wp_ajax_get_community_events()

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Performance profile

How much work a call to wp_ajax_get_community_events() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Trivial

Touches nothing outside its own arguments.

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

46–82

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 93.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksdo_action()one call below wp_ajax_get_community_events()

Further down the call graph this can also reach query, option, serialize, cache and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 9 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_ajax_get_community_events() can have, taken from its control-flow graph on PHP 8.5.

Uses · 9

• check_ajax_referer()Verifies the Ajax request to prevent processing requests external of the blog.
• wp_unslash()Removes slashes from a string or recursively removes slashes from strings within an array.
• get_current_user_id()Gets the current user's ID.
• get_user_option()Retrieves user option that can be either per Site or per Network.
• is_wp_error()Checks whether the given variable is a WordPress Error.
• wp_send_json_error()Sends a JSON response back to an Ajax request, indicating failure.
• update_user_meta()Updates user meta field based on user ID.
• wp_send_json_success()Sends a JSON response back to an Ajax request, indicating success.
• WP_Community_Events::__construct()Constructor for WP_Community_Events.

Source code

View on Trac ↗View on GitHub ↗

386function wp_ajax_get_community_events() {387	require_once ABSPATH . 'wp-admin/includes/class-wp-community-events.php';388 389	check_ajax_referer( 'community_events' );390 391	$search         = isset( $_POST['location'] ) ? wp_unslash( $_POST['location'] ) : '';392	$timezone       = isset( $_POST['timezone'] ) ? wp_unslash( $_POST['timezone'] ) : '';393	$user_id        = get_current_user_id();394	$saved_location = get_user_option( 'community-events-location', $user_id );395	$events_client  = new WP_Community_Events( $user_id, $saved_location );396	$events         = $events_client->get_events( $search, $timezone );397	$ip_changed     = false;398 399	if ( is_wp_error( $events ) ) {400		wp_send_json_error(401			array(402				'error' => $events->get_error_message(),403			)404		);405	} else {406		if ( empty( $saved_location['ip'] ) && ! empty( $events['location']['ip'] ) ) {407			$ip_changed = true;408		} elseif ( isset( $saved_location['ip'] ) && ! empty( $events['location']['ip'] ) && $saved_location['ip'] !== $events['location']['ip'] ) {409			$ip_changed = true;410		}411 412		/*413		 * The location should only be updated when it changes. The API doesn't always return414		 * a full location; sometimes it's missing the description or country. The location415		 * that was saved during the initial request is known to be good and complete, though.416		 * It should be left intact until the user explicitly changes it (either by manually417		 * searching for a new location, or by changing their IP address).418		 *419		 * If the location was updated with an incomplete response from the API, then it could420		 * break assumptions that the UI makes (e.g., that there will always be a description421		 * that corresponds to a latitude/longitude location).422		 *423		 * The location is stored network-wide, so that the user doesn't have to set it on each site.424		 */425		if ( $ip_changed || $search ) {426			update_user_meta( $user_id, 'community-events-location', $events['location'] );427		}428 429		wp_send_json_success( $events );430	}431}

Changelog

Introduced in 4.8.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-admin/includes/ajax-actions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

Something wrong on this page? Report it and it gets fixed in the next regeneration.