laurence/eventbrite-for-the-events-calendar
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Initial release of Eventbrite for The Events Calendar (v1.0.0)

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Bidirectional sync between Eventbrite and The Events Calendar, with
WooCommerce ticket purchasing that bypasses Eventbrite's processing
fees by registering buyers as free attendees via API. Includes venue/
organizer sync, QR code ticket generation, attendee management with
CSV export, scheduled sync via WP-Cron, and real-time Eventbrite
webhooks.
This commit is contained in:
Laurence Horrocks-Barlow 2026-05-17 08:48:04 +01:00
commit f3bc795d9a
15 changed files with 3132 additions and 0 deletions
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196
includes/class-eb4tec-frontend.php Normal file
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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
final class EB4TEC_Frontend {
public function __construct( private readonly EB4TEC_Ticket_Manager $ticket_manager ) {
add_action( 'tribe_events_single_event_after_the_meta', [ $this, 'after_event_meta' ] );
add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_styles' ] );
}
public function after_event_meta(): void {
$post_id = get_the_ID();
if ( ! $post_id ) {
return;
}
$eb_event_id = (string) get_post_meta( $post_id, '_eb4tec_event_id', true );
$product_id = (int) get_post_meta( $post_id, '_eb4tec_wp_product_id', true );
$eb_url = (string) get_post_meta( $post_id, '_eb4tec_eb_url', true );
// Don't render if there's no Eventbrite link and no WC product.
if ( ! $eb_event_id && ! $product_id ) {
return;
}
// Determine if event has ended.
$end_date = (string) get_post_meta( $post_id, '_EventEndDate', true );
$timezone = (string) get_post_meta( $post_id, '_EventTimezone', true ) ?: wp_timezone_string();
$has_ended = false;
if ( $end_date ) {
try {
$tz_obj = new DateTimeZone( $timezone );
$end_dt = new DateTime( $end_date, $tz_obj );
$now = new DateTime( 'now', $tz_obj );
$has_ended = $now > $end_dt;
} catch ( \Exception ) {
// Keep $has_ended = false.
}
}
echo '<div class="eb4tec-ticket-section">';
if ( $product_id && ! $has_ended ) {
$this->render_capacity_bar( $post_id );
$this->render_buy_button( $post_id, $product_id );
} elseif ( $has_ended ) {
echo '<p class="eb4tec-event-ended">' . esc_html__( 'This event has ended.', 'eb4tec' ) . '</p>';
}
if ( $eb_url ) {
echo '<p class="eb4tec-eb-link"><a href="' . esc_url( $eb_url ) . '" target="_blank" rel="noopener">' .
esc_html__( 'View on Eventbrite', 'eb4tec' ) . ' ↗</a></p>';
}
echo '</div>';
}
private function render_capacity_bar( int $post_id ): void {
$total = (int) get_post_meta( $post_id, '_eb4tec_capacity', true );
$available = $this->ticket_manager->get_available_capacity( $post_id );
if ( $total <= 0 ) {
return;
}
$sold = max( 0, $total - $available );
$percent = (int) round( ( $sold / $total ) * 100 );
echo '<div class="eb4tec-capacity-wrap">';
printf(
'<div class="eb4tec-capacity-bar" role="progressbar" aria-valuenow="%d" aria-valuemin="0" aria-valuemax="%d"><div class="eb4tec-capacity-bar__fill" style="width:%d%%"></div></div>',
$sold,
$total,
$percent
);
if ( $available > 0 ) {
echo '<p class="eb4tec-capacity-label">' . esc_html( sprintf(
/* translators: 1: available spots, 2: total */
_n( '%1$d of %2$d spot remaining', '%1$d of %2$d spots remaining', $available, 'eb4tec' ),
$available,
$total
) ) . '</p>';
} else {
echo '<p class="eb4tec-capacity-label eb4tec-capacity-label--sold-out">' . esc_html__( 'Sold out', 'eb4tec' ) . '</p>';
}
echo '</div>';
}
private function render_buy_button( int $post_id, int $product_id ): void {
$available = $this->ticket_manager->get_available_capacity( $post_id );
$button_html = '';
if ( $available > 0 ) {
$product_url = get_permalink( $product_id );
$button_html = sprintf(
'<a href="%s" class="button eb4tec-buy-button">%s</a>',
esc_url( $product_url ),
esc_html__( 'Buy Tickets', 'eb4tec' )
);
} else {
$button_html = '<span class="eb4tec-sold-out-badge">' . esc_html__( 'Sold Out', 'eb4tec' ) . '</span>';
}
echo apply_filters( 'eb4tec_ticket_button_html', $button_html, $post_id );
}
public function enqueue_styles(): void {
if ( ! is_singular( 'tribe_events' ) ) {
return;
}
wp_register_style( 'eb4tec-frontend', false );
wp_enqueue_style( 'eb4tec-frontend' );
wp_add_inline_style( 'eb4tec-frontend', $this->get_inline_css() );
}
private function get_inline_css(): string {
return '
.eb4tec-ticket-section {
margin: 20px 0;
padding: 16px 0;
border-top: 1px solid #e5e5e5;
}
.eb4tec-capacity-wrap {
margin-bottom: 12px;
}
.eb4tec-capacity-bar {
background: #e5e5e5;
border-radius: 4px;
height: 8px;
overflow: hidden;
max-width: 300px;
}
.eb4tec-capacity-bar__fill {
background: #2271b1;
height: 100%;
transition: width 0.3s ease;
}
.eb4tec-capacity-label {
font-size: 0.875em;
color: #555;
margin: 4px 0 0;
}
.eb4tec-capacity-label--sold-out {
color: #d63638;
font-weight: 600;
}
.eb4tec-buy-button {
display: inline-block;
padding: 10px 20px;
background: #2271b1;
color: #fff !important;
text-decoration: none;
border-radius: 4px;
font-weight: 600;
margin-right: 8px;
}
.eb4tec-buy-button:hover {
background: #135e96;
}
.eb4tec-sold-out-badge {
display: inline-block;
padding: 8px 16px;
background: #d63638;
color: #fff;
border-radius: 4px;
font-weight: 600;
}
.eb4tec-event-ended {
color: #555;
font-style: italic;
}
.eb4tec-eb-link {
margin-top: 8px;
font-size: 0.875em;
}
.eb4tec-ticket-classes {
list-style: none;
padding: 0;
margin: 0 0 12px;
}
.eb4tec-ticket-class {
padding: 6px 0;
border-bottom: 1px solid #f0f0f0;
}
.eb4tec-ticket-sold-out {
color: #d63638;
font-size: 0.85em;
}
';
}
}