Adds a page template filter to the page listing, so you can view a list of pages that have a given template attached.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | class Page_Template_Filter { private $templates = array(); public function __construct() { // If it's not the admin area or the current user can't edit pages let's just bail here if( !is_admin() || !current_user_can('edit_pages') ) return; add_action( 'parse_query', array( $this, 'pt_parse_query' ) ); add_action( 'restrict_manage_posts', array( $this, 'pt_restrict_manage_posts' ) ); } public function pt_parse_query( $query ) { global $pagenow, $post_type; if( 'edit.php' != $pagenow ) return; switch( $post_type ) { case 'post': break; case 'page': $this->templates = get_page_templates(); if( empty( $this->templates ) ) return; if( !$this->is_set_template() ) return; $meta_group = array( 'key' => '_wp_page_template', 'value' => $this->get_template() ); set_query_var( 'meta_query', array( $meta_group ) ); break; } } public function pt_restrict_manage_posts() { if( empty( $this->templates ) ) return; $this->template_dropdown(); } private function get_template() { if( $this->is_set_template() ) foreach( $this->templates as $template ) { if( $template != $_GET['page_template'] ) continue; return $template; } return ''; } private function is_set_template() { return (bool) ( isset( $_GET['page_template'] ) && ( in_array( $_GET['page_template'], $this->templates ) ) ); } private function template_dropdown() { ?> <select name="page_template" id="page_template"> <option value=""> - no template - </option> <?php foreach( $this->templates as $name => $file ): ?> <option value="<?php echo $file; ?>"<?php selected( $this->get_template() == $file ); ?>><?php _e( $name ); ?></option> <?php endforeach;?> </select> <?php } } add_action('admin_init', 'load_ptf'); function load_ptf() { $Page_Template_Filter = new Page_Template_Filter; } |
Requires at least 3.1 to work, though the meta_query could be replaced with the older meta_key and meta_value for 3.0.
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