128 lines
4.2 KiB
PHP
128 lines
4.2 KiB
PHP
<?php
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namespace BookStack\Actions;
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use BookStack\Auth\Permissions\PermissionService;
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use BookStack\Entities\Models\Entity;
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use Illuminate\Database\Eloquent\Builder;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Facades\DB;
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class TagRepo
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{
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protected $tag;
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protected $permissionService;
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public function __construct(PermissionService $ps)
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{
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$this->permissionService = $ps;
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}
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/**
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* Start a query against all tags in the system.
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*/
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public function queryWithTotals(string $searchTerm, string $nameFilter): Builder
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{
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$groupingAttribute = $nameFilter ? 'value' : 'name';
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$query = Tag::query()
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->select([
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'name',
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($searchTerm || $nameFilter) ? 'value' : DB::raw('COUNT(distinct value) as `values`'),
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DB::raw('COUNT(id) as usages'),
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DB::raw('SUM(IF(entity_type = \'BookStack\\\\Page\', 1, 0)) as page_count'),
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DB::raw('SUM(IF(entity_type = \'BookStack\\\\Chapter\', 1, 0)) as chapter_count'),
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DB::raw('SUM(IF(entity_type = \'BookStack\\\\Book\', 1, 0)) as book_count'),
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DB::raw('SUM(IF(entity_type = \'BookStack\\\\BookShelf\', 1, 0)) as shelf_count'),
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])
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->groupBy($groupingAttribute)
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->orderBy($groupingAttribute);
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if ($nameFilter) {
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$query->where('name', '=', $nameFilter);
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}
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if ($searchTerm) {
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$query->where(function (Builder $query) use ($searchTerm) {
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$query->where('name', 'like', '%' . $searchTerm . '%')
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->orWhere('value', 'like', '%' . $searchTerm . '%');
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});
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}
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return $this->permissionService->filterRestrictedEntityRelations($query, 'tags', 'entity_id', 'entity_type');
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}
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/**
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* Get tag name suggestions from scanning existing tag names.
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* If no search term is given the 50 most popular tag names are provided.
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*/
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public function getNameSuggestions(?string $searchTerm): Collection
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{
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$query = Tag::query()
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->select('*', DB::raw('count(*) as count'))
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->groupBy('name');
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if ($searchTerm) {
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$query = $query->where('name', 'LIKE', $searchTerm . '%')->orderBy('name', 'desc');
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} else {
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$query = $query->orderBy('count', 'desc')->take(50);
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}
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$query = $this->permissionService->filterRestrictedEntityRelations($query, 'tags', 'entity_id', 'entity_type');
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return $query->get(['name'])->pluck('name');
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}
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/**
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* Get tag value suggestions from scanning existing tag values.
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* If no search is given the 50 most popular values are provided.
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* Passing a tagName will only find values for a tags with a particular name.
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*/
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public function getValueSuggestions(?string $searchTerm, ?string $tagName): Collection
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{
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$query = Tag::query()
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->select('*', DB::raw('count(*) as count'))
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->groupBy('value');
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if ($searchTerm) {
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$query = $query->where('value', 'LIKE', $searchTerm . '%')->orderBy('value', 'desc');
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} else {
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$query = $query->orderBy('count', 'desc')->take(50);
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}
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if ($tagName) {
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$query = $query->where('name', '=', $tagName);
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}
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$query = $this->permissionService->filterRestrictedEntityRelations($query, 'tags', 'entity_id', 'entity_type');
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return $query->get(['value'])->pluck('value');
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}
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/**
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* Save an array of tags to an entity.
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*/
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public function saveTagsToEntity(Entity $entity, array $tags = []): iterable
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{
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$entity->tags()->delete();
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$newTags = collect($tags)->filter(function ($tag) {
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return boolval(trim($tag['name']));
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})->map(function ($tag) {
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return $this->newInstanceFromInput($tag);
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})->all();
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return $entity->tags()->saveMany($newTags);
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}
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/**
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* Create a new Tag instance from user input.
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* Input must be an array with a 'name' and an optional 'value' key.
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*/
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protected function newInstanceFromInput(array $input): Tag
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{
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return new Tag([
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'name' => trim($input['name']),
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'value' => trim($input['value'] ?? ''),
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]);
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}
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}
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