NEW UPDATE: JetEngine Listing Grid: Custom Post Types, Drag-and-Drop Functionality on the Backend Dynamicly

gistfile1.txt

Youtube Tutorials:
https://www.youtube.com/watch?v=-wezi647qos&ab_channel=HeskeAgencydev

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// Add Dashboard Widget for Custom Post Types
add_action('wp_dashboard_setup', 'custom_cpt_dashboard_widget');
function custom_cpt_dashboard_widget() {
    wp_add_dashboard_widget('custom_cpt_dashboard_widget', 'Manage Custom Post Types', 'custom_cpt_dashboard_widget_display');
}

// Display Dashboard Widget Form
function custom_cpt_dashboard_widget_display() {
    $cpt_data = get_option('custom_cpt_data', []);

    // Handle form submission for adding/editing CPTs
    if (isset($_POST['submit_cpt']) && check_admin_referer('cpt_nonce')) {
        $index = isset($_POST['index']) ? intval($_POST['index']) : -1;
        $title = sanitize_text_field($_POST['cpt_title']);
        $name = sanitize_text_field($_POST['cpt_name']);

        $cpt_info = ['title' => $title, 'name' => $name];

        if ($index >= 0 && isset($cpt_data[$index])) {
            $cpt_data[$index] = $cpt_info;
        } else {
            array_unshift($cpt_data, $cpt_info);
        }

        update_option('custom_cpt_data', $cpt_data);
    }

    // Handle remove requests
    if (isset($_POST['remove_cpt']) && check_admin_referer('cpt_nonce')) {
        $index = isset($_POST['index']) ? intval($_POST['index']) : -1;
        if ($index >= 0 && isset($cpt_data[$index])) {
            array_splice($cpt_data, $index, 1);
            update_option('custom_cpt_data', $cpt_data);
        }
    }

    // Display form for adding a new CPT or editing an existing one
    $edit_index = -1;
    if (isset($_POST['edit_cpt'])) {
        $edit_index = isset($_POST['index']) ? intval($_POST['index']) : -1;
    }

    $current_title = $edit_index >= 0 ? $cpt_data[$edit_index]['title'] : '';
    $current_name = $edit_index >= 0 ? $cpt_data[$edit_index]['name'] : '';
    custom_cpt_form($current_title, $current_name, $edit_index);

    // Display existing CPTs
    echo '<h4>Existing Custom Post Types:</h4>';
    echo '<ul style="list-style: none; padding: 0;">';
    foreach ($cpt_data as $index => $cpt) {
        echo '<li style="margin-bottom: 10px; padding: 10px; border: 1px solid #ddd; border-radius: 6px;">';
        echo 'Title: ' . esc_html($cpt['title']) . ', Name: ' . esc_html($cpt['name']) . '<br>';
        echo '<form method="post" style="display:inline; margin-left: 0px;"><input type="hidden" name="index" value="' . esc_attr($index) . '">';
        echo '<input type="submit" name="edit_cpt" value="Edit" style="margin-right: 5px; background-color: #0073aa; color: white; border: none; border-radius: 6px; padding: 5px 10px; margin-top: 10px;">';
        echo '<input type="submit" name="remove_cpt" value="Remove" style="background-color: #dc3232; color: white; border: none; border-radius: 6px; padding: 5px 10px; margin-top: 10px;">';
        wp_nonce_field('cpt_nonce');
        echo '</form>';
        echo '</li>';
    }
    echo '</ul>';
}

// Form for adding/editing a CPT
function custom_cpt_form($title = '', $name = '', $index = -1) {
    ?>
    <form action="" method="post" style="margin-bottom: 20px;">
        <input type="hidden" name="index" value="<?php echo esc_attr($index); ?>">
        <p>
            <label for="cpt_title">Title:</label>
            <input type="text" id="cpt_title" name="cpt_title" value="<?php echo esc_attr($title); ?>" style="width: 100%; padding: 5px; border-radius: 6px; border: 1px solid #ddd;">
        </p>
        <p>
            <label for="cpt_name">Name (slug):</label>
            <input type="text" id="cpt_name" name="cpt_name" value="<?php echo esc_attr($name); ?>" style="width: 100%; padding: 5px; border-radius: 6px; border: 1px solid #ddd;">
        </p>
        <?php wp_nonce_field('cpt_nonce'); ?>
        <input type="submit" name="submit_cpt" value="<?php echo $index >= 0 ? 'Save Changes' : 'Add CPT'; ?>" style="background-color: #0073aa; color: white; border: none; border-radius: 6px; padding: 5px 10px;">
    </form>
    <?php
}

// Register CPTs dynamically based on saved option
add_action('init', 'register_custom_cpts');
function register_custom_cpts() {
    $cpt_data = get_option('custom_cpt_data', []);
    foreach ($cpt_data as $cpt) {
        register_post_type($cpt['name'], array(
            'labels' => array('name' => $cpt['title']),
            'public' => true,
            // ... other arguments for register_post_type()
        ));
    }
}

