function prepare_items($per_page)
{
global $wpdb;
/**
* REQUIRED. Now we need to define our column headers. This includes a complete
* array of columns to be displayed (slugs & titles), a list of columns
* to keep hidden, and a list of columns that are sortable. Each of these
* can be defined in another method (as we've done here) before being
* used to build the value for our _column_headers property.
*/
$columns = $this->get_columns();
$hidden = array();
$sortable = $this->get_sortable_columns();
/**
* REQUIRED. Finally, we build an array to be used by the class for column
* headers. The $this->_column_headers property takes an array which contains
* 3 other arrays. One for all columns, one for hidden columns, and one
* for sortable columns.
*/
$this->_column_headers = array($columns, $hidden, $sortable);
/**
* Optional. You can handle your bulk actions however you see fit. In this
* case, we'll handle them within our package just to keep things clean.
*/
$this->process_bulk_action();
/**
* Get all the shares and convert in array for this class to process
*/
// Get the context
$consumer = new LTI_Tool_Consumer($_SESSION[LTI_SESSION_PREFIX . 'key'], array($wpdb->base_prefix));
$resource = new LTI_Resource_Link($consumer, $_SESSION[LTI_SESSION_PREFIX . 'resourceid']);
$lti_shares = $resource->getShares();
for ($i = 0; $i < count($lti_shares); $i++) {
$data[$i]['ID'] = $i;
$data[$i]['name'] = $lti_shares[$i]->title;
$data[$i]['key'] = $lti_shares[$i]->consumer_key;
$data[$i]['approved'] = $lti_shares[$i]->approved ? 'Yes' : 'No';
$data[$i]['resource_link_id'] = $lti_shares[$i]->resource_link_id;
}
/**
* This checks for sorting input and sorts the data in our array accordingly.
*
* In a real-world situation involving a database, you would probably want
* to handle sorting by passing the 'orderby' and 'order' values directly
* to a custom query. The returned data will be pre-sorted, and this array
* sorting technique would be unnecessary.
*/
function usort_reorder($a, $b)
{
$orderby = !empty($_REQUEST['orderby']) ? $_REQUEST['orderby'] : 'name';
//If no sort, default to title
$order = !empty($_REQUEST['order']) ? $_REQUEST['order'] : 'asc';
//If no order, default to asc
$result = strcmp($a[$orderby], $b[$orderby]);
//Determine sort order
return $order === 'asc' ? $result : -$result;
//Send final sort direction to usort
}
// Don't usort if there is no data
if (isset($data)) {
usort($data, 'usort_reorder');
}
/**
* REQUIRED for pagination. Let's figure out what page the user is currently
* looking at. We'll need this later, so you should always include it in
* your own package classes.
*/
$current_page = $this->get_pagenum();
/**
* REQUIRED for pagination. Let's check how many items are in our data array.
* In real-world use, this would be the total number of items in your database,
* without filtering. We'll need this later, so you should always include it
* in your own package classes.
*/
$total_items = 0;
if (isset($data)) {
$total_items = count($data);
}
/**
* The WP_List_Table class does not handle pagination for us, so we need
* to ensure that the data is trimmed to only the current page. There needs
* to be data here...
*/
if ($total_items > 0) {
$data = array_slice($data, ($current_page - 1) * $per_page, $per_page);
}
/**
* REQUIRED. Now we can add our *sorted* data to the items property, where
* it can be used by the rest of the class.
*/
if (isset($data)) {
$this->items = $data;
}
/**
* REQUIRED. We also have to register our pagination options & calculations.
*/
$this->set_pagination_args(array('total_items' => $total_items, 'per_page' => $per_page, 'total_pages' => ceil($total_items / $per_page)));
}
function lti_get_share_enabled_state($key)
{
global $wpdb;
$consumer = new LTI_Tool_Consumer($_SESSION[LTI_SESSION_PREFIX . 'key'], array($wpdb->base_prefix));
$resource = new LTI_Resource_Link($consumer, $_SESSION[LTI_SESSION_PREFIX . 'resourceid']);
$shares = $resource->getShares();
foreach ($shares as $share) {
if ($share->consumer_key == $key) {
$reply = is_null($share->approved) ? FALSE : TRUE;
return $reply;
}
}
return FALSE;
}
