/**
* Search all resources that current user has read access.
*
* NOTE: Even search results are asociated to an user they are persisted
* using CACHE instead of COOKIE because too big search results may lead
* to excesively big HTTP headers resulting in a web server error response.
* When the user logs out an event handler will purge the search results
* from cache.
*
* @return Response
*/
public function search(Request $request)
{
$user = $request->user();
$searchableModels = $this->getSearchableModels($user);
// Validate form
$this->validate($request, ['query' => 'required|min:1', 'sections' => 'required|array|in:' . implode(',', array_keys($searchableModels))]);
// Remove unselected models
$selectedModels = $request->input('sections', []);
foreach ($searchableModels as $permission => $model) {
if (!in_array($permission, $selectedModels)) {
unset($searchableModels[$permission]);
}
}
// Initializate results
$query = addcslashes($request->input('query'), '%_');
// Sanitize for 'LIKE' searches
$session = $request->session();
$currentRoute = $request->route()->getName();
$cacheId = 'adminSearchResults' . $user->getKey();
$results = collect();
$totalResults = 0;
// Perform search for all searchable models
foreach ($searchableModels as $model) {
$collection = $model->search($query);
if (!($count = $collection->count())) {
continue;
}
$totalResults += $count;
$modelName = class_basename($model);
// Build results object
$result = new \stdClass();
$result->label = $model->plural();
$result->route = replace_last_segment($currentRoute, strtolower(str_plural($modelName)) . '.show');
$result->collection = $collection;
$results[$modelName] = $result;
}
// Results found
if ($results->count()) {
// Sort results showing first the models with smaller collections
$results = $results->sort(function ($result1, $result2) {
$count1 = $result1->collection->count();
$count2 = $result2->collection->count();
// Is same count order alphabetically
if ($count1 === $count2) {
return strcasecmp($result1->label, $result2->label);
}
return $count1 < $count2 ? -1 : 1;
});
// Store results in the cache for 5 minutes
Cache::put($cacheId, $results, 5);
$session->flash('success', sprintf(_('%d results found'), $totalResults));
} else {
Cache::forget($cacheId);
$session->flash('error', _('No results found'));
}
return redirect()->route('admin')->withInput();
}
/**
* Display a listing of the resource.
*
* @return Response
*/
public function index()
{
// Paginate resource resutls
$results = $this->paginate();
// If results found add asset to make tables responsive
$results->total();
// Create header links for sorting by column
$links = (object) link_to_sort_by($this->resource->getVisibleLabels());
// Set the route for the return button
$returnRouteName = replace_last_segment($this->prefix);
// Add data to the view
$view = view('resource.index', compact(['results', 'links', 'returnRouteName']));
// Add data to the layout
$this->layout->title = $this->resource->plural();
$this->layout->subtitle = $results->lastPage() > 1 ? sprintf(_('Page %d/%d'), $results->currentPage(), $results->lastPage()) : _('Index');
// Return layout + view
return $this->layout($view);
}