// Enqueue scripts and styles for the dynamically registered CPTs
add_action('admin_enqueue_scripts', 'enqueue_cpt_sortable_script_and_style');
function enqueue_cpt_sortable_script_and_style($hook) {
    global $typenow;
    $cpt_data = get_option('custom_cpt_data', []);
    $cpt_names = array_column($cpt_data, 'name');

    if (in_array($typenow, $cpt_names)) {
        wp_enqueue_script('jquery-ui-sortable');
        wp_localize_script('jquery-ui-sortable', 'cpt_sortable', array(
            'nonce' => wp_create_nonce('cpt_sortable_nonce')
        ));
        echo '<style>#the-list tr td {cursor: move;} .column-numbering {width: 50px;}</style>';
    }
}

// Add a new column for numbering dynamically registered CPTs
add_filter('manage_posts_columns', 'add_cpt_numbering_column');
function add_cpt_numbering_column($columns) {
    global $typenow;
    $cpt_data = get_option('custom_cpt_data', []);
    $cpt_names = array_column($cpt_data, 'name');

    if (in_array($typenow, $cpt_names)) {
        $num_columns = array_slice($columns, 0, 1, true) + ['numbering' => 'No.'] + array_slice($columns, 1, NULL, true);
        return $num_columns;
    }

    return $columns;
}

// Populate the new column for dynamically registered CPTs
add_action('manage_posts_custom_column', 'populate_cpt_numbering_column', 10, 2);
function populate_cpt_numbering_column($column, $post_id) {
    static $row_number = 0;
    if ('numbering' == $column) {
        echo ++$row_number;
    }
}

// Reset row number on each new page/load for dynamically registered CPTs
add_filter('views_edit-post', 'reset_cpt_row_number');
function reset_cpt_row_number($views) {
    global $typenow;
    $cpt_data = get_option('custom_cpt_data', []);
    $cpt_names = array_column($cpt_data, 'name');

    if (in_array($typenow, $cpt_names)) {
        remove_action('manage_posts_custom_column', 'populate_cpt_numbering_column', 10);
        add_action('manage_posts_custom_column', 'populate_cpt_numbering_column', 10, 2);
        add_action('admin_head', 'initialize_row_number');
    }
    return $views;
}

function initialize_row_number() {
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function($) {
            var rowNumber = 1;
            $('#the-list tr').each(function() {
                $(this).find('td.column-numbering').html(rowNumber++);
            });
        });
    </script>
    <?php
}

// Update the JavaScript for drag-and-drop and add renumbering functionality for dynamically registered CPTs
add_action('admin_footer', 'cpt_sortable_and_renumber_script');
function cpt_sortable_and_renumber_script() {
    global $typenow;
    $cpt_data = get_option('custom_cpt_data', []);
    $cpt_names = array_column($cpt_data, 'name');

    if (in_array($typenow, $cpt_names)) {
        ?>
        <script type="text/javascript">
        jQuery(document).ready(function($) {
            var sortList = $('#the-list'); // Get the list
            sortList.sortable({
                update: function(event, ui) {
                    $.ajax({
                        url: ajaxurl,
                        type: 'POST',
                        dataType: 'json',
                        data: {
                            action: 'save_sort_cpt',
                            order: sortList.sortable('toArray').toString(),
                            nonce: cpt_sortable.nonce
                        },
                        success: function() {
                            renumberRows();
                        }
                    });
                },
                stop: function(event, ui) {
                    renumberRows();
                }
            });

            // Function to renumber rows
            function renumberRows() {
                $('#the-list tr').each(function(index) {
                    $(this).find('td.column-numbering').html(index + 1);
                });
            }
        });
        </script>
        <?php
    }
}

// Handle AJAX request to save order for dynamically registered CPTs
add_action('wp_ajax_save_sort_cpt', 'save_sort_cpt');
function save_sort_cpt() {
    // Verify nonce
    if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'cpt_sortable_nonce')) {
        wp_die('Nonce verification failed');
    }

    global $wpdb;

    $order = explode(',', $_POST['order']);
    foreach ($order as $index => $post_id) {
        $post_id = str_replace('post-', '', $post_id); // Sanitize post ID
        $wpdb->update($wpdb->posts, array('menu_order' => $index), array('ID' => $post_id));
    }
    wp_die();
}

// Modify the query on the admin page for dynamically registered CPTs
add_action('pre_get_posts', 'cpt_custom_order');
function cpt_custom_order($query) {
    if (!is_admin() || !$query->is_main_query()) {
        return;
    }

    $cpt_data = get_option('custom_cpt_data', []);
    $cpt_names = array_column($cpt_data, 'name');

    if (in_array($query->get('post_type'), $cpt_names)) {
        $query->set('orderby', 'menu_order');
        $query->set('order', 'ASC');
    }
}

// Modify the front-end query for dynamically registered CPTs
add_action('pre_get_posts', 'modify_cpt_query_on_front_end');
function modify_cpt_query_on_front_end($query) {
    if (!is_admin() && $query->is_main_query()) {
        $cpt_data = get_option('custom_cpt_data', []);
        $cpt_names = array_column($cpt_data, 'name');

        if (is_post_type_archive($cpt_names)) {
            $query->set('orderby', 'menu_order');
            $query->set('order', 'ASC');
        }
    }
}