laravel filter on relationship - laravel

Question

hi i have this relationships with these 3 models
Customers
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Customers extends Model
{
public $primaryKey = 'id';
protected $fillable = [
'contr_nom',
'contr_cog',
'benef_nom',
'benef_cog',
'email',
'polizza',
'targa',
'iban',
'int_iban',
'cliente',
];
public function claims()
{
return $this->hasMany(Claims::class);
}
public function refunds()
{
return $this->hasManyThrough(Refunds::class, Claims::class);
}
}
Claims
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Claims extends Model
{
public $primaryKey = 'id';
protected $fillable = [
'dossier',
'date_cla',
];
public function refunds()
{
return $this->hasMany(Refunds::class);
}
public function customers()
{
return $this->belongsTo(Customers::class,'customers_id');
}
}
and Refunds
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Refunds extends Model
{
public $primaryKey = 'id';
protected $fillable = [
'date_ref',
'status_ref',
'disactive',
];
public function services()
{
return $this->belongsToMany(Services::class)
->withPivot(['services_id','services_amount','services_status']);
}
public function claims()
{
return $this->belongsTo(Claims::class,'claims_id');
}
}
i have this in the controller (part of the code)
$data = Claims::with(array('customers'=>function($query){
$query->select('id','contr_nom','contr_cog','targa','email','gcliente');
}))->get();
it works, i can get customers information (parent table) for each dossier ( i put in a datatables)
But i cannot insert another filter based on Refunds table.
I need to show only dossiers where
['status_ref', '>',4]
the problem is that status_ref is in Refunds table
i tried to do somthing like this but no works
$data = Claims::with(array('customers'=>function($query){
$query->select('id','contr_nom','contr_cog','targa','email','gcliente');
}))->refunds()
->where('status_ref', '>',4)
->get();
I cannot understand why....
Thx

Answer 1

You have to use whereHas like:
$data = Claims::with(array('customers'=>function($query){
$query->select('id','contr_nom','contr_cog','targa','email','gcliente');
}))
->whereHas('refunds', function (Builder $query) {
$query->where('status_ref', '>', 4);
})
->get();