I am trying to calculate average ratings of a related column. The relationship (1->many) is in between Merchant & ClientFeedbackReviews Models.
Merchant Model
[Merchant Model]
::::::::::::::::::::::::::::
public function clientFeedbacks() {
return $this->hasMany('App\ClientFeedbackReviews'); //, 'merchant_id', 'id');
ClientFeedbackReviews
:::::::::::::::::::::::::::::::::::::::
class ClientFeedbackReviews extends Model {
protected $table = 'client_feedback_merchants';
public function forMerchant() {
return $this->belongsTo('App\Merchant', 'merchant_id', 'id');
}
public function byClient() {
return $this->belongsTo('App\Clients', 'client_id', 'id');
}
:::::::::::::::::::::::::::::::::::::
I need to get average ratings of all the merchant (as a PART of a query where I am calculating results-the merchants according to nearby distances, given location or a using search string depending upon the Request Data)
I have tried almost everything I found on internet but couldn't able to get 'average_ratings' key-value in results.
Here is one the many solutions that I have tried and pasting here as an example
/////// query continued //////////
$getMerchantQuery = $getMerchantQuery->with(['clientFeedbacks' => function($query) {
$query->select(DB::raw('AVG( stars) AS average_rating'));
}]);
/////// query continued //////////
and this the what I am getting ALWAYS - empty array for client_feedbacks whereas I want the average_rating right there.
{
"id": 1,
"user_id": 2,
"company_name": "Best Salon",
"primary_contact": "111111111",
"company_st_address": "Office # 62",
"company_location": "Abc",
"company_city": null,
"company_state": null,
"company_country": null,
"company_zip": null,
"company_lat": "27.9506",
"company_long": "82.4572",
"logo_image": "449cbdf0-12ba-11e7-bc65-b7fa1731e4d5.jpeg",
"is_fav_by_client_count": 3,
"client_feedbacks_count": 1,
"user_details": {
"id": 2,
"email": "client@lir.com"
},
"client_feedbacks": []
}
What are the options do we have to calculate avg of a related table ?
============ EDIT
However this returns results but not sure how to get the AVERAGE in client_feedbacks key.
$getMerchantQuery = $getMerchantQuery->with('clientFeedbacks');
as
{
"id": 1,
"user_id": 2,
"company_name": "Best Salon",
"primary_contact": "111111111",
"company_st_address": "Office # 62",
"company_location": "abc",
"company_city": null,
"company_state": null,
"company_country": null,
"company_zip": null,
"company_lat": "27.9506",
"company_long": "82.4572",
"logo_image": "449cbdf0-12ba-11e7-bc65-b7fa1731e4d5.jpeg",
"is_fav_by_client_count": 3,
"client_feedbacks_count": 1,
"user_details": {
"id": 2,
"email": "client@lbb.com"
},
"client_feedbacks": [
{
"id": 1,
"client_id": 1,
"merchant_id": 1,
"stars": 4,
"review_notes": "good client",
"created_at": null,
"updated_at": null
}
]
}
via Zeshan