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<?php
namespace Drupal\user;
use Drupal\Core\Database\Connection;
/**
* Defines the user data service.
*/
class UserData implements UserDataInterface {
/**
* The database connection to use.
*
* @var \Drupal\Core\Database\Connection
*/
protected $connection;
/**
* Constructs a new user data service.
*
* @param \Drupal\Core\Database\Connection $connection
* The database connection to use.
*/
public function __construct(Connection $connection) {
$this->connection = $connection;
}
/**
* {@inheritdoc}
*/
public function get($module, $uid = NULL, $name = NULL) {
$query = $this->connection->select('users_data', 'ud')
->fields('ud')
->condition('module', $module);
if (isset($uid)) {
$query->condition('uid', $uid);
}
if (isset($name)) {
$query->condition('name', $name);
}
$result = $query->execute();
// If $module, $uid, and $name was passed, return the value.
if (isset($name) && isset($uid)) {
$result = $result->fetchAllAssoc('uid');
if (isset($result[$uid])) {
return $result[$uid]->serialized ? unserialize($result[$uid]->value) : $result[$uid]->value;
}
return NULL;
}
// If $module and $uid was passed, return the name/value pairs.
elseif (isset($uid)) {
$return = [];
foreach ($result as $record) {
$return[$record->name] = ($record->serialized ? unserialize($record->value) : $record->value);
}
return $return;
}
// If $module and $name was passed, return the uid/value pairs.
elseif (isset($name)) {
$return = [];
foreach ($result as $record) {
$return[$record->uid] = ($record->serialized ? unserialize($record->value) : $record->value);
}
return $return;
}
// If only $module was passed, return data keyed by uid and name.
else {
$return = [];
foreach ($result as $record) {
$return[$record->uid][$record->name] = ($record->serialized ? unserialize($record->value) : $record->value);
}
return $return;
}
}
/**
* {@inheritdoc}
*/
public function set($module, $uid, $name, $value) {
$serialized = 0;
if (!is_scalar($value)) {
$value = serialize($value);
$serialized = 1;
}
$this->connection->merge('users_data')
->keys([
'uid' => $uid,
'module' => $module,
'name' => $name,
])
->fields([
'value' => $value,
'serialized' => $serialized,
])
->execute();
}
/**
* {@inheritdoc}
*/
public function delete($module = NULL, $uid = NULL, $name = NULL) {
$query = $this->connection->delete('users_data');
// Cast scalars to array so we can consistently use an IN condition.
if (isset($module)) {
$query->condition('module', (array) $module, 'IN');
}
if (isset($uid)) {
$query->condition('uid', (array) $uid, 'IN');
}
if (isset($name)) {
$query->condition('name', (array) $name, 'IN');
}
$query->execute();
}
}