回答編集履歴
3
修正
test
CHANGED
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@@ -1,9 +1,105 @@
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```php
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$data = [['name'=>'リンゴ','chk'=>0],
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['name'=>'バナナ','chk'=>1],
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['name'=>'オレンジ','chk'=>0]];
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```
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>sample</title>
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<meta charset="utf-8">
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</head>
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<body>
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<select>
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@foreach($data as $value)
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<option
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<option {{isset($value['chk']) && $value['chk'] == 1 ? 'selected':''}}>{{$value['name']}}</option>
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@endforeach
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</select>
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</body>
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</html>
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```
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データの持ち方は少し違うかもしれませんが、三項演算子を使ったやり方ならこんな感じになります。質問者さんの場合は、ちゃんとデータ自体は保持できているようなので単純に三項演算子の条件に当てはまってない可能性がありますね。「===」を「==」にすれば引っかかるとかあるかもしれません。
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redirect処理でデータを持ち運びしたい場合は、一度sessionに格納してそれを取り出す形で実現できます。
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```route
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route
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Route::get('/index', 'TestController@index');
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Route::post('/processing', 'TestController@processing');
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```
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```php
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TestController
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//view
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public function index()
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{
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if($request->session()->has('data') == true)
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{
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$data = $request->session()->get('data');
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$request->session()->forget('data');
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}
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}
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public function processing()
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{
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$data = 'test';
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$request->session()->put('data',$data);
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return redirect('/index');
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}
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```
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2
修正
test
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@@ -1,97 +1,9 @@
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```html
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<option value="{{$jtype['id']}}"{{isset($item['value']['jtype0']) && $item['value']['jtype0'] === $jtype['id'] ? 'selected' : ''}}>{{$jtype['name']}}</option>
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```
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```php
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$data = [['name'=>'リンゴ','type'=>'果物'],
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['name'=>'ポテチ','type'=>'おかし'],
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['name'=>'コーヒー','type'=>'飲料']];
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```
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>sample</title>
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<meta charset="utf-8">
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</head>
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<body>
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<select name='type'>
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@foreach($data as $value)
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<option>{{$value['type']}}</option>
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@endforeach
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</select>
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<select name='name'>
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@foreach($data as $value)
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<option data-type="{{$value['type']}}">{{$value['name']}}</option>
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@endforeach
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</select>
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
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<script>
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$("[name=type]").change(function(){
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var type = $(this).val();
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$("[name=name] option").each(function() {
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selectedの前に空白があったので消しました。このあたりが原因かもしれませんね。
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var data = $(this).val();
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if(type === type2)
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{
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$("[name=name]").val(data);
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}
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});
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});
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</script>
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</body>
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</html>
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```
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1
修正
test
CHANGED
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@@ -1,10 +1,14 @@
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コメントを元にコードを書き直してみました。javascriptを使ってます。とりあえずこれで切り替えの連動はできますが、データの持ち方にもよりますね。
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```php
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$data = ['
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$data = [['name'=>'リンゴ','type'=>'果物'],
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['name'=>'ポテチ','type'=>'おかし'],
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['name'=>'コーヒー','type'=>'飲料']];
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```
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@@ -24,48 +28,70 @@
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<body>
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<select>
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<select name='type'>
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@foreach($data as $value)
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<option
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<option>{{$value['type']}}</option>
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@endforeach
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</select>
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<select name='name'>
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@foreach($data as $value)
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<option data-type="{{$value['type']}}">{{$value['name']}}</option>
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@endforeach
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</select>
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
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<script>
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$("[name=type]").change(function(){
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var type = $(this).val();
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$("[name=name] option").each(function() {
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var type2 = $(this).data('type');
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var data = $(this).val();
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if(type === type2)
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{
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$("[name=name]").val(data);
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}
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});
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});
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</script>
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</body>
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</html>
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```
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45
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こんな感じでできます。optionの中にif文書くの気持ちわりぃ！という場合は
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46
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47
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48
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```html
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<select>
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@foreach($data as $value)
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@if($value == 'ばなな')
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<option selected>{{$value}}</option>
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@else
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<option>{{$value}}</option>
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@endif
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@endforeach
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</select>
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```
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これでもいけますね。
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