如何在迁移过程中播种特定表 - Laravel 5？答案

【问题标题】：How to seed specific table as part of migration - Laravel 5?如何在迁移过程中播种特定表 - Laravel 5？
【发布时间】：2020-06-14 22:29:21
【问题描述】：

我有这个命令

php artisan db:seed --class=GraphsTableSeeder

我需要在我的部分代码中运行（迁移）。

我该怎么做？

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

use App\Models\Graph;


class RescueGraphsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        if (Schema::hasTable('graphs')) {

            $graphRecords = Graph::all();

            if(count($graphRecords) == 42){
                echo "graphs table has good data.";
            }

            //truncate
            DB::table('graphs')->truncate();

            //add data
            //php artisan db:seed --class=GraphsTableSeeder ✨

        } else {

            //add graphs table

            //add data
            //php artisan db:seed --class=GraphsTableSeeder ✨

        }
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        //
    }
}

我有点卡住了，请帮忙。

【问题讨论】：

标签： php laravel laravel-5 database-migration

【解决方案1】：

请查看链接Programmatically Executing Commands

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

use App\Models\Graph;


class RescueGraphsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        if (Schema::hasTable('graphs')) {

            if(Graph::count() == 42){
                echo "graphs table has good data.";
            }

            DB::table('graphs')->truncate();

        }

        $exitCode = \Artisan::call('db:seed', [
            '--class' => 'GraphsTableSeeder'
        ]);
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        //
    }
}

【讨论】：