Data truncated in date fields

The issue you're encountering is likely due to the way the date values are being formatted or concatenated before being inserted into the database. The spaces in the date values suggest that there might be an issue with how the date strings are being handled in your code.

Here are a few steps to troubleshoot and resolve this issue:

1. Check the Form Input Handling: Ensure that the date input from the form is being correctly captured and formatted before being passed to the database. You can use Laravel's built-in validation and date formatting features to handle this.

2. Use Carbon for Date Handling: Laravel uses the Carbon library for date manipulation. Ensure that you are using Carbon to handle and format your dates correctly.

3. Inspect the Livewire Component: Since you are using Livewire, make sure that the date values are being correctly bound and passed to the backend.

4. Database Migration: Ensure that your database migration for the students table has the correct data types for the date fields.

Here is a step-by-step solution:

Step 1: Validate and Format Date Input

In your Livewire component, ensure that you are validating and formatting the date input correctly. For example:

use Carbon\Carbon;

public function saveStudent()
{
    $this->validate([
        'birthday' => 'required|date',
        'updated_at' => 'required|date',
        'created_at' => 'required|date',
    ]);

    $student = new Student();
    $student->user_id = $this->user_id;
    $student->birthday = Carbon::parse($this->birthday)->format('Y-m-d');
    $student->updated_at = Carbon::parse($this->updated_at)->format('Y-m-d');
    $student->created_at = Carbon::parse($this->created_at)->format('Y-m-d');
    $student->save();
}

Step 2: Ensure Correct Data Types in Migration

Make sure your migration file defines the date fields correctly:

Schema::create('students', function (Blueprint $table) {
    $table->id();
    $table->unsignedBigInteger('user_id');
    $table->date('birthday');
    $table->timestamps();
});

Step 3: Debugging

If the issue persists, add some debugging statements to check the values before they are inserted into the database:

public function saveStudent()
{
    $this->validate([
        'birthday' => 'required|date',
        'updated_at' => 'required|date',
        'created_at' => 'required|date',
    ]);

    $birthday = Carbon::parse($this->birthday)->format('Y-m-d');
    $updated_at = Carbon::parse($this->updated_at)->format('Y-m-d');
    $created_at = Carbon::parse($this->created_at)->format('Y-m-d');

    // Debugging output
    dd($birthday, $updated_at, $created_at);

    $student = new Student();
    $student->user_id = $this->user_id;
    $student->birthday = $birthday;
    $student->updated_at = $updated_at;
    $student->created_at = $created_at;
    $student->save();
}

This will help you verify that the dates are correctly formatted before being inserted into the database.

By following these steps, you should be able to resolve the issue with spaces being inserted into your date fields.