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Cache user lookups made by nicename. Add get_user_by(). fixes #4170

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git-svn-id: http://svn.automattic.com/wordpress/trunk@10992 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan
2009-04-17 21:25:11 +00:00
parent bc7bcfbd79
commit 4956e5d453
4 changed files with 51 additions and 38 deletions
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84
wp-includes/pluggable.php
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@@ -139,6 +139,50 @@ function get_userdata( $user_id ) {
}
endif;
/**
* Retrieve user info by a given field
*
* @since 2.8.0
*
* @param string $field The field to retrieve the user with. id | slug | email | login
* @param int|string $value A value for $field. A user ID, slug, email address, or login name.
* @return bool|object False on failure, User DB row object
*/
function get_user_by($field, $value) {
global $wpdb;
switch ($field) {
case 'id':
return get_userdata($value);
break;
case 'slug':
$user_id = wp_cache_get($value, 'userslugs');
$field = 'user_nicename';
break;
case 'email':
$user_id = wp_cache_get($value, 'useremail');
$field = 'user_email';
break;
case 'login':
$value = sanitize_user( $value );
$user_id = wp_cache_get($value, 'userlogins');
$field = 'user_login';
break;
default:
return false;
}
if ( false !== $user_id )
return get_userdata($user_id);
if ( !$user = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->users WHERE $field = %s", $value) ) )
return false;
_fill_user($user);
return $user;
}
if ( !function_exists('get_userdatabylogin') ) :
/**
* Retrieve user info by login name.
@@ -149,27 +193,7 @@ if ( !function_exists('get_userdatabylogin') ) :
* @return bool|object False on failure, User DB row object
*/
function get_userdatabylogin($user_login) {
global $wpdb;
$user_login = sanitize_user( $user_login );
if ( empty( $user_login ) )
return false;
$user_id = wp_cache_get($user_login, 'userlogins');
$user = false;
if ( false !== $user_id )
$user = wp_cache_get($user_id, 'users');
if ( false !== $user )
return $user;
if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_login = %s", $user_login)) )
return false;
_fill_user($user);
return $user;
return get_user_by('login', $user_login);
}
endif;
@@ -183,23 +207,7 @@ if ( !function_exists('get_user_by_email') ) :
* @return bool|object False on failure, User DB row object
*/
function get_user_by_email($email) {
global $wpdb;
$user_id = wp_cache_get($email, 'useremail');
$user = false;
if ( false !== $user_id )
$user = wp_cache_get($user_id, 'users');
if ( false !== $user )
return $user;
if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_email = %s", $email)) )
return false;
_fill_user($user);
return $user;
return get_user_by('email', $email);
}
endif;