Cannot assign null to property ReportData::$journalEntryId of type int

Hello! I encountered an error while creating a report with the name "trialBalance"

Unable to assign null to property Abivia\Ledger\Models\ReportData::$journalEntryId of type int

This happened because the table named "journal_entries" was empty and JournalEntry::query()->max('journalEntryId') returned null and tried to put it in $reportData->journalEntryId which is of type int. As a quick fix, I used ?? 0 here https://github.com/abivia/ledger/blob/main/src/Reports/TrialBalanceReport.php#L55.

Stacktrace

```plaintext [2022-11-18 17:13:25] local.ERROR: Cannot assign null to property Abivia\Ledger\Models\ReportData::$journalEntryId of type int {"exception":"[object] (TypeError(code: 0): Cannot assign null to property Abivia\\Ledger\\Models\\ReportData::$journalEntryId of type int at /var/www/html/vendor/abivia/ledger/src/Reports/TrialBalanceReport.php:57) [stacktrace] #0 /var/www/html/vendor/abivia/ledger/src/Http/Controllers/ReportController.php(83): Abivia\\Ledger\\Reports\\TrialBalanceReport->collect() #1 /var/www/html/vendor/abivia/ledger/src/Http/Controllers/Api/ReportApiController.php(33): Abivia\\Ledger\\Http\\Controllers\\ReportController->generate() #2 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(46): Abivia\\Ledger\\Http\\Controllers\\Api\\ReportApiController->run() #3 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(260): Illuminate\\Routing\\ControllerDispatcher->dispatch() #4 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\\Routing\\Route->runController() #5 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(727): Illuminate\\Routing\\Route->run() #6 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}() #7 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #8 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle() #9 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(126): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #10 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(102): Illuminate\\Routing\\Middleware\\ThrottleRequests->handleRequest() #11 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(54): Illuminate\\Routing\\Middleware\\ThrottleRequests->handleRequestUsingNamedLimiter() #12 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Routing\\Middleware\\ThrottleRequests->handle() #13 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #14 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(728): Illuminate\\Pipeline\\Pipeline->then() #15 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(705): Illuminate\\Routing\\Router->runRouteWithinStack() #16 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(669): Illuminate\\Routing\\Router->runRoute() #17 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(658): Illuminate\\Routing\\Router->dispatchToRoute() #18 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(190): Illuminate\\Routing\\Router->dispatch() #19 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}() #20 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #21 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle() #22 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle() #23 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #24 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle() #25 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle() #26 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #27 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle() #28 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #29 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle() #30 /var/www/html/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(62): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #31 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Http\\Middleware\\HandleCors->handle() #32 /var/www/html/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #33 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Http\\Middleware\\TrustProxies->handle() #34 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #35 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(165): Illuminate\\Pipeline\\Pipeline->then() #36 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(134): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter() #37 /var/www/html/public/index.php(52): Illuminate\\Foundation\\Http\\Kernel->handle() #38 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/resources/server.php(16): require_once('...') #39 {main} ```

abivia / ledger

Cannot assign null to property ReportData::$journalEntryId of type int #9