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<?php
/**
* Template loading functions.
*
* @package WordPress
* @subpackage Template
*/
/**
* Retrieve path to a template
*
* Used to quickly retrieve the path of a template without including the file
* extension. It will also check the parent theme, if the file exists, with
* the use of {@link locate_template()}. Allows for more generic template location
* without the use of the other get_*_template() functions.
*
* @since 1.5.0
*
* @param string $type Filename without extension.
* @param array $templates An optional list of template candidates
* @return string Full path to template file.
*/
function get_query_template( $type, $templates = array() ) {
$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
if ( empty( $templates ) )
$templates = array("{$type}.php");
$template = locate_template( $templates );
/**
* Filter the path of the queried template by type.
*
* The dynamic portion of the hook name, `$type`, refers to the filename -- minus the file
* extension and any non-alphanumeric characters delimiting words -- of the file to load.
* This hook also applies to various types of files loaded as part of the Template Hierarchy.
*
* Possible values for `$type` include: 'index', '404', 'archive', 'author', 'category', 'tag', 'taxonomy', 'date',
* 'home', 'front_page', 'page', 'paged', 'search', 'single', 'singular', and 'attachment'.
*
* @since 1.5.0
*
* @param string $template Path to the template. See locate_template().
*/
return apply_filters( "{$type}_template", $template );
}
/**
* Retrieve path of index template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'index_template'.
*
* @since 3.0.0
*
* @see get_query_template()
*
* @return string Full path to index template file.
*/
function get_index_template() {
return get_query_template('index');
}
/**
* Retrieve path of 404 template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. '404_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to 404 template file.
*/
function get_404_template() {
return get_query_template('404');
}
/**
* Retrieve path of archive template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'archive_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to archive template file.
*/
function get_archive_template() {
$post_types = array_filter( (array) get_query_var( 'post_type' ) );
$templates = array();
if ( count( $post_types ) == 1 ) {
$post_type = reset( $post_types );
$templates[] = "archive-{$post_type}.php";
}
$templates[] = 'archive.php';
return get_query_template( 'archive', $templates );
}
/**
* Retrieve path of post type archive template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'archive_template'.
*
* @since 3.7.0
*
* @see get_archive_template()
*
* @return string Full path to archive template file.
*/
function get_post_type_archive_template() {
$post_type = get_query_var( 'post_type' );
if ( is_array( $post_type ) )
$post_type = reset( $post_type );
$obj = get_post_type_object( $post_type );
if ( ! $obj->has_archive )
return '';
return get_archive_template();
}
/**
* Retrieve path of author template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'author_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to author template file.
*/
function get_author_template() {
$author = get_queried_object();
$templates = array();
if ( $author instanceof WP_User ) {
$templates[] = "author-{$author->user_nicename}.php";
$templates[] = "author-{$author->ID}.php";
}
$templates[] = 'author.php';
return get_query_template( 'author', $templates );
}
/**
* Retrieve path of category template in current or parent template.
*
* Works by first retrieving the current slug, for example 'category-default.php',
* and then trying category ID, for example 'category-1.php', and will finally fall
* back to category.php template, if those files don't exist.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'category_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to category template file.
*/
function get_category_template() {
$category = get_queried_object();
$templates = array();
if ( ! empty( $category->slug ) ) {
$templates[] = "category-{$category->slug}.php";
$templates[] = "category-{$category->term_id}.php";
}
$templates[] = 'category.php';
return get_query_template( 'category', $templates );
}
/**
* Retrieve path of tag template in current or parent template.
*
* Works by first retrieving the current tag name, for example 'tag-wordpress.php',
* and then trying tag ID, for example 'tag-1.php', and will finally fall back to
* tag.php template, if those files don't exist.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'tag_template'.
*
* @since 2.3.0
*
* @see get_query_template()
*
* @return string Full path to tag template file.
