1 初始化数据库和建立随机数据

laravel 使用测试驱动开发一个论坛系列

请忽略blog这个命名，blog是我开发域名，不管什么项目

我用docker开发环境加phpstorm, 源码见相关的github地址
启动docker环境

$ docker-compose up -d
Creating network "dnmp_net-php72" with the default driver
Creating network "dnmp_net-mysql" with the default driver
Creating network "dnmp_net-redis" with the default driver
Creating dnmp_nginx_1         ... done
Creating dnmp_phpredisadmin_1 ... done
Creating dnmp_mysql_1         ... done
Creating dnmp_redis_1         ... done
Creating dnmp_php72_1         ... done
Creating dnmp_phpmyadmin_1    ... done

进入docker 容器

$winpty docker-compose exec php72 zsh

初始化框架

$composer create-project --prefer-dist laravel/laravel blog.dock.com -vvv

写相关的产品说明

# 论坛
1.帖子
2.回复
3.用户
A.一个帖子是由一个用户创建的
B.一个回复属于一个帖子并且属于一个用户

开始码码
添加thread(帖子)

➜  html cd blog.dock.com
➜  blog.dock.com php artisan make:model App\\Models\\Thread -a
Model created successfully.
Factory created successfully.
Created Migration: 2018_10_31_003004_create_threads_table
Controller created successfully.

thread迁移文件

<?php

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

class CreateThreadsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('threads', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('user_id');
            $table->string('title');
            $table->text('body');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('threads');
    }
}

生成回复模型 reply

➜  blog.dock.com php artisan make:model App\\Models\\Reply -a
Model created successfully.
Factory created successfully.
Created Migration: 2018_10_31_003725_create_replies_table
Controller created successfully.
➜  blog.dock.com

回复迁移文件

<?php

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

class CreateRepliesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('replies', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('user_id');
            $table->integer('thread_id');
            $table->text('body');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('replies');
    }
}

更新生成工厂 reply

<?php

use Faker\Generator as Faker;

$factory->define(App\Models\Reply::class, function (Faker $faker) {
    return [
        //
        'user_id' => function () {
            return factory(\App\User::class)->create()->id;
        },
        'thread_id' => function () {
            return factory(\App\Models\Thread::class)->create()->id;
        },
        'body' => $faker->paragraph,
    ];
});

更改生成工厂 thread

<?php

use Faker\Generator as Faker;

$factory->define(App\Models\Thread::class, function (Faker $faker) {
    return [
        'user_id' => function () {
            return factory(\App\User::class)->create()->id;
        },
        'title' => $faker->sentence,
        'body' => $faker->paragraph
    ];
});

生成调用

➜  blog.dock.com php artisan make:seeder ThreadSeeder
Seeder created successfully.
➜  blog.dock.com

相关的代码

<?php

use Illuminate\Database\Seeder;

class ThreadSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        //
        return factory(\App\Models\Thread::class, 50)->create()
                ->each(function($thread){
                    return factory(\App\Models\Reply::class, 10)->create(['thread_id'=> $thread->id]);
                });
    }
}

更改数据库配置文件 .env文件中修改如下，并建相关的数据库

DB_CONNECTION=mysql
DB_HOST=mysql
DB_PORT=3306
DB_DATABASE=blog
DB_USERNAME=root
DB_PASSWORD=123456

执行迁移

php artisan migrate

生成数据

php artisan db:seed --class ThreadSeeder