Laravel Eloquent Collection set relations

README.md

Usage

// Instead Of

$categories = Category::all();

$products = Products::all();

$products->each(function($product) use ($categories) {
  $product->setRelation('category', $categories->where('id',$product->category_id));
});


// Do

$categories = Category::all();
$products = Products::all();
$products->setRelations(['category' => $categories]);

macro.php

<?php

Illuminate\Database\Eloquent\Collection::macro('setRelations',function(array $relations){
    $mappedRelation = [];
    foreach($relations as $relationName => $relation) {
        $mappedRelation[$relationName] = $relation->mapWithKeys(function ($model) {
            return [$model->id => $model];
        });
        $this->each(function($item) use ($relationName,$mappedRelation){
            $property = "{$relationName}_id";
            $item->setRelation($relationName, $mappedRelation[$relationName][$item->{$property}]);
        });
    }
});