BookStack/app/Repos/ChapterRepo.php
2015-11-21 18:11:46 +00:00

159 lines
4.0 KiB
PHP

<?php namespace BookStack\Repos;
use Activity;
use Illuminate\Support\Str;
use BookStack\Chapter;
class ChapterRepo
{
protected $chapter;
/**
* ChapterRepo constructor.
* @param $chapter
*/
public function __construct(Chapter $chapter)
{
$this->chapter = $chapter;
}
/**
* Check if an id exists.
* @param $id
* @return bool
*/
public function idExists($id)
{
return $this->chapter->where('id', '=', $id)->count() > 0;
}
/**
* Get a chapter by a specific id.
* @param $id
* @return mixed
*/
public function getById($id)
{
return $this->chapter->findOrFail($id);
}
/**
* Get all chapters.
* @return \Illuminate\Database\Eloquent\Collection|static[]
*/
public function getAll()
{
return $this->chapter->all();
}
/**
* Get a chapter that has the given slug within the given book.
* @param $slug
* @param $bookId
* @return mixed
*/
public function getBySlug($slug, $bookId)
{
return $this->chapter->where('slug', '=', $slug)->where('book_id', '=', $bookId)->first();
}
/**
* Create a new chapter from request input.
* @param $input
* @return $this
*/
public function newFromInput($input)
{
return $this->chapter->fill($input);
}
/**
* Destroy a chapter and its relations by providing its slug.
* @param Chapter $chapter
*/
public function destroy(Chapter $chapter)
{
if (count($chapter->pages) > 0) {
foreach ($chapter->pages as $page) {
$page->chapter_id = 0;
$page->save();
}
}
Activity::removeEntity($chapter);
$chapter->views()->delete();
$chapter->delete();
}
/**
* Check if a chapter's slug exists.
* @param $slug
* @param $bookId
* @param bool|false $currentId
* @return bool
*/
public function doesSlugExist($slug, $bookId, $currentId = false)
{
$query = $this->chapter->where('slug', '=', $slug)->where('book_id', '=', $bookId);
if ($currentId) {
$query = $query->where('id', '!=', $currentId);
}
return $query->count() > 0;
}
/**
* Finds a suitable slug for the provided name.
* Checks database to prevent duplicate slugs.
* @param $name
* @param $bookId
* @param bool|false $currentId
* @return string
*/
public function findSuitableSlug($name, $bookId, $currentId = false)
{
$slug = Str::slug($name);
while ($this->doesSlugExist($slug, $bookId, $currentId)) {
$slug .= '-' . substr(md5(rand(1, 500)), 0, 3);
}
return $slug;
}
/**
* Get chapters by the given search term.
* @param $term
* @param array $whereTerms
* @return mixed
*/
public function getBySearch($term, $whereTerms = [])
{
$terms = explode(' ', preg_quote(trim($term)));
$chapters = $this->chapter->fullTextSearch(['name', 'description'], $terms, $whereTerms);
$words = join('|', $terms);
foreach ($chapters as $chapter) {
//highlight
$result = preg_replace('#' . $words . '#iu', "<span class=\"highlight\">\$0</span>", $chapter->getExcerpt(100));
$chapter->searchSnippet = $result;
}
return $chapters;
}
/**
* Changes the book relation of this chapter.
* @param $bookId
* @param Chapter $chapter
* @return Chapter
*/
public function changeBook($bookId, Chapter $chapter)
{
$chapter->book_id = $bookId;
foreach ($chapter->activity as $activity) {
$activity->book_id = $bookId;
$activity->save();
}
$chapter->slug = $this->findSuitableSlug($chapter->name, $bookId, $chapter->id);
$chapter->save();
return $chapter;
}
}