*/
function get_tag_template() {
$tag = get_queried_object();
$templates = array();
if ( ! empty( $tag->slug ) ) {
$templates[] = "tag-{$tag->slug}.php";
$templates[] = "tag-{$tag->term_id}.php";
}
$templates[] = 'tag.php';
return get_query_template( 'tag', $templates );
}
/**
* Retrieve path of taxonomy template in current or parent template.
*
* Retrieves the taxonomy and term, if term is available. The template is
* prepended with 'taxonomy-' and followed by both the taxonomy string and
* the taxonomy string followed by a dash and then followed by the term.
*
* The taxonomy and term template is checked and used first, if it exists.
* Second, just the taxonomy template is checked, and then finally, taxonomy.php
* template is used. If none of the files exist, then it will fall back on to
* index.php.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'taxonomy_template'.
*
* @since 2.5.0
*
* @see get_query_template()
*
* @return string Full path to taxonomy template file.
*/
function get_taxonomy_template() {
$term = get_queried_object();
$templates = array();
if ( ! empty( $term->slug ) ) {
$taxonomy = $term->taxonomy;
$templates[] = "taxonomy-$taxonomy-{$term->slug}.php";
$templates[] = "taxonomy-$taxonomy.php";
}
$templates[] = 'taxonomy.php';
return get_query_template( 'taxonomy', $templates );
}
/**
* Retrieve path of date template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'date_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to date template file.
*/
function get_date_template() {
return get_query_template('date');
}
/**
* Retrieve path of home template in current or parent template.
*
* This is the template used for the page containing the blog posts.
* Attempts to locate 'home.php' first before falling back to 'index.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'home_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to home template file.
*/
function get_home_template() {
$templates = array( 'home.php', 'index.php' );
return get_query_template( 'home', $templates );
}
/**
* Retrieve path of front-page template in current or parent template.
*
* Looks for 'front-page.php'. The template path is filterable via the
* dynamic {@see '$type_template'} hook, e.g. 'frontpage_template'.
*
* @since 3.0.0
*
* @see get_query_template()
*
* @return string Full path to front page template file.
*/
function get_front_page_template() {
$templates = array('front-page.php');
return get_query_template( 'front_page', $templates );
}
/**
* Retrieve path of page template in current or parent template.
*
* Will first look for the specifically assigned page template.
* Then will search for 'page-{slug}.php', followed by 'page-{id}.php',
* and finally 'page.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'page_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to page template file.
*/
function get_page_template() {
$id = get_queried_object_id();
$template = get_page_template_slug();
$pagename = get_query_var('pagename');
if ( ! $pagename && $id ) {
// If a static page is set as the front page, $pagename will not be set. Retrieve it from the queried object
$post = get_queried_object();
if ( $post )
$pagename = $post->post_name;
}
$templates = array();
if ( $template && 0 === validate_file( $template ) )
$templates[] = $template;
if ( $pagename )
$templates[] = "page-$pagename.php";
if ( $id )
$templates[] = "page-$id.php";
$templates[] = 'page.php';
return get_query_template( 'page', $templates );
}
/**
* Retrieve path of paged template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'paged_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to paged template file.
*/
function get_paged_template() {
return get_query_template('paged');
}
/**
* Retrieve path of search template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'search_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to search template file.
*/
function get_search_template() {
return get_query_template('search');
}
/**
* Retrieve path of single template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'single_template'.
*
* @since 1.5.0
* @since 4.4.0 `single-{post_type}-{post_name}.php` was added to the top of the template hierarchy.
*
* @see get_query_template()
*
* @return string Full path to single template file.
*/
function get_single_template() {
$object = get_queried_object();
$templates = array();
if ( ! empty( $object->post_type ) ) {
$templates[] = "single-{$object->post_type}-{$object->post_name}.php";
$templates[] = "single-{$object->post_type}.php";
}
$templates[] = "single.php";
return get_query_template( 'single', $templates );
}
/**
* Retrieves an embed template path in the current or parent template.
*
* By default the WordPress-template is returned.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'embed_template'.
