/**
* Eager loads the provided relations and assigns their data to a data collection
*
* @param DataCollection $dataCollection The data collection on which the eager loaded relations will be applied
* @param array|null $relations The relations to eager load. Leave empty to use the already defined relations
*
* @return $this for chaining
*/
public function eagerLoad(DataCollection &$dataCollection, array $relations = null)
{
if (empty($relations)) {
$relations = $this->eagerRelations;
}
// Apply eager loaded relations
if ($dataCollection->count() && !empty($relations)) {
$relationManager = $this->getRelations();
foreach ($relations as $relation => $callback) {
// Did they give us a relation name without a callback?
if (!is_callable($callback) && is_string($callback) && !empty($callback)) {
$relation = $callback;
$callback = null;
}
$relationData = $relationManager->getData($relation, $callback, $dataCollection);
$foreignKeyMap = $relationManager->getForeignKeyMap($relation);
/** @var DataModel $item */
foreach ($dataCollection as $item) {
$item->getRelations()->setDataFromCollection($relation, $relationData, $foreignKeyMap);
}
}
}
return $this;
}
/**
* Figures out how many items exist per visual group and category type
*
* @param Collection $categories
*
* @return array
*/
public static function getCategoriesPerVisualGroup(Collection $categories)
{
$container = Container::getInstance('com_ars');
// Load visual group definitions
/** @var VisualGroups $vGroupModel */
$vGroupModel = $container->factory->model('VisualGroups')->tmpInstance();
$allVisualGroups = $vGroupModel->published(1)->get(true);
$visualGroups = array();
$defaultVisualGroup = (object) ['id' => 0, 'title' => '', 'description' => '', 'numitems' => ['all' => 0, 'bleedingedge' => 0, 'normal' => 0]];
if ($allVisualGroups->count()) {
/** @var VisualGroups $vGroup */
foreach ($allVisualGroups as $vGroup) {
// Get the number of items per visual group and render section
$noOfItems = ['all' => 0, 'bleedingedge' => 0, 'normal' => 0];
if ($categories->count()) {
/** @var Categories $item */
foreach ($categories as $item) {
$renderSection = $item->type;
if (empty($item->vgroup_id)) {
$defaultVisualGroup->numitems['all']++;
$defaultVisualGroup->numitems[$renderSection]++;
continue;
}
if ($item->vgroup_id != $vGroup->id) {
continue;
}
$noOfItems['all']++;
$noOfItems[$renderSection]++;
}
}
$visualGroups[$vGroup->id] = (object) ['id' => $vGroup->id, 'title' => $vGroup->title, 'description' => $vGroup->description, 'numitems' => $noOfItems];
}
} else {
/** @var Categories $item */
foreach ($categories as $item) {
$renderSection = $item->type;
$defaultVisualGroup->numitems['all']++;
$defaultVisualGroup->numitems[$renderSection]++;
}
}
return array_merge(array($defaultVisualGroup), $visualGroups);
}
