Laravel 5.2 如何使用多个 select 填充编辑表单?
Laravel 5.2 How to populate edit form with multiple select?
我想创建一个包含几个城市的区域。所以我决定使用 jQuery Select2
这是我创建的表格 multiple selection
<div class="form-group {{ $errors->has('cities') ? 'has-error' : '' }}">
<label>Tentukan Kota</label>
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
@foreach($cities as $city)
<option value="{{ $city->id }}">{{ $city->name }}</option>
@endforeach
</select>
</div>
我可以多个 select 就像在文档中一样。
这是我的控制器,它处理显示创建表单
public function zone_create()
{
$cities = City::where('zone_id', null)->get();
return view('backend.admin.pricings.zone_create', compact('cities'));
}
关系是一个区域有多个城市。
class Zone extends Model
{
protected $fillable = [
'name',
];
public function cities(){
return $this->hasMany(City::class);
}
}
城市属于地区
class City extends Model
{
protected $fillable = [
'zone_id',
'name',
];
public function zone(){
return $this->belongsTo(Zone::class);
}
}
这是我的编辑方法
public function edit($id)
{
$zone = Zone::find($id);
$cities = City::all();
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities'));
}
这是我到目前为止的编辑表单
<div class="form-group {{ $errors->has('cities') ? 'has-error' : '' }}">
<label>Tentukan Kota</label>
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
//load option from cities table
//set selected the city belongs to zone
//the other city which don't belong to zone still here for option
</select>
</div>
但是我如何使用 City belongs to zone 填充我的编辑表单(多个 selection)?
在您的编辑功能中,您可以获得该特定区域的所有城市
$zone_cities = implode(',',$zone->cities->lists('name')->toArray());
并在您的视图中传递 $zone_cities
。
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities','zone_cities'));
您必须在视图中使用表单模型绑定
[此处]阅读 laravel 集合形式模型绑定。1
您将像这样打开您的表格
您的编辑表单将是这样的
{!! Form::label('cities','Cities: ') !!}
{!! Form::text('cities',$zone_cities,['class'=>'input','id'=>'cities','aria-required'=>'true','data-seperator'=>',']) !!}
在我看来就是这样
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
@foreach($cities as $city)
@if(in_array($city->id, $zoneCityIds))
<option value="{{ $city->id }}" selected="true">{{ $city->name }}</option>
@else
<option value="{{ $city->id }}">{{ $city->name }}</option>
@endif
@endforeach
</select>
在我的控制器中像这样
public function zone_edit($id)
{
$zoneCityIds = [];
$zone = Zone::find($id);
$cities = City::all();
foreach($zone->cities as $zoneCity)
{
$zoneCityIds[] = $zoneCity->id;
}
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities', 'zoneCityIds'));
}
其实就是选项标签 selected="true"
对于多个值只需使用
<div class="form-group">
{!! Form::label('Categories') !!}<br />
{!! Form::select('categories[]', $cost_centers,
$post->categories->pluck('id')->toArray(),
['class' => 'form-control',
'multiple' => 'multiple']) !!}
</div>
我想创建一个包含几个城市的区域。所以我决定使用 jQuery Select2
这是我创建的表格 multiple selection
<div class="form-group {{ $errors->has('cities') ? 'has-error' : '' }}">
<label>Tentukan Kota</label>
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
@foreach($cities as $city)
<option value="{{ $city->id }}">{{ $city->name }}</option>
@endforeach
</select>
</div>
我可以多个 select 就像在文档中一样。
这是我的控制器,它处理显示创建表单
public function zone_create()
{
$cities = City::where('zone_id', null)->get();
return view('backend.admin.pricings.zone_create', compact('cities'));
}
关系是一个区域有多个城市。
class Zone extends Model
{
protected $fillable = [
'name',
];
public function cities(){
return $this->hasMany(City::class);
}
}
城市属于地区
class City extends Model
{
protected $fillable = [
'zone_id',
'name',
];
public function zone(){
return $this->belongsTo(Zone::class);
}
}
这是我的编辑方法
public function edit($id)
{
$zone = Zone::find($id);
$cities = City::all();
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities'));
}
这是我到目前为止的编辑表单
<div class="form-group {{ $errors->has('cities') ? 'has-error' : '' }}">
<label>Tentukan Kota</label>
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
//load option from cities table
//set selected the city belongs to zone
//the other city which don't belong to zone still here for option
</select>
</div>
但是我如何使用 City belongs to zone 填充我的编辑表单(多个 selection)?
在您的编辑功能中,您可以获得该特定区域的所有城市
$zone_cities = implode(',',$zone->cities->lists('name')->toArray());
并在您的视图中传递 $zone_cities
。
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities','zone_cities'));
您必须在视图中使用表单模型绑定 [此处]阅读 laravel 集合形式模型绑定。1
您将像这样打开您的表格
您的编辑表单将是这样的
{!! Form::label('cities','Cities: ') !!}
{!! Form::text('cities',$zone_cities,['class'=>'input','id'=>'cities','aria-required'=>'true','data-seperator'=>',']) !!}
在我看来就是这样
<select name="cities[]" class="city form-control" data-placeholder="Pilih Kota" style="width: 100%;" multiple="multiple">
@foreach($cities as $city)
@if(in_array($city->id, $zoneCityIds))
<option value="{{ $city->id }}" selected="true">{{ $city->name }}</option>
@else
<option value="{{ $city->id }}">{{ $city->name }}</option>
@endif
@endforeach
</select>
在我的控制器中像这样
public function zone_edit($id)
{
$zoneCityIds = [];
$zone = Zone::find($id);
$cities = City::all();
foreach($zone->cities as $zoneCity)
{
$zoneCityIds[] = $zoneCity->id;
}
return view('backend.admin.pricings.zone_edit', compact('zone', 'cities', 'zoneCityIds'));
}
其实就是选项标签 selected="true"
对于多个值只需使用
<div class="form-group">
{!! Form::label('Categories') !!}<br />
{!! Form::select('categories[]', $cost_centers,
$post->categories->pluck('id')->toArray(),
['class' => 'form-control',
'multiple' => 'multiple']) !!}
</div>