Home › Forums › General Issues › get previous and next post link in post objects › Reply To: get previous and next post link in post objects
Yes, i already revised the code and this works:
function post_object_navigation_shortcode() {
global $post;
// get the post/page id where post object field is added.
$course_id = get_field( 'lesson_of_course' );
// get current post id, this can be also a post object.
$current_post_link_id = get_the_ID();
// get all the post_link sub field values.
$post_objects = array();
if ( have_rows( 'lesson_listing', $course_id ) ) :
while ( have_rows( 'lesson_listing', $course_id ) ) :
the_row();
// check for rows (sub repeater)
if ( have_rows( 'section_repeater', $course_id ) ) :
while ( have_rows( 'section_repeater', $course_id ) ) :
the_row();
$my_field = get_sub_field( 'post_link' );
if ( ! empty( $my_field ) ) {
$post_objects[] = $my_field;
}
endwhile;
endif;
endwhile;
endif;
// get the current index of the current post object
$current_index = array_search( $current_post_link_id, array_column( $post_objects, 'ID' ) );
// output the previous post object title and link
if ( $current_index > 0 ) {
$previous_post = $post_objects[ $current_index - 1 ];
$post = get_post( $previous_post );
setup_postdata( $post );
$title = get_the_title();
$link = get_the_permalink();
echo '<a href="' . esc_url( $link ) . '">' . esc_html( $title ) . '</a>';
}
// output the next post object title and link
if ( $current_index < count( $post_objects ) - 1 ) {
$next_post = $post_objects[ $current_index + 1 ];
$post = get_post( $next_post );
setup_postdata( $post );
$title = get_the_title();
$link = get_the_permalink();
echo '<a href="' . esc_url( $link ) . '">' . esc_html( $title ) . '</a>';
}
wp_reset_postdata();
}
add_shortcode( 'lesson_navigation', 'post_object_navigation_shortcode' );
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