Querying data in Laravel from a table with two foreign keys referencing the same table

I am facing an issue with mapping relations in Laravel Eloquent for two tables: teams and games. The teams table has id, group_id, and name fields, while the games table includes id, home_team_id, away_team_id, date, and score. The problem arises from the fact that both foreign keys (home_team_id and away_team_id) in the games table are pointing to the same table (teams). I attempted to map these relations using Laravel Eloquent but encountered a failure.

Here is a snippet of my code:

namespace App;

use Illuminate\Database\Eloquent\Model;

class Team extends Model
{
    public function group(){
        return $this->belongsTo('App\Group');
    }

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

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Game extends Model
{
    public function homeTeam(){
        $this->belongsTo('App\Team', 'home_team_id');
    }

    public function awayTeam(){
        $this->belongsTo('App\Team', 'away_team_id');
    }

    public function bets(){
        $this->hasMany('App\Bet');
    }
}

When trying to access home_team->name and away_team->name in my view file, I encounter the following error:

<td>{{ $game->homeTeam->name }}</td>
<td>{{ $game->awayTeam->name }}</td>

The error message reads: "Relationship method must return an object of type Illuminate\Database\Eloquent\Relations\Relation."

Answer №1

To achieve the desired result, it is essential to ensure that the relationship is returned from the methods. An example of this would be:

return $this->belongsTo('App\Team', 'home_team_id');

This process should be implemented in the Team model rather than the game model.

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