在我的代码中,每个公司都属于一个包,并且有一个包使用类 Package extends Model。包装型号:
protected $fillable =[
'name',
'daily_cv_view',
'monthly_cv_view',
'per_job_post_cv_view',
'active_job_post_limit',
'question_per_job_post_limit',
'package_lifetime',
'job_post_lifetime_limit',
'price'
];
public function companies()
{
return $this->hasMany('App\Models\Company');
}
public function packageUsages()
{
return $this->hasMany('App\Models\package_usage');
}
公司模式
public function package()
{
return $this->belongsTo('App\Models\Package', 'package_id');
}
包使用模型
public function company()
{
return $this->belongsTo('App\Models\Company');
}
public function package()
{
return $this->belongsTo('App\Models\Package');
}
在我的数据库播种机中,我正在尝试为每个创建的公司构建一个包圣人。所以它看起来像这样:
$companies=factory(App\Models\Company::class, 20)->create()->each(function ($company) {
$company->users()->save(factory(App\Models\User::class)->make());
$company->events()->save(factory(\App\Models\Event::class)->make());
});
foreach ($companies as $company)
$company->packageUsages()->save(factory(\App\Models\PackageUsage::class)->make([
'company_id'=>$company->id,
'package_id'=>$company->first()->package_id
]));
最后我的 pacage 使用 fctory 像这样:
$factory->define(App\Models\PackageUsage::class, function (Faker $faker) {
$companyId= $faker->randomElement(\App\Models\Company::all()->pluck('id')->toArray());
$company= App\Models\Company::find($companyId);
$package=$company->package;
$dailyCvView=$package->first()->daily_cv_view;
return [
'company_id'=>$company,
'package_id'=>$package,
'daily_cv_view'=>$faker->numberBetween($min=0 , $max=$dailyCvView ),
'monthly_cv_view'=>$faker->numberBetween($min=$dailyCvView , $max=$package->monthly_cv_view ),
'active_job_post_count'=>$company->jobPosts->count(),
'expiration_date'=>$faker->dateTimeBetween($min='now', $max='+ 30 days')
];
});
公司工厂:
$factory->define(\App\Models\Company::class, function (Faker $faker) {
return [
'name'=>$faker->company,
'company_size'=>$faker->randomElement(['10','50','100','200']),
'slogan'=>'باما کار کنید',
'website'=>$faker->domainName,
'logo'=>'/images/companies/avatar',
'message_title'=>'ما در اینجا.....',
'message_content'=>$faker->paragraph('10'),
'main_photo'=>'/images/companies/mainphotos/avatar',
'about_us'=>$faker->paragraph('10'),
'why_us'=>$faker->paragraph('10'),
'recruiting_steps'=>$faker->paragraph('10'),
'address'=>$faker->address,
'email'=>$faker->safeEmail,
'phone_number'=>$faker->numberBetween(10,100),
'location'=>$faker->city,
'package_id'=>$faker->randomElement(\App\Models\Package::all()->pluck('id')->toArray())
];
});
当我运行它时,它返回错误:
Illuminate\Database\QueryException : SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`balatar`.`package_usages`, CONSTRAINT `package_usages_package_id_foreign` FOREIGN KEY (`package_id`
) REFERENCES `packages` (`id`)) (SQL: insert into `package_usages` (`company_id`, `package_id`, `daily_cv_view`, `monthly_cv_view`, `active_job_post_count`, `expiration_date`, `updated_at`, `created_at`) values (4, 4, 12, 484, 0, 2018-09-16 07:26:11, 2018-08-30
03:45:22, 2018-08-30 03:45:22))
当我检查数据库时,我看到它为每个公司 ID 和包 ID 创建了 3 个包。因为我想第四个,当它尝试用 4 个 id 构建它并且我只插入 3 个包时,外键失败。我的代码有什么问题?