[wp-trac] [WordPress Trac] #21803: Add filter to make extending searching easier

[WordPress Trac]

#21803: Add filter to make extending searching easier
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 Reporter:  mark8barnes  |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Query        |    Version:  3.4
 Severity:  normal       |   Keywords:  has-patch needs-testing
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 I'm using custom post types, and want to extend the search function so
 more than post_title and post_content are searched. It is currently
 possible to filter `posts_search` but that returns a string such as ` AND
 (((wp_posts.post_title LIKE '%test%') OR (wp_posts.post_content LIKE
 '%test%'))) `. This string then has to be rather messily manipulated via
 `preg_replace` or `str_replace`.

 It would be more useful if we could filter a list of fields to be added to
 the search criteria, so that we could add a function to extend or change
 the criteria:

 {{{
 add_filter ('search_fields', 'my_custom_search_fields');

 function my_custom_search_fields ($fields) {
     global $wpdb;
     $fields[] = "{$wpdb->prefix}posts.post_excerpt";
     return $fields;
 }
 }}}

 The attached patch implements that filter.

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Ticket URL: <http://core.trac.wordpress.org/ticket/21803>
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