9da702e746
Major theme extension adding full-featured navigation with dropdown submenus (Tools, My Data, Resources), 9 new page templates (Calculator, Protocol Builder, Tracker, Subject Log, Documentation, Directory, Science Feed, Profile, Sign In/Register), documentation page with sidebar ToC and scroll spy, branded AJAX authentication forms, newsletter signup with admin export, slide-out contact/support panel, Research Modules 6-card grid on front page, and comprehensive footer update. Split functions.php (554→206 lines) into 6 focused inc/ modules: helpers, customizer, auth-handlers, contact-handler, page-setup, newsletter-admin. All new components include dark mode support, CSRF protection, input sanitization, output escaping, and graceful plugin degradation via shortcode_exists(). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
130 lines
3.5 KiB
PHP
130 lines
3.5 KiB
PHP
<?php
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/**
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* Newsletter Admin Page
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*
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* Simple admin interface to view and export collected newsletter emails.
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* Emails are stored in wp_options as 'ps_newsletter_emails' until a
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* proper mailing service (Mailchimp, etc.) is integrated.
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*
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* @see functions.php — newsletter signup handler (stores emails)
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* @see template-parts/newsletter-signup.php — frontend form
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*
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* What: Admin page under Tools for viewing/exporting subscriber emails.
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* Who calls it: WordPress admin_menu action.
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* Dependencies: None — reads from wp_options.
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*
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* @package peptide-starter
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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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* Register the newsletter admin page under Tools.
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*
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* @return void
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*/
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function peptide_starter_newsletter_admin_menu() {
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add_management_page(
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__( 'Newsletter Subscribers', 'peptide-starter' ),
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__( 'Newsletter', 'peptide-starter' ),
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'manage_options',
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'ps-newsletter',
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'peptide_starter_newsletter_admin_page'
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);
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}
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add_action( 'admin_menu', 'peptide_starter_newsletter_admin_menu' );
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/**
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* Render the newsletter admin page.
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*
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* Displays a simple table of subscriber emails with date added.
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* Includes a CSV export button.
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*
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* @return void
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*/
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function peptide_starter_newsletter_admin_page() {
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$emails = get_option( 'ps_newsletter_emails', array() );
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?>
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<div class="wrap">
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<h1><?php esc_html_e( 'Newsletter Subscribers', 'peptide-starter' ); ?></h1>
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<p>
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<?php
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echo esc_html(
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sprintf(
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/* translators: %d: number of subscribers */
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_n( '%d subscriber', '%d subscribers', count( $emails ), 'peptide-starter' ),
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count( $emails )
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)
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);
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?>
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</p>
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<?php if ( ! empty( $emails ) ) : ?>
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<form method="post">
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<?php wp_nonce_field( 'ps_newsletter_export', 'ps_export_nonce' ); ?>
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<input type="hidden" name="ps_action" value="export_csv">
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<?php submit_button( __( 'Export CSV', 'peptide-starter' ), 'secondary', 'export', false ); ?>
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</form>
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<table class="widefat striped" style="margin-top: 16px;">
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<thead>
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<tr>
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<th><?php esc_html_e( 'Email', 'peptide-starter' ); ?></th>
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<th><?php esc_html_e( 'Date Added', 'peptide-starter' ); ?></th>
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</tr>
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</thead>
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<tbody>
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<?php foreach ( $emails as $entry ) : ?>
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<tr>
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<td><?php echo esc_html( $entry['email'] ); ?></td>
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<td><?php echo esc_html( $entry['date'] ); ?></td>
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</tr>
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<?php endforeach; ?>
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</tbody>
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</table>
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<?php else : ?>
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<p><?php esc_html_e( 'No subscribers yet.', 'peptide-starter' ); ?></p>
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<?php endif; ?>
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</div>
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<?php
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}
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/**
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* Handle CSV export of newsletter subscribers.
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*
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* @return void
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*/
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function peptide_starter_newsletter_export_csv() {
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if ( ! isset( $_POST['ps_action'] ) || 'export_csv' !== $_POST['ps_action'] ) {
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return;
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}
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if ( ! current_user_can( 'manage_options' ) ) {
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return;
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}
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if ( ! isset( $_POST['ps_export_nonce'] ) ||
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! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['ps_export_nonce'] ) ), 'ps_newsletter_export' ) ) {
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return;
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}
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$emails = get_option( 'ps_newsletter_emails', array() );
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header( 'Content-Type: text/csv; charset=utf-8' );
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header( 'Content-Disposition: attachment; filename=newsletter-subscribers-' . gmdate( 'Y-m-d' ) . '.csv' );
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$output = fopen( 'php://output', 'w' );
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fputcsv( $output, array( 'Email', 'Date Added' ) );
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foreach ( $emails as $entry ) {
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fputcsv( $output, array( $entry['email'], $entry['date'] ) );
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}
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fclose( $output );
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exit;
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}
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add_action( 'admin_init', 'peptide_starter_newsletter_export_csv' );
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