src/Biz/Course/Dao/Impl/ThreadDaoImpl.php

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<?php

namespace Biz\Course\Dao\Impl;

use Biz\Course\Dao\ThreadDao;
use Codeages\Biz\Framework\Dao\GeneralDaoImpl;

class ThreadDaoImpl extends GeneralDaoImpl implements ThreadDao
{
    protected $table = 'course_thread';

    public function deleteByCourseId($courseId)
    {
        return $this->db()->delete($this->table(), array('courseId' => $courseId));
    }

    protected function createQueryBuilder($conditions)
    {
        if (isset($conditions['title'])) {
            $conditions['title'] = "%{$conditions['title']}%";
        }

        if (isset($conditions['content'])) {
            $conditions['content'] = "%{$conditions['content']}%";
        }

        return parent::createQueryBuilder($conditions);
    }

    public function findLatestThreadsByType($type, $start, $limit)
    {
        $sql = "SELECT * FROM {$this->table()} WHERE type = ? ORDER BY createdTime DESC";
        $sql = $this->sql($sql, array(), $start, $limit);

        return $this->db()->fetchAll($sql, array($type)) ?: array();
    }

    public function findEliteThreadsByType($type, $status, $start, $limit)
    {
        $sql = "SELECT * FROM {$this->table()} WHERE type = ? AND isElite = ? ORDER BY createdTime";
        $sql = $this->sql($sql, array(), $start, $limit);

        return $this->db()->fetchAll($sql, array($type, $status)) ?: array();
    }

    public function findThreadsByCourseId($courseId, $orderBy, $start, $limit)
    {
        $orderBy = implode(' ', $orderBy);
        $sql = "SELECT * FROM {$this->table} WHERE courseId = ? ORDER BY {$orderBy}";
        $sql = $this->sql($sql, array(), $start, $limit);

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

    public function findThreadsByCourseIdAndType($courseId, $type, $orderBy, $start, $limit)
    {
        $orderBy = implode(' ', $orderBy);
        $sql = "SELECT * FROM {$this->table} WHERE courseId = ? AND type = ? ORDER BY {$orderBy} ";
        $sql = $this->sql($sql, array(), $start, $limit);