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<?php |
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/** |
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* Donor-User Linking |
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* |
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* Links WordPress users to donor records on login. |
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* |
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* @package SureDonation |
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*/ |
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|
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namespace SureDonation\Inc; |
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|
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use SureDonation\Inc\Database\Tables\Donors; |
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use SureDonation\Inc\Traits\Get_Instance; |
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|
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* Donor_User_Link class. |
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* |
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* @since 1.0.0 |
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*/ |
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class Donor_User_Link { |
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use Get_Instance; |
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|
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/** |
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* Constructor. |
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* |
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* @since 1.0.0 |
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*/ |
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private function __construct() { |
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add_action( 'wp_login', [ $this, 'link_donor_on_login' ], 10, 2 ); |
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} |
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|
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/** |
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* Link donor record to WP user on login. |
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* |
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* If the logged-in user's email matches a donor without a user_id, |
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* link them automatically. |
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* |
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* @param string $user_login Username. |
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* @param \WP_User $user WP_User object. |
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* @return void |
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* @since 1.0.0 |
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*/ |
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public function link_donor_on_login( $user_login, $user ) { |
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unset( $user_login ); |
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|
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if ( ! $user instanceof \WP_User || empty( $user->user_email ) ) { |
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return; |
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} |
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|
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$donor = Donors::get_by_email( $user->user_email ); |
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|
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if ( ! $donor || empty( $donor['id'] ) ) { |
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return; |
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} |
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|
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$donor_id = is_numeric( $donor['id'] ) ? (int) $donor['id'] : 0; |
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if ( $donor_id <= 0 ) { |
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return; |
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} |
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|
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// Already linked to this user. |
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$existing_user_id = isset( $donor['user_id'] ) && is_numeric( $donor['user_id'] ) ? (int) $donor['user_id'] : 0; |
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if ( $existing_user_id === $user->ID ) { |
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return; |
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} |
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|
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// Link the donor to this WP user (only if not linked to a different user). |
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// Direct $wpdb->update so the WHERE clause can carry the |
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// "still unlinked" condition atomically. A read-then-write via |
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// Donors::update() would race against another concurrent login |
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// that shares this email (email-change flows, shared-mailbox |
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// households) and could silently overwrite a link the other |
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// request just established. |
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if ( $existing_user_id <= 0 ) { |
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global $wpdb; |
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$donors_table = $wpdb->prefix . 'suredonation_donors'; |
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// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- Atomic conditional update; the abstraction layer doesn't support multi-column WHERE. |
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$wpdb->update( |
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$donors_table, |
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[ |
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'user_id' => $user->ID, |
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'updated_at' => current_time( 'mysql' ), |
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], |
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[ |
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'id' => $donor_id, |
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'user_id' => 0, |
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], |
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[ '%d', '%s' ], |
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[ '%d', '%d' ] |
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); |
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} |
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} |
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} |
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|
