/**
* Push `PhotoResult` item to an array/iterator
*
* @param array|\Iterator $haystack List of items
* @param array $keys Key names containing photo ID
* @param callable $callback (Optional) Callback to use for building
* items to push into the array
* @param array $options Photo options
* @see build()
* @throws \InvalidArgumentException
*/
public function push(&$haystack, array $keys = array(), \Closure $callback = null, array $options = array())
{
if (!is_array($haystack)) {
throw new \InvalidArgumentException(sprintf('Argument 1 passed to %s must be an array', __METHOD__));
}
// Generate an array of index that will be pushed to the original array.
// If no key is set, by convention, we look for `photo_id`
$keys = empty($keys) ? array('photo_id' => 'photo') : $keys;
foreach ($keys as $index => $name) {
if (is_int($index)) {
unset($keys[$index]);
$keys[$name] = substr($name, 0, -3);
// Remove '_id'
}
}
if ($callback == null) {
$callback = function (&$item, $photo, $name) use($keys) {
$item[$name] = $photo;
return $item;
};
}
if (array_values($haystack) === $haystack) {
// This array is a list
foreach ($keys as $index => $name) {
// Get list of photo ids
$ids = ArrayUtils::arrayColumn($haystack, $index);
$photos = $this->collection($ids, $options);
foreach ($haystack as $key => $item) {
$callback($haystack[$key], $photos->get($key), $name, $index);
}
}
} else {
foreach ($keys as $index => $name) {
$photo = $this->get($haystack[$index], $options);
$callback($haystack, $photo, $name, $index);
}
}
}