*
* @since 4.5.0
*
* @see get_query_template()
*
* @return string Full path to embed template file.
*/
function get_embed_template() {
$object = get_queried_object();
$templates = array();
if ( ! empty( $object->post_type ) ) {
$post_format = get_post_format( $object );
if ( $post_format ) {
$templates[] = "embed-{$object->post_type}-{$post_format}.php";
}
$templates[] = "embed-{$object->post_type}.php";
}
$templates[] = "embed.php";
return get_query_template( 'embed', $templates );
}
/**
* Retrieves the path of the singular template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'singular_template'.
*
* @since 4.3.0
*
* @see get_query_template()
*
* @return string Full path to singular template file
*/
function get_singular_template() {
return get_query_template( 'singular' );
}
/**
* Retrieve path of attachment template in current or parent template.
*
* The attachment path first checks if the first part of the mime type exists.
* The second check is for the second part of the mime type. The last check is
* for both types separated by an underscore. If neither are found then the file
* 'attachment.php' is checked and returned.
*
* Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
* finally 'text-plain.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'attachment_template'.
*
* @since 2.0.0
*
* @see get_query_template()
*
* @global array $posts
*
* @return string Full path to attachment template file.
*/
function get_attachment_template() {
$attachment = get_queried_object();
$templates = array();
if ( $attachment ) {
if ( false !== strpos( $attachment->post_mime_type, '/' ) ) {
list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
} else {
list( $type, $subtype ) = array( $attachment->post_mime_type, '' );
}
if ( ! empty( $subtype ) ) {
$templates[] = "{$type}-{$subtype}.php";
$templates[] = "{$subtype}.php";
}
$templates[] = "{$type}.php";
}
$templates[] = 'attachment.php';
return get_query_template( 'attachment', $templates );
}
/**
* Retrieve the name of the highest priority template file that exists.
*
* Searches in the STYLESHEETPATH before TEMPLATEPATH and wp-includes/theme-compat
* so that themes which inherit from a parent theme can just overload one file.
*
* @since 2.7.0
*
* @param string|array $template_names Template file(s) to search for, in order.
* @param bool $load If true the template file will be loaded if it is found.
* @param bool $require_once Whether to require_once or require. Default true. Has no effect if $load is false.
* @return string The template filename if one is located.
*/
function locate_template($template_names, $load = false, $require_once = true ) {
$located = '';
foreach ( (array) $template_names as $template_name ) {
if ( !$template_name )
continue;
if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
$located = STYLESHEETPATH . '/' . $template_name;
break;
} elseif ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
$located = TEMPLATEPATH . '/' . $template_name;
break;
} elseif ( file_exists( ABSPATH . WPINC . '/theme-compat/' . $template_name ) ) {
$located = ABSPATH . WPINC . '/theme-compat/' . $template_name;
break;
}
}
if ( $load && '' != $located )
load_template( $located, $require_once );
return $located;
}
/**
* Require the template file with WordPress environment.
*
* The globals are set up for the template file to ensure that the WordPress
* environment is available from within the function. The query variables are
* also available.
*
* @since 1.5.0
*
* @global array $posts
* @global WP_Post $post
* @global bool $wp_did_header
* @global WP_Query $wp_query
* @global WP_Rewrite $wp_rewrite
* @global wpdb $wpdb
* @global string $wp_version
* @global WP $wp
* @global int $id
* @global WP_Comment $comment
* @global int $user_ID
*
* @param string $_template_file Path to template file.
* @param bool $require_once Whether to require_once or require. Default true.
*/
function load_template( $_template_file, $require_once = true ) {
global $posts, $post, $wp_did_header, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
if ( is_array( $wp_query->query_vars ) ) {
extract( $wp_query->query_vars, EXTR_SKIP );
}
if ( isset( $s ) ) {
$s = esc_attr( $s );
}
if ( $require_once ) {
require_once( $_template_file );
} else {
require( $_template_file );
}
}