Get all categories that have a specific model

[MostafaNorzade]

how to get all categories for a specific model?

Do I have to write it myself?

$categories_id = DB::table('categorizables')
                                ->where('categorizable_type', Blog::class)
                                ->pluck('category_id');

$blog_categories = app('rinvex.categories.category')->whereIn('id', $categories_id)->get();

Is there a method for this?

[Omranic]

Simple, it's a normal Eloquent Polymorphic relationship. Just use:

// Get instance of your model
$blog = new \App\Models\Blog::find();

// Get attached categories collection
$blog->categories;

More details: https://github.com/rinvex/laravel-categories#manage-your-categorizable-model

[MostafaNorzade]

Thanks. but I meant how to get all the categories related to the ‍‍blog. Not how I want to get the categories of a specific blog !!

[Omranic]

I'm not sure how you manager your categories, but how I imagine using this package for a similar use case, I'd create a root category for all blog categories, so I can also use categories for other stuff like products, forums, or whatever. If you've a root category for blog, then it's still easy to get all blog categories $rootBlogCategory->children

I hope that helps, if not, feel free to re-open this issue and explain your use case in more details.

[MostafaNorzade]

Thank. My main need is for when I want to show blog categories in the blog sidebar of the blog or in the sidebar of the store, and I need to list the categories that are used for the products. The method provided by you is not bad either