我尝试在我的视图上打印与小队x相关的所有atleti,但方法In[13]:
df.loc[df[6] == 'R',4] - df.loc[df[6] == 'F',4]
Out[13]:
0
188 11.14
750 47.47
1330 60.03
1385 12.70
Name: 4, dtype: float64
总是返回我的空数组。
你有什么想法让这个工作吗?
在下面,您可以找到我的代码和我的数据库结构。 Squadra是英语团队。一个团队可以与许多atleti相关联(它代表玩家)。
我认为外键存在一些问题。
感谢您的帮助。
$squadra->atleti()
公共函数getSquadra($ id) { $ squadra = Squadra :: find($ id);
<?php
//Squadra Model
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Squadra extends Model
{
protected $connection = 'custom_mysql';
protected $table = 'squadra';
/**
* Get the Allenatore for the Squadra.
*/
public function allenatore()
{
return $this->belongsTo('App\Models\Allenatore');
}
/**
* Get the Atleta for the Squadra.
*/
public function atleti()
{
return $this->hasMany('App\Models\Atleta');
}
}
<?php
//Atleta Model
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Atleta extends Model
{
protected $table = 'atleta';
protected $connection = 'custom_mysql';
/**
* Get the Atleta for the Squadra.
*/
public function squadra() {
return $this->belongsTo( 'App\Models\Squadra' );
}
}
<?php
//Controller
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;
class AtletaController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
这是 return view('custom.squadra.dettaglio', compact('squadra'));
}
//View
@foreach( $squadra->atleti() as $atleta )
<tr class="success">
<td>{{ $atleta->id }}</td>
<td>{{ $atleta->nome}}</td>
<td>{{ $atleta->cognome}}</td>
</tr>
@endforeach
的输出
答案 0 :(得分:0)
你发送atleti到视图,而不是squadra。尝试将控制器功能更改为:
public function index()
{
$squadra = Squadra::firstOrFail(); // You need a paremeter in a route that defines which squadra to show. This will show the first one.
return view('custom.atleta.index', compact('squadra'));
}