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Laravel Check if the Model has a Relationship

Posted on December 6, 2019 By admin No Comments on 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.

Laravel Check if the Model has a Relationship

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.

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

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

Laravel Check If Related Model Exists

[php]
$model->relation()->exists()
[/php]

Laravel single relations:

hasOne / belongsTo / morphTo / morphOne
[php]
$model->relation;
count($model->relation);

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

Laravel to-many relations:

hasMany / belongsToMany / morphMany / morphToMany / morphedByMany
[php]
$model->relation;
count($model->relation);

$model->relation;
count($model->relation);
[/php]

use exists method
[php]
Product::find($id)->option()->exists();
[/php]

For example hasOne and belongsTo
[php]
if(!is_null($model->relation)) {
….//some code
}
[/php]

For Example: hasMany and belongsToMany
[php]
if ($model->relation->isNotEmpty()) {
….//some code
}
[/php]

From outside of your Laravel model
[php]
$product = Product::first();
//
if ($product->relationLoaded(“reviews”)) {
//
}
[/php]

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Web Programming Tutorials Example with Demo

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Related posts:

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  4. Laravel Has Many Through Eloquent Relationship Example
Technology, Laravel, MySQL, PHP Tags:Check if relations are loaded on Eloquent Model in Laravel 6, Check if RelationShip exists between two specific models, check if relationship is not null laravel, eloquent api, eloquent eager loading, laravel check if model belongs to user, laravel check if relation id exists, laravel check if relation is defined, laravel check if relationship has data, laravel check if specific relationship exists, laravel eloquent advanced tutorial, laravel eloquent methods, laravel model inheritance, laravel model without table, laravel nested relationships, laravel where no relation, Laravel: How to check if a relation was loaded on an Eloquent model already?

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