Media Filter function (page, download, reports, (all post types))

functions.php

<?php

/* MEDIA LIBRARY FILTER */
add_filter('parse_query', 'node_admin_posts_filter');
add_action('restrict_manage_posts', 'node_admin_posts_filter_restrict_manage_posts');
function node_admin_posts_filter($wp_query)
	{
		if (is_admin() && isset($_GET['page_id']) && $_GET['page_id'] != '')
			{
				$original_query = $wp_query;
				$wp_query->set('post_parent', $_GET['page_id']);
				$wp_query = $original_query;
				wp_reset_postdata();
			}
		else if (is_admin() && isset($_GET['download_id']) && $_GET['download_id'] != '')
			{
				$original_query = $wp_query;
				$wp_query->set('post_parent', $_GET['download_id']);
				$wp_query = $original_query;
				wp_reset_postdata();
			}
		else if (is_admin() && isset($_GET['report_id']) && $_GET['report_id'] != '')
			{
				$original_query = $wp_query;
				$wp_query->set('post_parent', $_GET['report_id']);
				$wp_query = $original_query;
				wp_reset_postdata();
			}
		else if (is_admin() && isset($_GET['post_type']) && $_GET['post_type'] != '')
			{
				$original_query = $wp_query;
				$wp_query->set('post_type', $_GET['post_type']);
				$wp_query = $original_query;
				wp_reset_postdata();
			}
	}
function node_admin_posts_filter_restrict_manage_posts()
	{
		global $wpdb;
		$screen = get_current_screen();
		if ($screen->id == "upload")
			{
				
				
				
				$get_pages = $wpdb->get_results("SELECT ID, post_title FROM $wpdb->posts WHERE $wpdb->posts.post_type IN ('page') AND $wpdb->posts.post_status = 'publish' ORDER BY $wpdb->posts.post_title ASC");
				echo '<select name="page_id">';
				echo '<option value="">Filter by page...</option>';
				$current_page = isset($_GET['page_id']) ? $_GET['page_id'] : '';
				foreach ($get_pages as $get_page)
					{
						$select = null;
						if ($current_page == $get_page->ID)
							{
								$select = ' selected="selected"';
							}
						echo '<option value="' . $get_page->ID . '" ' . $select . '>' . $get_page->post_title . '</option>';
					}
				echo '</select>';
				
				
							
				$get_downloads = $wpdb->get_results("SELECT ID, post_title FROM $wpdb->posts WHERE $wpdb->posts.post_type IN ('download') AND $wpdb->posts.post_status = 'publish' ORDER BY $wpdb->posts.post_date DESC");
				echo '<select name="download_id">';
				echo '<option value="">Filter by downloads...</option>';
				$current_download = isset($_GET['download_id']) ? $_GET['download_id'] : '';
				foreach ($get_downloads as $get_download)
					{
						$select = null;
						if ($current_download == $get_download->ID)
							{
								$select = ' selected="selected"';
							}
						echo '<option value="' . $get_download->ID . '" ' . $select . '>' . $get_download->post_title . '</option>';
					}
				echo '</select>';
				
				
				
				$get_reports = $wpdb->get_results("SELECT ID, post_title FROM $wpdb->posts WHERE $wpdb->posts.post_type IN ('reports') AND $wpdb->posts.post_status = 'publish' ORDER BY $wpdb->posts.post_date DESC");
				echo '<select name="report_id">';
				echo '<option value="">Filter by report...</option>';
				$current_report = isset($_GET['report_id']) ? $_GET['report_id'] : '';
				foreach ($get_reports as $get_report)
					{
						$select = null;
						if ($current_report == $get_report->ID)
							{
								$select = ' selected="selected"';
							}
						echo '<option value="' . $get_report->ID . '" ' . $select . '>' . $get_report->post_title . '</option>';
					}
				echo '</select>';
				
				
				
				$get_types = get_post_types();
				echo '<select name="post_type">';
				echo '<option value="">Filter by type...</option>';
				$current_type = isset($_GET['post_type']) ? $_GET['post_type'] : '';
				foreach ($get_types as $get_type)
					{
						$select = null;
						if ($current_type == $get_type)
							{
								$select = ' selected="selected"';
							}
						echo '<option value="' . $get_type . '" ' . $select . '>' . $get_type . '</option>';
					}
				echo '</select>';
				
					
			}
	}
	
?>