Laravel custom query for answer and question database - mysql

Question

I have three table called exams, questions and answers. They are connected via foreign id. I have function which i join questions and answers table. I have 1 question and multiple answers. When i join i see many same questions with 1 answer (which is normal). Is there any way to make join 1 question and multiple answers in one query(array) via query builder
Exams table
$table->id();
$table->string('language_code');
$table->string('title');
$table->integer('subcategory_id')->nullable();
$table->string('section');
$table->string('class');
$table->string('subject')->nullable();
$table->string('time')->default('60');
$table->timestamps();
Questions table
$table->id();
$table->integer('exam_id');
$table->string('q_pic')->nullable();
$table->string('q_name')->nullable();
$table->string('q_text');
$table->timestamps();
Answers table
$table->id();
$table->integer('user_id');
$table->integer('question_id');
$table->text('user_answer')->nullable();
$table->integer('user_answer_id');
$table->integer('c_answer_id');
$table->timestamps();
And here is my view function
public function view($id)
{
$questions = DB::table('questions')
->leftJoin('answers','answers.question_id','=','questions.id')
->where('questions.exam_id','=',$id)
->get();
return view('main/view',compact('questions'));
}

Answer 1

If you set up the relationships right, you would not need a join to achieve this.
Your relationships should look like this:
Exam model:
public function questions()
{
return $this->hasMany(Question::class);
}
Question model:
public function exam()
{
return $this->belongsTo(Exam::class);
}
public function answers()
{
return $this->hasMany(Answer::class);
}
Answer model:
public function question()
{
return $this->belongsTo(Question::class);
}
Now you can query like this:
//use App\Question;
$questionsWithAnswers = Question::where('id', $id)->with('answers')->get();
This should give you a collection of questions with related answers.