Source View: posts_where

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
2145                if ( ! isset($q['meta_compare']) || empty($q['meta_compare']) || ! in_array($q['meta_compare'], array('=', '!=', '>', '>=', '<', '<=')) )
2146                     $q['meta_compare'] = '=';
2147
2148                $where .= $wpdb->prepare("AND $wpdb->postmeta.meta_value {$q['meta_compare']} %s ", $q['meta_value']);
2149           }
2150
2151           // Apply filters on where and join prior to paging so that any
2152           // manipulations to them are reflected in the paging by day queries.
2153           if ( !$q['suppress_filters'] ) {
2154                $where = apply_filters('posts_where', $where);
2155                $join = apply_filters('posts_join', $join);
2156           }
2157
2158           // Paging
2159           if ( empty($q['nopaging']) && !$this->is_singular ) {
2160                $page = absint($q['paged']);
2161                if (empty($page)) {
2162                     $page = 1;
2163                }