preg_match（）期望参数2是字符串，db：seed中给出的数组？

Question

我试图添加种子类别和翻译，但我得到这个错误？任何建议如何解决这个问题？所以我尝试的是每个类别添加两个翻译。

public function run()
    {
      $now = Carbon::now('utc')->toDateTimeString();

      DB::table('category_translations')->delete();
      DB::table('categories')->delete();

      $arg1 = [
        [

          'slug' => 'Kreis-1-Altstadt',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-2',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-3',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-4',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-5-Industriequartier',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-6',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-7',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-8-Reisbach',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-9',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-10',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-11',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'slug' => 'Kreis-12-Schwamendingen',
          'status' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ]
      ];
      $category = Categories::create($arg1);

      $arg2 = [
        [
          'title' => 'Kreis 1 / Altstadt',
          'language_id' => 1,
          'category_id' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 1 / Altstadt',
          'language_id' => 2,
          'category_id' => 1,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 2',
          'language_id' => 1,
          'category_id' => 2,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 2',
          'language_id' => 2,
          'category_id' => 2,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 3',
          'language_id' => 1,
          'category_id' => 3,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 3',
          'language_id' => 2,
          'category_id' => 3,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 4',
          'language_id' => 1,
          'category_id' => 4,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 4',
          'language_id' => 2,
          'category_id' => 4,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 5 / Industriequartier',
          'language_id' => 1,
          'category_id' => 5,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 5 / Industriequartier',
          'language_id' => 2,
          'category_id' => 5,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 6',
          'language_id' => 1,
          'category_id' => 6,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 6',
          'language_id' => 2,
          'category_id' => 6,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 7',
          'language_id' => 1,
          'category_id' => 7,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 7',
          'language_id' => 2,
          'category_id' => 7,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 8 / Reisbach',
          'language_id' => 1,
          'category_id' => 8,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 8 / Reisbach',
          'language_id' => 2,
          'category_id' => 8,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 9',
          'language_id' => 1,
          'category_id' => 9,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 9',
          'language_id' => 2,
          'category_id' => 9,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 10',
          'language_id' => 1,
          'category_id' => 10,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 10',
          'language_id' => 2,
          'category_id' => 10,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 11',
          'language_id' => 1,
          'category_id' => 11,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 11',
          'language_id' => 2,
          'category_id' => 11,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 12 / Schwamendingen',
          'language_id' => 1,
          'category_id' => 12,
          'created_at' => $now,
          'updated_at' => $now
        ],
        [
          'title' => 'Kreis 12 / Schwamendingen',
          'language_id' => 2,
          'category_id' => 12,
          'created_at' => $now,
          'updated_at' => $now
        ]
      ];
      CategoryTranslations::create($arg2);

      $this->command->info(count($data).' article categories are created');
    }

Answer 1

create（）方法接受单个模型的属性数组。如果要创建多个对象，则需要创建（）多次：

foreach($arg1 as $data) {
  Categories::create($data);
}

Answer 2

你也可以使用insert

Categories::insert($arg1);