Php 拉威尔：我如何使用工厂在特定的模式中为模型播种？

我有一个存储个人地址的模型。 在以下条件下，一个人可以有多个地址：

• 必须有一个地址标记为永久地址
• 必须有一个地址标记为当前地址
• 地址可以同时标记为永久地址和当前地址
• 地址既不能是永久地址，也不能是当前地址

我正在尝试使用工厂为数据库添加种子

PersonalAddressFactory：

$factory->define(PersonAddress::class, function (Faker $faker) {
    return [
        'Address' => $faker->buildingNumber . ',' . $faker->streetName . ',' . $faker->streetAddress,
        'Landmark' => $faker->optional()->words(3, true),
        'CityID' => App\Entities\City::inRandomOrder()->first()->CityID,
        'PostalCode' => $faker->postcode,
        'IsPermanent' => ???
        'IsCurrent' => ???
    ];
});

$factory->define(PersonAddress::class, function (Faker $faker) {
    return [
        'Address' => $faker->buildingNumber . ',' . $faker->streetName . ',' . $faker->streetAddress,
        'Landmark' => $faker->optional()->words(3, true),
        'CityID' => App\Entities\City::inRandomOrder()->first()->CityID,
        'PostalCode' => $faker->postcode,
        'IsPermanent' => '0',
        'IsCurrent' => '0',
    ];
});

$factory->state(PersonAddress::class, 'permanent', ['IsPermanent' => '1']);
$factory->state(PersonAddress::class, 'current', ['IsCurrent' => '1']);
$factory->state(PersonAddress::class, 'permanent_and_current', ['IsPermanent' => '1', 'IsCurrent' => '1']);

播种机：

public function run() {
    $no_of_persons = (int)$this->command->ask('How many persons do you want to create?', 10);
    $this->command->info("Seeding {$no_of_persons} persons");
    $persons = factory(App\Entities\Person::class, $no_of_persons)->create();
    $this->command->info('Persons Created!');

    // Creating addresses for persons
    $this->command->info('Creating Addresses for persons');

    $persons->each(
        function ($person) {
            factory(App\Entities\PersonAddress::class, rand(1, 5))->create(['PersonID' => $person->PersonID]);
        });

    $this->command->info('Addresses Created!');

}

public function run() {
    $no_of_persons = (int)$this->command->ask('How many persons do you want to create?', 10);
    $this->command->info("Seeding {$no_of_persons} persons");
    $persons = factory(App\Entities\Person::class, $no_of_persons)->create();
    $this->command->info('Persons Created!');

    // Creating addresses for persons
    $this->command->info('Creating Addresses for persons');

    $persons->each(
        function ($person) {
            if (rand(1, 2) == 1) {
                factory(App\Entities\PersonAddress::class)->state('permanent')->create(['PersonID' => $person->PersonID]);
                factory(App\Entities\PersonAddress::class)->state('current')->create(['PersonID' => $person->PersonID]);
            }
            else {
                factory(App\Entities\PersonAddress::class)->state('permanent_and_current')->create(['PersonID' => $person->PersonID]);
            }
            factory(App\Entities\PersonAddress::class, rand(0, 3))->create(['PersonID' => $person->PersonID]);
        });

    $this->command->info('Addresses Created!');

}

---

如何解决这个问题？

我认为最简单的方法是先强制一个当前且永久的地址，然后随机种子

use App\Entities\PersonAddress;

// ...

$persons->each(function ($person) {
    factory(PersonAddress::class)->create(['PersonId' => $person->PersonID, 'permanent' => true, 'current' => true]);
    factory(PersonAddress::class, rand(0, 5))->create(['PersonId' => $person->PersonID]);
});

或者，另一种方法是像您那样进行种子设定，然后检查数据库中是否有永久和当前，如果没有，则创建一个

$persons->each(function ($person) {
    factory(PersonAddress::class, rand(1, 5))->create(['PersonID' => $person->PersonID]);

    $permanentCount = PersonAddress::where('PersonID', $person->PersonId)->where('permanent', true)->count();
    $currentCount = PersonAddress::where('PersonID', $person->PersonId)->where('current', true)->count();

    if (! $permanentCount || ! $currentCount) {
        factory(PersonAddress::class, rand(1, 5))->create([
            'PersonID' => $person->PersonID,
            'permanent' => $permanentCount < 1,
            'current' => $currentCount < 1
        ]);
    }
});    

$person->每个功能（$person）{
工厂（PersonAddress:：class，rand（1,5））->create（['PersonID'=>$person->PersonID]）；
$permanentCount=PersonAddress:：where（'PersonID'，$person->PersonID）->where（'permanent'，true）->count（）；
$currentCount=PersonalAddress:：where（'PersonID'，$person->PersonID）->where（'current'，true）->count（）；
if（！$permanentCount |！$currentCount）{
工厂（PersonalAddress:：class，rand（1,5））->创建([
'PersonID'=>$person->PersonID，
“永久”=>$permanentCount<1，
“当前”=>$currentCount<1
]);
}
});    

