/**
* Get the SQL for the 'scope' param in BP_Activity_Activity::get().
*
* A scope is a predetermined set of activity arguments. This method is used
* to grab these activity arguments and override any existing args if needed.
*
* Can handle multiple scopes.
*
* @since 2.2.0
*
* @param mixed $scope The activity scope. Accepts string or array of scopes.
* @param array $r Current activity arguments. Same as those of BP_Activity_Activity::get(),
* but merged with defaults.
* @return array 'sql' WHERE SQL string and 'override' activity args.
*/
public static function get_scope_query_sql($scope = false, $r = array())
{
// Define arrays for future use.
$query_args = array();
$override = array();
$retval = array();
// Check for array of scopes.
if (is_array($scope)) {
$scopes = $scope;
// Explode a comma separated string of scopes.
} elseif (is_string($scope)) {
$scopes = explode(',', $scope);
}
// Bail if no scope passed.
if (empty($scopes)) {
return false;
}
// Helper to easily grab the 'user_id'.
if (!empty($r['filter']['user_id'])) {
$r['user_id'] = $r['filter']['user_id'];
}
// Parse each scope; yes! we handle multiples!
foreach ($scopes as $scope) {
$scope_args = array();
/**
* Plugins can hook here to set their activity arguments for custom scopes.
*
* This is a dynamic filter based on the activity scope. eg:
* - 'bp_activity_set_groups_scope_args'
* - 'bp_activity_set_friends_scope_args'
*
* To see how this filter is used, plugin devs should check out:
* - bp_groups_filter_activity_scope() - used for 'groups' scope
* - bp_friends_filter_activity_scope() - used for 'friends' scope
*
* @since 2.2.0
*
* @param array {
* Activity query clauses.
* @type array {
* Activity arguments for your custom scope.
* See {@link BP_Activity_Query::_construct()} for more details.
* }
* @type array $override Optional. Override existing activity arguments passed by $r.
* }
* @param array $r Current activity arguments passed in BP_Activity_Activity::get().
*/
$scope_args = apply_filters("bp_activity_set_{$scope}_scope_args", array(), $r);
if (!empty($scope_args)) {
// Merge override properties from other scopes
// this might be a problem...
if (!empty($scope_args['override'])) {
$override = array_merge($override, $scope_args['override']);
unset($scope_args['override']);
}
// Save scope args.
if (!empty($scope_args)) {
$query_args[] = $scope_args;
}
}
}
if (!empty($query_args)) {
// Set relation to OR.
$query_args['relation'] = 'OR';
$query = new BP_Activity_Query($query_args);
$sql = $query->get_sql();
if (!empty($sql)) {
$retval['sql'] = $sql;
}
}
if (!empty($override)) {
$retval['override'] = $override;
}
return $retval;
}
/**
* Access protection in the activity feed.
*
* Users should not see activity related to papers to which they do not have access.
*/
function cacsp_access_protection_for_activity_feed($where_conditions)
{
$protected_paper_ids = cacsp_get_protected_papers_for_user(bp_loggedin_user_id());
if (!$protected_paper_ids) {
return $where_conditions;
}
// DeMorgan says: A & B == ( ! A || ! B )
$activity_query = new BP_Activity_Query(array('relation' => 'OR', array('column' => 'type', 'value' => array('new_cacsp_post', 'new_cacsp_comment', 'new_cacsp_edit', 'cacsp_paper_added_to_group'), 'compare' => 'NOT IN'), array('column' => 'secondary_item_id', 'value' => $protected_paper_ids, 'compare' => 'NOT IN')));
$aq_sql = $activity_query->get_sql();
if ($aq_sql) {
$where_conditions[] = $aq_sql;
}
return $where_conditions;
}
