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我跟着這個源代碼的教程專用的查詢字符串過濾: https://github.com/laracasts/Dedicated-Query-String-Filtering/tree/master/appLaravel 5 - 許多一對多的關係
如果你有laracasts你可以觀看視頻here
我喜歡什麼實現是基於其類別的過濾產品。
當我對產品本身進行過濾,它工作正常
class ProductFilter extends QueryFilter
{
public function categorie($name)
{
return $this->builder->where('name' , $name);
}
}
但是當我嘗試對關係過濾它好好嘗試的工作。 (我也沒有得到任何錯誤)。 錯誤坐落在這個文件中,我認爲
class ProductFilter extends QueryFilter
{
public function categorie($name)
{
return $this->builder->categories()->where('name' , $name);
}
}
查看
<form method="get" action="/producten/categorie" style="display:inline-block">
@foreach($roots as $root)
<li><button type="submit" name="categorie" value="{{$root->name}}" class="button-link">{{$root->name}}</button></li>
@endforeach
</form>
路線
Route::get('producten/categorie' , '[email protected]');
FrontProductController
public function index(ProductFilter $filters)
{
Product::filter($filters)->get();
}
QueryFilter類
abstract class QueryFilter
{
protected $request;
protected $builder;
public function __construct(Request $request)
{
$this->request = $request;
}
public function apply(Builder $builder)
{
$this->builder = $builder;
foreach ($this->filters() as $name => $value) {
if (! method_exists($this, $name)) {
continue;
}
if (strlen($value)) {
$this->$name($value);
} else {
$this->$name();
}
}
return $this->builder;
}
public function filters()
{
return $this->request->all();
}
}
產品型號
public function categories()
{
return $this->belongsToMany('App\Category')->withTimestamps();
}
public function scopeFilter($query, QueryFilter $filters)
{
return $filters->apply($query);
}