TEC > Set a target for the event title

event-title-target.php

<?php
/**
 * Set a target for the event title.
 * The code adds a custom field for events where you can select the link target.
 * A template override for each calendar view is needed where you want this implemented.
 *
 * Usage: Add the snippet to your functions.php file or with a plugin like Code Snippets
 *
 * @author: Andras Guseo
 *
 * Plugins required: The Events Calendar
 * Created: February 6, 2024
 */

// Add custom field to the post editor screen
function add_custom_field_metabox() {
	add_meta_box(
		'event_title_target_metabox',
		'Target',
		'render_event_title_target_metabox',
		'tribe_events',
		'normal',
		'default'
	);
}

// Render the custom field metabox
function render_event_title_target_metabox( $post ) {
	// Retrieve the current value of the custom field
	$selected_value = get_post_meta( $post->ID, '_event_title_target', true );

	// Define your dropdown options
	$dropdown_options = [
		'_parent',
		'_blank',
		'_self',
		'_top',
	];

	// Output the dropdown HTML
	echo '<label for="event_title_target">Select an option:</label>';
	echo '<select name="event_title_target" id="event_title_target">';
	echo '<option value="">Select target</option>';

	foreach ( $dropdown_options as $option ) {
		echo '<option value="' . esc_attr( $option ) . '" ' . selected( $selected_value, $option, false ) . '>' . esc_html( $option ) . '</option>';
	}

	echo '</select>';
}

// Save the custom field value when the post is saved
function save_custom_field_value( $post_id ) {
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}

	if ( isset( $_POST[ 'event_title_target' ] ) ) {
		update_post_meta( $post_id, '_event_title_target', sanitize_text_field( $_POST[ 'event_title_target' ] ) );
	}
}

// Hook into WordPress
add_action( 'add_meta_boxes', 'add_custom_field_metabox' );
add_action( 'save_post', 'save_custom_field_value' );