How to set multiple attributes when setting a hasMany model

To automatically set the sport_club_id and sport_league_id on the TeamMember model when saving it through the LeagueTeam model, you can use Eloquent model events or override the save method in the TeamMember model. Here's a solution using model events:

1. Using Model Events:

   You can listen to the creating event of the TeamMember model to set the additional attributes before the model is saved to the database.

   First, ensure you have the necessary relationships defined in your models:

   // LeagueTeam model
   public function teamMembers()
   {
       return $this->hasMany(TeamMember::class);
   }
   
   // TeamMember model
   public function leagueTeam()
   {
       return $this->belongsTo(LeagueTeam::class);
   }
   

   Then, in the TeamMember model, you can set up the event listener:

   use Illuminate\Database\Eloquent\Model;
   
   class TeamMember extends Model
   {
       protected static function boot()
       {
           parent::boot();
   
           static::creating(function ($teamMember) {
               if ($teamMember->leagueTeam) {
                   $teamMember->sport_club_id = $teamMember->leagueTeam->sport_club_id;
                   $teamMember->sport_league_id = $teamMember->leagueTeam->sport_league_id;
               }
           });
       }
   }
   

2. Using the save Method Override:

   Alternatively, you can override the save method in the TeamMember model to set these attributes before saving:

   use Illuminate\Database\Eloquent\Model;
   
   class TeamMember extends Model
   {
       public function save(array $options = [])
       {
           if ($this->leagueTeam) {
               $this->sport_club_id = $this->leagueTeam->sport_club_id;
               $this->sport_league_id = $this->leagueTeam->sport_league_id;
           }
   
           return parent::save($options);
       }
   }
   

With either approach, when you call $league_team->teamMembers()->save($team_member);, the sport_club_id and sport_league_id will be automatically set based on the LeagueTeam model.