我正在尝试使用laravel和mysql在表中插入数据,但我未插入任何null值时看到错误SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'univ' cannot be null
。我正在填写表格中的所有字段。是什么原因?请帮忙。
我的形式是education.blade.php,并提供了代码。
@section('content')
<div class="container"><br>
<h1 class="text-success text-center">Add Education Here</h1><br>
<div class="col-md-offset-3 col-md-6 m-auto d-block">
<form action="edu" method="post">
<input type="hidden" name="_token" value="{{csrf_token()}}">
<input type="text" name="degree" value=" MSc / BS" disabled>
<div>
<div class="form-group">
<label>University: </label>
<input type="text" name="univ" id="" class="form-control">
</div>
<div class="form-group">
<label>Country: </label>
<input type="text" name="country" id="" class="form-control">
</div>
<div class="form-group">
<label>Year: </label>
<input type="number" name="year" id="" class="form-control">
</div>
<div class="form-group">
<label>Research Area: </label>
<input type="text" name="research" id="" class="form-control">
</div>
</div>
<input type="submit" name="submit" value="ADD!" class="btn btn-lg col-md-offset-3 col-md-6 m-auto d-block">
</form>
</div>
</div>
@endsection
我的迁移代码在此处给出。
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateEducsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('educs', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('registrations');
$table->string('degree');
$table->string('univ');
$table->string('country');
$table->integer('year');
$table->text('research_area');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('educs');
}
}
我控制器的代码已指定为EduContoller.php
<?php
namespace App\Http\Controllers;
use Request;
use App\educ;
class EduController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
//
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
//
return view('education');
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
//
educ::create(Request::all());
return 'inserted';
}
/**
* Display the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function show($id)
{
//
}
/**
* Show the form for editing the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function edit($id)
{
//
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param int $id
* @return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
//
}
/**
* Remove the specified resource from storage.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function destroy($id)
{
//
}
}
我的模型代码在这里给出。
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class educ extends Model
{
//
protected $fillable = ['user_id','degree','univ','country','year','research_area'];
}
并给出了我在提交表格时遇到的错误。
违反完整性约束:1048列“ univ”不能为空
最佳答案
您的问题出在univ列为空。为该表编写初始迁移时,没有添加->nullable()
列修饰符。因此,由ORM生成的创建表的SQL不具有您期望的NULL
修饰符。根据您的接受标准,这里有两个选择:
1.通过迁移添加可为空的修饰符
2.确保每次发布时都提交univ,从而使其成为良好UX的前端必填字段。
这份清单并不详尽,但可以助您一臂之力。希望一切顺利!
关于mysql - SQLSTATE [23000]:违反完整性约束:1048列“univ”不能为空,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/52737888/