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111f59eac5
git-svn-id: http://core.svn.wordpress.org/trunk@20872 1a063a9b-81f0-0310-95a4-ce76da25c4cd
395 lines
10 KiB
PHP
395 lines
10 KiB
PHP
<?php
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/**
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* Template loading functions.
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*
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* @package WordPress
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* @subpackage Template
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*/
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/**
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* Retrieve path to a template
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*
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* Used to quickly retrieve the path of a template without including the file
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* extension. It will also check the parent theme, if the file exists, with
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* the use of {@link locate_template()}. Allows for more generic template location
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* without the use of the other get_*_template() functions.
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*
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* @since 1.5.0
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*
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* @param string $type Filename without extension.
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* @param array $templates An optional list of template candidates
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* @return string Full path to file.
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*/
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function get_query_template( $type, $templates = array() ) {
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$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
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if ( empty( $templates ) )
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$templates = array("{$type}.php");
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return apply_filters( "{$type}_template", locate_template( $templates ) );
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}
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/**
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* Retrieve path of index template in current or parent template.
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*
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* @since 3.0.0
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*
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* @return string
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*/
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function get_index_template() {
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return get_query_template('index');
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}
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/**
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* Retrieve path of 404 template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_404_template() {
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return get_query_template('404');
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}
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/**
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* Retrieve path of archive template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_archive_template() {
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$post_type = get_query_var( 'post_type' );
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$templates = array();
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if ( $post_type )
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$templates[] = "archive-{$post_type}.php";
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$templates[] = 'archive.php';
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return get_query_template( 'archive', $templates );
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}
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/**
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* Retrieve path of author template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_author_template() {
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$author = get_queried_object();
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$templates = array();
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$templates[] = "author-{$author->user_nicename}.php";
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$templates[] = "author-{$author->ID}.php";
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$templates[] = 'author.php';
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return get_query_template( 'author', $templates );
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}
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/**
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* Retrieve path of category template in current or parent template.
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*
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* Works by first retrieving the current slug for example 'category-default.php' and then
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* trying category ID, for example 'category-1.php' and will finally fallback to category.php
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* template, if those files don't exist.
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*
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* @since 1.5.0
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* @uses apply_filters() Calls 'category_template' on file path of category template.
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*
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* @return string
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*/
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function get_category_template() {
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$category = get_queried_object();
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$templates = array();
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$templates[] = "category-{$category->slug}.php";
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$templates[] = "category-{$category->term_id}.php";
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$templates[] = 'category.php';
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return get_query_template( 'category', $templates );
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}
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/**
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* Retrieve path of tag template in current or parent template.
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*
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* Works by first retrieving the current tag name, for example 'tag-wordpress.php' and then
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* trying tag ID, for example 'tag-1.php' and will finally fallback to tag.php
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* template, if those files don't exist.
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*
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* @since 2.3.0
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* @uses apply_filters() Calls 'tag_template' on file path of tag template.
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*
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* @return string
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*/
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function get_tag_template() {
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$tag = get_queried_object();
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$templates = array();
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$templates[] = "tag-{$tag->slug}.php";
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$templates[] = "tag-{$tag->term_id}.php";
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$templates[] = 'tag.php';
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return get_query_template( 'tag', $templates );
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}
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/**
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* Retrieve path of taxonomy template in current or parent template.
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*
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* Retrieves the taxonomy and term, if term is available. The template is
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* prepended with 'taxonomy-' and followed by both the taxonomy string and
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* the taxonomy string followed by a dash and then followed by the term.
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*
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* The taxonomy and term template is checked and used first, if it exists.
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* Second, just the taxonomy template is checked, and then finally, taxonomy.php
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* template is used. If none of the files exist, then it will fall back on to
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* index.php.
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*
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* @since 2.5.0
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* @uses apply_filters() Calls 'taxonomy_template' filter on found path.
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*
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* @return string
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*/
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function get_taxonomy_template() {
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$term = get_queried_object();
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$taxonomy = $term->taxonomy;
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$templates = array();
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$templates[] = "taxonomy-$taxonomy-{$term->slug}.php";
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$templates[] = "taxonomy-$taxonomy.php";
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$templates[] = 'taxonomy.php';
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return get_query_template( 'taxonomy', $templates );
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}
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/**
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* Retrieve path of date template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_date_template() {
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return get_query_template('date');
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}
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/**
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* Retrieve path of home template in current or parent template.
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*
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* This is the template used for the page containing the blog posts
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*
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* Attempts to locate 'home.php' first before falling back to 'index.php'.
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*
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* @since 1.5.0
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* @uses apply_filters() Calls 'home_template' on file path of home template.
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*
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* @return string
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*/
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function get_home_template() {
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$templates = array( 'home.php', 'index.php' );
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return get_query_template( 'home', $templates );
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}
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/**
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* Retrieve path of front-page template in current or parent template.
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*
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* Looks for 'front-page.php'.
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*
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* @since 3.0.0
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* @uses apply_filters() Calls 'front_page_template' on file path of template.
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*
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* @return string
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*/
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function get_front_page_template() {
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$templates = array('front-page.php');
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return get_query_template( 'front_page', $templates );
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}
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/**
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* Retrieve path of page template in current or parent template.
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*
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* Will first look for the specifically assigned page template
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* The will search for 'page-{slug}.php' followed by 'page-id.php'
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* and finally 'page.php'
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_page_template() {
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$id = get_queried_object_id();
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$template = get_page_template_slug();
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$pagename = get_query_var('pagename');
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if ( ! $pagename && $id ) {
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// If a static page is set as the front page, $pagename will not be set. Retrieve it from the queried object
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$post = get_queried_object();
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$pagename = $post->post_name;
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}
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$templates = array();
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if ( $template && 0 === validate_file( $template ) )
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$templates[] = $template;
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if ( $pagename )
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$templates[] = "page-$pagename.php";
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if ( $id )
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$templates[] = "page-$id.php";
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$templates[] = 'page.php';
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return get_query_template( 'page', $templates );
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}
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/**
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* Retrieve path of paged template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_paged_template() {
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return get_query_template('paged');
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}
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/**
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* Retrieve path of search template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_search_template() {
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return get_query_template('search');
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}
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/**
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* Retrieve path of single template in current or parent template.
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*
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* @since 1.5.0
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*
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* @return string
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*/
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function get_single_template() {
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$object = get_queried_object();
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$templates = array();
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$templates[] = "single-{$object->post_type}.php";
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$templates[] = "single.php";
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return get_query_template( 'single', $templates );
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}
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/**
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* Retrieve path of attachment template in current or parent template.
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*
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* The attachment path first checks if the first part of the mime type exists.
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* The second check is for the second part of the mime type. The last check is
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* for both types separated by an underscore. If neither are found then the file
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* 'attachment.php' is checked and returned.
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*
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* Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
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* finally 'text_plain.php'.
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*
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* @since 2.0.0
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*
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* @return string
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*/
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function get_attachment_template() {
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global $posts;
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$type = explode('/', $posts[0]->post_mime_type);
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if ( $template = get_query_template($type[0]) )
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return $template;
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elseif ( $template = get_query_template($type[1]) )
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return $template;
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elseif ( $template = get_query_template("$type[0]_$type[1]") )
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return $template;
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else
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return get_query_template('attachment');
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}
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/**
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* Retrieve path of comment popup template in current or parent template.
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*
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* Checks for comment popup template in current template, if it exists or in the
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* parent template.
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*
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* @since 1.5.0
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* @uses apply_filters() Calls 'comments_popup_template' filter on path.
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*
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* @return string
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*/
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function get_comments_popup_template() {
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$template = get_query_template( 'comments_popup', array( 'comments-popup.php' ) );
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// Backward compat code will be removed in a future release
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if ('' == $template)
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$template = ABSPATH . WPINC . '/theme-compat/comments-popup.php';
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return $template;
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}
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/**
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* Retrieve the name of the highest priority template file that exists.
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*
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* Searches in the STYLESHEETPATH before TEMPLATEPATH so that themes which
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* inherit from a parent theme can just overload one file.
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*
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* @since 2.7.0
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*
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* @param string|array $template_names Template file(s) to search for, in order.
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* @param bool $load If true the template file will be loaded if it is found.
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* @param bool $require_once Whether to require_once or require. Default true. Has no effect if $load is false.
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* @return string The template filename if one is located.
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*/
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function locate_template($template_names, $load = false, $require_once = true ) {
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$located = '';
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foreach ( (array) $template_names as $template_name ) {
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if ( !$template_name )
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continue;
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if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
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$located = STYLESHEETPATH . '/' . $template_name;
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break;
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} else if ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
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$located = TEMPLATEPATH . '/' . $template_name;
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break;
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}
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}
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if ( $load && '' != $located )
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load_template( $located, $require_once );
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return $located;
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}
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/**
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* Require the template file with WordPress environment.
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*
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* The globals are set up for the template file to ensure that the WordPress
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* environment is available from within the function. The query variables are
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* also available.
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*
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* @since 1.5.0
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*
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* @param string $_template_file Path to template file.
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* @param bool $require_once Whether to require_once or require. Default true.
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*/
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function load_template( $_template_file, $require_once = true ) {
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global $posts, $post, $wp_did_header, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
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if ( is_array( $wp_query->query_vars ) )
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extract( $wp_query->query_vars, EXTR_SKIP );
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if ( $require_once )
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require_once( $_template_file );
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else
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require( $_template_file );
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}
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