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<?php |
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namespace Elgg\Database; |
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/** |
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* WARNING: API IN FLUX. DO NOT USE DIRECTLY. |
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* |
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* Controls all admin notices in the system. |
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* |
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* @access private |
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* |
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* @package Elgg.Core |
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* @subpackage Database |
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* @since 1.10.0 |
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*/ |
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class AdminNotices { |
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/** |
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* Write a persistent message to the admin view. |
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* Useful to alert the admin to take a certain action. |
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* The id is a unique ID that can be cleared once the admin |
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* completes the action. |
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* |
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* eg: add_admin_notice('twitter_services_no_api', |
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* 'Before your users can use Twitter services on this site, you must set up |
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* the Twitter API key in the <a href="link">Twitter Services Settings</a>'); |
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* |
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* @param string $id A unique ID that your plugin can remember |
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* @param string $message Body of the message |
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* |
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* @return bool |
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*/ |
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function add($id, $message) { |
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if ($id && $message) { |
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if (elgg_admin_notice_exists($id)) { |
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return false; |
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} |
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// need to handle when no one is logged in |
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$old_ia = elgg_set_ignore_access(true); |
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$admin_notice = new \ElggObject(); |
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$admin_notice->subtype = 'admin_notice'; |
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// admins can see ACCESS_PRIVATE but no one else can. |
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$admin_notice->access_id = ACCESS_PRIVATE; |
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$admin_notice->admin_notice_id = $id; |
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$admin_notice->description = $message; |
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$result = $admin_notice->save(); |
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elgg_set_ignore_access($old_ia); |
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return (bool)$result; |
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} |
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return false; |
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} |
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/** |
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* Remove an admin notice by ID. |
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* |
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* eg In actions/twitter_service/save_settings: |
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* if (is_valid_twitter_api_key()) { |
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* delete_admin_notice('twitter_services_no_api'); |
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* } |
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* |
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* @param string $id The unique ID assigned in add_admin_notice() |
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* |
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* @return bool |
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*/ |
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function delete($id) { |
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if (!$id) { |
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return false; |
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} |
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$result = true; |
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$notices = elgg_get_entities_from_metadata(array( |
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'metadata_name' => 'admin_notice_id', |
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'metadata_value' => $id, |
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'distinct' => false, |
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)); |
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if ($notices) { |
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// in case a bad plugin adds many, let it remove them all at once. |
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foreach ($notices as $notice) { |
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$result = ($result && $notice->delete()); |
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} |
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return $result; |
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} |
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return false; |
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} |
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/** |
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* Get admin notices. An admin must be logged in since the notices are private. |
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* |
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* @param int $limit Limit |
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* |
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* @return array Array of admin notices |
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*/ |
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function find($limit = 10) { |
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return elgg_get_entities_from_metadata(array( |
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'type' => 'object', |
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'subtype' => 'admin_notice', |
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'limit' => $limit, |
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'distinct' => false, |
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)); |
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} |
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/** |
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* Check if an admin notice is currently active. |
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* |
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* @param string $id The unique ID used to register the notice. |
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* |
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* @return bool |
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* @since 1.8.0 |
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*/ |
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function exists($id) { |
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$old_ia = elgg_set_ignore_access(true); |
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$notice = elgg_get_entities_from_metadata(array( |
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'type' => 'object', |
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'subtype' => 'admin_notice', |
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'metadata_name_value_pair' => array('name' => 'admin_notice_id', 'value' => $id), |
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'distinct' => false, |
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)); |
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elgg_set_ignore_access($old_ia); |
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return ($notice) ? true : false; |
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} |
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} |