How to pass parameter to model function from view? - php

Question

I have tree structure of categories. Now I have to display only that categories which is not applied in a particular business.
Code in Controller
public function edit($id)
{
try
{
$id=Crypt::decrypt($id);
$business=Business::findOrFail($id);
$business_contact_details=BusinessContactDetails::where('business_id',$id)->select('contact_no','id')->get();
$business_working_hours=BusinessWorkingHours::where('business_id',$id)->get();
$business_categories=BusinessCategories::leftJoin('categories','categories.id','=','category_id')->where('business_id',$id)->where('categories.parent_id','0')->select('categories.name as name','approved','category_id','business_categories.id as id')->get();
$categories = Categories::where('parent_id', '=', 0)->get();
return view('admin.businesses.edit',compact('business','business_contact_details','business_working_hours','categories','category_counter','business_categories'));
}
catch(DecryptException $e)
{
return view('errors.404');
}
}
Code in Model
public function subChilds(){
return $this->hasMany('App\Categories','parent_id','id')->whereNotExists(function($query){
$query->from('business_categories')->whereRaw('categories.id=business_categories.category_id')->where('business_id',2);
});
}
Code in edit View
<div class="col-md-6">
<ul id="tree1">
#foreach($categories as $category)
<li>
<input type="checkbox" value="{{$category->id}}" name="categories[]">
{{ $category->name }}
#if(count($category->subChilds($business->id)))
#include('admin.businesses.manageChildSub',['subChilds' => $category->subChilds($business->id)])
#endif
</li>
#endforeach
</ul>
</div>
Code in manageChildSub View
<ul>
#foreach($subChilds as $child)
<li>
<input type="checkbox" value="{{$child->id}}" name="categories[]">
{{ $child->name }}
#if(count($child->childs))
#include('manageChildSub',['subChilds' => $child->subChilds($business->id)])
#endif
</li>
#endforeach
</ul>
Here, You can see that I have passed business_id as 2, but I have to pass it as my current business ID. Basically I need to call the model function with ID.
After changing to this, I am not getting any subcategories.

Answer 1

You can try this:
public function subChilds($business_id){
return $this->hasMany('App\Categories','parent_id','id')
->whereNotExists(function($query) use ($business_id){
$query->from('business_categories')
->whereRaw('categories.id=business_categories.category_id')
->where('business_id', $business_id);
});
}