One hour interval - Laravel - laravel

Question

I'm trying to select all records based on date/time.
I have this timestamps in postgreSQL:
13/12/2020 11:00:00
14/12/2020 11:31:00
14/12/2020 12:30:00
14/12/2020 13:00:00
15/12/2020 02:00:00
I have a code in the controller getting all records:
$start_date = date('d/m/Y 00:00:00');
$end_date = date('d/m/Y 23:59:59');
if($request->start_date != '' && $request->end_date != '')
{
// if user fill dates
$dateScope = array($request->start_date, $request->end_date);
} else {
// default load page - today
$dateScope = array($start_date, $end_date);
};
$results = Tablemodel1::whereBetween('table1.recordtime', $dateScope)
->selectRaw('table1.recordtime','table2.info')
->orderBy('recordtime', 'ASC')
->get();
The goal is to select only records in every hour like this:
13/12/2020 11:00:00
14/12/2020 13:00:00
15/12/2020 02:00:00
I get error when use:
$results = Tablemodel1::whereBetween('table1.recordtime', $dateScope)
->selectRaw('extract(hour from table1.recordtime)','table2.info')
->orderBy('recordtime', 'ASC')
->get();
The error is:
Undefined index: recordtime

Answer 1

You could use LIKE to get the records with timestamps that have no minutes or seconds and if there's no other processing required.
$results = Tablemodel1::whereBetween('table1.recordtime', $dateScope)
->where('table1.recordtime','LIKE', '%:00:00%')
->selectRaw('table1.recordtime','table2.info')
->orderBy('recordtime', 'ASC')
->get();
Also, your query could probably work with this slight fix (AS column_name)
$results = Tablemodel1::whereBetween('table1.recordtime', $dateScope)
->selectRaw('extract(hour from table1.recordtime) AS recordtime','table2.info')
->orderBy('recordtime', 'ASC')
->get();

Answer 2

Please try something like this:
$result = Tablemodel1::select([
DB::raw('count(table2.info) as counted_info'),
DB::raw('DATE_FORMAT(table1.recordtime, "%H") hour'),
])
->whereBetween('table1.recordtime', $dateScope)
->groupBy('hour')
->orderBy('hour')
->get();
You should do the next steps:
Format date
Group by formatted date (Example: DATE_FORMAT(orders.created_at, "%b %d") day)
Sort (optional)
collect data
All possible formates described here:
enter link description here