我想通过下拉列表保存一些数据..加载页面后,数据库也使用下拉列表获取,但在我单击保存按钮后它没有保存。我认为课程迁移表有问题,但我无法得到它。[风景是学生在参加课程时可以从下拉列表中上课。
这是我的委托人:
<?php
namespace App'Http'Controllers;
use Illuminate'Http'Request;
use App'Http'Requests;
use App'Course;
use App'TheClass;
use Redirect;
class courseController extends Controller
{
public function index()
{
$alldata=Course::all();
return view('course.index',compact('alldata'));
}
public function create()
{
$input='App'TheClass::all();
return view('course.create',compact('input'));
}
public function store(Request $request)
{
$input = $request->all();
Course::create($input);
return redirect('course');
}
}
这是我的视图页面:
<html>
<head>
<title> Create Course </title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container" >
<h3> Create course </h3>
{!! Form::open(array('route' => 'course.store','class'=>'form-horizontal')) !!}
{!! Form::token(); !!}
<?php echo csrf_field(); ?>
<div class="form-group">
<label>Course Code</label>
<input type="text" name="course_code" class="form-control" placeholder="Code">
</div>
<div class="form-group">
<label>Course Title</label>
<input type="text" name="course_title" class="form-control" placeholder="Title">
</div>
<div class="form-group">
<label>Course Credit</label>
<input type="text" name="course_credit" class="form-control" placeholder="Credit">
</div>
<div class="form-group">
<label for="">Class</label>
<select class="form-control input-sm" name="class_id" >
@foreach($input as $row)
<option value="{{$row->class_id}}">{{$row->class_name}}</option>
@endforeach
</select>
</div>
<button type="submit" class="btn btn-default">Submit</button>
{!! Form::close() !!}
</div>
</body>
</html>
课程表迁移:
<?php
use Illuminate'Database'Schema'Blueprint;
use Illuminate'Database'Migrations'Migration;
class CreateCourseTable extends Migration
{
public function up()
{
Schema::create('courses', function (Blueprint $table) {
$table->increments('course_id');
$table->string('course_code',10);
$table->string('course_title',50);
$table->string('course_credit');
$table->integer('class_id')->unsigned();
$table->timestamps();
$table->foreign('class_id')->references('id')->on('classes');
});
}
public function down()
{
Schema::drop('courses');
}
}
类表迁移:
<?php
use Illuminate'Database'Schema'Blueprint;
use Illuminate'Database'Migrations'Migration;
class CreateClassTable extends Migration
{
public function up()
{
Schema::create('classes', function (Blueprint $table) {
$table->increments('id');
$table->string('class_name',10);
$table->timestamps();
});
}
public function down()
{
//
}
}
将{{$row->class_id}}
更改为{{$row->id}}
因为您的类表没有class_id列。
- 首先,您需要将
$fillable
添加到模型中,作为create
方法使用质量分配。 - 其次,我在迁移中看不到任何
category
字段。您的select
具有名称category
因此在数据库中也应该category
字段。
基本上在这里你需要使用一对多
附言没有足够的评论点,所以回答了。