all ) {
wp_cache_set( $blog_id . $all, $details, 'blog-details' );
return $details;
}
switch_to_blog( $blog_id );
$details->blogname = get_option( 'blogname' );
$details->siteurl = get_option( 'siteurl' );
$details->post_count = get_option( 'post_count' );
$details->home = get_option( 'home' );
restore_current_blog();
/**
* Filters a blog's details.
*
* @since MU (3.0.0)
* @deprecated 4.7.0 Use site_details
*
* @param object $details The blog details.
*/
$details = apply_filters_deprecated( 'blog_details', array( $details ), '4.7.0', 'site_details' );
wp_cache_set( $blog_id . $all, $details, 'blog-details' );
$key = md5( $details->domain . $details->path );
wp_cache_set( $key, $details, 'blog-lookup' );
return $details;
return $site;
}
/**

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.9-alpha-41718';
$wp_version = '4.9-alpha-41719';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.