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Introduce get_main_network_id() 

Expand on the logic previously available as part of `is_main_network()` and provide a way to obtain the ID of the main network. Most useful in multi-network configurations.

Props @johnjamesjacoby for the initial patch.
Fixes #30294.


git-svn-id: https://develop.svn.wordpress.org/trunk@32775 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jeremy Felt 2015-06-14 21:44:45 +00:00
parent 97e6967d63
commit 7819ac5d16
2 changed files with 101 additions and 17 deletions
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57
src/wp-includes/functions.php
View File

@ -3873,38 +3873,63 @@ function is_main_site( $site_id = null ) {
*
* @since 3.7.0
*
* @global wpdb $wpdb
*
* @param int $network_id Optional. Network ID to test. Defaults to current network.
* @return bool True if $network_id is the main network, or if not running Multisite.
*/
function is_main_network( $network_id = null ) {
global $wpdb;
if ( ! is_multisite() )
if ( ! is_multisite() ) {
return true;
}
$current_network_id = (int) get_current_site()->id;
if ( ! $network_id )
if ( null === $network_id ) {
$network_id = $current_network_id;
}
$network_id = (int) $network_id;
if ( defined( 'PRIMARY_NETWORK_ID' ) )
return $network_id === (int) PRIMARY_NETWORK_ID;
return ( $network_id === get_main_network_id() );
}
if ( 1 === $current_network_id )
return $network_id === $current_network_id;
/**
* Get the main network ID.
*
* @since 4.3.0
*
* @global wpdb $wpdb
*
* @return int The ID of the main network.
*/
function get_main_network_id() {
global $wpdb;
$primary_network_id = (int) wp_cache_get( 'primary_network_id', 'site-options' );
if ( ! is_multisite() ) {
return 1;
}
if ( $primary_network_id )
return $network_id === $primary_network_id;
if ( defined( 'PRIMARY_NETWORK_ID' ) ) {
$main_network_id = PRIMARY_NETWORK_ID;
} elseif ( 1 === (int) get_current_site()->id ) {
// If the current network has an ID of 1, assume it is the main network.
$main_network_id = 1;
} else {
$main_network_id = wp_cache_get( 'primary_network_id', 'site-options' );
$primary_network_id = (int) $wpdb->get_var( "SELECT id FROM $wpdb->site ORDER BY id LIMIT 1" );
wp_cache_add( 'primary_network_id', $primary_network_id, 'site-options' );
if ( false === $main_network_id ) {
$main_network_id = (int) $wpdb->get_var( "SELECT id FROM {$wpdb->site} ORDER BY id LIMIT 1" );
wp_cache_add( 'primary_network_id', $main_network_id, 'site-options' );
}
}
return $network_id === $primary_network_id;
/**
* Filter the main network ID.
*
* @since 4.3.0
*
* @param int $main_network_id The ID of the main network.
*/
return (int) apply_filters( 'get_main_network_id', $main_network_id );
}
/**

61
tests/phpunit/tests/multisite/network.php
View File

@ -21,11 +21,70 @@ class Tests_Multisite_Network extends WP_UnitTestCase {
}
function tearDown() {
global $wpdb;
global $wpdb, $current_site;
$wpdb->suppress_errors( $this->suppress );
$current_site->id = 1;
parent::tearDown();
}
/**
* By default, only one network exists and has a network ID of 1.
*/
function test_get_main_network_id_default() {
$this->assertEquals( 1, get_main_network_id() );
}
/**
* If a second network is created, network ID 1 should still be returned
* as the main network ID.
*/
function test_get_main_network_id_two_networks() {
$this->factory->network->create();
$this->assertEquals( 1, get_main_network_id() );
}
/**
* When the `$current_site` global is populated with another network, the
* main network should still return as 1.
*/
function test_get_main_network_id_after_network_switch() {
global $current_site;
$id = $this->factory->network->create();
$current_site->id = (int) $id;
$this->assertEquals( 1, get_main_network_id() );
}
/**
* When the first network is removed, the next should return as the main
* network ID.
*
* @todo In the future, we'll have a smarter way of deleting a network. For now,
* fake the process with UPDATE queries.
*/
function test_get_main_network_id_after_network_delete() {
global $wpdb, $current_site;
$id = $this->factory->network->create();
$current_site->id = (int) $id;
$wpdb->query( "UPDATE {$wpdb->site} SET id=100 WHERE id=1" );
$this->assertEquals( $id, get_main_network_id() );
$wpdb->query( "UPDATE {$wpdb->site} SET id=1 WHERE id=100" );
}
function test_get_main_network_id_filtered() {
add_filter( 'get_main_network_id', array( $this, '_get_main_network_id' ) );
$this->assertEquals( 3, get_main_network_id() );
remove_filter( 'get_main_network_id', array( $this, '_get_main_network_id' ) );
}
function _get_main_network_id() {
return 3;
}
/**
* @ticket 22917
*/