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fix the issue - options are not deleting in multisite network
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@faisal-alvi
faisal-alvi committed Sep 5, 2024
1 parent ef103dd commit 7826ef2
Showing 1 changed file with 77 additions and 66 deletions.
143 changes: 77 additions & 66 deletions uninstall.php
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Original file line number Diff line number Diff line change
Expand Up @@ -21,11 +21,9 @@
global $wpdb;

/**
* Function to delete all relevant data from the site (single or multisite).
*
* @param bool $is_multisite Whether it's a multisite installation.
* Function to delete all relevant data from the site.
*/
function dt_delete_data( $is_multisite = false ) {
function dt_delete_data() {
global $wpdb;

// Delete post meta and posts of type 'dt_subscription'.
Expand All @@ -41,17 +39,15 @@ function dt_delete_data( $is_multisite = false ) {

// Delete subscription meta.
$wpdb->query(
sprintf(
"DELETE FROM $wpdb->postmeta WHERE post_id IN (%s);",
$ids_string
$wpdb->prepare(
"DELETE FROM $wpdb->postmeta WHERE post_id IN ($ids_string)"
)
);

// Delete subscription posts.
$wpdb->query(
sprintf(
"DELETE FROM $wpdb->posts WHERE ID IN (%s);",
$ids_string
$wpdb->prepare(
"DELETE FROM $wpdb->posts WHERE ID IN ($ids_string)"
)
);

Expand All @@ -61,16 +57,14 @@ function dt_delete_data( $is_multisite = false ) {
wp_cache_delete_multiple( $subscription_post_ids, 'post_meta' );
}

// Delete relevant options (single or multisite).
delete_site_options( $is_multisite );
// Delete relevant options from the options table.
delete_site_options();
}

/**
* Delete all relevant options from a site (single or multisite).
*
* @param bool $is_multisite Whether it's a multisite installation.
* Delete all relevant options from the options table.
*/
function delete_site_options( $is_multisite = false ) {
function delete_site_options() {
global $wpdb;

$option_prefixes = array(
Expand All @@ -79,45 +73,18 @@ function delete_site_options( $is_multisite = false ) {
'_transient_timeout_dt_',
);

// Include multisite-specific prefixes if it's not a single site.
// Also determine the appropriate table and column based on multisite or single site.
if ( $is_multisite ) {
$option_prefixes[] = '_site_transient_dt_';
$option_prefixes[] = '_site_transient_timeout_dt_';
$table = $wpdb->sitemeta;
$id_column = 'meta_id';
$key_column = 'meta_key';
$site_column = 'site_id';
$site_id = get_current_network_id();
} else {
$table = $wpdb->options;
$id_column = 'option_id';
$key_column = 'option_name';
}

// Construct the WHERE clause based on the environment.
$where_clause = implode( ' OR ', array_fill( 0, count( $option_prefixes ), "$key_column LIKE %s" ) );

// Prepare the query with proper escaping for both single and multisite.
$query = $is_multisite
? $wpdb->prepare(
sprintf(
"SELECT $id_column FROM $table WHERE $site_column = %%d AND (%s);",
$where_clause
),
array_merge( [ $site_id ], array_map( function( $prefix ) use ( $wpdb ) {
return $wpdb->esc_like( $prefix ) . '%';
}, $option_prefixes ) )
)
: $wpdb->prepare(
sprintf(
"SELECT $id_column FROM $table WHERE %s;",
$where_clause
),
array_map( function( $prefix ) use ( $wpdb ) {
return $wpdb->esc_like( $prefix ) . '%';
}, $option_prefixes )
);
// Prepare the WHERE clause for the options table.
$where_clause = implode( ' OR ', array_fill( 0, count( $option_prefixes ), "option_name LIKE %s" ) );

$query = $wpdb->prepare(
sprintf(
"SELECT option_id FROM $wpdb->options WHERE %s;",
$where_clause
),
array_map( function( $prefix ) use ( $wpdb ) {
return $wpdb->esc_like( $prefix ) . '%';
}, $option_prefixes )
);

// Fetch the options to delete.
$options_to_delete = $wpdb->get_col( $query );
Expand All @@ -127,20 +94,61 @@ function delete_site_options( $is_multisite = false ) {

// Delete the options using the retrieved IDs.
$wpdb->query(
sprintf(
"DELETE FROM $table WHERE $id_column IN (%s);",
$ids_string
$wpdb->prepare(
"DELETE FROM $wpdb->options WHERE option_id IN ($ids_string)"
)
);

// Flush the relevant caches.
$cache_group = $is_multisite ? 'site-options' : 'options';
wp_cache_delete_multiple( $options_to_delete, $cache_group );
// Flush the options cache.
wp_cache_delete_multiple( $options_to_delete, 'options' );

if ( ! $is_multisite ) {
// Flush the alloptions cache if it's a single site.
wp_cache_delete( 'alloptions', 'options' );
}
// Flush the alloptions cache.
wp_cache_delete( 'alloptions', 'options' );
}
}

/**
* Delete all relevant options from the sitemeta table (multisite only).
*/
function delete_sitemeta_options() {
global $wpdb;

$option_prefixes = array(
'dt_',
'_site_transient_dt_',
'_site_transient_timeout_dt_',
);

// Prepare the WHERE clause for the sitemeta table.
$where_clause = implode( ' OR ', array_fill( 0, count( $option_prefixes ), "meta_key LIKE %s" ) );

$site_id = get_current_network_id();

$query = $wpdb->prepare(
sprintf(
"SELECT meta_id FROM $wpdb->sitemeta WHERE site_id = %%d AND (%s);",
$where_clause
),
array_merge( [ $site_id ], array_map( function( $prefix ) use ( $wpdb ) {
return $wpdb->esc_like( $prefix ) . '%';
}, $option_prefixes ) )
);

// Fetch the sitemeta to delete.
$sitemeta_to_delete = $wpdb->get_col( $query );

if ( ! empty( $sitemeta_to_delete ) ) {
$ids_string = implode( ',', array_map( 'intval', $sitemeta_to_delete ) );

// Delete the sitemeta using the retrieved IDs.
$wpdb->query(
$wpdb->prepare(
"DELETE FROM $wpdb->sitemeta WHERE meta_id IN ($ids_string)"
)
);

// Flush the site options cache.
wp_cache_delete_multiple( $sitemeta_to_delete, 'site-options' );
}
}

Expand All @@ -150,9 +158,12 @@ function delete_site_options( $is_multisite = false ) {
$sites = get_sites();
foreach ( $sites as $site ) {
switch_to_blog( $site->blog_id );
dt_delete_data( true );
dt_delete_data();
restore_current_blog();
}

// Delete network-wide sitemeta options.
delete_sitemeta_options();
} else {
// Single site.
dt_delete_data();
Expand Down

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