<?php
defined('IN_IA') or exit('Access Denied');
class MemberCampusActivities
{

    /**
     * 处理图集
     * @param $promotional_img
     * @param $type
     * @return false|mixed|string[]
     */
    public static function handlePromotionalImg($promotional_img,$type = 1)
    {
        $promotional_img = explode("||",$promotional_img);
        foreach ($promotional_img as $imageKey => $imageVal) {
            $promotional_img[$imageKey] = tomedia($imageVal);
        }
        $image_val = array_values($promotional_img);
        $first_image = $image_val[0];
        return $type == 1 ? $promotional_img : $first_image;
    }

    /**
     * 返回数组 展示
     * @param $promotionalImg
     * @return false|string[]
     */
    public static function promotionalImgArr($promotionalImg)
    {
        return explode("||",$promotionalImg);
    }

    /**
     * 返回字符串 保存
     * @param $promotionalImg
     * @return string
     */
    public static function promotionalImgStr($promotionalImg)
    {
        return implode("||",$promotionalImg);
    }

    /**
     * 获取收藏数量
     * @param $mid
     * @return int|mixed
     */
    public static function getCollectActivitiesCount($mid)
    {
        $sql = "select count(a.id) as `count` from ".tablename(PDO_NAME . 'member_collect_activities')
            ." as a join ".tablename(PDO_NAME . 'member_campus_activities') . " as b"
            ." on a.campus_activities_id = b.id where a.mid = '{$mid}'";

        $res = pdo_fetch($sql);
        return $res['count'] ?: 0;
    }
}