CodeIgniter Active記錄多個“where”和“or”語句

Question

我有以下Active Record查詢。

//Example 1
public function info($school, $class, $student, $keyword)
{
    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    $this->db->or_where('school.description', $keyword);
    $this->db->or_where('class.description', $keyword);
    $this->db->or_where('student.description', $keyword); 

    return $this->db->get('info')->result();
}

我想對底部3“or_where”語句進行分組，以便它們包含在前3個“where”語句中。 我想出的解決方案是......

//Example 2
public function info($school, $class, $student, $keyword) 
{
    $this->db->where('school.description', $keyword);
    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    $this->db->or_where('class.description', $keyword);
    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    $this->db->or_where('student.description', $keyword); 
    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    return $this->db->get('info')->result();
}

這工作正常，但有沒有辦法在不重復代碼的情況下執行此操作？

Answer 1

我找到了解決方案！

public function info($school, $class, $student, $keyword)
{
    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    $this->db->where("(school.description LIKE '$keywords' OR class.description LIKE '$keywords' OR student.description LIKE '$keywords')");

    return $this->db->get('info')->result();
}

Answer 2

我只是偶然發現並想要添加以下解決方案，它使用CI活動記錄$this->db->like()語法：

public function info($school, $class, $student, $keyword)
{

    $this->db->where('school.id', $school);
    $this->db->where('class.id', $class);
    $this->db->where('student.id', $student);

    $this->db->like('school.description', $keyword);
    $this->db->or_like('class.description', $keyword);
    $this->db->or_like('student.description', $keyword);

    return $this->db->get('info')->result();
}