53 lines
1.7 KiB
PHP
53 lines
1.7 KiB
PHP
<?php
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class S2_Uninstall {
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public function uninstall() {
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global $wp_version, $wpmu_version;
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// Is Subscribe2 free active
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if ( is_plugin_active( 'subscribe2/subscribe2.php' ) ) {
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return;
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}
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// Is this WordPressMU or not?
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if ( isset( $wpmu_version ) || strpos( $wp_version, 'wordpress-mu' ) ) {
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$s2_mu = true;
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}
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if ( function_exists( 'is_multisite' ) && is_multisite() ) {
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$s2_mu = true;
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}
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if ( isset( $s2_mu ) && true === $s2_mu ) {
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global $wpdb;
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$blogs = $wpdb->get_col( "SELECT blog_id FROM {$wpdb->blogs}" );
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foreach ( $blogs as $blog ) {
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switch_to_blog( $blog );
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$this->clean_database();
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restore_current_blog();
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}
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} else {
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$this->clean_database();
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}
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}
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private function clean_database() {
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global $wpdb;
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// delete entry from wp_options table
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delete_option( 'subscribe2_options' );
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// delete legacy entry from wp-options table
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delete_option( 's2_future_posts' );
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// remove and scheduled events
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wp_clear_scheduled_hook( 's2_digest_cron' );
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// delete usermeta data for registered users
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// use LIKE and % wildcard as meta_key names are prepended on WPMU
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// and s2_cat is appended with category ID integer
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$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_cat%'" );
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$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_subscribed'" );
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$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_format'" );
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$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_autosub'" );
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// delete any postmeta data that supressed notifications
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$wpdb->query( "DELETE from $wpdb->postmeta WHERE meta_key = 's2mail'" );
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// drop the subscribe2 table
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$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}subscribe2" );
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}
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}
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