Based on https://github.com/laravel/framework/blob/5.0/src/Illuminate/Support/Arr.php
protected function sortItemsByAttribute(array $items, $attribute, $sortType)
{
$arr = new ArrayWrapper($items);
$callback = function ($key, ItemInterface $item) use($attribute) {
$attributes = $item->getAttributes();
return isset($attributes[$attribute]) === true ? $attributes[$attribute] : null;
};
return $arr->sortBy($callback, null, SORT_REGULAR, $sortType === 'descending');
}
/**
* Sorts items in this collection.
* e.g:.
*
* ```
* $itemCollection = new ItemCollection();
* // warm-up...
* $items = $itemCollection->sortItems('date', true)->all();
* ```
*
* @param string $attribute The name of the attribute used to sort
* @param bool $descending Is descending sort?
* @param string[] $collections Only the items belong to Collections will be affected
*
* @return Yosymfony\Spress\Core\Support\ItemCollection An intance of itself
*/
public function sortItems($attribute, $descending = true, array $collections = [])
{
$itemCollections = $this->all($collections, true);
$callback = function ($key, ItemInterface $item) use($attribute) {
$attributes = $item->getAttributes();
return isset($attributes[$attribute]) === true ? $attributes[$attribute] : null;
};
foreach ($itemCollections as $collection => $items) {
$arr = new ArrayWrapper($items);
$itemsSorted = $arr->sortBy($callback, null, SORT_REGULAR, $descending);
$this->itemCollections[$collection] = $itemsSorted;
}
$this->items = [];
foreach ($this->itemCollections as $collection => $items) {
$this->items = array_merge($this->items, $items);
}
return $this;
}
public function testWhere()
{
$data = [];
$a = new ArrayWrapper(['value1' => 1, 'value2' => 2]);
$filtered = $a->where(function ($key, $value) {
return $value > 1;
});
$this->assertCount(1, $filtered);
}
/**
* @inheritDoc
*
* @throws Yosymfony\Spress\Core\Exception\AttributeValueException if bad attribute value.
*/
public function generateItems(ItemInterface $templateItem, array $collections)
{
$result = [];
$options = $this->getAttributesResolver($templateItem);
if ($options['max_page'] < 1) {
throw new AttributeValueException('Items per page value must be great than 0.', 'max_page', $templateItem->getPath(ItemInterface::SNAPSHOT_PATH_RELATIVE));
}
$arr = new ArrayWrapper($collections);
$providerName = $this->providerToCollection($options['provider']);
if ($arr->has($providerName) === false || is_array($provider = $arr->get($providerName)) === false) {
throw new AttributeValueException(sprintf('Provider: "%s" for pagination not found.', $options['provider']), 'provider', $templateItem->getPath(ItemInterface::SNAPSHOT_PATH_RELATIVE));
}
$arr->setArray($provider);
$pages = $arr->paginate($options['max_page']);
$totalPages = count($pages);
$totalItems = count($provider);
$templatePath = dirname($templateItem->getPath(Item::SNAPSHOT_PATH_RELATIVE));
if ($templatePath === '.') {
$templatePath = '';
}
foreach ($pages as $page => $items) {
$previousPage = $page > 1 ? $page - 1 : null;
$previousPagePath = $this->getPageRelativePath($templatePath, $options['permalink'], $previousPage);
$previousPageUrl = $this->getPagePermalink($previousPagePath);
$nextPage = $page === $totalPages ? null : $page + 1;
$nextPagePath = $this->getPageRelativePath($templatePath, $options['permalink'], $nextPage);
$nextPageUrl = $this->getPagePermalink($nextPagePath);
$pageAttr = new ArrayWrapper($templateItem->getAttributes());
$pageAttr->set('pagination.per_page', $options['max_page']);
$pageAttr->set('pagination.total_items', $totalItems);
$pageAttr->set('pagination.total_pages', $totalPages);
$pageAttr->set('pagination.page', $page);
$pageAttr->set('pagination.previous_page', $previousPage);
$pageAttr->set('pagination.previous_page_path', $previousPagePath);
$pageAttr->set('pagination.previous_page_url', $previousPageUrl);
$pageAttr->set('pagination.next_page', $nextPage);
$pageAttr->set('pagination.next_page_path', $nextPagePath);
$pageAttr->set('pagination.next_page_url', $nextPageUrl);
$pageAttr->remove('permalink');
$pagePath = $this->getPageRelativePath($templatePath, $options['permalink'], $page);
$permalink = $this->getPagePermalink($pagePath);
$item = new PaginationItem($templateItem->getContent(), $pagePath, $pageAttr->getArray());
$item->setPageItems($items);
$item->setPath($pagePath, Item::SNAPSHOT_PATH_RELATIVE);
$item->setPath($permalink, Item::SNAPSHOT_PATH_PERMALINK);
$result[] = $item;
}
return $result;
}
