如何在关系表中播种

Question

我想创建一些应用程序，例如曲棍球队排名和比赛。我认为在匹配表中我必须有两个外键（first_team_id 和 second_team_id）。我在迁移中做到了（create_mathes_table）：

public function up()
    {
        Schema::create('matches', function (Blueprint $table) {
            $table->increments('id');
            $table->unsignedInteger('first_team_id');
            $table->unsignedInteger('second_team_id');
            $table->foreign('first_team_id')->references('id')->on('team');
            $table->foreign('second_team_id')->references('id')->on('team');
            $table->date('match_date');
        });
    }

我在团队模型（多对多）中有这种关系：

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

我已经在 Team 表中播种，但我不知道如何在关系表中播种 使用两个外键匹配，我在 Team 表中播种如下： 播种机：

public function run()
    {
        factory(App\Team::class,11)->create();
    }

工厂：

<?php
/** @var \Illuminate\Database\Eloquent\Factory $factory */
$factory->define(App\Team::class, function (Faker\Generator $faker) {
    $team_example = ['Dinamo','Schacter','Zorya','Stal','Vorskla','Olimpik','Mariupol','Zvezda','Karpaty','Chernomorets','Veres'];
    return [
        'name' => $faker->unique()->randomElement($team_example),
        'score' => $faker->numberBetween($min = 1, $max = 15)
    ];
});

Answer 1

首先为Match 定义工厂。

$factory->define(App\Match::class, function (Faker\Generator $faker) {
    return [
        ///
    ];
});

然后尝试以下操作：

factory(App\Match::class, 11)->create([
    'first_team_id' => factory(App\Team::class)->create()->id,
    'second_team_id' => factory(App\Team::class)->create()->id,
]);