1.9/docs_2examples_2actions_2basic_8php_source.html

 <?php
 $rating = get_input('rating');
 $guid = get_input('guid');

 $entity = get_entity($guid);
 if (!$entity) {
     register_error(elgg_echo('rating:failure'));
     forward(REFERER);
 }

 $entity->annotate('rating', $rating);

 system_message(elgg_echo('rating:success'));
 forward(REFERER);
get_input
get_input($variable, $default=null, $filter_result=true)
Get some input from variables passed submitted through GET or POST.
Definition: input.php:27

$guid
$guid
Definition: basic.php:11

forward
elgg forward
Meant to mimic the php forward() function by simply redirecting the user to another page...
Definition: elgglib.js:419

$entity
$entity
Definition: basic.php:13

elgg_echo
elgg_echo($message_key, $args=array(), $language="")
Given a message key, returns an appropriately translated full-text string.
Definition: languages.php:21

REFERER
const REFERER
Definition: elgglib.php:2162

system_message
elgg system_message
Wrapper function for system_messages.
Definition: elgglib.js:374

register_error
elgg register_error
Wrapper function for system_messages.
Definition: elgglib.js:383

$rating
$rating
Demonstrates adding an annotation through an action.
Definition: basic.php:10

get_entity
get_entity($guid)
Loads and returns an entity object from a guid.
Definition: entities.php:604