Laravel check if relation is empty

Question

I have an object with some relationships and I need to check if these relations are empty or not, I'm trying to check with is_null, isset, != undefined, etc but nothing works, here is the relationship I get when it's empty :

object(Illuminate\Database\Eloquent\Collection)#197 (1) {   ["items":protected]=>     array(0) {   } } 

Is there a way to check this easily ? Thanks.

Answer 1

There are a variety of ways to do this.

In the query itself, you can filter models that do not have any related items:

Model::has('relation')->get() 

Once you have a model, if you already have loaded the collection, you can check the count of the collection:

$model->relation->count(); 

If you want to check without loading the relation, you can run a query on the relation:

$model->relation()->exists() 

Note: Replace relation with the name of your relationship in the above examples.

Answer 2

If model already have loaded relationship, you can determine the variable is null or call isEmpty() to check related items:

// For one relation: if ( $model->relation ) {     // ... } else {     // $model->relation is null }  // For many relations: if ( $model->relation->isEmpty() ) {     // ... }