分别定义工厂类型

$factory->define(PersonAddress::class, function (Faker $faker) {
    return [
        'Address' => $faker->buildingNumber . ',' . $faker->streetName . ',' . $faker->streetAddress,
        'Landmark' => $faker->optional()->words(3, true),
        'CityID' => App\Entities\City::inRandomOrder()->first()->CityID,
        'PostalCode' => $faker->postcode,
        'IsPermanent' => false,
        'IsCurrent' => false,
    ];
});

$factory->defineAs(PersonAddress::class, 'permanent', function (Faker $faker) {
    $address = $factory->raw(PersonAddress::class);

    return array_merge($address, ['IsPermanent' => true, 'IsCurrent' => false]);
});

$factory->defineAs(PersonAddress::class, 'current', function (Faker $faker) {
    $address = $factory->raw(PersonAddress::class);

    return array_merge($address, ['IsPermanent' => false, 'IsCurrent' => true]);
});

$factory->defineAs(PersonAddress::class, 'permanent_and_current', function (Faker $faker) {
    $address = $factory->raw(PersonAddress::class);

    return array_merge($address, ['IsPermanent' => true, 'IsCurrent' => true]);
});

并使用它们随机生成

public function run() {
    $no_of_persons = (int)$this->command->ask('How many persons do you want to create?', 10);
    $this->command->info("Seeding {$no_of_persons} persons");
    $persons = factory(App\Entities\Person::class, $no_of_persons)->create();
    $this->command->info('Persons Created!');

    // Creating addresses for persons
    $this->command->info('Creating Addresses for persons');

    $persons->each(
        function ($person) {
            if (rand(1, 2) == 1) {
                // make different current and permanent addresses
                factory(App\Entities\PersonAddress::class, 'permanent', rand(1, 5))->create(['PersonID' => $person->PersonID]);
                factory(App\Entities\PersonAddress::class, 'current', rand(1, 5))->create(['PersonID' => $person->PersonID]);
            } else {
                // make same address as permanent and current
                factory(App\Entities\PersonAddress::class, 'permanent_and_current', rand(1, 5))->create(['PersonID' => $person->PersonID]);
            }

            // make some random addresses
            factory(App\Entities\PersonAddress::class, rand(0, 3))->create(['PersonID' => $person->PersonID]);
        });

    $this->command->info('Addresses Created!');
} 

---

回答我自己的问题:

根据答案的提示，我已经更新了代码以利用工厂状态，这是最终代码

PersonalAddressFactory：

$factory->define(PersonAddress::class, function (Faker $faker) {
    return [
        'Address' => $faker->buildingNumber . ',' . $faker->streetName . ',' . $faker->streetAddress,
        'Landmark' => $faker->optional()->words(3, true),
        'CityID' => App\Entities\City::inRandomOrder()->first()->CityID,
        'PostalCode' => $faker->postcode,
        'IsPermanent' => ???
        'IsCurrent' => ???
    ];
});

$factory->define(PersonAddress::class, function (Faker $faker) {
    return [
        'Address' => $faker->buildingNumber . ',' . $faker->streetName . ',' . $faker->streetAddress,
        'Landmark' => $faker->optional()->words(3, true),
        'CityID' => App\Entities\City::inRandomOrder()->first()->CityID,
        'PostalCode' => $faker->postcode,
        'IsPermanent' => '0',
        'IsCurrent' => '0',
    ];
});

$factory->state(PersonAddress::class, 'permanent', ['IsPermanent' => '1']);
$factory->state(PersonAddress::class, 'current', ['IsCurrent' => '1']);
$factory->state(PersonAddress::class, 'permanent_and_current', ['IsPermanent' => '1', 'IsCurrent' => '1']);

播种机：

public function run() {
    $no_of_persons = (int)$this->command->ask('How many persons do you want to create?', 10);
    $this->command->info("Seeding {$no_of_persons} persons");
    $persons = factory(App\Entities\Person::class, $no_of_persons)->create();
    $this->command->info('Persons Created!');

    // Creating addresses for persons
    $this->command->info('Creating Addresses for persons');

    $persons->each(
        function ($person) {
            factory(App\Entities\PersonAddress::class, rand(1, 5))->create(['PersonID' => $person->PersonID]);
        });

    $this->command->info('Addresses Created!');

}

public function run() {
    $no_of_persons = (int)$this->command->ask('How many persons do you want to create?', 10);
    $this->command->info("Seeding {$no_of_persons} persons");
    $persons = factory(App\Entities\Person::class, $no_of_persons)->create();
    $this->command->info('Persons Created!');

    // Creating addresses for persons
    $this->command->info('Creating Addresses for persons');

    $persons->each(
        function ($person) {
            if (rand(1, 2) == 1) {
                factory(App\Entities\PersonAddress::class)->state('permanent')->create(['PersonID' => $person->PersonID]);
                factory(App\Entities\PersonAddress::class)->state('current')->create(['PersonID' => $person->PersonID]);
            }
            else {
                factory(App\Entities\PersonAddress::class)->state('permanent_and_current')->create(['PersonID' => $person->PersonID]);
            }
            factory(App\Entities\PersonAddress::class, rand(0, 3))->create(['PersonID' => $person->PersonID]);
        });

    $this->command->info('Addresses Created!');

}

---

谢谢我已经将您的答案用作源代码，并更新了代码，以利用更新版本的laravel中提供的factory State功能。