Question

林收到这个错误，当我尝试将数据保存到使用Laravel 5其他形式的MySQL，并保存（）方法工作良好，但此一：

SQLSTATE [42S02]：基表或视图未找到：1146表 'datatest.about_category' 不存在（SQL：INSERT INTO about_category（about_id，category_id）的值（11,4））

这是我的Controller存储方法：

public function store(AboutRequest $request)
{
    $about = new About();
    $about->title = $request->title;
    $about->body = $request->body;
    $about->save();
    $about->categories()->attach(request('category'));
    return redirect(route('abouts.create'));
}

这是我的模特：

About.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class About extends Model
{
    public  $table = "abouts";
    public function categories()
    {
        return $this->belongsToMany(Category::class);
    }
}

类别.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
    protected $table = "categories";

    public  $fillable = ['id' , 'name'];

    public function abouts(){
        return $this->belongsToMany(About::class);
    }
}

关于Abouts表

public function up()
{
    Schema::create('abouts', function (Blueprint $table) {
        $table->increments('id');
        $table->string('title');
        $table->text('body');
        $table->timestamps();
    });
}

有关的类别表

public function up()
{
    Schema::create('categories', function (Blueprint $table) {
        $table->increments('id');
        $table->string('name');
        $table->timestamps();
    });
}

Answer 1

您的多对多关系需要三个表：abouts，categories和about_category。您尚未创建about_category表：

Schema::create('about_category', function (Blueprint $table) {
    $table->integer('about_id')->unsigned();
    $table->integer('category_id')->unsigned();

    $table->foreign('about_id')->references('id')->on('abouts');
    $table->foreign('category_id')->references('id')->on('categories');
});

找不到基本表或视图：1146表Laravel 5.7

1 个答案: