Troubling problem to show sub-categories in the Categories Dropdown list
in my code,i want to show category and sub catagory under the Category in the Products table .
Here is my categories table
1.
public function up() { Schema::create('categories', function (Blueprint $table) {
$table->increments('id');
$table->integer('parent_id'); //sub category id
$table->string('name');
$table->rememberToken();
$table->timestamps();
});
}
Here is my products table
2.
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->increments('id');
$table->integer('category_id');
$table->string('product_name');
$table->timestamps();
});
}
Here is my Category Mode l
3.Category.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Category extends Model { protected $guarded=[];
public function products(){
return $this->hasMany('App\Product');
}
public function parent(){
return $this->belongsTo('App\Category','parent_id','id');
}
}
Here is my Product Model
4.Product.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
public function category(){
return $this->hasone('App\Category');
}
}
Now here is my ProductsController.php
5.ProductsController.php
<?php
namespace App\Http\Controllers;
use App\Category;
use App\Product;
use Session;
use Illuminate\Http\Request;
class ProductsController extends Controller
{
public function product(){
return view('admin.products.product');
}
}
Here is my product.blade.php file
<form class="form-horizontal" method="post" action="{{route('add.product')}}" name="add_product" id="add_product" novalidate="novalidate">
@csrf
<div class="control-group">
<label class="control-label">Under Category </label>
<div class="controls">
<select name="category_id" id="category_id" style="width:220px;" >
<option value='' selected disabled>Select</option>
@foreach(App\Category::all() as $cat)
<option value="{{$cat->id}}" >
{{ $cat->parent ? $cat->parent->name .' -- ' : '' }}
{{$cat->name}}
</option>
@endforeach
</select>
</div>
</div>
<div class="control-group">
<label class="control-label">Product Name</label>
<div class="controls">
<input type="text" name="product_name" id="product_name">
</div>
</div>
<div class="form-actions">
<input type="submit" value="submit" class="btn btn-success">
</div>
</form>
thats why i use this code product.blade.php
@foreach(App\Category::all() as $cat)
<option value="{{$cat->id}}" >
{{ $cat->parent ? $cat->parent->name .' -- ' : '' }}
{{$cat->name}}
</option>
@endforeach
@foreach(App\Category::all() as $cat)
<option value="{{$cat->id}}" >
{{ $cat->parent ? '--' . $cat->name : $cat->parent->name }}
</option>
@endforeach
I think the result would be something like this. If not has parent render category $cat->parent->name
. If has parent render sub-category '--'. $cat->name
'--'. $cat->name
.
Shoes
-- Casual Shoes
I hope it helps you
Category.php - add child relation
public function children(){
return $this->hasMany('App\Category','id','parent_id');
}
product.blade.php
<select name="category_id" id="category_id" style="width:220px;" >
<option value='' selected disabled>Select</option>
@foreach(App\Category::where('parent_id', 0)->get() as $parent)
<option value="{{$parent->id}}">
{{ $parent->name }}
</option>
@foreach($parent->children as $child)
<option value="{{$child->id}}">
-- {{$child->name}}
</option>
@endforeach
@endforeach
</select>
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