wp admin helper

wp-admin.php

<?php 

https://developer.wordpress.org/reference/functions/add_menu_page/
add_menu_page( string $page_title, string $menu_title, string $capability, string $menu_slug, callable $function = '', string $icon_url = '', int $position = null );


/**
 * Reset posts counts only for current users
 */
https://wordpress.stackexchange.com/questions/49154/hide-other-users-posts-in-admin-panel
function fix_count_orders( $counts, $type, $perm ) {
	global $wpdb;

	if ( ! post_type_exists( $type ) ) {
			return new stdClass();
	}

	$query = "SELECT post_status, COUNT( * ) AS num_posts FROM {$wpdb->posts} WHERE post_type = %s";

	$post_type_object = get_post_type_object( $type );

	// adds condition to respect `$perm`. (3)
	if ( $perm === 'readable' && is_user_logged_in() ) {
			if ( ! current_user_can( $post_type_object->cap->read_private_posts ) ) {
					$query .= $wpdb->prepare(
							" AND (post_status != 'private' OR ( post_author = %d AND post_status = 'private' ))",
							get_current_user_id()
					);
			}
	}

	// limits only author's own posts. (6)
	if ( is_admin() && ! current_user_can ( $post_type_object->cap->edit_others_posts ) ) {
			$query .= $wpdb->prepare( ' AND post_author = %d', get_current_user_id() );
	}

	$query .= ' GROUP BY post_status';

	$results = (array) $wpdb->get_results( $wpdb->prepare( $query, $type ), ARRAY_A );
	$counts  = array_fill_keys( get_post_stati(), 0 );

	foreach ( $results as $row ) {
			$counts[ $row['post_status'] ] = $row['num_posts'];
	}

	$counts    = (object) $counts;
	$cache_key = _count_posts_cache_key( $type, 'readable' );

	// caches the result. (2)
	// although this is not so efficient because the cache is almost always deleted.
	wp_cache_set( $cache_key, $counts, 'counts' );

	return $counts;
}

function query_set_only_author( $wp_query ) {
	if ( ! is_admin() ) {
			return;
	}

	$allowed_types = [ 'laundries' ];
	$current_type  = get_query_var( 'post_type', 'laundries' );

	if ( in_array( $current_type, $allowed_types, true ) ) {
			$post_type_object = get_post_type_object( $type );

			if (! current_user_can( $post_type_object->cap->edit_others_posts ) ) {    // (6)
					$wp_query->set( 'author', get_current_user_id() );

					add_filter( 'wp_count_posts', 'fix_count_orders', PHP_INT_MAX, 3 );    // (4)
			}
	}
}

add_action( 'pre_get_posts', 'query_set_only_author', PHP_INT_MAX );    // (4)




// Admin dashboard custom post type filters, admin filters, post type filters, filter posts, filter tags, filter categories
https://generatewp.com/filtering-posts-by-taxonomies-in-the-dashboard/
function filter_cars_by_taxonomies($post_type, $which)
{

  // Apply this only on a specific post type
  if ('partners' !== $post_type)
    return;

  // A list of taxonomy slugs to filter by
  $taxonomies = array( 'seller_locality', 'field_of_activity', 'commercial_centers');

  foreach ($taxonomies as $taxonomy_slug) {

    // Retrieve taxonomy data
    $taxonomy_obj = get_taxonomy($taxonomy_slug);
    $taxonomy_name = $taxonomy_obj->labels->name;

    // Retrieve taxonomy terms
    $terms = get_terms($taxonomy_slug);

    // Display filter HTML
    echo "<select name='{$taxonomy_slug}' id='{$taxonomy_slug}' class='postform'>";
    echo '<option value="">' . sprintf(esc_html__('Show All %s', 'text_domain'), $taxonomy_name) . '</option>';
    foreach ($terms as $term) {
      printf(
          '<option value="%1$s" %2$s>%3$s (%4$s)</option>',
          $term->slug,
          ((isset($_GET[$taxonomy_slug]) && ($_GET[$taxonomy_slug] == $term->slug)) ? ' selected="selected"' : ''),
          $term->name,
          $term->count
      );
    }
    echo '</select>';
  }

}

add_action('restrict_manage_posts', 'filter_cars_by_taxonomies', 10, 2);



/**
 * Disable Fullscreen Gutenberg.
 */
add_action( 'enqueue_block_editor_assets', 'wpdd_disable_editor_fullscreen_by_default' );

function wpdd_disable_editor_fullscreen_by_default() {
	$script = "window.onload = function() { const isFullscreenMode = wp.data.select( 'core/edit-post' ).isFeatureActive( 'fullscreenMode' ); if ( isFullscreenMode ) { wp.data.dispatch( 'core/edit-post' ).toggleFeature( 'fullscreenMode' ); } }";

	wp_add_inline_script( 'wp-blocks', $script );
}


/**
 * Hide editor on specific pages.
 * https://www.daddydesign.com/wordpress/how-to-hide-the-wordpress-content-editor-on-specific-pages/
 */
add_action( 'admin_init', 'hide_editor' );
function hide_editor() {

	// Get the Post ID.
	// de prelucrat cu if (isset($_GET['post'])) {}
 $post_id = $_GET['post'] ? $_GET['post'] : $_POST['post_ID'];
 if( !isset( $post_id ) ) return;

 // Hide the editor on a page with a specific page template
 // Get the name of the Page Template file.
 $template_file = get_post_meta($post_id, '_wp_page_template', true);

 if($template_file == 'templates/contacts.php' || $template_file == 'templates/cariere.php' ){ // the filename of the page template
   remove_post_type_support('page', 'editor');
 }
}