How To Solve Laravel and MySql Error Called SQLSTATE[23000]

Question

I want to create a Registration form. So, I have created a RegShortController.php file and after I have created view file called RegShort.blade.php . In RegShortController.php file , I have used a function called insert. But , When I run the Web Site , I got this error -

" SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'name' cannot be null (SQL: insert into academic ( name , username , pw ) values (, , )) "

So , How to Fix this ??

Here is the RegShort.blade.php file

Unfortunately , I have removed name attributes in username and password when I edit this Thread. Now , I fixed it.

<form action="{{ route('RegShort') }}" method="post" enctype="multipart/form-data">

{{ csrf_field() }}

<div class="form-group">
    <label>Name : *</label>
    <input type="text" class="form-control" name="name">
  </div>

  <div class="form-group">
    <label>Username : *</label>
    <input type="text" class="form-control" name="username" required>
  </div>

  <div class="form-group">
    <label>Password : *</label>
    <input type="password" class="form-control" name="password">
  </div>

  <button type="submit" class="btn btn-primary" name="submit">Submit</button>

</form>

Here is the RegShortController.php file

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use DB;

class RegShortController extends Controller
{

    public function index()
    {
        return view('RegShort');
    }

    function insert(Request $req)
    {

        $name = $req->input('name');
        $username = $req->input('username');
        $password = $req->input('password');

        $data = array("name"=>$name,'username'=>$username,"pw"=>$password);

        DB::table('academic')->insert($data);

    }

}

Here is the Route that I have created.

Route::any('/RegShort', 'RegShortController@insert')->name('RegShort');

Answer 1

name field must be non empty, so u should validate data before inserting it (server side validation):

function insert(Request $req)
{

    $this->validate($req, [
       'name' => 'required'
    ]);

    $name = $req->input('name');
    $username = $req->input('username');
    $password = $req->input('password');

    $data = array("name"=>$name,'username'=>$username,"pw"=>$password);

    DB::table('academic')->insert($data);

}

BTW would be nice to validate data by javascript as well before sending data to server (client side validation).

Edit ur HTML, uve missed name attributes for ur inputs:

<form action="{{ route('RegShort') }}" method="post" enctype="multipart/form-data">

{{ csrf_field() }}

<div class="form-group">
    <label>Name : *</label>
    <input type="text" class="form-control" name="name">
  </div>

  <div class="form-group">
    <label>Username : *</label>
    <input type="text" class="form-control" name="username" required>
  </div>

  <div class="form-group">
    <label>Password : *</label>
    <input type="password" name="password" class="form-control">
  </div>

  <button type="submit" class="btn btn-primary" name="submit">Submit</button>

</form>

Also change ur routes:

Route::get('/RegShort', 'RegShortController@index')->name('RegShort');
Route::post('/RegShort', 'RegShortController@insert');

Answer 2

It seems that you are unable to get data from the $req object. Be sure to check your data before inserting into the table.

Answer 3

you dont have name attribute for username and password

<div class="form-group">
    <label>Name : *</label>
    <input type="text" class="form-control" name="name">
  </div>

  <div class="form-group">
    <label>Username : *</label>
    <input type="text" name="username" class="form-control" required>
  </div>

  <div class="form-group">
    <label>Password : *</label>
    <input type="password" name="password" class="form-control">
  </div>

Answer 4

Try to update html:

You are messing: name attribute here

<input type="text" name="username" class="form-control" required>
<input type="password" name="password" class="form-control">

Code:

<form action="{{ route('RegShort') }}" method="post" enctype="multipart/form-data">

{{ csrf_field() }}

<div class="form-group">
    <label>Name : *</label>
    <input type="text" class="form-control" name="name">
  </div>

  <div class="form-group">
    <label>Username : *</label>
    <input type="text" name="username" class="form-control" required>
  </div>

  <div class="form-group">
    <label>Password : *</label>
    <input type="password" name="password" class="form-control">
  </div>

  <button type="submit" class="btn btn-primary" name="submit">Submit</button>

</form>