/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

2 votes113 views3 answers
Laravel migration drop foreign keys
PHP
0 vote109 views1 answer
Php display result from html
PHP
5 votes104 views6 answers
Hello world in php
PHP
2 votes103 views1 answer
Php ternary shorthand
PHP
33 votes110 views4 answers
Make:controller in laravel 8
PHP
0 vote173 views1 answer
Hummingbird remove caching specific page php
PHP
8 votes113 views4 answers
Blade comment
PHP
1 vote133 views1 answer
How to get current location in laravel
PHP Laravel
9 votes109 views3 answers
$_SESSION php example
PHP
0 vote105 views1 answer
Distance between two locations in php
PHP