app/Http/Controllers/SnippetController.php

<?php namespace App\Http\Controllers;

use App\Http\Requests;
use App\Http\Controllers\Controller;
use App\Snippet;
use App\User;
use App\Comment;
use App\Repository\ElasticSearchSnippetRepository;
use Illuminate\Http\Request;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Auth;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Pagination\Paginator;
use Illuminate\Pagination\LengthAwarePaginator;
use App\Utillity\NotificationTrait;

class SnippetController extends Controller
{

    use NotificationTrait;

    private $snippet;

    public function __construct(Snippet $snippet)
    {
        $this->snippet = $snippet;
        $this->middleware('auth');
    }

    /**
     * Display a listing of the resource.
     *
     * @return Response
     */
    public function index()
    {
        $snippets = $this->snippet->all();
        return view('home')->with(compact('snippets'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return Response
     */
    public function create()
    {
        $isWeeklyReport = \Session::get('isWeeklyReport');
        $template = \Session::get('template');
//        $oneBeforeSnippetRow = User::getSnippets(Auth::user()->id, 1);
//        if (!empty($oneBeforeSnippetRow)) {
//            $parser = new \cebe\markdown\GithubMarkdown();
//            $oneBeforeSnippet = $parser->parse($oneBeforeSnippetRow[0]->body);
//        }
        if($isWeeklyReport) {
            return view('snippet/create')->with(compact('isWeeklyReport', 'template'));
        }
        return view('snippet/create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @return Response
     */
    public function store(Request $request)
    {
        $input =  $request->all();
        if(array_key_exists('selected-tags', $input)) {
            $input['user_id'] = Auth::user()->id;
            $this->snippet->fill($input);
            $this->snippet->save();
            // スニペットにタグを紐付ける
            $snippet = Snippet::find($this->snippet->id);
            $snippet->tags()->attach($input['selected-tags']);

            return redirect()->to("/snippet/{$this->snippet->id}");
        } else {
            \Session::flash('snippetFormError', '必ずタグを選択してください');
            $request->flashOnly('title', 'body');
            return redirect()->back()->withInput();
        }
    }

    /**
     * Display the specified resource.
     *
     * @param  int $id
     * @return Response
     */
    public function show($id)
    {
        $parser = new \cebe\markdown\GithubMarkdown();
        $query = \Request::query();

        try {

            if (array_key_exists('read', $query)) $this->isNtyChecked($query['nty']);
            $snippet = $this->snippet->findOrFail($id);
            $comments = Comment::commentList($id);
            $stocksAndComments = $this->snippet->stocksAndCommentsCount($id);
            $popularSnippets = User::getMyPopularSnippets($snippet['user_id']);

            $parsedComment = array_map(function ($comment) use ($parser) {
                $comment->parsedComment = $parser->parse($comment->comment);
                return $comment;
            }, $comments);

            $markdown = $parser->parse($snippet->body);
            $snippet['body'] = $markdown;
            return view('snippet.show')->with(compact('snippet', 'parsedComment', 'stocksAndComments', 'popularSnippets'));

        } catch(ModelNotFoundException $e){
            return \Response::view('errors.404', [], '404');
        }
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int $id
     * @return Response
     */
    public function edit($id)
    {
        $snippet = $this->snippet->find($id);
        if ($snippet->user_id === Auth::user()->id) {
            return view('snippet.edit')->with(compact('snippet'));
        }
        return redirect()->back();
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  int $id
     * @return Response
     */
    public function update(Request $request, $id)
    {
        $input = $request->all();
        if(array_key_exists('selected-tags', $input)) {
            $this->snippet->where('id', $id)->update(['title' => $input['title'], 'body' => $input['body']]);
            // スニペットにタグを紐付ける
            $snippet = Snippet::find($id);
            $snippet->tags()->detach();
            $snippet->tags()->attach($input['selected-tags']);

            return redirect()->to("/snippet/$id");
        } else {
            \Session::flash('snippetFormError', '必ずタグを選択してください');
            $request->flashOnly('title', 'body');
            return redirect()->back()->withInput();
        }

    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int $id
     * @return Response
     */
    public function destroy($id)
    {
        $data = $this->snippet->find($id);
        $data->delete();
        $data->tags()->detach();

        return redirect()->to('/');
    }

    /**
     * 「週報」リンクから遷移してきたときにパラメータを渡すためリダイレクトする
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function weeklyReportTemplate()
    {
        $isWeeklyReport = true;
        $template = <<< EOS
#### 今週の学習時間
***
ここに書いて下さい

<br>
#### 学習している内容
***


<br>
#### 来週の学習予定時間
***


<br>
#### 来週の学習予定の内容
***


<br>
#### 今週の業務内容
***


<br>
#### 所感
***


<br>
EOS;

        return redirect()->to('/snippet/create')->with(compact('isWeeklyReport', 'template'));
    }

    public function mypage()
    {
        return view('auth.mypage');
    }

    /**
     * ElasticSearchで全文検索
     * @return $this
     */
    public function searchOnES()
    {
        $name = \Input::get('q');
        $es = new ElasticSearchSnippetRepository();
        $query = $es->search($name);
        $count = $query['hits']['total'];

        if($query['hits']['total'] > 0) {
            $hitList = $query['hits']['hits'];
            $perPage = 20;
//            $paginatedSearchResults =  new LengthAwarePaginator($hitList, $query['hits']['total'], $perPage);

            $chunk_articles = array_chunk($hitList, $perPage);
            $current_page = \Input::get('page', 1);
            $paginatedSearchResults = new LengthAwarePaginator($chunk_articles [$current_page - 1], count($hitList), $perPage);

//            $currentPage = LengthAwarePaginator::resolveCurrentPage();
//            $collection = new Collection($hitList);
//
//            $currentPageSearchResults = $collection->slice($currentPage * $perPage, $perPage)->all();
//            $paginatedSearchResults = new LengthAwarePaginator($currentPageSearchResults, count($collection), $perPage);

            $paginatedSearchResults->setPath("search");

            return view('snippet.search')->with(compact('paginatedSearchResults', 'name', 'count'));
        }
        return view('snippet.search')->with(compact('name', 'count'));
    }
}