我是Symfony2的新手。 我的表中有5列:answer_a,answer_b,answer_c,answer_d和correct_answer。
答案a-d在ABCD测验中包含文本答案。在correct_answer中,我有" a"," b"," c"或" d"串。我怎样才能以最好的方式向用户显示正确的文字答案?我应该添加实体new" text_correctanswer"领域?或者我应该在控制器中创建具有正确文本答案的新数组?
答案 0 :(得分:0)
您需要oneToMany
关系
use Doctrine\Common\Collections\ArrayCollection;
/** @Entity */
class Quiz {
protected $id;
/**
* @OneToMany(targetEntity="Answer", mappedBy="quiz")
*/
protected $answers;
public function __construct()
{
$this->answers = new ArrayCollection;
}
}
/** @Entity */
class Answer {
protected $id;
protected $isCorrect;
/**
* @ManyToOne(targetEntity="Quiz", inversedBy="answers")
* @JoinColumn(name="quiz_id", referencedColumnName="id")
*/
protected $quiz;
}