我们必须在我们的插件 AppPresser 中完成类似的任务。您可以在这里查看我们的解决方案:https://github.com/WebDevStudios/AppPresser/blob/master/inc/theme-switcher.php
基本上,您需要在 3 个过滤器中更改主题名称:'template'、'option_template'、'option_stylesheet'。
但获取类别并不是那么简单,因为模板检查在 WordPress 进程中发生得足够早,以至于全局 $post 和 $wp_query 对象不可用。
这是一种可以实现的方法:
<?php
add_action( 'setup_theme', 'maybe_theme_switch', 10000 );
function maybe_theme_switch() {
// Not on admin
if ( is_admin() )
return;
$taxonomy = 'category';
$term_slug_to_check = 'uncategorized';
$post_type = 'post';
// This is one way to check if we're on a category archive page
if ( false !== stripos( $_SERVER['REQUEST_URI'], $taxonomy ) ) {
// Remove the taxonomy and directory slashes and it SHOULD leave us with just the term slug
$term_slug = str_ireplace( array( '/', $taxonomy ), '', $_SERVER['REQUEST_URI'] );
// If the term slug matches the one we're checking, do our switch
if ( $term_slug == $term_slug_to_check ) {
return yes_do_theme_switch();
}
}
// Try to get post slug from the URL since the global $post object isn't available this early
$post = get_page_by_path( $_SERVER['REQUEST_URI'], OBJECT, $post_type );
if ( ! $post )
return;
// Get the post's categories
$cats = get_the_terms( $post, $taxonomy );
if ( ! $cats )
return;
// filter out just the category slugs
$term_slugs = wp_list_pluck( $cats, 'slug' );
if ( ! $term_slugs )
return;
// Check if our category to check is there
$is_app_category = in_array( $term_slug_to_check, $term_slugs );
if ( ! $is_app_category )
return;
yes_do_theme_switch();
}
function yes_do_theme_switch( $template ) {
// Ok, switch the current theme.
add_filter( 'template', 'switch_to_my_app_theme' );
add_filter( 'option_template', 'switch_to_my_app_theme' );
add_filter( 'option_stylesheet', 'switch_to_my_app_theme' );
}
function switch_to_my_app_theme( $template ) {
// Your theme slug
$template = 'your-app-theme';
return $template;
}