Couldn't get relation model value in maatwebsite laravel - laravel

Question

The work of this function is to generate report of specific condition. Thus i am generating report with two tables ( User and Booking ) With primary key is userid and bookingid. Both the table is be clubbed into relations. Now i want to generate excel with using maatwebsite package at this condition. From (booking table) and to (booking table) with ticketstatus (booking table) and also with usertype ( from usertable ). For example From 01.09.2018 to 23.09.2018 with ticket status as "booked " and usertype as "Normal or agent". But i am getting an error, i am using FromQuery method in maatwebsite to perform this function.
I am adding all the codes here, User Model :
<?php
namespace App;
use App\Booking;
use App\Wallet;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
protected $primaryKey = 'userid';
protected $fillable = ['name', 'phone', 'email','password','usertype'];
protected $dates = [
'createdAt'
];
const CREATED_AT = 'createdAt';
const UPDATED_AT = 'updatedAt';
public function bookings()
{
return $this->hasMany('App\Booking', 'userid');
}
public function walletUsers()
{
return $this->hasOne('App\Wallet', 'userid');
}
public function supports()
{
return $this->hasMany('App\Help', 'userid');
}
public function getNameAttribute($value)
{
return ucfirst($value);
}
}
Booking Model :
<?php
namespace App;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Model;
class Booking extends Model
{
protected $primaryKey = 'bookingid';
protected $dates = [
'createdAt','updatedAt'
];
const CREATED_AT = 'createdAt';
const UPDATED_AT = 'updatedAt';
public function users()
{
return $this->belongsTo('App\User', 'userid');
}
public function getDateOfIssueAttribute($value) {
return Carbon::parse($value)->format('d-M-Y , h:m a');
}
public function getDateOfCancellationAttribute($value) {
return Carbon::parse($value)->format('d-M-Y , h:m a');
}
public function getDojAttribute($value) {
return Carbon::parse($value)->format('d-M-Y , h:m a');
}
}
Now Controller :
public function report(Request $request){
$from = $request->from;
$to = $request->to;
$bookingtype = $request->bookingtype;
$usertype = $request->usertype;
return (new BookingsExport($from, $to, $bookingtype, $usertype))->download('invoices.xlsx');
}
Route :
Route::post('/admin/reports/collect',[
'uses' => 'ReportController#report',
'as' => 'reports.generate'
]);
Maatwebsite Class:
<?php
namespace App\Exports;
use App\Booking;
use App\User;
use Carbon\Carbon;
use App\Http\Controllers\ReportController;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithStrictNullComparison;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use PhpOffice\PhpSpreadsheet\Shared\Date;
use Maatwebsite\Excel\Concerns\WithColumnFormatting;
use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
use Maatwebsite\Excel\Concerns\WithMapping;
class BookingsExport implements FromQuery, WithStrictNullComparison, WithHeadings, ShouldAutoSize, WithColumnFormatting, WithMapping {
use Exportable;
public function __construct($from, $to, $bookingtype, $usertype)
{
$this->from = $from;
$this->to = $to;
$this->bookingtype = $bookingtype;
$this->usertype = $usertype;
}
public function headings(): array
{
return [
'Booking Id',
'Block Key',
'Bus Type',
'DOJ',
'status',
'Created At',
'Updated At',
'Usertype',
'Name'
];
}
public function map($booking): array
{
return [
$booking->bookingid,
$booking->blockkey,
$booking->busType,
$booking->doj,
$booking->status,
$booking->createdAt,
$booking->updatedAt,
$booking->users->usertype,
$booking->users->name
];
}
public function columnFormats(): array
{
return [
'D' => 'dd-mm-yyy',
'E' => NumberFormat::FORMAT_DATE_DDMMYYYY
];
}
public function query()
{
$from = $this->from;
$to = $this->to;
$bookingtype = $this->bookingtype;
$usertype = $this->usertype;
if(isset($from) && isset($to) && is_null($bookingtype) && is_null($usertype))
{
return Booking::query()->whereBetween('createdAt',[$from, $to]);
}
if(isset($from) && isset($to) && isset($bookingtype) && is_null($usertype))
{
return Booking::query()->whereBetween('createdAt',[$from, $to])->where('status','=', $bookingtype);
}
if(isset($from) && isset($to) && isset($bookingtype) && isset($usertype))
{
return Booking::query()->with('users')->whereHas("users", function($subQuery){
$subQuery->where("usertype", "=", $usertype);})->whereBetween('createdAt',[$from, $to])->where('status','=', $bookingtype);
}
}
}
The error i am getting is "Undefined variable: usertype" from the last query of Maatwebsite class file. But i am seeding all the values from controller to this, i even dd($usertype) but i am getting the value as agent, but it shows error while using in it query ! Kindly guide