How to customize Laravel WhereBetween if the value is not found - laravel

Question

Im using Laravel WhereBetween like this
$from = '2015-01-02';
$to = '2015-01-30';
$users = User::whereBetween('created_at', [$from,$to])->get();
If the date value not found in User model, then the date will not show right?
I still want to show the date, even the date not found then I set value to 0.
Then the output will be like this
[
{'2015-01-02': 201},
{'2015-01-03': 0},
{'2015-01-04': 0},
{'2015-01-05': 7},
...
{'2015-01-30': 0}
]
Thanks.

Answer 1

You need to execute following query at first to get all user created at the given range,
$data = User::select([
DB::raw('DATE(created_at) AS date'),
DB::raw('COUNT(id) AS count'),
])
->whereBetween('created_at', [$from,$to])
->groupBy('date')
->orderBy('date', 'ASC')
->get();
With above query, you will get count of user for each day and this will not give 0 value if no users created at that day.
Now, what you have to do is to change above collection to array and insert 0 values if no users created.
$userCount = $data->toArray();
$dataByDay = array();
foreach($userCount as $count){
$dataByDay[$count->date] = $count->count;
}
Now, insert zero values as:
$dateFrom = Carbon::parse($from)->format('Y-m-d');
$dateTo = Carbon::parse($to)->format('Y-m-d');
$days = $dateTo->diffInDays($dateFrom);
for($i=0; $i<$days; $i++){
$dateString = $dateFrom->format('Y-m-d');
if(!isset($chartDataByDay[ $dateString ] {
$dataByDay[ $dateString ] = 0;
}
}
Now, $dataByDay array gives what you want.
Hope you understand.