Laravel. Use scope() in models with relation

📝 Title: Boost Your Laravel Model Relations with scope()

👋 Hey there, fellow Laravel enthusiasts! Are you struggling with using the scope() method in your Laravel models with relations? Fear not, because I'm here to guide you through the process in a clear and concise manner. Let's dive right in! 💻

🤔 The Problem: "Call to undefined method published()"

So, you have two related models, Category and Post. You have implemented a published() scope method in your Post model to filter out unpublished posts. However, when you try to get all categories with that scope using Category::with('posts')->published()->get(), you encounter an error: "Call to undefined method published()".

🛠️ The Solution: Making the Scope Method Accessible

To resolve this issue, you need to adjust your code slightly. Let's take a closer look at your Category and Post models.

The Category model seems to be correctly set up with the posts() relation method:

class Category extends \Eloquent
{
    public function posts()
    {
        return $this->HasMany('Post');
    }
}

On the other hand, your Post model is also set up correctly with the category() relation method. Kudos to that! However, the issue lies in how you are trying to invoke the scope method.

To make the published() scope method accessible, modify your code in the Category model to include a closure function:

class Category extends \Eloquent
{
    public function posts()
    {
        return $this->HasMany('Post');
    }

    public function scopePublished($query)
    {
        return $query->where('published', 1);
    }

    // The closure function that enables the scope invocation.
    public function published()
    {
        return $this->posts()->published();
    }
}

By adding the published() closure function, you can now chain the published() scope method onto your Category model and enjoy the desired results without encountering any undefined method errors. 🎉

🔍 Example Usage: Grabbing Published Categories

With the code adjustments in place, you can now fetch all categories with published posts using the following code:

$categories = Category::with('posts')->published()->get();

Voilà! With this simple modification, you'll be able to fetch categories with their associated published posts without breaking a sweat. 🏋️

📣 Call-to-Action: Share Your Laravel Success Story

I hope this guide has helped you resolve the issue of using scope() in models with relations in Laravel. Now, it's your turn! Share your Laravel success stories or any other Laravel-related questions and experiences in the comments section below. Let's engage in some productive discussions and help each other grow as Laravel developers. 🚀

Happy coding and until next time, folks! 👋💙