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137 lines
3.6 KiB
PHP
137 lines
3.6 KiB
PHP
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<?php namespace BookStack\Entities;
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use Illuminate\Http\Request;
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class SearchOptions
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{
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/**
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* @var array
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*/
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public $searches = [];
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/**
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* @var array
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*/
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public $exacts = [];
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/**
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* @var array
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*/
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public $tags = [];
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/**
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* @var array
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*/
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public $filters = [];
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/**
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* Create a new instance from a search string.
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*/
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public static function fromString(string $search): SearchOptions
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{
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$decoded = static::decode($search);
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$instance = new static();
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foreach ($decoded as $type => $value) {
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$instance->$type = $value;
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}
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return $instance;
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}
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/**
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* Create a new instance from a request.
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* Will look for a classic string term and use that
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* Otherwise we'll use the details from an advanced search form.
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*/
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public static function fromRequest(Request $request): SearchOptions
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{
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if ($request->has('term')) {
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return static::fromString($request->get('term'));
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}
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$instance = new static();
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$inputs = $request->only(['search', 'types', 'filters', 'exact', 'tags']);
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$instance->searches = explode(' ', $inputs['search'] ?? []);
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$instance->exacts = array_filter($inputs['exact'] ?? []);
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$instance->tags = array_filter($inputs['tags'] ?? []);
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foreach (($inputs['filters'] ?? []) as $filterKey => $filterVal) {
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if (empty($filterVal)) {
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continue;
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}
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$instance->filters[$filterKey] = $filterVal === 'true' ? '' : $filterVal;
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}
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if (isset($inputs['types']) && count($inputs['types']) < 4) {
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$instance->filters['type'] = implode('|', $inputs['types']);
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}
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return $instance;
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}
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/**
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* Decode a search string into an array of terms.
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*/
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protected static function decode(string $searchString): array
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{
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$terms = [
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'searches' => [],
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'exacts' => [],
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'tags' => [],
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'filters' => []
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];
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$patterns = [
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'exacts' => '/"(.*?)"/',
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'tags' => '/\[(.*?)\]/',
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'filters' => '/\{(.*?)\}/'
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];
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// Parse special terms
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foreach ($patterns as $termType => $pattern) {
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$matches = [];
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preg_match_all($pattern, $searchString, $matches);
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if (count($matches) > 0) {
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$terms[$termType] = $matches[1];
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$searchString = preg_replace($pattern, '', $searchString);
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}
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}
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// Parse standard terms
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foreach (explode(' ', trim($searchString)) as $searchTerm) {
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if ($searchTerm !== '') {
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$terms['searches'][] = $searchTerm;
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}
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}
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// Split filter values out
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$splitFilters = [];
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foreach ($terms['filters'] as $filter) {
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$explodedFilter = explode(':', $filter, 2);
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$splitFilters[$explodedFilter[0]] = (count($explodedFilter) > 1) ? $explodedFilter[1] : '';
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}
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$terms['filters'] = $splitFilters;
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return $terms;
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}
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/**
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* Encode this instance to a search string.
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*/
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public function toString(): string
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{
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$string = implode(' ', $this->searches ?? []);
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foreach ($this->exacts as $term) {
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$string .= ' "' . $term . '"';
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}
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foreach ($this->tags as $term) {
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$string .= " [{$term}]";
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}
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foreach ($this->filters as $filterName => $filterVal) {
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$string .= ' {' . $filterName . ($filterVal ? ':' . $filterVal : '') . '}';
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}
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return $string;
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}
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}
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