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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 863 | if ( empty($signup->domain) ) { |
| 864 | $wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) ); |
| 865 | |
| 866 | if ( isset( $user_already_exists ) ) |
| 867 | return new WP_Error( 'user_already_exists', __( 'That username is already activated.' ), $signup); |
| 868 | |
| 869 | wpmu_welcome_user_notification($user_id, $password, $meta); |
| 870 | |
| 871 | add_new_user_to_blog( $user_id, $user_email, $meta ); |
| 872 | do_action('wpmu_activate_user', $user_id, $password, $meta); |
| 873 | return array('user_id' => $user_id, 'password' => $password, 'meta' => $meta); |
| 874 | } |
| 875 | |
| 876 | $blog_id = wpmu_create_blog( $signup->domain, $signup->path, $signup->title, $user_id, $meta, $wpdb->siteid ); |
| 877 | |
| 878 | // TODO: What to do if we create a user but cannot create a blog? |
| 879 | if ( is_wp_error($blog_id) ) { |
| 880 | // If blog is taken, that means a previous attempt to activate this blog failed in between creating the blog and |
| 881 | // setting the activation flag. Let's just set the active flag and instruct the user to reset their password. |