I want to allow commas in tag names? For example, "hello, world"
or "portland, or"
but WordPress keeps separating them. I can do it from the categories page:
image http://img839.imageshack.us/img839/6869/picturepp.png
And it shows up fine. But anything added from the posts sidebar does not show up ok here:
image http://img52.imageshack.us/img52/4950/picture1oax.png
There is some discussion on it here: http://core.trac.wordpress.org/ticket/14691 but looks like it may not get solved, at least for a while.
In the meantime, I’m looking for an easier solution than adding categories from the categories page.
I’ve tried searching plugins, and didn’t see any that would be helpful. There are a few that deal with replacing commas with other characters when displaying a list of categories, or tags, but I don’t see any plugins that allow the user to replace the default separator.
I don’t care if I have to patch the core myself. Ideally I could write a plugin, but after looking through some of the code I can’t figure out where this gets handled.
Does anybody have a solution, or tips on what functions and javascript to start hacking? I’m not sure where to start looking in the code.
No core hacking needed — thanks to: HOOKS.
Hooks allow to fix the issue with a nice combination of
- a filter replacing “–” by “, ” before output
- and an “if” block to make sure the output is not also filtered for the admin interface 🙂
- and finally, saving all your tags with comma in the format “Fox–Peter” instead of “Fox, Peter”
Here’s the code:
// filter for tags with comma
// replace '--' with ', ' in the output - allow tags with comma this way
// e.g. save tag as "Fox--Peter" but display thx 2 filters like "Fox, Peter"
if(!is_admin()){ // make sure the filters are only called in the frontend
function comma_tag_filter($tag_arr){
$tag_arr_new = $tag_arr;
if($tag_arr->taxonomy == 'post_tag' && strpos($tag_arr->name, '--')){
$tag_arr_new->name = str_replace('--',', ',$tag_arr->name);
}
return $tag_arr_new;
}
add_filter('get_post_tag', 'comma_tag_filter');
function comma_tags_filter($tags_arr){
$tags_arr_new = array();
foreach($tags_arr as $tag_arr){
$tags_arr_new[] = comma_tag_filter($tag_arr);
}
return $tags_arr_new;
}
add_filter('get_terms', 'comma_tags_filter');
add_filter('get_the_terms', 'comma_tags_filter');
}
Maybe some additional details in my blog post to that topic help as well .. http://blog.foobored.com/all/wordpress-tags-with-commas/
Greets,
Andi