database - 从表中获取表单的 id 作为 Laravel 中下一个表单的参考
问题描述
我对 Laravel 很陌生。我目前正在做一个 Laravel 项目，一个人可以提交提案。我使用的 Laravel 版本是 Laravel Framework 8。我将提案表格分为 7 页。我在数据库中也有 7 个表。所以每一页的数据都会被保存到每一个表中。1 页 = 1 个表格。这意味着我也有 7 个模型。总之，我有 7 个视图、7 个控制器、7 个模型和 7 个表（如果这不是一个好的做法，请告诉我）
这是我的代码示例
路线
网页.php
Route::get('/form/details', [App\Http\Controllers\Lect\Form\Step1Controller::class, 'createStepOne'])->name('form.create.step.one');
Route::post('/form/details', [App\Http\Controllers\Lect\Form\Step1Controller::class, 'postCreateStepOne'])->name('form.create.step.one.post');
Route::get('/form/learning-outcomes', [App\Http\Controllers\Lect\Form\Step2Controller::class, 'createStepTwo'])->name('form.create.step.two');
Route::post('/form/learning-outcomes', [App\Http\Controllers\Lect\Form\Step2Controller::class, 'postCreateStepTwo'])->name('form.create.step.two.post');
...
模型
Step1.php
class Step1 extends Model {
use HasFactory;
public $table = 'forms';
protected $fillable = [
'title',
'code',
'creditvalue',
'mqflevel',
'affectedbatch',
'kulliyyah',
'department',
'synopsis',
'classification',
'prerequisite',
];
}
Step2.php
class Step2 extends Model {
use HasFactory;
public $table = 'proposal_learning_outcome';
public $timestamps = false;
protected $fillable = [
'proposal_id',
'lo_id',
'outcomes',
'bloom_c',
'bloom_a',
'bloom_p',
'ki',
'po',
];
}
控制器
Step1Controller.php
class Step1Controller extends Controller {
public function createStepOne(Request $request) {
return view('form.step1');
}
public function postCreateStepOne(Request $request) {
$validatedData = $request->validate([
'title' => 'required',
'code' => 'required|unique:forms',
'creditvalue' => 'required|numeric',
'mqflevel' => 'required|numeric',
'affectedbatch' => 'required',
'kulliyyah' => 'required',
'department' => 'required',
'synopsis' => 'required',
'classification' => 'required',
'prerequisite' => 'required',
]);
$step1 = new Step1;
$step1->title=$request->input('title');
$step1->code=$request->input('code');
$step1->creditvalue=$request->input('creditvalue');
$step1->mqflevel=$request->input('mqflevel');
$step1->affectedbatch=$request->input('affectedbatch');
$step1->kulliyyah=$request->input('kulliyyah');
$step1->department=$request->input('department');
$step1->synopsis=$request->input('synopsis');
$step1->classification=$request->input('classification');
$step1->prerequisite=$request->input('prerequisite');
$step1->created_by=Auth::user()->username;
$result = $step1->save();
return redirect()->route('form.create.step.two');
}
}
Step2Controller.php
class Step2Controller extends Controller {
public function createStepTwo(Request $request) {
return view('form.step2');
}
public function postCreateStepTwo(Request $request) {
$validatedData = $request->validate([
'proposal_id' => 'required',
'lo_id' => 'required',
'outcomes' => 'required',
'bloom_c' => 'required',
'bloom_a' => 'required',
'bloom_p' => 'required',
'ki' => 'required',
'po' => 'required',
]);
foreach($request->lo_id as $key=>$lo_id) {
$data = new Step2();
$data->proposal_id=$request->input('proposal_id');
$data->lo_id=$lo_id;
$data->outcomes=$request->outcomes[$key];
$data->bloom_c=$request->bloom_c[$key];
$data->bloom_a=$request->bloom_a[$key];
$data->bloom_p=$request->bloom_p[$key];
$data->ki=$request->ki[$key];
$data->po=$request->po[$key];
$data->save();
}
return redirect()->route('form.create.step.three');
}
}
看法
step1.blade.php
<form action="{{ route('form.create.step.one.post') }}" method="POST">
@csrf
<div class="card">
Step 1: Basic Info
</div>
<div class="card-body">
@if ($errors->any())
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<div class="form-group">
<label for="title">Course Title</label>
<input type="text" name="title" class="form-control text-lg" id="title" placeholder="">
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="code">Course Code</label>
<input type="text" name="code" class="form-control text-lg" id="code" placeholder="">
</div>
<div class="form-group">
<label for="creditvalue">Credit Value</label>
<input type="number" name="creditvalue" class="form-control text-lg" id="creditvalue" placeholder="">
</div>
</div>
<div class="col-md-6">
<div class="form-group">
<label for="mqflevel">MQF Level</label>
<input type="number" name="mqflevel" class="form-control text-lg" id="mqflevel" placeholder="">
</div>
<div class="form-group">
<label for="affectedbatch">Affected Batch</label>
<input type="text" name="affectedbatch" class="form-control text-lg" id="affectedbatch" placeholder="">
