Recently I have changed to Laravel from Codeigniter, everything was going fine except I encountered a problem with Session::flash.
when I create new user I get success message but It will persist for 2 requests, even I didn't pass the validator: 
my code in UsersController:
function getCreateUser(){
$config = array(
'pageName' => 'createUser',
'pageTitle' => 'Create User',
'formUrl' => action('UsersController@postCreateUser'),
'modelFields' => array(
array('db_name' => 'employee_id', 'text' => 'Employee Id', 'mandatory' => TRUE),
array('db_name' => 'full_name', 'text' => 'Full Name', 'mandatory' => TRUE),
array('db_name' => 'email', 'text' => 'Email', 'mandatory' => FALSE),
array('db_name' => 'password', 'text' => 'Password','value' => '12345', 'mandatory' => TRUE)
),
'submit_text' => 'Create'
);
return View::make('layouts.form', $config);
}
function postCreateUser(){
$config = array(
'pageName' => 'createUser',
'pageTitle' => 'Create User',
'formUrl' => action('UsersController@postCreateUser'),
'modelFields' => array(
array('db_name' => 'employee_id', 'text' => 'Employee Id', 'mandatory' => TRUE),
array('db_name' => 'full_name', 'text' => 'Full Name', 'mandatory' => TRUE),
array('db_name' => 'email', 'text' => 'Email', 'mandatory' => FALSE),
array('db_name' => 'password', 'text' => 'Password','value' => '12345', 'mandatory' => TRUE)
),
'submit_text' => 'Create'
);
$validator = User::validate(Input::all());
if($validator->passes()){
$user = new User(Input::all());
$user->password = Hash::make(Input::get('password'));
$user->Company_id = '1';
$user->save();
Session::flash('message', 'User Created Successfully!');
Session::flash('alert-class', 'alert-success');
return View::make('layouts.form', $config);
}
return View::make('layouts.form', $config)->withErrors($validator->messages());
}in form.blade:
@if ( $errors->count() > 0 )
<div class="alert alert-danger">
<p>The following errors have occurred:</p>
<ul>
@foreach( $errors->all() as $message )
<li>{{ $message }}</li>
@endforeach
</ul>
</div>
@endifin master.blade:
@if(Session::has('message'))
<p class="alert {{ Session::get('alert-class', 'alert-info') }} alert-dismissable"> {{ Session::get('message') }}</p>
@endifMaybe I'm not alone with this issue, here is another unanswered question.
Update
For anyone in future facing this problem: Never flash session data without redirecting.
My code now looks like this:
function postCreateUser(){
$validator = User::validate(Input::all());
if($validator->passes()){
$user = new User(Input::all());
$user->password = Hash::make(Input::get('password'));
$user->Company_id = '1';
$user->save();
Session::flash('message', 'User Created Successfully!');
Session::flash('alert-class', 'alert-success');
} else {
Session::flash('message', Helpers::formatErrors($validator->messages()->all()));
Session::flash('alert-class', 'alert-danger');
}
return Redirect::action('UsersController@getCreateUser');
}