Laravel 5.7 关系一对多列

Question

我有团队和比赛 table。所有比赛信息保存在比赛 table 两队、获胜队、比赛时间等

匹配 table 我有三个字段 team_1、team_2、winner_team 我想将这些领域与团队 table

联系起来

这是我的代码

团队模型

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



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

    }

匹配模型

class Match extends Model
{
    public function team_1()
    {
        return $this->belongsTo('App\Team','id');
    }

    public function team_2()
    {
        return $this->belongsTo('App\Team','team_2');
    }

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

    public function league()
    {
        return $this->belongsTo('App\League');
    }

    public function teams() {
        return $this->team_1()->merge($this->team_2());
    }
}

迁移文件

Schema::create('matches', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('team_1')->unsigned()->index();
            $table->integer('team_2')->unsigned()->index();
            $table->integer('league_id')->unsigned()->index();
            $table->integer('winner')->nullable();
            $table->dateTime('match_time');
            $table->timestamps();

            $table->foreign('team_1')->references('id')->on('teams')
                ->onDelete('restrict')
                ->onUpdate('cascade');

            $table->foreign('team_2')->references('id')->on('teams')
                ->onDelete('restrict')
                ->onUpdate('cascade');

            $table->foreign('league_id')->references('id')->on('leagues')
                ->onDelete('restrict')
                ->onUpdate('cascade');

            $table->foreign('winner')->references('id')->on('teams')
                ->onDelete('restrict')
                ->onUpdate('cascade');
        });

Answer 1

public function team_1()
{
    return $this->belongsTo('App\Team', 'team_1');
}

public function team_2()
{
    return $this->belongsTo('App\Team', 'team_2');
}

Laravel 5.7 关系一对多列

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laravel-5

laravel-migrations