如何显示选择元素的旧数据

问题描述

我被困了2天，您知道如何在Laravel中显示select元素的旧数据吗?

I am stuck for 2 days, do you know how to show old data of select element in Laravel?

<select name="sexe" id="sexe" class="form-control">
 <option value="">Choice</option>
 <option>Women</option>
 <option>Man</option>
 </select>

我尝试过但没有成功:

<select class="form-control" name="sexe">
   <option value="male" @if (old('sexe') == 'male') selected="selected" @endif>male</option>
   <option value="female" @if (old('sexe') == 'female') selected="selected" @endif>female</option>
</select> 

我的控制器

public function edit($id)
{
        //
  $candidats = Candidat::find($id);
  $permis = Permis::all();
  return view('admin.candidats.edit', compact('candidats', 'permis'));
}

public function update(Request $request, $id)
{
     $request->validate([
           'sexe' => 'required|string',
           'fk_permis' => 'required'
    ]);

      $candidats = Candidat::find($id);
      $candidats->sexe = $request->get('sexe');
      $candidats->fk_permis = $request->get('fk_permis');
      $candidats->save();
        return redirect()->route('candidats.index')
                    ->with('success', 'mise à jour effectuée');
    }

1) index.blade.php

2) edit.blade.php

推荐答案

在您的更新函数中，放入withInput():

In your update function put withInput():

return redirect()->route('candidats.index')
                    ->with('success', 'mise à jour effectuée')->withInput();

您可以选择执行以下操作:

In your select you can do this:

<select class="form-control" name="sexe">
   <option value="male" @if (old('sexe') == 'male') selected="selected" @elseif($candidats->sexe == 'male') selected="selected" 
 @endif>male</option>
   <option value="female" @if (old('sexe') == 'female') selected="selected" @elseif($candidats->sexe == 'female') selected="selected" 
 @endif>female</option>
</select> 

我在这里从您的模型中加载了选定的选项

I loaded the selected option from your model here

@elseif($candidats->sexe == 'male') selected="selected"

因此，如果您在"sexe"属性中保存了男性"，则将选中此选项.

So, if you saved 'male' in your sexe attribute this option will be selected.

此处以了解更多信息:

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