Event Espresso - Choose a Seat Button - actions.php

//Creates a field to select a seat in the seating chart
function espresso_seating_chart_select($event_id, $booking_info=''){
    global $wpdb;
    $seating_chart_id = seating_chart::check_event_has_seating_chart($event_id);
    if ( $seating_chart_id !== false ){
?>
        <div class="event_questions" id="event_seating_chart">


        <p class="event_form_field">
        <label <?php echo is_admin() ? '' : 'style=""'; ?>><?php _e('Select a Seat:', 'event_espresso'); ?></label>
        <a onclick="javascript:document.getElementById('myFocusField').click();" class="helpLink" >Sitzplatz erste Person</a><br>
        <input name="seat_id" id="myFocusField" type="text" class="ee_s_select_seat required" title="<?php _e('Please select a seat.', 'event_espresso'); ?>" value="<?php echo $booking_info ?>" size="30" readonly="readonly" event_id="<?php echo $event_id; ?>"  />
<?php
        $seating_chart = $wpdb->get_row("select * from ".EVENTS_SEATING_CHART_TABLE." where id = $seating_chart_id");
        if (trim($seating_chart->image_name) != "" && file_exists(EVENT_ESPRESSO_UPLOAD_DIR.'seatingchart/images/'.$seating_chart->image_name) ){
?>
            <br/>
            <a href="<?php echo EVENT_ESPRESSO_UPLOAD_URL.'seatingchart/images/'.$seating_chart->image_name; ?>" target="_blank"><?php _e('Seating chart image', 'event_espresso'); ?></a>
<?php
        }
?>
        </p>
        </div>
<?php
    }
}
add_action( 'espresso_seating_chart_select', 'espresso_seating_chart_select', 10, 2 );