public function sync($ids, $detaching = true)
{
$changes = [
'attached' => [], 'detached' => [], 'updated' => [],
];
// First we need to attach any of the associated models that are not currently
// in this joining table. We'll spin through the given IDs, checking to see
// if they exist in the array of current ones, and if not we will insert.
$current = $this->getCurrentlyAttachedPivots()
->pluck($this->relatedPivotKey)->all();
$detach = array_diff($current, array_keys(
$records = $this->formatRecordsList($this->parseIds($ids))
));
// Next, we will take the differences of the currents and given IDs and detach
// all of the entities that exist in the "current" array but are not in the
// array of the new IDs given to the method which will complete the sync.
if ($detaching && count($detach) > 0) {
$this->detach($detach);
$changes['detached'] = $this->castKeys($detach);
}
// Now we are finally ready to attach the new records. Note that we'll disable
// touching until after the entire operation is complete so we don't fire a
// ton of touch operations until we are totally done syncing the records.
$changes = array_merge(
$changes, $this->attachNew($records, $current, false)
);
// Once we have finished attaching or detaching the records, we will see if we
// have done any attaching or detaching, and if we have we will touch these
// relationships if they are configured to touch on any database updates.
if (count($changes['attached']) ||
count($changes['updated'])) {
$this->touchIfTouching();
}
return $changes;
}что делать если он почту там поменял или фио, как мне об этом узнать
не бегать же каждый раз куда-то далеко за этими данными...