src/AppBundle/Extensions/DataTag/RecommendCourseSetsDataTag.php

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<?php

namespace AppBundle\Extensions\DataTag;

class RecommendCourseSetsDataTag extends CourseBaseDataTag implements DataTag
{
    /**
     * 获取推荐课程列表.
     *
     * 可传入的参数：
     *   categoryId 可选 分类ID
     *   categoryCode 可选　分类CODE
     *   type 可选　课程类型：live直播, normal 普通
     *   count    必需 课程数量，取值不能超过100
     *   notFill     可选 推荐课程不足时不填充课程数，默认:false
     *
     * @param array $arguments 参数
     *
     * @return array 课程列表
     */
    public function getData(array $arguments)
    {
        $this->checkCount($arguments);

        $conditions = array('status' => 'published', 'recommended' => 1, 'parentId' => 0);
        $conditions = $this->getCourseService()->appendReservationConditions($conditions);

        $orderBy = 'recommendedSeq';

        if (!empty($arguments['categoryId'])) {
            $conditions['categoryId'] = $arguments['categoryId'];
        }

        if (!empty($arguments['categoryCode'])) {
            $category = $this->getCategoryService()->getCategoryByCode($arguments['categoryCode']);
            $conditions['categoryId'] = empty($category) ? -1 : $category['id'];
        }

        if (!empty($arguments['type'])) {
            $conditions['type'] = $arguments['type'];
        }

        if (!empty($arguments['orderBy'])) {
            $orderBy = $arguments['orderBy'];
        }

        $courseSets = $this->getCourseSetService()->searchCourseSets($conditions, $orderBy, 0, $arguments['count']);
        $fillCoursesCount = $arguments['count'] - count($courseSets);
        if ($fillCoursesCount > 0 && empty($arguments['notFill'])) {
            $conditions['recommended'] = 0;
            $coursesTemp = $this->getCourseSetService()->searchCourseSets($conditions, array('createdTime' => 'DESC'), 0, $fillCoursesCount);
            $courseSets = array_merge($courseSets, $coursesTemp);
        }

        return $this->fillCourseSetTeachersAndCategoriesAttribute($courseSets);
    }
}