api/api/app/Http/Controllers/NewsController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class NewsController extends Controller
{
    private static $NEWS_CATEGORY = 1;
    private static $CALENDAR_CATEGORY = 42;
    private static $BASE_SQL = <<<QUERY
SELECT `news`.`id`, `content`.`title`, `content`.`content`, `news`.`podcast` AS `podcast_id`, `news`.`video`, `news`.`keywords`, `news`.`titlewithdate`, 
       `news`.`creationdt` AS `published`, `content`.`creator`, `content`.`editingdt` AS `edited`, `content`.`editor`, 
       `news`.`startdt` AS `starts`, `news`.`enddt` AS `ends`,
       `content`.`showsource` AS `showsource`, `sources`.`title` AS `source`, `sources`.`url` AS `source_url`, 
       `themes`.`title` AS `theme`, `themes`.`thumbnail` AS `theme_thumbnail`, `regions`.`title` AS `region`, `regions`.`slug` as `region_slug`
    FROM `news`    
        LEFT JOIN `news_target_content` AS `content` ON `content`.`news` = `news`.`id`
        LEFT JOIN `news_regions` AS `regions` ON  `regions`.`id` = `news`.`region`
        LEFT JOIN `news_sources` AS `sources` ON  `sources`.`id` = `news`.`source`
        LEFT JOIN `news_themes` AS `themes` ON  `themes`.`id` = `news`.`theme`
    WHERE `news`.`category` = :category AND `content`.`target` = 1 AND `news`.`active` = 1 AND `content`.`active` = 1
QUERY;

    private static $LOAD_IMAGES =
        'SELECT `id`, `file`, `description` AS `title` FROM `news_pictures` WHERE `news` = :newsId AND `active` = 1';
 
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
    * Lijst van alle nieuwsberichten
    */
    public function newslist(Request $request, $filter = null) {
	$count = (int)$request->get('aantal', 15);
	$page = (int)$request->get('pagina', 1);
        if($count <= 0 || $page <= 0) {
          return abort(400);
        }
 
        $filterSql = "";
        $params = ['category' => self::$NEWS_CATEGORY];
        if($filter) { 
            foreach($filter as $field => $value) {
                $paramName = preg_replace('/[^A-Za-z0-9]/', '', $field);
                $filterSql .= " AND $field = :$paramName";
                $params[$paramName] = $value;
            }
        }

        $start = ($page - 1) * $count;
        $newsItems = app('db')->select(self::$BASE_SQL
            . $filterSql
            . ' ORDER BY `published` DESC'
            . ' LIMIT ' . (int)$start . ', ' . (int)$count, $params);

        $result = array();
        foreach($newsItems as $newsItem) {
            // Note: content is stored in the database with an additional addslashes() - don't ask why, just remove it :)
            $newsItem->content = $newsItem->content;
            $pictures = app('db')->select(self::$LOAD_IMAGES, ['newsId' => $newsItem->id]);
            $result[] = new \Model\NewsItem($newsItem, $pictures);
        }

        return response()->json(['page' => $page, 'count' => $count, 'news' => $result]);
    }

    public function regionlist(Request $request, $region) {
        return $this->newslist($request, ['`regions`.`slug`' => $region]);
    } 

    /**
    * Agendaberichten ophalen
    */
    public function calendarlist(Request $request) {
      $today = new \DateTime('today');
      $agendaItems = app('db')->select(self::$BASE_SQL
          . ' AND `news`.`enddt` >= :today '
          . ' ORDER BY `news`.`startdt` ASC, `news`.`enddt` ASC', ['category' => self::$CALENDAR_CATEGORY, 'today' => $today]);

        $result = array();
        foreach($agendaItems as $agendaItem) {
            // Note: content is stored in the database with an additional addslashes() - don't ask why, just remove it :)
            $agendaItem->content = $agendaItem->content;
            $pictures = app('db')->select(self::$LOAD_IMAGES, ['newsId' => $agendaItem->id]);
            $result[] = new \Model\CalendarEvent($agendaItem, $pictures);
        }

        return response()->json($result);
    }


    /**
    * Populaire berichten ophalen
    */
    public function popularNews(Request $request) { 
        return $this->popularInCategory($request, self::$NEWS_CATEGORY);
    }

    public function popularCalendar(Request $request) { 
        return $this->popularInCategory($request, self::$CALENDAR_CATEGORY);
    }

    protected function popularInCategory(Request $request, $category) {
        $count = (int)$request->get('aantal', 5);
        $recent = app('db')->select(<<<QUERY
            SELECT `news`.`id`, COUNT(DISTINCT pagestats.visitor_ip) AS visitors 
            FROM news 
              INNER JOIN pagestats ON pagestats.type = :type AND pagestats.item_id = news.id 
              INNER JOIN `news_target_content` AS `content` ON `content`.`news` = `news`.`id`
            WHERE `news`.`startdt` >= DATE_SUB(CURRENT_TIMESTAMP, INTERVAL :interval DAY) 
              AND `news`.`category` = :category AND `content`.`target` = 1 AND `news`.`active` = 1 AND `content`.`active` = 1
            GROUP BY news.id ORDER BY visitors DESC 
            LIMIT 0, :count
QUERY
        , [
          'type' => $category == self::$NEWS_CATEGORY ? 'nieuws'
                  : ($category == self::$CALENDAR_CATEGORY ? 'agenda'
                  : ( "" ) ),
          'interval' => $category == self::$NEWS_CATEGORY ? 60
                  : ($category == self::$CALENDAR_CATEGORY ? 0
                  : 60 ),
          'category' => $category,
          'count' => $count
        ]);

        $result = array();
        foreach($recent as $item)
        {
            $newsItem = app('db')->select(self::$BASE_SQL . ' AND `news`.`id` = :newsId', ['category' => $category, 'newsId' => $item->id])[0];
            $pictures = app('db')->select(self::$LOAD_IMAGES, ['newsId' => $newsItem->id]);
            $result[] = new \Model\NewsItem($newsItem, $pictures);
        }

        return response()->json($result);
    }

    /**
    * Specifiek nieuwsbericht ophalen
    */
    public function newsitem($id) {
      $item = $this->itemFromCategory(self::$NEWS_CATEGORY, $id);
      return $item ? response()->json(new \Model\NewsItem($item['data'], $item['images'], $item['podcast'])) : abort(404);
    }

    /**
    * Specifiek agendaitem ophalen
    */
    public function calendaritem($id) {
      $item = $this->itemFromCategory(self::$CALENDAR_CATEGORY, $id);
      return $item ? response()->json(new \Model\CalendarEvent($item['data'], $item['images'], $item['podcast'])) : abort(404);
    }

    private function itemFromCategory($category, $id) {
        $newsItem = app('db')->select(self::$BASE_SQL
            . ' AND `news`.`id` = :id LIMIT 0, 1',
            ['category' => $category, 'id' => (int)$id]);
        
        if(count($newsItem) != 1) {
            return null;
        } else {
            // Note: content is stored in the database with an additional addslashes() - don't ask why, just remove it :)
            $newsItem[0]->content = $newsItem[0]->content;
            $images = app('db')->select(self::$LOAD_IMAGES, ['newsId' => $id]);
            $podcast = null;
            if($newsItem[0]->podcast_id > 0)
            {
              $podcast = app('db')->select(PodcastController::$BASE_SQL . ' AND `podcast`.`id` = :podcastId', ['podcastId' => $newsItem[0]->podcast_id]);
              $podcast = count($podcast) ? $podcast[0] : null;
            }

            return ['data' => $newsItem[0], 'images' => $images, 'podcast' => $podcast];
        }
    }
}