Question

我一直在使用一个查询，该查询需要计算一组相关表中不同组合的项目。

结构为：

imageviews
----------
-imageId
-productId
-time
-browser
-os

clicks
------
clickId
imageId
time

downloads
---------
downloadId
clickId
time

如果我将雄辩的语言用于优先加载并按两个字段分组，则可以看到“点击”关系，但是我无法计算“浏览器”和“操作系统”每对的每个组合的结果。

>>> $deliveries = App\Delivery::with('clicks')->groupBy('browser','os')->get();

我试图用Eloquent的查询汇总计数，但没有成功的结果。例如，我在定义关系的地方添加了三个模型（Imageview，Click，Downloads）。

ImageView.php

<?php


namespace App;

use Illuminate\Database\Eloquent\Model;

class ImageView extends Model
{
    public $timestamps = false;
    protected $primaryKey = 'imageId';
    protected $keyType = 'string';
    public $incrementing = false;
    protected $fillable = ['imageId', 'product_id', 'time', 'browser', 'os', 'site'];


    public function clicks()
    {
        return $this->hasMany(Click::class, 'imageId', 'imageId');
    }
}

Click.php

<?php


namespace App;

use Illuminate\Database\Eloquent\Model;

class Click extends Model
{
    public $timestamps = false;
    protected $primaryKey = 'clickId';
    protected $keyType = 'string';
    public $incrementing = false;
    protected $fillable = ['deliveryId', 'clickId', 'time'];

    public function imageview()
    {
        return $this->belongsTo(App\ImageView::class, 'imageId', 'imageId');
    }

    public function downloads()
    {
        return $this->hasMany(App\Install::class, 'clickId', 'clickId');
    }
}

Download.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Download extends Model
{
    public $timestamps = false;

    protected $fillable = ['downloadId', 'clickId', 'time'];

    public function click()
    {
        return $this->belongsTo(App\Install::class, 'clickId', 'clickId');
    }
}

我的目标是构建可生成如下结果的JSON：

{
    "interval": {
        "start": "2018-01-07T14:30:00+0000",
        "end": "2018-01-07T18:20:00+0000" },
    "data": [ {
        "fields": {
            "browser": "Chrome", 
            "os": "Android"
        }, "stats": {
           "imageviews": 10,
           "clicks": 4,
           "downloads": 1
        }
    },
    {
        "fields": {
            "browser": "Safari",
            "os": "iOS"
         },
         "stats": {
            "imageviews": 2,
            "clicks": 1,
            "downloads": 1
         }
    },
    {
        "fields": {
            "browser": "Chrome", 
            "os": "iOS"
        }
        "stats": {
           "imageviews": 15,
           "clicks": 5,
           "downloads": 3
        } }
    ]
}

我怎么能得到这个？如果需要，我很乐意提供其他信息。

计算三个字段并按三个相关表分组

0 个答案: