<?php
 
namespace Database\Seeders;
 
use Illuminate\Database\Seeder;
use DB;
 
class KeywordAndRelationTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        //關(guān)鍵詞數(shù)據(jù)
        DB::table('keyword') -> insert([
            ['keyword' => '搞笑'],
            ['keyword' => '文藝'],
            ['keyword' => '正片'],
            ['keyword' => '驚悚'],
            ['keyword' => '娛樂'],
            ['keyword' => '武術(shù)'],
        ]);
 
        //關(guān)系表
        DB::table('relation') -> insert([
            [
                'article_id' => rand(1,3),
                'keyword_id' => rand(1,6)
            ],
            [
                'article_id' => rand(1,3),
                'keyword_id' => rand(1,6)
            ],
            [
                'article_id' => rand(1,3),
                'keyword_id' => rand(1,6)
            ],
            [
                'article_id' => rand(1,3),
                'keyword_id' => rand(1,6)
            ],
        ]);
    }
}
 

return $this -> belongsToMany(被關(guān)聯(lián)模型的元素空間路徑, 多對多模型的關(guān)系表名, 關(guān)系表中當(dāng)前模型中的關(guān)系鍵，關(guān)系表中被關(guān)聯(lián)模型的關(guān)系鍵)