/PHP/Calculate average in eager loading laravel

Calculate average in eager loading laravel

public function reviewRows()
{
    return $this->hasManyThrough('ReviewRow', 'Review');
}

public function avgRating()
{
    return $this->reviewRows()
      ->selectRaw('avg(rating) as aggregate, product_id')
      ->groupBy('product_id');
}

public function getAvgRatingAttribute()
{
    if ( ! array_key_exists('avgRating', $this->relations)) {
       $this->load('avgRating');
    }

    $relation = $this->getRelation('avgRating')->first();

    return ($relation) ? $relation->aggregate : null;
}

Source: stackoverflow.com

Similar codes

0 vote272 views1 answer
Install shopware
PHP
0 vote390 views1 answer
Latavel attach method
PHP
0 vote309 views1 answer
Provide difference between interface and abstract class php
PHP
5 votes323 views2 answers
Autoloader php
PHP
53 votes472 views6 answers
Laravel join
PHP Laravel
10 votes332 views6 answers
Laravel Pagination
PHP
8 votes288 views3 answers
Get class name from object php
PHP
0 vote341 views1 answer
Install phpmyadmin on vagrant homestead on mac
PHP
1 vote265 views1 answer
Check if string is base64 php
PHP
0 vote341 views1 answer
Laravel list unique indexes
PHP