Turn query string to sub page

Question

I have a custom post type called event. The URL structure looks like this.

http://my-url.com/events/2016/08/21/workshop

Where "workshop" is the name of the event. Right now the template will show different data depending on the query string. For example this URL:

http://my-url.com/events/2016/08/21/workshop?sub=files

Will loop out some files. I'm adding the query string so i can do that in the same template.

<?php
$sub = isset( $_GET['sub'] ) ? $_GET['sub'] : null;
switch ( $sub ) {
    case "files":
        echo "TODO: Loop out files";
        break;
    case "participants":
        echo "TODO: Loop out participants";
        break;
    case "agenda":
        echo "TODO: Write out the agenda!";
        break;
        <!-- etc -->
}
?>

But i don't like this URL structure! I'd like the URL to be:

http://my-url.com/events/2016/08/21/workshop/files

So that i in the "Event" template (/workshop/) can look at the URL structure instead of the query string. The problem is that adding /filesto the URL will make wordpress look for a page that doesn't exist and give a 404.

Is it possible to do some URL wizardry so the template (and post data) of this url:

http://my-url.com/events/2016/08/21/workshop/

Also kicks in with this URL:

http://my-url.com/events/2016/08/21/workshop/agenda/

To clarify, you want URLs such as http://web.site/events/2016/08/16/hello-world?sub=files http://web.site/events/1999/12/31/new-years?sub=images to strip ?sub= and replace it with a / to be 2016/08/16/hello-world/files? — Ethan Rævan
– Ethan Rævan, Commented Aug 26, 2016 at 4:52
@EthanJinksO'Sullivan Nope, don't wanna use query strings at all. See "update 2" — Johan B
– Johan B, Commented Aug 27, 2016 at 7:03
I'm confused by your question then. From what I understand: your website is having pages with .../events/2016/08/21/workshop?sub=files but you want the structure to be /events/2016/08/21/workshop/files instead. Where /files is another page template? You're gonna have to clarify your question more. Since I'm not the only one not understanding it entirely. — Ethan Rævan
– Ethan Rævan, Commented Aug 28, 2016 at 3:18
@EthanJinksO'Sullivan Sorry for the confusion. Your assumption is almost exactly what i mean. Except the last part. I want /files to use the same template (and post object) as the "Event" (/workshop/). I have rewritten the post to clarify more. — Johan B
– Johan B, Commented Aug 29, 2016 at 12:32

CodeMascot · Accepted Answer · 2016-08-21 16:39:31Z

2

Put this code in your functions.php-

function the_dramatist_url_rewrite() {
    global $wp_rewrite;
    add_rewrite_tag('%sub%', '([^&]+)');
    add_rewrite_rule(
        '^events/%year%/%monthnum%/%day%/%postname%/?', 
        'index.php/events/%year%/%monthnum%/%day%/%postname%?sub=$matches[1]', 
        'top'
    );
}
add_action('init', 'the_dramatist_url_rewrite', 10, 0);

The go to the permalinks page in the settings menu at dashboard and hit Save Changes button. Hope this is gonna help.

edited Aug 21, 2016 at 16:39

answered Aug 21, 2016 at 16:25

CodeMascot

4,5472 gold badges15 silver badges25 bronze badges

ps: the add_rewrite_rule might need some fixing too

birgire
– birgire

2016-08-21 16:45:24 +00:00
Commented Aug 21, 2016 at 16:45
Sure. Go ahead. You can edit my answer or you can suggest me. :)

CodeMascot
– CodeMascot

2016-08-21 16:55:22 +00:00
Commented Aug 21, 2016 at 16:55
Since I don't fully understand the question I don't want to do possible wrong edits ;-) like if files is a static word or if it's for any file attachment or something else or how the current rewrite rules are constructed? But hopefully OP can use your suggestions as a starting point and even explain it better for you. PS: I noticed a missing ? for index.php and then it's not clear what matches $matches[1].

birgire
– birgire

2016-08-21 20:57:02 +00:00
Commented Aug 21, 2016 at 20:57
Sorry, i was a bit unclear. I updated my question. I don't to rewrite my query strings. I don't want to use them at all. Problem is; how do i make the template to be used when there is an extra step in the URL?

Johan B
– Johan B

2016-08-22 08:26:31 +00:00
Commented Aug 22, 2016 at 8:26

Add a comment |

Johan B · Accepted Answer · 2016-10-14 12:58:27Z

I ended up using end points. This is my final (but simplified) code. In functions i added this.

add_action('init', 'jbenjaminsson_add_endpoints');
function jbenjaminsson_add_endpoints()
{
    add_rewrite_endpoint( 'files', EP_PERMALINK );
    add_rewrite_endpoint( 'participants', EP_PERMALINK );
    add_rewrite_endpoint( 'agenda', EP_PERMALINK );
}

add_filter( 'request', 'jbenjaminsson_filter_request' );
function jbenjaminsson_filter_request( $vars )
{
    if( isset( $vars['files'] ) ) $vars['files'] = true;
    if( isset( $vars['participants'] ) ) $vars['participants'] = true;
    if( isset( $vars['agenda'] ) ) $vars['agenda'] = true;
    return $vars;
}

And on the template i did this:

if ( get_query_var( 'files' ) ) {
    get_template_part( '/template-parts/event', 'files' );
} elseif ( get_query_var( 'participants' ) ) {
    get_template_part( '/template-parts/event', 'participants' );
} elseif ( get_query_var( 'agenda' ) ) {
    get_template_part( '/template-parts/event', 'agenda' );
}

Need to change EP_PERMALINK to EP_PERMALINK | EP_PAGES if you're on a page (and maybe other cases) and make sure to re-save permalink settings. — joshcanhelp
– joshcanhelp, Commented Apr 17, 2017 at 23:41

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