* @throws \LengthException
*/
Collection::macro('transpose', function () : Collection {
$values = $this->values();
$expectedLength = count($this->first());
$diffLength = count(array_intersect_key(...$values));
if ($expectedLength !== $diffLength) {
throw new \LengthException("Element's length must be equal.");
}
$items = array_map(function (...$items) {
return new static($items);
}, ...$values);
return new static($items);
});
}
if (!Collection::hasMacro('partition')) {
/*
* Output a collection with two elements. Items in the first element did pass
* the given $callback, items in the second element did not.
*
* @param callable $callback
*
* @return \Illuminate\Support\Collection
*/
Collection::macro('partition', function (callable $callback) : Collection {
$partitions = [new static(), new static()];
foreach ($this->items as $item) {
$partitions[!(int) $callback($item)][] = $item;
}
return new static($partitions);
});
});
}
if (!Collection::hasMacro('toEloquent')) {
/**
* Get a Database Eloquent collection instance from this collection.
* Filters out any items that are not Models.
*
* @return \Illuminate\Database\Eloquent\Collection
*/
Collection::macro('toEloquent', function () {
return EloquentCollection::make($this->filter(function ($item) {
return $item instanceof Model;
})->all());
});
}
if (!Collection::hasMacro('transpose')) {
/**
* Transpose a collection. Rows become columns, columns become rows.
* E.g. becomes
* [1,2] [1,3]
* [3,4] [2,4]
*
* @return \Illuminate\Support\Collection
*/
Collection::macro('transpose', function () {
$type = get_class($this);
return $type::make(array_map(function (...$items) {
return $items;
}, ...$this->values()));
});
}
