laravel firstOrNew在使用mutator作为日期时不起作用

Question

I'm trying to prevent importing duplicate records from csv file, everything is fine when checking for all items, but when I want to check for duplicate date, it doesn't work because in the model I'm using mutator function to change date format.

public function setPostingdateAttribute($date) {
    $this->attributes['postingdate'] = Carbon::createFromFormat('n/j/Y', $date)->format('Y/m/d');
}

in function for implementing importing csv file

$data = array_combine($escapedHeader, $columns);
$details = $data['details'];
$postingdate = $data['postingdate'];
$slip = $data['checkorslip'];
$addchecks = Checks::firstOrNew(['postingdate'=>$postingdate]);
$addchecks->details = $details;
$addchecks->slip = $slip;
$addchecks->save();

Answer 1

是的，这是已知问题，据我所记得，我过去曾经创建过Pull请求，可以解决该问题，但该请求被拒绝（或在Laravel github上提出），因此如果您使用firstOrNew或firstOrCreate可能会让您感到意外结果。