douqiju2520
2018-12-03 16:04
浏览 73
已采纳

Laravel Eloquent:hasManyThrough还是其他什么?

In Laravel 5.7 I have read the Has Many Through documentation but I still can't use it correctly for my case.

Here's the DB:

Analytics

    id
    data
    subscriber_id

Subscribers

    id
    city_id

Cities

    id
    name

I need the Analytics model to get data from Analytics with subscribers.id and cities.name

What I have done:

Connected Analytics and Subscribers models

<?php

class Analytics extends Model
{
    public function subscriber()
    {
        return $this->belongsTo('App\Models\Subscriber');
    }
}

class Subscriber extends Model
{
    public function analytics()
    {
        return $this->hasMany('App\Models\Analytics');
    }
}

Made a request that gets the data from the Analytics table with subscribers data:

$results = Analytics::where('survey_id', '4')
    ->with('subscriber')
    ->whereDate('created_at', '>=', $last_survey_date)
    ->orderBy('data')
    ->get();

If anybody has any ideas how to get city names, please, share it.

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3条回答 默认 最新

  • dsfg3241 2018-12-04 10:31
    已采纳

    Thank you Nick Surmanidze and Namoshek for your answers! I have found the way it works last night:

    class Subscriber extends Model
    {
        public function analytics()
        {
            return $this->hasMany('App\Models\Analytics');
        }
    
        public function subscriberCity()
        {
            return $this->belongsTo('Modules\Directories\Entities\City', 'city_id', 'id');
        }
    
    }
    
    
    class City extends Model
    {
        public function subscriber()
        {
            return $this->hasMany('App\Models\Subscriber');
        }
    }
    

    And the needed result can be get by this way:

    $results = Analytics::where('survey_id', '4')
        ->with(['subscriber' => function($i){
                $i->with(['subscriberCity']);
            }])
        ->whereDate('created_at', '>=', $last_survey_date)
        ->orderBy('data')
        ->get();
    
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