old/application/controllers/Projects.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

use Coduo\PHPHumanizer\DateTimeHumanizer;

class Projects extends MY_Controller
{

    public function __construct()
    {
        parent::__construct('projects');
        $this->load->model('ProjectsModel', '', TRUE);
    }

    public function index($album = 'all')
    {
        $categories = $this->ProjectsModel->getCategories($album);
        $content = $this->ProjectsModel->getEntries('all');

        $this->load->view('header', ['active' => 'projects', 'title' => lang('projects_sitetitle'), 'additionalStyles' => ['sortlist.css', 'projects.css']]);
        $this->load->view('projects', ['content' => $content, 'album' => $album, 'categories' => $categories]);
        $this->load->view('footer', ['additionalScripts' => ['lib/isotope.pkgd.min.js', 'projects.js']]);
    }

    public function entry($entry = null)
    {
        if ($entry == null) {
            redirect(base_url('projects'));
        } else {
            if ($this->ProjectsModel->checkIfNameExists($entry)) {
                $data = $this->ProjectsModel->getEntryByName($entry, $_SESSION['site_lang']);
                $timecreated = strtotime($data['datetime']);
                $data['time_existing'] = DateTimeHumanizer::difference(new \DateTime(), new \DateTime("@$timecreated"), $_SESSION['site_lang']);

                $voteCount = $this->ProjectsModel->getVoteCount($data['ID']);
                $voteType = 0;
                if (isset($_SESSION['user']['ID']))
                    $voteType = $this->ProjectsModel->getUserVoteType($data['ID'], $_SESSION['user']['ID']);
                $prevProject = $this->ProjectsModel->getPrevProject($data['ID']);
                $nextProject = $this->ProjectsModel->getNextProject($data['ID']);

                $this->load->view('header', ['active' => 'projects', 'title' => $data['title'] . ' - ' . lang('projects_sitetitle'), 'additionalStyles' => ['project_entry.css']]);
                $this->load->view('projects_entry', ['data' => $data, 'voteCount' => $voteCount, 'voteType' => $voteType, 'prevProject' => $prevProject, 'nextProject' => $nextProject]);
                $this->load->view('footer', ['additionalScripts' => ['project-entry.js']]);
            }
        }
    }

    public function getEntries()
    {
        $items = $this->ProjectsModel->getEntries('all');
        var_dump($items);
        foreach ($items as $item) {
            var_dump($item);
            $this->load->view('projects_list_entry', $item);
        }
    }

    public function addVote()
    {
        header('Content-Type: text/json');
        if (!isset($_SESSION['user']) || empty($_SESSION['user'])) {
            $result = ['type' => 'error', 'msg' => 'Du musst eingeloggt sein, um dieses Projekt zu bewerten.'];
            echo json_encode($result);
            exit;
        }

        $projectID = $this->input->post('id');
        $voteType = $this->input->post('type');

        if (!isset($projectID) || !isset($voteType)) {
            $result = ['type' => 'error', 'msg' => 'Es ist ein unbekannter Fehler aufgetreten.'];
            echo json_encode($result);
            exit;
        }

        $projectID = intval($projectID);
        $voteType = intval($voteType);

        if ($voteType < 0)
            $voteType = -1;
        else
            $voteType = 1;

        $this->ProjectsModel->addVote($projectID, $_SESSION['user']['ID'], $voteType);
        $voteCount = $this->ProjectsModel->getVoteCount($projectID);

        $result = ['type' => 'success', 'msg' => 'Vielen Dank für deine Bewertung.', 'voteCount' => $voteCount];
        echo json_encode($result);
    }
}