在 Laravel 中创建简单的测验逻辑

Question

这些是我的架构表

Schema::create('question', function(Blueprint $table) {
            $table->increments('id');
            $table->text('title');
            $table->string('hint')->nullable();
            $table->text('explanation')->nullable();
            $table->string('referencematerial')->nullable();
            $table->string('imagepath')->nullable();
            $table->boolean('published')->default(1);
            $table->timestamps();
            $table->softDeletes();
        });

Schema::create('answers', function(Blueprint $table) {
            $table->increments('id');
            $table->string('text');
            $table->boolean('iscorrect')->nullable();
            $table->timestamps();
        });

这是我的问答课程。

class Answer extends Model
{
    protected $table = 'answer';

    public $timestamps = true;

    protected $fillable = array('text', 'iscorrect');

    public function Question()
    {
        return $this->belongsTo('Question');
    }

}

class Question extends Model
{
    protected $table = 'question';
    public $timestamps = true;

    protected $dates = ['deleted_at'];
    protected $fillable = array('title', 'hint', 'explanation', 'referencematerial', 'imagepath', 'published');


    public function Answer()
    {
        return $this->hasMany('Answer');
    }

}

我的测验控制器

public function index()
{
    $questions = Question::with('answers')->get();
    return $questions;
}

BadMethodCallException in Builder.php line 2251:
Call to undefined method Illuminate\Database\Query\Builder::answers()

我一直在尝试在页面上加载问题和答案。它不断给我查询生成器错误。请随意加入。

Answer 1

错误基本上是告诉你你调用的关系（answers）不存在。

您在模型中调用了关系Answer()，但在查询中将其引用为answers。

您要么需要将模型中的关系更新为answers()，要么将查询更改为$questions = Question::with('Answer')->get();

更新

您的关系没有正确调用模型，应该是：

public function Answer()
    {
        return $this->hasMany('App\Answer');
    }