Laravel 5在关系字段中将oneToMany关系设置为0来保存工厂数据

Question

我用oneToMany关系创建了两个模型Text和TextMain（texts_main.text_id = texts.id）

Text.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Text extends Model{

    use SoftDeletes;

    protected $table = 'texts';
    protected $fillable = [

        'text', 
        'lang_id'
    ];
    protected $dates = [

        'deleted_at'
    ];
}

TextMain.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class TextMain extends Model{

    protected $table = 'texts_main';
    protected $fillable = [

        'user_id',
        'text_id'
    ];

    public $timestamps = false;

    public function texts() {

        return $this->hasMany('App\Models\Text', 'id', 'text_id');
    }
}

然后我定义了两个工厂

$factory->define(App\Models\Text::class, function (Faker\Generator $faker) {

    return [

        'text'      => $faker->paragraph,
        'lang_id'   => 1
    ];
});


$factory->define(App\Models\TextMain::class, function (Faker\Generator $faker) {

    return [

        'user_id'   => 1
    ];
});

在我的播种器php文件中

public function run()
{
    factory(TextMain::class, 5)->create()
        ->each(function($tm) {

        $tm->texts()
            ->save(factory(Text::class)->make());
    });
}

但是当我开始在表格“texts_main”字段中进行迁移和播种时，关系“text_id”等于0。

如何更改代码以解决此问题？ 在此先感谢:)

UPD：

    Schema::create('texts', function (Blueprint $table) {

        $table->increments('id');
        $table->timestamps();
        $table->softDeletes();

        $table->longText('text');
        $table->integer('lang_id');
    });

    Schema::create('texts_main', function (Blueprint $table) {

        $table->increments('id');

        $table->integer('user_id');
        $table->integer('text_id');
    });