BookStack/app/Repos/BookRepo.php
2017-01-01 16:57:47 +00:00

139 lines
No EOL
4.3 KiB
PHP

<?php namespace BookStack\Repos;
use BookStack\Book;
class BookRepo extends EntityRepo
{
protected $pageRepo;
protected $chapterRepo;
/**
* BookRepo constructor.
* @param PageRepo $pageRepo
* @param ChapterRepo $chapterRepo
*/
public function __construct(PageRepo $pageRepo, ChapterRepo $chapterRepo)
{
$this->pageRepo = $pageRepo;
$this->chapterRepo = $chapterRepo;
parent::__construct();
}
/**
* Get a new book instance from request input.
* @param array $input
* @return Book
*/
public function createFromInput($input)
{
$book = $this->book->newInstance($input);
$book->slug = $this->findSuitableSlug('book', $book->name);
$book->created_by = user()->id;
$book->updated_by = user()->id;
$book->save();
$this->permissionService->buildJointPermissionsForEntity($book);
return $book;
}
/**
* Update the given book from user input.
* @param Book $book
* @param $input
* @return Book
*/
public function updateFromInput(Book $book, $input)
{
if ($book->name !== $input['name']) {
$book->slug = $this->findSuitableSlug('book', $input['name'], $book->id);
}
$book->fill($input);
$book->updated_by = user()->id;
$book->save();
$this->permissionService->buildJointPermissionsForEntity($book);
return $book;
}
/**
* Destroy the given book.
* @param Book $book
* @throws \Exception
*/
public function destroy(Book $book)
{
foreach ($book->pages as $page) {
$this->pageRepo->destroy($page);
}
foreach ($book->chapters as $chapter) {
$this->chapterRepo->destroy($chapter);
}
$book->views()->delete();
$book->permissions()->delete();
$this->permissionService->deleteJointPermissionsForEntity($book);
$book->delete();
}
/**
* Get the next child element priority.
* @param Book $book
* @return int
*/
public function getNewPriority($book)
{
$lastElem = $this->getChildren($book)->pop();
return $lastElem ? $lastElem->priority + 1 : 0;
}
/**
* Get all child objects of a book.
* Returns a sorted collection of Pages and Chapters.
* Loads the book slug onto child elements to prevent access database access for getting the slug.
* @param Book $book
* @param bool $filterDrafts
* @return mixed
*/
public function getChildren(Book $book, $filterDrafts = false)
{
$pageQuery = $book->pages()->where('chapter_id', '=', 0);
$pageQuery = $this->permissionService->enforcePageRestrictions($pageQuery, 'view');
if ($filterDrafts) {
$pageQuery = $pageQuery->where('draft', '=', false);
}
$pages = $pageQuery->get();
$chapterQuery = $book->chapters()->with(['pages' => function ($query) use ($filterDrafts) {
$this->permissionService->enforcePageRestrictions($query, 'view');
if ($filterDrafts) $query->where('draft', '=', false);
}]);
$chapterQuery = $this->permissionService->enforceChapterRestrictions($chapterQuery, 'view');
$chapters = $chapterQuery->get();
$children = $pages->values();
foreach ($chapters as $chapter) {
$children->push($chapter);
}
$bookSlug = $book->slug;
$children->each(function ($child) use ($bookSlug) {
$child->setAttribute('bookSlug', $bookSlug);
if ($child->isA('chapter')) {
$child->pages->each(function ($page) use ($bookSlug) {
$page->setAttribute('bookSlug', $bookSlug);
});
$child->pages = $child->pages->sortBy(function ($child, $key) {
$score = $child->priority;
if ($child->draft) $score -= 100;
return $score;
});
}
});
// Sort items with drafts first then by priority.
return $children->sortBy(function ($child, $key) {
$score = $child->priority;
if ($child->isA('page') && $child->draft) $score -= 100;
return $score;
});
}
}