Laravel雄辩地选择主键“无法转换为字符串”

Question

我有一条路线，用户在PlayerWife表中输入外键player_id：

Route::get('player/wife/{player_id}','WifeController@showWife');

然后在放到showWife函数内的WifeController中：

public function showWife($player_id)
{
    $playerWife = PlayerWife::where('player_id',$player_id);
    return $playerWife;
}

但是会引发错误：

Object of class Illuminate\Database\Eloquent\Builder could not be converted to string

正确地通过player_id选择PlayerWife的正确方法是什么？

Answer 1

我发现了问题，我需要像这样添加firstOrFail（）：

$playerWife = PlayerWife::where('player_id',$player_id)->firstOrFail();

它解决了问题。