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@joshuaburlesoOct 24.2022 — #There are a few ways to go about this in WP. In terms of ease and extensibility, you should be able to use, and go with, the pre_get_posts hook. How you implement custom taxonomies is going to depend on how you created them. If you used a plug-in then sometimes these have some funky naming conventions (or even on rare occasion have a tricky way of finding them), just check the docs for the plugin if that's the case; it's generally not difficult. In this case I'm going to pretend you have a single self-defined custom taxonomy called "stack".
As a side-note, you could of course make your life easier and use a function to generate these very repeated query filter definitions. For example:
Like I said, this isn't the only way to go about it, but it's the strategy I used when I worked with WP and it worked well.
@ESCRCreativeStudiosAug 26.2022 — #add_filter('posts_where', 'custom_posts_where');
function custom_posts_where($where) {
if (is_search()) {
$where = preg_replace(
"/(\w+).post_title LIKE ('%.*?%')/",
"$1.post_title LIKE $2) OR ($1.post_excerpt LIKE $2",
$where);
}
return $where;
}
inside functions.php
Quite a weird way to do it but it’s a workaround if you don’t want to use the WP extended search plugin
How to extend the WordPress Search to Taxonomies?
By default, WordPress Search is somewhat limited and seems to pull results based on Title/Content only. If I write a Post and Tag it “JavaScript” but don’t mention that specific keyword in the Title/Content, searching the site for JavaScript won’t show this Post in the search results despite the Tag.
What would be a minimal function to extend WP search to Tags, Categories, and Custom Taxonomies? Ideally, this could be done without the use of a plugin like WP Extended Search.
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to post a answer3 Replies ↴
4
@joshuaburlesoOct 24.2022 — #There are a few ways to go about this in WP. In terms of ease and extensibility, you should be able to use, and go with, the pre_get_posts hook. How you implement custom taxonomies is going to depend on how you created them. If you used a plug-in then sometimes these have some funky naming conventions (or even on rare occasion have a tricky way of finding them), just check the docs for the plugin if that's the case; it's generally not difficult. In this case I'm going to pretend you have a single self-defined custom taxonomy called "stack".
function expand_search($query) {
if (!is_admin() && $query->is_search) {
$query_term = $query->get('s');
if(!$query_term) return;
$query_terms = explode(' ', $query_term); // optional
// don't forget to sanitize, I'm not going to bother here
array_push($query_terms, $query_term);
$query->set(
'tax_query',
array(
'relation' => 'OR', array(
array(
'taxonomy' => 'post_tag',
'field' => 'slug',
'terms' => $query_terms
),
array(
'taxonomy' => 'category',
'field' => 'slug',
'terms' => $query_terms
),
array(
'taxonomy' => 'stack',
'field' => 'slug',
'terms' => $query_terms
)
)
)
);
}
}
add_action( 'pre_get_posts', 'expand_search' );
As a side-note, you could of course make your life easier and use a function to generate these very repeated query filter definitions. For example:
function tax_query_filter($taxonomy, $terms, $field = 'slug') {
return array(
'taxonomy' => $taxonomy,
'field' => $field,
'terms' => $terms
);
}
Like I said, this isn't the only way to go about it, but it's the strategy I used when I worked with WP and it worked well.
0
@ESCRCreativeStudiosAug 26.2022 — #add_filter('posts_where', 'custom_posts_where');function custom_posts_where($where) {
if (is_search()) {
$where = preg_replace(
"/(\w+).post_title LIKE ('%.*?%')/",
"$1.post_title LIKE $2) OR ($1.post_excerpt LIKE $2",
$where);
}
return $where;
}
inside functions.php
Quite a weird way to do it but it’s a workaround if you don’t want to use the WP extended search plugin