</div>
</div>
</div>
<div class="form-group">
<label for="kulliyyah">Centre of Studies</label>
<select type="text" class="form-control text-lg" name="kulliyyah" id="kulliyyah">
<option value="Kulliyyah of Information and Communication Technology">Kulliyyah of Information and Communication Technology</option>
<option value="Kulliyyah of Education">Kulliyyah of Education</option>
<option value="Kulliyyah of Engineering">Kulliyyah of Engineering</option>
<option value="Kulliyyah of Architecture and Environmental Design">Kulliyyah of Architecture and Environmental Design</option>
</select>
</div>
<div class="form-group">
<label for="department">Department/Unit</label>
<select type="text" class="form-control text-lg" name="department" id="department">
<option value="Department of Computer Science">Department of Computer Science</option>
<option value="Department of Information System">Department of Information System</option>
</select>
</div>
<div class="form-group">
<label for="synopsis">Course Synopsis</label>
<textarea type="text" class="form-control text-lg" name="synopsis" rows="5" id="synopsis" placeholder=""></textarea>
</div>
<div class="form-group">
<label for="classification">Course Classification within the Curriculum</label>
<input type="text" class="form-control text-lg" name="classification" id="classification" placeholder="eg: CSC 1305">
</div>
<div class="form-group">
<label for="prerequisite">Prerequisite(s) (if any)</label>
<input type="text" class="form-control text-lg" name="prerequisite" id="prerequisite" placeholder="">
</div>
</div>
<div class="card-footer text-right">
<button type="submit" class="btn btn-primary">Next</button>
</div>
</div>
</form>
step2.blade.php
<form action="{{ route('form.create.step.two.post') }}" method="POST">
@csrf
<div class="card">
Step 2: Course Learning Outcomes</div>
<div class="card-body">
@if ($errors->any())
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<div class="form-group">
<label for="proposal_id">Proposal ID</label>
<input type="text" class="form-control text-lg" name="proposal_id" id="proposal_id" placeholder="">
</div>
<div class="table-responsive">
<form method="post" id="dynamic_form">
<span id="result"></span>
<table class="table table-bordered" id="user_table">
<thead>
<tr class="table-active">
<th rowspan="2">No.</th>
<th rowspan="2" class="w-50">Outcomes</th>
<th colspan="3" class="w-25">Bloom's Taxonomy</th>
<th rowspan="2">Soft skills (KI)</th>
<th rowspan="2">Programme Outcomes (PO)</th>
<th rowspan="2"><a href="javascript:;" class="btn btn-info addRow">Add</a></th>
</tr>
<tr class="table-active">
<th>C</th>
<th>A</th>
<th>P</th>
</tr>
</thead>
<tbody>
<tr>
<td><input class="form-control text-lg" name="lo_id[]"/></td>
<td><textarea class="form-control text-lg" name="outcomes[]"></textarea></td>
<td><input class="form-control text-lg" name="bloom_c[]"/></td>
<td><input class="form-control text-lg" name="bloom_a[]"/></td>
<td><input class="form-control text-lg" name="bloom_p[]"/></td>
<td><input class="form-control text-lg" name="ki[]"/></td>
<td><input class="form-control text-lg" name="po[]"/></td>
<td><a href="javascript:;" class="btn btn-danger deleteRow">Remove</a></td>
</tr>
</tbody>
</table>
</form>
</div>
</div>
<div class="card-footer">
<div class="row">
<div class="col-md-6 text-left">
<a href="{{ route('form.create.step.one') }}" class="btn btn-danger pull-right">Previous</a>
</div>
<div class="col-md-6 text-right">
<button type="submit" class="btn btn-primary ">Next</button>
</div>
</div>
</div>
</div>
</form>
其他5个步骤基本都是这样。
我当前的问题是如何获取第一个表单（step1）的proposal_id作为对接下来6个表单的引用。proposal_id 用作其他表的外键。proposal_id 在表中自动递增。
我把它们分成很多表格的原因是表格的某些部分是表格格式，如step2.blade.php所示。下面的图片作为参考。
目前，正如您在代码中看到的那样，我当前的解决方案是在每个表单中手动输入proposal_id（这是不切实际的，因为他们一开始不知道proposal_id）。我当前的代码没有问题。它可以正常保存到数据库中。
我该如何解决这个问题？或者还有其他方法可以填写此表格吗？先感谢您。
解决方案
你有两个解决方案，我看到的第一个是将proposal_id作为路由的参数传递（见下文）。
Route::get('/form/learning-outcomes{proposal_id}', [App\Http\Controllers\Lect\Form\Step2Controller::class, 'createStepTwo'])->name('form.create.step.two');
第二个是将它保存在您的会话变量中，您可以通过您的表单访问它
session()->put('proposal_id', $proposal_id)
要以第二种形式获取它，请使用：
session()->get('proposal_id')
更新 确保在迁移文件中添加这一行：
$table->id('proposal_id')
其中proposal_id 是您的主键自动增量。默认情况下，如果您没有将任何内容作为 id 参数，它将在您的列表中为 id。
$table->id()//COLUMN TABLE WILL CONTAINT id as name
$table->id('proposal_id')//COLMUN TABLE WILL CONTAINT proposal_id as name