问题
I currently have a table of page_views that records one row for each time a visitor accesses a page, recording the user's ip/id and the id of the page itself. I should add that the created_at column is of type: timestamp, so it includes the hours/minutes/seconds. When I try groupBy queries, it does not group same days together because of the seconds difference.
created_at page_id user_id
========== ======= =======
10-11-2013 3 1
10-12 2013 5 5
10-13 2013 5 2
10-13 2013 3 4
... ... ...
I'd like to get results based on views/day, so I can get something like:
date views
==== =====
10-11-2013 15
10-12 2013 45
... ...
I'm thinking I'll need to dig into DB::raw() queries to achieve this, but any insight would help greatly, thanks
Edit: Added clarification of created_at format.
回答1:
I believe I have found a solution to this, the key is the DATE() function in mysql, which converts a DateTime into just Date:
DB::table('page_views')
->select(DB::raw('DATE(created_at) as date'), DB::raw('count(*) as views'))
->groupBy('date')
->get();
However, this is not really an Laravel Eloquent solution, since this is a raw query.The following is what I came up with in Eloquent-ish syntax. The first where clause uses carbon dates to compare.
$visitorTraffic = PageView::where('created_at', '>=', \Carbon\Carbon::now->subMonth())
->groupBy('date')
->orderBy('date', 'DESC')
->get(array(
DB::raw('Date(created_at) as date'),
DB::raw('COUNT(*) as "views"')
));
回答2:
You can use Carbon (integrated in Laravel)
// Carbon
use Carbon\Carbon;
$visitorTraffic = PageView::select('id', 'title', 'created_at')
->get()
->groupBy(function($date) {
return Carbon::parse($date->created_at)->format('Y'); // grouping by years
//return Carbon::parse($date->created_at)->format('m'); // grouping by months
});
回答3:
Here is how I do it. A short example, but made my query much more manageable
$visitorTraffic = PageView::where('created_at', '>=', \Carbon\Carbon::now->subMonth())
->groupBy(DB::raw('Date(created_at)'))
->orderBy('created_at', 'DESC')->get();
回答4:
I had same problem, I'm currently using Laravel 5.3.
I use DATE_FORMAT()
->groupBy(DB::raw("DATE_FORMAT(created_at, '%Y-%m-%d')"))
Hopefully this will help you.
回答5:
You can filter the results based on formatted date using mysql (See here for Mysql/Mariadb help) and use something like this in laravel-5.4:
Model::selectRaw("COUNT(*) views, DATE_FORMAT(created_at, '%Y %m %e') date")
->groupBy('date')
->get();
回答6:
Like most database problems, they should be solved by using the database.
Storing the data you want to group by and using indexes you can achieve an efficient and clear method to solve this problem.
Create the migration
$table->tinyInteger('activity_year')->unsigned()->index();
$table->smallInteger('activity_day_of_year')->unsigned()->index();
Update the Model
<?php
namespace App\Models;
use DB;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Model;
class PageView extends Model
{
public function scopePerDay($query){
$query->groupBy('activity_year');
$query->groupBy('activity_day_of_year');
return $query;
}
public function setUpdatedAt($value)
{
$date = Carbon::now();
$this->activity_year = (int)$date->format('y');
$this->activity_day_of_year = $date->dayOfYear;
return parent::setUpdatedAt($value);
}
Usage
$viewsPerDay = PageView::perDay()->get();
回答7:
PageView::select('id','title', DB::raw('DATE(created_at) as date'))
->get()
->groupBy('date');
回答8:
To group data according to DATE instead of DATETIME, you can use CAST function.
$visitorTraffic = PageView::select('id', 'title', 'created_at')
->get()
->groupBy(DB::raw('CAST(created_at AS DATE)'));
回答9:
Warning: untested code.
$dailyData = DB::table('page_views')
->select('created_at', DB::raw('count(*) as views'))
->groupBy('created_at')
->get();
回答10:
Using Laravel 4.2 without Carbon
Here's how I grab the recent ten days and count each row with same day created_at timestamp.
$q = Spins::orderBy('created_at', 'desc')
->groupBy(DB::raw("DATE_FORMAT(created_at, '%Y-%m-%d')"))
->take(10)
->get(array(
DB::raw('Date(created_at) as date'),
DB::raw('COUNT(*) as "views"')
));
foreach ($q as $day) {
echo $day->date. " Views: " . $day->views.'<br>';
}
Hope this helps
回答11:
in mysql you can add MONTH keyword having the timestamp as a parameter in laravel you can do it like this
Payement::groupBy(DB::raw('MONTH(created_at)'))->get();
回答12:
I built a laravel package for making statistics : https://github.com/Ifnot/statistics
It is based on eloquent, carbon and indicators so it is really easy to use. It may be usefull for extracting date grouped indicators.
$statistics = Statistics::of(MyModel::query());
$statistics->date('validated_at');
$statistics->interval(Interval::$DAILY, Carbon::createFromFormat('Y-m-d', '2016-01-01'), Carbon::now())
$statistics->indicator('total', function($row) {
return $row->counter;
});
$data = $statistics->make();
echo $data['2016-01-01']->total;
```
回答13:
I know this is an OLD Question and there are multiple answers. How ever according to the docs and my experience on laravel below is the good "Eloquent way" of handling things
In your model, add a mutator/Getter like this
public function getCreatedAtTimeAttribute()
{
return $this->created_at->toDateString();
}
Another way is to cast the columns
in your model, populate the $cast array
$casts = [
'created_at' => 'string'
]
The catch here is that you won't be able to use the Carbon on this model again since Eloquent will always cast the column into string
Hope it helps :)
回答14:
You could also solve this problem in following way:
$totalView = View::select(DB::raw('Date(read_at) as date'), DB::raw('count(*) as Views'))
->groupBy(DB::raw('Date(read_at)'))
->orderBy(DB::raw('Date(read_at)'))
->get();
来源：https://stackoverflow.com/questions/20603075/laravel-eloquent-get-results-grouped-by-days