Laravel Trailing Data Exception when model save or update - php

Question

I have problem with update the model data in laravel 5.6,
After many time I find that actually problem is with created_at and updated_at.
My code:
$editStuState = StuAtt::where('studentId' , '=' , 1007)->first();
dd($editStuState -> created_at);
and dd($editStuState)
StuAtt {#382 ▼
#table: "stu_attendance"
#connection: "mysql"
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:7 [▼
"id" => "3"
"studentId" => "1007"
"present" => "7"
"absent" => "2"
"leave" => "6"
"created_at" => "2018-04-19 07:01:19.929554"
"updated_at" => "2018-04-19 02:31:19.000000"
]
#original: array:7 [▼
"id" => "3"
"studentId" => "1007"
"present" => "7"
"absent" => "2"
"leave" => "6"
"created_at" => "2018-04-19 07:01:19.929554"
"updated_at" => "2018-04-19 02:31:19.000000"
]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
+timestamps: true
#hidden: []
#visible: []
#fillable: []
#guarded: array:1 [▶]
}
Error that appears when I print the created_at field:
InvalidArgumentException
Trailing data
Where is mistake and how fix it?

Answer 1

Trailing data is a Carbon error, it's because you probably use PostgreSQL, and DB's date returns milliseconds.
"created_at" => "2018-04-19 07:01:19.929554"
You can add the following method to your (base) model.
// ...
public function getDateFormat()
{
return 'Y-m-d H:i:s.u';
}
}