seanuk

There are some common plugins used on most sites, but even a site with no plugins installed has the problem.

ok, I found this http://codex.ww.wp.xz.cn/Plugin_API/Filter_Reference/single_template and I have added 3 functions to my plugin, one for each archive_template, single_template and taxonomy_template

is there a way to combine them into one function?

function get_single_template($single_template) {
     global $post;
     if ($post->post_type == 'portfolio') {
          $single_template = dirname( __FILE__ ) . '/single-portfolio.php';
     }
     return $single_template;
}
add_filter( "single_template", "get_single_template" ) ;

function get_archive_template($archive_template) {
     global $post;
     if ($post->post_type == 'portfolio') {
          $archive_template = dirname( __FILE__ ) . '/archive-portfolio.php';
     }
     return $archive_template;
}
add_filter( "archive_template", "get_archive_template" ) ;

function get_taxonomy_template($taxonomy_template) {
     global $post;
     if ($post->post_type == 'portfolio') {
          $taxonomy_template = dirname( __FILE__ ) . '/taxonomy-portfolio.php';
     }
     return $taxonomy_template;
}
add_filter( "taxonomy_template", "get_taxonomy_template" ) ;