I've got categories->subcategories one to many relation (one category can have many subcategories) but I can't get this to work, I've tried basically everything and don't know what to do next.
My migrations and seeds:
Categories:
Schema::create('categories', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->text('description');
$table->string('image_url');
$table->timestamps();
});
---------
DB::table('categories')->insert([[
'id' => 1,
'name' => 'Verbs',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => ''
],[
'id' => 2,
'name' => 'Nouns',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => ''
],[
'id' => 3,
'name' => 'Idioms',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => ''
],[
'id' => 4,
'name' => 'Adjectives',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => ''
]
]);
Subcategories:
Schema::create('subcategories', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->text('description');
$table->string('image_url');
$table->integer('category_id')->unsigned()->index;
$table->timestamps();
});
---------
DB::table('subcategories')->insert([[
'id' => 1,
'name' => 'Sport verbs',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Verbs')->pluck('id')->first()
],[
'id' => 2,
'name' => 'Cooking verbs',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Verbs')->pluck('id')->first()
],[
'id' => 3,
'name' => 'Business verbs',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Verbs')->pluck('id')->first()
],[
'id' => 4,
'name' => 'School verbs',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Verbs')->pluck('id')->first()
],[
'id' => 5,
'name' => 'Sport nouns',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Nouns')->pluck('id')->first()
],[
'id' => 6,
'name' => 'Sport idioms',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Idioms')->pluck('id')->first()
],[
'id' => 7,
'name' => 'Sport adjectives',
'description' => 'Lorem ipsum dolor sit amet',
'image_url' => '',
'category_id' => DB::table('categories')->where('name', 'Adjectives')->pluck('id')->first()
],
]);
Models:
Category:
namespace App;
use Illuminate\Database\Eloquent\Model;
use App\Subcategory;
class Category extends Model
{
protected $table = 'categories';
protected $fillable = ['name', 'description', 'image_url', 'id'];
public function subcategories()
{
return $this->hasMany(Subcategory::class, 'category_id');
}
}
Subcategory:
namespace App;
use Illuminate\Database\Eloquent\Model;
use App\Category;
class Subcategory extends Model
{
protected $table = 'subcategories';
protected $fillable = ['name', 'description', 'image_url', 'category_id', 'id'];
public function category()
{
return $this->belongsTo(Category::class, 'category_id');
}
}
And in controller:
class CategoriesController extends Controller
{
public function index($id)
{
$subcategories = Category::findOrFail($id)->subcategories();
foreach ($subcategories as $subcategory)
echo $subcategory->name . '<br>';
}
}
Route:
Route::get('/category/{id}', 'CategoriesController@index');
So it's on url website.test/category/1
but it returns me nothing. If I just print name of category (so just work with category without its subcategories relations) it works. Just relations don't. I really have no idea already what can I do. Do you have any ideas?
Regards :)
Got answer, things to change were in controller:
$subcategories = Category::with('subcategories')->findOrFail($id);
And loop:
echo "<div>Category: {{$category->name}}</div>";
echo "<div>Subcategories:</div>";
foreach ($category->subcategories as $subcategory)
echo $subcategory->name . '<br>';
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