How can i change key id in method class orm Laravel? - laravel-5

Question

Maybe is not possible but i have in table answers for radio input with id of question and answer like id = 36 , answer = Yes. My code below get all answers
public function getAnswer() {
return $this->hasMany('App\Answer', 'user_id', 'id')
->with('question')
->whereHas('question.group', function($query) {
$query->where('name', 'simple_quesion');
});
}
and i have collection which is ok
#items: array:9 [▼
0 => getAnswer {#400 ▶}
1 => getAnswer {#401 ▶}
2 => getAnswer {#402 ▶}
but is any way to get keys and assign with this collection like
#items: array:9 [▼
35 => getAnswer {#400 ▶}
37 => getAnswer {#401 ▶}
42 => getAnswer {#402 ▶}
in this method public function getAnswer() ?
[UPDATE]
full collection
Collection {#396 ▼
#items: array:9 [▼
0 => getAnswer {#400 ▼
#fillable: array:3 [▶]
#connection: "mysql"
#table: null
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:7 [▼
"id" => 18
"user_id" => 11
"answer_id" => 34
"answer" => "YES"
]
#original: array:7 [▶]
#changes: []
And i need key answer_id => 34
#items: array:9 [▼
34 => getAnswer {#400 ▼

Answer 1

Ok i am so stupid. This is so easy. In blade or controller i can use:
{{ dd($user->getAnswer->pluck('answer', 'answer_id')) }}

Answer 2

Try this:
In Answer model, add this:
public function question(){
return $this->belongsTo("App\Question"); //the column name of the question should be "question_id"
}
in Question model, do:
public function answers(){
return $this->hasMany("App\Answer");
}
And in your controller, where you want to get the question and its answers, you just do:
Question::with('answers')->all(); //assuming you want to get all the questions and their answers