laravel - Eloquent relation with two keys -

i working on team sports statistics project in laravel.

here sketch of main models regarding question:

class team     // belongstomany matches     // belongstomany people  class match     // belongstomany teams     // belongstomany people  class person     // belongstomany matches     // belongstomany teams 

i have made models pivot tables work directly them. have stuff goals_scored, number, position etc. stored there , it's clumsy use methods updating pivot.

class matchteam  // participation of team in match     // belongsto match     // belongsto team  class matchperson  // participation of person in match     // belongsto match     // belongsto team     // belongsto person 

is there eloquent way relate matchteam matchperson? don't want introduce direct match_team_id foreign key, want using existing match_id , team_id fields on both of tables.

currently have in matchteam model:

public function matchpeople()  // roster {     return $this->hasmany('app\stats\matchperson', 'team_id', 'team_id')->where('match_id', $this->match_id); } 

it works fine. however, concerned code not fair nature of relation - not related based on team_id, related based on both fields. have written this:

public function matchpeople()  // roster {     return $this->hasmany('app\stats\matchperson', 'match_id', 'match_id')->where('team_id', $this->team_id); } 

is there fair way in specify relation based on 2 columns in eloquent?

of course, question more out of curiosity actual problem of making method conquered.

a usage example curious:

$teama->goals_for = $teama->matchpeople->sum('goals');