Convert sql script to eloquent - php

Question

recently I am using PHP Laravel with PostgreSQL and I don't know how to convert this sql script to eloquent.
SELECT v_extensions.extension,
(
SELECT COUNT(v_xml_cdr.uuid) FROM v_xml_cdr WHERE v_xml_cdr.extension_uuid = v_extensions.extension_uuid AND start_stamp >= #startDate AND end_stamp <= #endDate
)
FROM v_extensions ORDER BY count DESC LIMIT 1
I am trying to do something like this, but I don't know how can I write that extension_uuid from XmlCdr is equal to extension from Extension. Also these columns are not linked by foreign key on database.
$call = Extension::select('extension', function(){
XmlCdr::where('extension_uuid', )
})->limit(10)->get();
found it a way how to do it with DB::select
$query = 'SELECT v_extensions.extension, (SELECT COUNT(v_xml_cdr.uuid) FROM v_xml_cdr WHERE v_xml_cdr.extension_uuid = v_extensions.extension_uuid) FROM v_extensions LIMIT 1';
$result = DB::select($query);

Answer 1

First, Eloquent is an ORM. To use it you'll have to create Model(s) which extend the Eloquent model model docs and define the relationships on them
relations docs
Assuming you did it, you should have something like this:
class ExtensionCDR extends \Illuminate\Database\Eloquent\Model
{
protected $primaryKey = "uuid"; // primary key column name
protected $table = "v_xml_cdr"; // by default Eloquent assumes your table has the same name as the class - more or less
// add relations like
public function extensions()
{
return $this->hasMany(Extensions::class); //further parameters may needed - see docs
}
}
class Extensions extends \Illuminate\Database\Eloquent\Model
{
protected $table = "v_extensions";
// add relations
}
With this you can do this (anywhere basically):
(I'm not sure about which table has the relevant timestamps)
// this is the case where the timestamps are on the related model
$result = ExtensionCDR::whereHas('extensions', function ($query) use($start, $end) {
return $query->whereDate('start_stamp', '>', $start)
->whereDate('start_stamp', '<', $end);
})->get();
I understand that this won't be a perfect (copy/pasta) answer, but I hope it will steer you in the right direction;
In case I misunderstood you completely, just use the Database module with raw queries like so: raw things