Laravel Check if the Model has a Relationship

Today, We want to share with you Laravel Check if the Model has a Relationship.In this post we will show you wordpress plugin require another plugin, hear for check if relationship is not null laravel we will give you demo and example for implement.In this post, we will learn about laravel check if specific relationship exists with an example.

There are the Following The simple About Check if RelationShip exists between two specific models Full Information With Example and source code.

As I will cover this Post with live Working example to develop Check if relations are loaded on Eloquent Model in Laravel 6, so the Laravel: How to check if a relation was loaded on an Eloquent model already? is used for this example is following below.

READ : Laravel Has Many Through Eloquent Relationship Example

How to check if the Eloquent Model has a relationship with another Model

using count()

if (count($model->$relation))
{
	// There is at least one any type of the database relationship
}

Laravel Check If Related Model Exists

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

Laravel single relations:

hasOne / belongsTo / morphTo / morphOne

$model->relation;
count($model->relation);

// there is one
$model->relation;
count($model->relation);

Laravel to-many relations:

hasMany / belongsToMany / morphMany / morphToMany / morphedByMany

$model->relation;
count($model->relation);

$model->relation;
count($model->relation);

use exists method

Product::find($id)->option()->exists();

For example hasOne and belongsTo

if(!is_null($model->relation)) {
   ....//some code
}

For Example: hasMany and belongsToMany

if ($model->relation->isNotEmpty()) {
   ....//some code
}

From outside of your Laravel model

$product = Product::first();
//
if ($product->relationLoaded("reviews")) {
  //
}

Web Programming Tutorials Example with Demo

Read :

Summary

You can also read about AngularJS, ASP.NET, VueJs, PHP.

READ : Vuejs Implementing Routes And Multiple Views Example

I hope you get an idea about laravel check if relationship has data.
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