src/Biz/Classroom/Dao/Impl/ClassroomCourseDaoImpl.php

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<?php

namespace Biz\Classroom\Dao\Impl;

use Biz\Classroom\Dao\ClassroomCourseDao;
use Codeages\Biz\Framework\Dao\GeneralDaoImpl;

class ClassroomCourseDaoImpl extends GeneralDaoImpl implements ClassroomCourseDao
{
    protected $table = 'classroom_courses';

    public function updateByParam($params, $fields)
    {
        return $this->db()->update($this->table, $fields, $params);
    }

    public function deleteByClassroomIdAndCourseId($classroomId, $courseId)
    {
        $result = $this->db()->delete($this->table, array('classroomId' => $classroomId, 'courseId' => $courseId));

        return $result;
    }

    public function findClassroomIdsByCourseId($courseId)
    {
        $sql = "SELECT classroomId FROM {$this->table()} where courseId=?";

        return $this->db()->fetchAll($sql, array($courseId));
    }

    public function getClassroomIdByCourseId($courseId)
    {
        $sql = "SELECT classroomId FROM {$this->table()} where courseId = ? LIMIT 1";

        return $this->db()->fetchAssoc($sql, array($courseId)) ?: null;
    }

    public function getByCourseSetId($courseSetId)
    {
        $sql = "SELECT * FROM {$this->table()} where courseSetId = ? LIMIT 1";

        return $this->db()->fetchAssoc($sql, array($courseSetId)) ?: null;
    }

    public function getByClassroomIdAndCourseId($classroomId, $courseId)
    {
        $sql = "SELECT * FROM {$this->table} where classroomId = ? AND courseId = ? LIMIT 1";

        return $this->db()->fetchAssoc($sql, array($classroomId, $courseId)) ?: null;
    }

    public function deleteByClassroomId($classroomId)
    {
        $sql = "DELETE FROM {$this->table} WHERE classroomId = ?";
        $result = $this->db()->executeUpdate($sql, array($classroomId));

        return $result;
    }

    public function findByClassroomIdAndCourseIds($classroomId, $courseIds)