bp_xprofile_update_meta_cache( array $object_ids = array() )
Slurp up xprofilemeta for a specified set of profile objects.
Description
We do not use bp_update_meta_cache() for the xprofile component. This is because the xprofile component has three separate object types (group, field, and data) and three corresponding cache groups. Using the technique in bp_update_meta_cache(), pre-fetching would take three separate database queries. By grouping them together, we can reduce the required queries to one.
This function is called within a bp_has_profile() loop.
Parameters
- $object_ids
-
(array) (Optional) Multi-dimensional array of object_ids, keyed by object type ('group', 'field', 'data').
Default value: array()
Return
(bool)
Source
File: bp-xprofile/bp-xprofile-cache.php
function bp_xprofile_update_meta_cache( $object_ids = array() ) { global $wpdb; // Bail if no objects. if ( empty( $object_ids ) ) { return false; } $bp = buddypress(); // Define the array where uncached object IDs will be stored. $uncached_object_ids = array( 'group', 'field', 'data' ); // Define the cache groups for the 3 types of XProfile metadata. $cache_groups = array( 'group' => 'xprofile_group_meta', 'field' => 'xprofile_field_meta', 'data' => 'xprofile_data_meta', ); // No reason to query yet. $do_query = false; // Loop through object types and look for uncached data. foreach ( $uncached_object_ids as $object_type ) { // Skip if empty object type. if ( empty( $object_ids[ $object_type ] ) ) { continue; } // Sanitize $object_ids passed to the function. $object_type_ids = wp_parse_id_list( $object_ids[ $object_type ] ); // Get non-cached IDs for each object type. $uncached_object_ids[ $object_type ] = bp_get_non_cached_ids( $object_type_ids, $cache_groups[ $object_type ] ); // Set the flag to do the meta query. if ( ! empty( $uncached_object_ids[ $object_type ] ) && ( false === $do_query ) ) { $do_query = true; } } // Bail if no uncached items. if ( false === $do_query ) { return; } // Setup where conditions for query. $where_sql = ''; $where_conditions = array(); // Loop through uncached objects and prepare to query for them. foreach ( $uncached_object_ids as $otype => $oids ) { // Skip empty object IDs. if ( empty( $oids ) ) { continue; } // Compile WHERE query conditions for uncached metadata. $oids_sql = implode( ',', wp_parse_id_list( $oids ) ); $where_conditions[] = $wpdb->prepare( "( object_type = %s AND object_id IN ({$oids_sql}) )", $otype ); } // Bail if no where conditions. if ( empty( $where_conditions ) ) { return; } // Setup the WHERE query part. $where_sql = implode( " OR ", $where_conditions ); // Attempt to query meta values. $meta_list = $wpdb->get_results( "SELECT object_id, object_type, meta_key, meta_value FROM {$bp->profile->table_name_meta} WHERE {$where_sql}" ); // Bail if no results found. if ( empty( $meta_list ) || is_wp_error( $meta_list ) ) { return; } // Setup empty cache array. $cache = array(); // Loop through metas. foreach ( $meta_list as $meta ) { $oid = $meta->object_id; $otype = $meta->object_type; $okey = $meta->meta_key; $ovalue = $meta->meta_value; // Force subkeys to be array type. if ( ! isset( $cache[ $otype ][ $oid ] ) || ! is_array( $cache[ $otype ][ $oid ] ) ) { $cache[ $otype ][ $oid ] = array(); } if ( ! isset( $cache[ $otype ][ $oid ][ $okey ] ) || ! is_array( $cache[ $otype ][ $oid ][ $okey ] ) ) { $cache[ $otype ][ $oid ][ $okey ] = array(); } // Add to the cache array. $cache[ $otype ][ $oid ][ $okey ][] = maybe_unserialize( $ovalue ); } // Loop through data and cache to the appropriate object. foreach ( $cache as $object_type => $object_caches ) { // Determine the cache group for this data. $cache_group = $cache_groups[ $object_type ]; // Loop through objects and cache appropriately. foreach ( $object_caches as $object_id => $object_cache ) { wp_cache_set( $object_id, $object_cache, $cache_group ); } } }
Changelog
Version | Description |
---|---|
BuddyPress 2.0.0 | Introduced. |
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