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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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1393 |
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1394 | // Apply post-paging filters on where and join. Only plugins that |
1395 | // manipulate paging queries should use these hooks. |
1396 |
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1397 | $where = apply_filters('posts_where_paged', $where); |
1398 | $groupby = apply_filters('posts_groupby', $groupby); |
1399 | $join = apply_filters('posts_join_paged', $join); |
1400 | $orderby = apply_filters('posts_orderby', $q['orderby']); |
1401 | $distinct = apply_filters('posts_distinct', $distinct); |
1402 | $fields = apply_filters('posts_fields', "$wpdb->posts.*"); |
1403 | $limits = apply_filters( 'post_limits', $limits ); |
1404 |
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1405 | // Announce current selection parameters. For use by caching plugins. |
1406 | do_action( 'posts_selection', $where . $groupby . $orderby . $limits . $join ); |
1407 |
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1408 | // Filter again for the benefit of caching plugins. Regular plugins should use the hooks above. |
1409 | $where = apply_filters('posts_where_request', $where); |
1410 | $groupby = apply_filters('posts_groupby_request', $groupby); |
1411 | $join = apply_filters('posts_join_request', $join); |