src/Biz/Course/Service/Impl/MaterialServiceImpl.php

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<?php

namespace Biz\Course\Service\Impl;

use Biz\BaseService;
use AppBundle\Common\ArrayToolkit;
use Biz\Common\CommonException;
use Biz\Content\Service\FileService;
use Biz\Course\Dao\CourseMaterialDao;
use Biz\Course\MaterialException;
use Biz\Course\Service\CourseService;
use Biz\Course\Service\MaterialService;
use Biz\File\Service\UploadFileService;
use Biz\File\UploadFileException;
use Codeages\Biz\Framework\Event\Event;

class MaterialServiceImpl extends BaseService implements MaterialService
{
    public function uploadMaterial($material)
    {
        $argument = $material;
        if (!ArrayToolkit::requireds($material, array('courseSetId', 'courseId', 'fileId'))) {
            $this->createNewException(CommonException::ERROR_PARAMETER_MISSING());
        }

        $fields = $this->_getMaterialFields($material);

        if (!empty($fields['fileId'])) {
            $courseMaterials = $this->searchMaterials(
                array(
                    'courseSetId' => $fields['courseSetId'],
                    'courseId' => $fields['courseId'],
                    'fileId' => $fields['fileId'],
                    'lessonId' => 0,
                    'type' => $fields['type'],
                ),
                array('createdTime' => 'DESC'), 0, PHP_INT_MAX
            );
            if ($courseMaterials) {
                $updateFields = array(
                    'lessonId' => $fields['lessonId'],
                    'source' => $fields['source'],
                    'description' => $fields['description'],
                );
                $material = $this->updateMaterial($courseMaterials[0]['id'], $updateFields, $argument);
            } else {
                $material = $this->addMaterial($fields, $argument);
            }
        } elseif (!empty($fields['link'])) {
            $material = $this->addMaterial($fields, $argument);
        }

        return $material;
    }

    public function addMaterial($fields, $argument)
    {
        $material = $this->getMaterialDao()->create($fields);

        $logType = 'openCourse' == $material['type'] ? 'open_course' : 'course';